CN107677364B - Air conditioner surge testing method and system - Google Patents

Air conditioner surge testing method and system Download PDF

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Publication number
CN107677364B
CN107677364B CN201710936776.8A CN201710936776A CN107677364B CN 107677364 B CN107677364 B CN 107677364B CN 201710936776 A CN201710936776 A CN 201710936776A CN 107677364 B CN107677364 B CN 107677364B
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wind speed
test
air conditioner
real
sound pressure
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CN107677364A (en
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兰江华
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Aux Air Conditioning Co Ltd
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Aux Air Conditioning Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H17/00Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft

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  • General Physics & Mathematics (AREA)
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Abstract

The invention provides an air conditioner surge testing method and system, and relates to the technical field of air conditioner testing. The system is applied to an air conditioner surge test system, the system comprises a test host, a front-end collector and a sensing unit, the test host and the sensing unit are respectively and electrically connected with the front-end collector, and the method comprises the following steps: the front-end collector collects real-time characteristic information of an air outlet of an air conditioner indoor unit to be detected through the sensing unit, wherein the real-time characteristic information comprises at least one of wind speed information and sound pressure information; the front-end collector sends the collected real-time characteristic information to the test host; and the test host judges whether surge noise occurs or not according to the real-time characteristic information. The test result obtained by analyzing according to the objective real-time characteristic information change is more objective. And the whole testing process is automatically realized, and the test can be carried out continuously for a long time. The efficiency of the test is improved, the human cost of reducing the test.

Description

Air conditioner surge testing method and system
Technical Field
The invention relates to air conditioner testing, in particular to an air conditioner surge testing method and system.
Background
The surge of the air conditioner is the phenomenon that the air conditioner gives out annoying sound similar to uneven breathing of a patient when an internal machine of the air conditioner runs. The surge phenomenon of the air conditioner indoor unit is not only a loss to the air conditioner indoor unit itself. Meanwhile, the surge noise associated with the surge phenomenon also greatly influences the life quality of users. Therefore, the noise generated by the surge of the air conditioner indoor unit is also the focus of customer complaints.
In response to this problem, air conditioner manufacturers are constantly making technological changes. In the process of technical reform, whether the reformed technical scheme is effective or not needs to be continuously tested. Meanwhile, whether the air conditioner can effectively run or not when the air conditioner is applied to each air conditioner after the technical innovation needs to pass the test. However, the current test for whether surge noise still exists in the air conditioner indoor unit is generally judged by a tester by hearing after the air conditioner indoor unit is operated. The advantages of the method are direct; the method has the defects of strong subjectivity, requirement of listening by a person in the whole experiment, generally time consumption of 2-4 hours when testing under each working condition, and easy fatigue and missed listening and misjudgment of experimenters.
Disclosure of Invention
In view of this, the invention aims to provide an air conditioner surge testing method and device to solve the problems of strong subjectivity, inaccurate testing result, high testing labor cost and the like of manual testing.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the air conditioner surge testing method is applied to an air conditioner surge testing system, the system comprises a testing host, a front-end collector and a sensing unit, the testing host and the sensing unit are respectively and electrically connected with the front-end collector, and the method comprises the following steps: the front-end collector collects real-time characteristic information of an air outlet of an air conditioner indoor unit to be detected through the sensing unit, wherein the real-time characteristic information comprises at least one of wind speed information and sound pressure information; the front-end collector sends the collected real-time characteristic information to the test host; and the test host judges whether surge noise occurs or not according to the real-time characteristic information.
Compared with the prior art, the air conditioner surge testing method has the following advantages:
the method of the invention judges whether surge noise occurs or not according to the real-time characteristic information by arranging the real-time characteristic information of the air inlet acquired by the sensing unit at the air outlet. Wherein the real-time characteristic information includes at least one of wind speed information and sound pressure information. Whether the wind speed changes or the sound pressure changes can accurately represent whether the surging noise occurs or not. Meanwhile, the collected wind speed information and sound pressure information of the air outlet are objective data, and the test result obtained by analyzing according to the change of the objective data is more objective. And the whole testing process is automatically realized, and the test can be carried out continuously for a long time. The efficiency of the test is improved.
The invention also aims to provide an air conditioner surge testing system to solve the problems of strong subjectivity, inaccurate testing result, high testing labor cost and the like of manual testing.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the system comprises a test host, a front-end collector and a sensing unit, wherein the test host and the sensing unit are respectively and electrically connected with the front-end collector, and the test host is also electrically connected with an air conditioner internal unit to be tested; the test host sends a test instruction to the air conditioner indoor unit to be tested, so that the air conditioner indoor unit to be tested responds to the test instruction and enters each test working condition in sequence; the front-end collector collects real-time characteristic information of an air outlet of the air conditioner indoor unit to be detected through the sensing unit, wherein the real-time characteristic information comprises at least one of wind speed information and sound pressure information; the front-end collector sends the collected real-time characteristic information to the test host; and the test host judges whether surge noise occurs or not according to the real-time characteristic information.
Compared with the prior art, the air conditioner surge testing system and the air conditioner surge testing method have the same advantages, and are not repeated herein.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram illustrating an air conditioner surge testing system according to a preferred embodiment of the present invention.
Fig. 2 is a schematic structural diagram of another surge testing system for air conditioners according to a preferred embodiment of the present invention.
Fig. 3 is a flow chart illustrating steps of a surge testing method for an air conditioner according to a preferred embodiment of the present invention.
Fig. 4 is a flowchart illustrating sub-steps of step S104 in fig. 3.
Fig. 5 is a flow chart illustrating steps of another surge testing method for air conditioners according to a preferred embodiment of the present invention.
Icon: 100-air conditioner surge test system; 200-air conditioner surge test system; 240-air conditioner indoor unit to be tested; 10-a test host; 20-a front end collector; 30-a sensing unit; 40-an air conditioner indoor unit to be tested; 41-air outlet.
Detailed Description
It should be noted that the embodiments and features of the embodiments 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.
First embodiment
Referring to fig. 1, fig. 1 shows an air conditioner surge testing system 100 according to an embodiment of the present invention. The air conditioner surge test system 100 includes a test host 10, a front end collector 20, and a sensing unit 30. The test host 10 and the sensing unit 30 are electrically connected to the front end collector 20, respectively.
The test host 10 is further electrically connected with the air conditioner internal unit 40 to be tested. And sending a test instruction to the air conditioner internal unit 40 to be tested by the test host 10. And the air conditioner internal unit 40 to be tested responds to the test instruction to enter each test working condition in sequence and operates. It should be noted that the running time of the air conditioner internal unit 40 to be tested in each test condition may be preset. The test instruction may be an instruction for triggering the air conditioner internal unit 40 to be tested to sequentially enter each test condition; the test instruction may also include an instruction for triggering the air conditioner indoor unit 40 to be tested to enter any specified test condition. The surge can be conveniently tested under what working condition, and the air conditioner can be conveniently improved.
The front-end collector 20 collects real-time characteristic information of the air outlet 41 of the air conditioner internal unit 40 to be tested through the sensing unit 30. The real-time characteristic information includes at least one of wind speed information and sound pressure information. Alternatively, the sensing unit 30 may be a plurality of said wind speed sensors (not shown) or a plurality of sound pressure sensors (not shown). When the air conditioner indoor unit to be tested comprises a plurality of air speed sensors, the plurality of air speed sensors are distributed at the air outlet 41 of the air conditioner indoor unit to be tested in an array form, so that each air speed sensor corresponds to an air outlet area of the air outlet 41. It should be noted that the air outlet 41 may be equally divided into a plurality of air outlet regions, and each air speed sensor corresponds to an air outlet region to obtain air speed information of the air outlet region. When the sound pressure sensor includes a plurality of sound pressure sensors, the sound pressure sensors are distributed in the air outlet 41 in an array form, so that each sound pressure sensor corresponds to an air outlet area of the air outlet 41. It should be noted that the air outlet 41 may be equally divided into a plurality of air outlet regions, and each sound pressure sensor corresponds to an air outlet region to obtain sound pressure information of the air outlet region. When the wind speed sensor and the sound pressure sensor are included, the wind speed sensors are distributed in the air outlet 41 of the air conditioner indoor unit 40 to be tested in an array form, and the sound pressure sensors are also distributed in the air outlet 41 of the air conditioner indoor unit 40 to be tested in an array form, so that the wind speed sensors and the sound pressure sensors are not interfered with each other. The front-end collector 20 collects the wind speed information of the corresponding wind outlet area through each wind speed sensor; the front end collector 20 collects the sound pressure information of the corresponding air outlet region through each sound pressure sensor. The wind speed information may include a real-time wind power value, real-time wind direction information, and the like. The sound pressure information includes real-time sound pressure values.
The front-end collector 20 sends the collected real-time feature information to the test host 10. The test host 10 judges whether surge noise occurs according to the real-time characteristic information. Optionally, whether surge noise occurs in the corresponding air outlet area or not may be determined according to the air speed information acquired by each air speed sensor. Whether surge noise occurs in the corresponding air outlet area or not can be judged according to the sound pressure information acquired by each sound pressure sensor. And then can accurate definite take place the concrete position of surge noise, do benefit to the maintenance.
In other embodiments, an air conditioner surge testing system 200 for a wall mounted air conditioner indoor unit 240 under test is illustrated in fig. 2. The air conditioner surge test system 200 and the air conditioner surge test system 100 work on the same principle, but the air conditioner surge test system 200 is structurally adapted to a wall-mounted air conditioner indoor unit 240 to be tested relative to the air conditioner surge test system 100.
Second embodiment
Referring to fig. 3, fig. 3 is a flowchart illustrating steps of a surge testing method for an air conditioner according to an embodiment of the present invention. The method is applied to the air conditioner surge testing system 100 in the first embodiment, and the sensing unit 30 in the air conditioner surge testing system 100 includes a plurality of the wind speed sensors. As shown in fig. 3, the method comprises the steps of:
step S101, sending a test instruction to the air conditioner internal unit 40 to be tested by the test host 10, so that the air conditioner internal unit 40 to be tested responds to the test instruction and sequentially enters each test condition.
In this embodiment, the test condition includes all operating modes of the normal use of air conditioner internal unit, every the operating mode all includes refrigeration or heating, sweep wind direction and corresponding normal wind speed time curve etc.. And the air conditioner internal unit 40 to be tested enters a test working condition according to the test instruction, operates for a preset time length under each test working condition according to a preset working condition test sequence, and automatically switches to the corresponding next test working condition after the operation is finished.
In other embodiments, the air conditioner internal unit 40 to be tested may also enter a certain specified test condition corresponding to the test instruction according to the test instruction.
Step S102, the front end collector 20 collects real-time characteristic information of the air outlet 41 of the air conditioner internal unit 40 to be measured through the sensing unit 30.
In this embodiment, the real-time characteristic information includes wind speed information. Step S102 may include the front end collector 20 collecting the wind speed information of the corresponding wind outlet area through each wind speed sensor.
The applicant researches and finds that when the pressure or the flow of a fan suction port of the air conditioner internal unit 40 to be tested is suddenly reduced, but the pressure of the resistance of a fan system is not instantly and correspondingly reduced, the phenomenon that the air flows backwards to the fan is locally generated at the air outlet 41 of the air conditioner internal unit 40 to be tested; or when the system resistance pressure is reduced to be lower than the outlet pressure of the cross-flow fan, the air flows to the air outlet 41 again, and the repeated airflow oscillation gives out the phenomenon of dysphoria and uneven breathing of similar patients. Therefore, whether the surge noise occurs can be accurately determined by objective real-time characteristic information such as the wind speed information or the sound pressure information of the outlet 41. The judgment result is more objective and accurate.
Step S103, the front-end collector 20 sends the collected wind speed information to the test host 10.
In this embodiment, the front-end collector 20 sends the wind speed information collected by each wind speed sensor to the test host 10.
And step S104, the test host 10 judges whether surge noise occurs according to the wind speed information.
In this embodiment, the test host 10 determines whether surge noise occurs in the corresponding air outlet area according to the obtained wind speed information collected by each wind speed sensor. Alternatively, as shown in fig. 4, step S104 may include the following sub-steps:
in the substep S1041, the test host 10 generates a wind speed time curve for each test condition according to the wind speed information.
In this embodiment, the test host 10 generates a wind speed time curve of the corresponding wind outlet area under the test condition of the current operation of the air conditioner internal unit 40 to be tested according to the wind speed information acquired from each wind speed sensor.
And a substep S1042 of judging whether surge noise occurs according to the fluctuation range of the wind speed time curve relative to a normal wind speed time curve corresponding to the test working condition, wherein the normal wind speed time curve is measured in advance and stored in the test host 10.
In this embodiment, the normal wind speed information of each test condition may be tested in advance, and a corresponding normal wind speed time curve may be generated according to the normal wind speed information and stored in the test host 10. The test host 10 obtains the current running test condition of the air conditioner indoor unit 40 to be tested from the air conditioner indoor unit to be tested, and obtains a corresponding pre-stored normal wind speed time curve according to the running test condition of the air conditioner indoor unit to be tested. And comparing the generated wind speed time curve corresponding to each wind speed sensor with the normal wind speed time curve. And when the fluctuation range of the wind speed time curve relative to the normal wind speed time curve does not exceed 10%, judging that the surge noise is not generated. And judging that slight surge noise is generated when the fluctuation range of the wind speed time curve relative to the normal wind speed time curve is between 10% and 30%. And judging that obvious surge noise is generated when the fluctuation range of the wind speed time curve relative to the normal wind speed time curve is between 30% and 60%. And judging that severe surge noise is generated when the fluctuation range of the wind speed time curve relative to the normal wind speed time curve exceeds 60%.
Step S105, the test host 10 generates a test report according to the determination result and the corresponding test condition.
In this embodiment, the test host 10 generates a test report corresponding to each test condition. Alternatively, the test report may be generated according to the judgment result of the test host 10 on whether the surge noise occurs during the operation of the air conditioner internal unit 40 to be tested under the test condition. For ease of servicing.
Third embodiment
Referring to fig. 5, fig. 5 is a flowchart illustrating steps of a surge testing method for an air conditioner according to an embodiment of the present invention. The method is applied to the air conditioner surge testing system 100 in the first embodiment, and the sensing unit 30 in the air conditioner surge testing system 100 includes a plurality of the sound pressure sensors. As shown in fig. 5, the method comprises the steps of:
step S201, sending a test instruction to the air conditioner internal unit 40 to be tested by the test host 10, so that the air conditioner internal unit 40 to be tested responds to the test instruction and sequentially enters each test condition.
In this embodiment, the test condition includes all operating modes of the normal use of air conditioner internal unit, every the operating mode all includes refrigeration or heating, sweep wind direction and corresponding normal wind speed time curve etc.. And the air conditioner internal unit 40 to be tested enters a test working condition according to the test instruction, operates for a preset time length under each test working condition according to a preset working condition test sequence, and automatically switches to the corresponding next test working condition after the operation is finished.
In other embodiments, the air conditioner internal unit 40 to be tested may also enter a certain specified test condition corresponding to the test instruction according to the test instruction.
In step S202, the front end collector 20 collects real-time characteristic information of the air outlet 41 of the air conditioner internal unit 40 to be measured through the sensing unit 30.
In the present embodiment, the fact characteristic information includes sound pressure information. Step S102 may include the front end collector 20 collecting the sound pressure information of the corresponding wind outlet region through each sound pressure sensor.
In step S203, the front-end collector 20 sends the collected sound pressure information to the test host 10.
In this embodiment, the front-end collector 20 sends the sound pressure information collected by each sound pressure sensor to the test host 10.
Step S204, the test host 10 judges whether surge noise occurs according to the sound pressure information.
In this embodiment, the test host 10 determines whether surge noise occurs in the corresponding outlet air region according to the obtained sound pressure information collected by each sound pressure sensor. Optionally, the test host 10 generates a sound pressure time curve of each test condition according to the sound pressure information. And comparing the sound pressure time curve with the normal sound pressure corresponding to the test working condition to judge whether surge noise occurs.
In step S205, the test host 10 generates a test report according to the determination result and the corresponding test condition.
In other embodiments, when the sensing unit 30 includes a plurality of sound pressure sensors and a plurality of wind speed sensors, the real-time characteristic information obtained by the sensing unit 30 includes wind speed information and sound pressure information. Optionally, each wind speed sensor acquires the wind speed information of the corresponding wind outlet region, and each sound pressure sensor acquires the sound pressure information of the corresponding wind outlet region. And judging whether surge noise occurs or not according to the wind speed information and the sound pressure information, and comparing test reports obtained by judging according to different real-time characteristic information to determine the accuracy of the test result. For example, a test report generated based on the wind speed information is compared with a test report generated based on the sound pressure information, and when both the test reports show the occurrence of surge noise at the same time point, it indicates that the determination of the occurrence of surge noise is relatively accurate.
In summary, an embodiment of the present invention provides an air conditioner surge testing method applied to an air conditioner surge testing system, where the system includes a testing host, a front end collector and a sensing unit, the testing host and the sensing unit are electrically connected to the front end collector, respectively, and the method includes: the front-end collector collects real-time characteristic information of an air outlet of an air conditioner indoor unit to be detected through the sensing unit, wherein the real-time characteristic information comprises at least one of wind speed information and sound pressure information; the front-end collector sends the collected real-time characteristic information to the test host; and the test host judges whether surge noise occurs or not according to the real-time characteristic information. The judgment result is more accurate and objective, the whole testing process is automatically realized, and the test can be carried out continuously for a long time. The efficiency of the test is improved.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (8)

1. The utility model provides an air conditioner surge test method, its characterized in that is applied to air conditioner surge test system (100), the system includes test host (10), front end collector (20) and perception unit (30), test host (10) and perception unit (30) respectively with front end collector (20) electric connection, test host (10) and air conditioner internal unit (40) electric connection that awaits measuring, the method includes:
the test host (10) sends a test instruction to the air conditioner internal unit (40) to be tested, so that the air conditioner internal unit (40) to be tested responds to the test instruction and enters each test working condition in sequence; each test working condition comprises a refrigerating or heating direction and a wind sweeping direction; the test working condition further comprises at least one of a corresponding normal wind speed time curve and normal sound pressure;
the front-end collector (20) collects real-time characteristic information of an air outlet (41) of an air conditioner indoor unit (40) to be detected through the sensing unit (30), wherein the real-time characteristic information comprises at least one of wind speed information and sound pressure information;
the front-end collector (20) sends the collected real-time characteristic information to the test host (10);
the test host (10) judges whether surge noise occurs or not according to the real-time characteristic information;
wherein, the judging whether surge noise occurs according to the real-time characteristic information comprises: judging whether surge noise occurs according to the real-time characteristic information, a normal wind speed time curve corresponding to the current test working condition or the normal sound pressure;
when the real-time characteristic information comprises the wind speed information, the test host (10) generates a wind speed time curve of each test working condition according to the wind speed information;
and judging whether surge noise occurs or not according to the fluctuation range of the wind speed time curve relative to a normal wind speed time curve corresponding to the test working condition, wherein the normal wind speed time curve is measured in advance and stored in a test host (10).
2. The method of claim 1, wherein after the test mainframe (10) determines whether surge noise is occurring, the method further comprises:
and the test host (10) generates a test report according to the judgment result and the corresponding test working condition.
3. The method of claim 1, wherein the step of determining whether surge noise occurs according to the fluctuation range of the wind speed time curve relative to the normal wind speed time curve corresponding to the test condition comprises:
when the fluctuation range of the wind speed time curve relative to the normal wind speed time curve does not exceed 10%, judging that no surge noise is generated;
when the fluctuation range of the wind speed time curve relative to the normal wind speed time curve is between 10% and 30%, judging that slight surge noise is generated;
when the fluctuation range of the wind speed time curve relative to the normal wind speed time curve is between 30% and 60%, judging that obvious surge noise is generated;
and judging that severe surge noise is generated when the fluctuation range of the wind speed time curve relative to the normal wind speed time curve exceeds 60%.
4. The method according to claim 1, wherein the sensing unit (30) includes a plurality of wind speed sensors or a plurality of sound pressure sensors, the plurality of wind speed sensors are distributed in an array at an outlet (41) of the air conditioner indoor unit (40) to be tested, so that each wind speed sensor corresponds to an outlet area of the outlet (41), and the plurality of sound pressure sensors are distributed in an array at the outlet (41), so that each sound pressure sensor corresponds to an outlet area of the outlet (41);
the mode that the front-end collector (20) collects the real-time characteristic information of the air outlet (41) of the air conditioner internal unit (40) to be detected through the sensing unit (30) comprises one or the combination of the following modes:
the front-end collector (20) collects the wind speed information of the corresponding wind outlet area through each wind speed sensor; or
The front-end collector (20) collects the sound pressure information of the corresponding air outlet area through each sound pressure sensor.
5. The method of claim 4, wherein the determining by the test host (10) whether surge noise occurs based on the real-time characterization information comprises:
the test host (10) judges whether surge noise occurs in the corresponding air outlet area according to the air speed information acquired by each air speed sensor; or
And the test host (10) judges whether surge noise occurs in the corresponding air outlet area according to the sound pressure information acquired by each sound pressure sensor.
6. The surge testing system (100) of the air conditioner is characterized by comprising a testing host (10), a front-end collector (20) and a sensing unit (30), wherein the testing host (10) and the sensing unit (30) are respectively electrically connected with the front-end collector (20), and the testing host (10) is also electrically connected with an air conditioner indoor unit (40) to be tested; the test host (10) sends a test instruction to the air conditioner internal unit (40) to be tested, so that the air conditioner internal unit (40) to be tested responds to the test instruction and enters each test working condition in sequence; each test working condition comprises a refrigerating or heating direction and a wind sweeping direction; the test working condition further comprises at least one of a corresponding normal wind speed time curve and normal sound pressure; the front-end collector (20) collects real-time characteristic information of an air outlet (41) of the air conditioner indoor unit (40) to be detected through the sensing unit (30), wherein the real-time characteristic information comprises at least one of wind speed information and sound pressure information; the front-end collector (20) sends the collected real-time characteristic information to the test host (10); the test host (10) judges whether surge noise occurs or not according to the real-time characteristic information; judging whether surge noise occurs according to the real-time characteristic information comprises judging whether surge noise occurs according to the real-time characteristic information, a normal wind speed time curve corresponding to the current test working condition or the normal sound pressure; when the real-time characteristic information comprises the wind speed information, the test host (10) generates a wind speed time curve of each test working condition according to the wind speed information; and judging whether surge noise occurs or not according to the fluctuation range of the wind speed time curve relative to a normal wind speed time curve corresponding to the test working condition, wherein the normal wind speed time curve is measured in advance and stored in a test host (10).
7. The system according to claim 6, wherein the sensing unit (30) includes a plurality of wind speed sensors or a plurality of sound pressure sensors, the plurality of wind speed sensors are distributed in an array at an outlet (41) of the air conditioner indoor unit (40) to be tested, so that each wind speed sensor corresponds to an outlet area of the outlet (41), and the plurality of sound pressure sensors are distributed in an array at the outlet (41), so that each sound pressure sensor corresponds to an outlet area of the outlet (41); the front-end collector (20) collects the wind speed information of the corresponding wind outlet area through each wind speed sensor; the front-end collector (20) collects the sound pressure information of the corresponding air outlet area through each sound pressure sensor.
8. The system according to claim 7, characterized in that the test host (10) judges whether surge noise occurs in the corresponding wind outlet area according to the wind speed information collected by each wind speed sensor.
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