CN106679794B - System and method for testing mainboard motor driving circuit - Google Patents
System and method for testing mainboard motor driving circuit Download PDFInfo
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- CN106679794B CN106679794B CN201510761753.9A CN201510761753A CN106679794B CN 106679794 B CN106679794 B CN 106679794B CN 201510761753 A CN201510761753 A CN 201510761753A CN 106679794 B CN106679794 B CN 106679794B
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Abstract
The invention relates to a system and a method for testing a main board motor driving circuit, and belongs to the technical field of electronics. The mainboard motor driving circuit testing system comprises a buzzer, a microphone and an analysis module, so that the mainboard motor driving circuit to be tested can be used for driving the buzzer to make a sound; after the microphone is used for receiving the sound emitted by the buzzer, the analysis module judges whether the working state of the mainboard motor driving circuit to be tested is normal or not according to the sound recorded by the microphone, so that the effect of detecting the mainboard motor driving circuit is achieved. The test system of the method is simple in structure, low in cost, simple and convenient to operate, high in test accuracy and high in reliability.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to the technical field of electronic equipment detection, and specifically relates to a system and a method for testing a mainboard motor driving circuit.
Background
In the prior art, a PCBA is adopted to test the vibration state of a motor, and a third party is used for measuring voltage/current. Because the instability of the voltage/current measuring equipment or the abnormality of the equipment brings certain hidden danger and obstruction to production. For example, misdetection may be caused by inaccurate voltage/current measurement, which may result in the discharge of defective products, and the leakage or short circuit of the third-party device may burn the device itself and the motherboard.
Therefore, how to provide a testing method for a motherboard motor driving circuit with higher precision and better reliability has become an urgent technical problem to be solved in the field.
Disclosure of Invention
The present invention is directed to overcome the above-mentioned shortcomings in the prior art, and provides a system and a method for testing a motherboard motor driving circuit, in which a buzzer is driven by a direct current output by a vibration motor during operation, and then the sound generated by the buzzer is analyzed to determine whether the vibration motor is operating normally.
In order to achieve the above object, the system for testing a motherboard motor driving circuit according to the present invention comprises:
this mainboard motor drive circuit test system includes: the device comprises a buzzer, a microphone and an analysis module. The system comprises a main board motor driving circuit, a buzzer, a main board motor driving circuit and a main board motor driving circuit, wherein the buzzer is connected with the main board motor driving circuit to be tested and used for driving the buzzer to make a sound when the main board motor driving circuit works; the microphone is used for receiving the sound emitted by the buzzer; the analysis module is connected with the microphone and used for judging the working state of the mainboard motor driving circuit to be tested according to the sound recorded by the microphone.
In the mainboard motor driving circuit test system, the buzzer and the microphone are arranged in a shielding sound cavity.
The mainboard motor driving circuit testing system also comprises a control module, wherein the control module is connected with the mainboard motor driving circuit to be tested and is used for controlling the working state of the mainboard motor driving circuit according to user operation.
In the mainboard motor driving circuit test system, the control module is also connected with the analysis module and used for controlling the analysis module to analyze the sound recorded by the microphone when the mainboard motor driving circuit works.
In the mainboard motor driving circuit test system, the analysis module comprises a frequency analysis unit, an amplitude analysis unit and a judgment unit. The frequency analysis unit is used for analyzing the frequency of the sound recorded by the microphone; the amplitude analysis unit is used for analyzing the amplitude of the sound recorded by the microphone; and the judging unit is used for judging the working state of the mainboard motor driving circuit to be tested according to the analysis results of the frequency analysis unit and the amplitude analysis unit.
The invention also provides a method for testing the mainboard motor driving circuit, which comprises the following steps:
(1) the mainboard motor driving circuit to be tested drives a buzzer to make a sound;
(2) the microphone receives the sound emitted by the buzzer;
(3) and the analysis module judges the working state of the mainboard motor driving circuit to be tested according to the sound recorded by the microphone.
In the method for testing the mainboard motor driving circuit, before the step (1), the method further comprises the following steps:
(0) the control module controls the mainboard motor driving circuit to be in a working state according to user operation.
In the method for testing a motherboard motor driving circuit, the step (0) further includes: the control module controls the analysis module to analyze the sound recorded by the microphone when the main board motor driving circuit works.
In the test method of the mainboard motor driving circuit, the analysis module comprises: the step (3) comprises the following steps:
(31) the frequency analysis unit analyzes the frequency of the sound recorded by the microphone;
(32) the amplitude analysis unit analyzes the amplitude of the sound recorded by the microphone;
(33) and the judging unit judges the working state of the mainboard motor driving circuit to be tested according to the analysis results of the frequency analysis unit and the amplitude analysis unit.
In the test method of the mainboard motor driving circuit, the frequency analysis unit adopts an FTT analysis method to analyze the frequency of the sound recorded by the microphone; the amplitude analysis unit analyzes the amplitude of the sound recorded by the microphone by adopting an FTT analysis method.
By adopting the test system and the test method of the mainboard motor driving circuit, the system comprises the buzzer, the microphone and the analysis module, so that the mainboard motor driving circuit to be tested can be utilized to drive the buzzer to make a sound; after the microphone is used for receiving the sound emitted by the buzzer, the analysis module judges whether the working state of the mainboard motor driving circuit to be tested is normal or not according to the sound recorded by the microphone, so that the effect of detecting the mainboard motor driving circuit is achieved. The test system of the method is simple in structure, low in cost, simple and convenient to operate, high in test accuracy and high in reliability.
Drawings
Fig. 1 is a block diagram of a motherboard motor driving circuit testing system according to the present invention.
Fig. 2 is a flowchart of a method for testing a motherboard motor driving circuit according to the present invention.
Detailed Description
In order to clearly understand the technical contents of the present invention, the following examples are given in detail.
Fig. 1 is a block diagram of a motherboard motor driving circuit testing system according to the present invention.
In one embodiment, the mainboard motor driving circuit testing system comprises a buzzer, a microphone and an analysis module. The system comprises a main board motor driving circuit, a buzzer, a main board motor driving circuit and a main board motor driving circuit, wherein the buzzer is connected with the main board motor driving circuit to be tested and used for driving the buzzer to make a sound when the main board motor driving circuit works; the microphone is used for receiving the sound emitted by the buzzer; the analysis module is connected with the microphone and used for judging the working state of the mainboard motor driving circuit to be tested according to the sound recorded by the microphone. The analysis module may be the main board itself analyzing the recorded sound.
The method for testing the motherboard motor driving circuit implemented by using the system of the embodiment, as shown in fig. 2, includes the following steps:
(1) the mainboard motor driving circuit to be tested drives a buzzer to make a sound;
(2) the microphone receives the sound emitted by the buzzer;
(3) and the analysis module judges the working state of the mainboard motor driving circuit to be tested according to the sound recorded by the microphone.
In a preferred embodiment, as shown in fig. 1, the buzzer and the microphone are disposed in a sound-shielding chamber.
In another preferred embodiment, the system further includes a control module, connected to the motherboard motor driving circuit to be tested, for controlling the operating state of the motherboard motor driving circuit according to a user operation. Specifically, the control module may be configured to enable an operator to send a test command after operating the ATA tool, drive the voltage of the main board motor driving circuit to drive the buzzer to sound, and then analyze and determine the sound recorded by the microphone.
In the method for testing a motherboard motor driving circuit implemented by the system according to the preferred embodiment, before the step (1), the method further includes the following steps:
(0) and the control module controls the main board motor driving circuit to be in a working state according to user operation.
In a further preferred embodiment, the control module is further connected to the analysis module, and is configured to control the analysis module to analyze the sound recorded by the microphone when the main board motor driving circuit operates.
In the method for testing a motherboard motor driving circuit implemented by the system according to the further preferred embodiment, the step (0) further includes: the control module controls the analysis module to analyze the sound recorded by the microphone when the main board motor driving circuit works.
In a more preferred embodiment, the analysis module includes a frequency analysis unit, an amplitude analysis unit, and a determination unit. The frequency analysis unit is used for analyzing the frequency of the sound recorded by the microphone; the amplitude analysis unit is used for analyzing the amplitude of the sound recorded by the microphone; and the judging unit is used for judging the working state of the mainboard motor driving circuit to be tested according to the analysis results of the frequency analysis unit and the amplitude analysis unit.
In the method for testing a motherboard motor driving circuit implemented by the system according to the more preferred embodiment, the step (3) specifically includes the following steps:
(31) the frequency analysis unit analyzes the frequency of the sound recorded by the microphone;
(32) the amplitude analysis unit analyzes the amplitude of the sound recorded by the microphone;
(33) and the judging unit judges the working state of the mainboard motor driving circuit to be tested according to the analysis results of the frequency analysis unit and the amplitude analysis unit.
The frequency analysis unit analyzes the frequency of the sound recorded by the microphone by adopting an FTT analysis method; the amplitude analysis unit analyzes the amplitude of the sound recorded by the microphone by adopting an FTT analysis method.
In practical applications, when a main board motor driving circuit of a mobile phone motor or other electronic products vibrates, a main board outputs a constant direct current (2.8V). At the moment, the voltage can drive the buzzer (the withstand voltage value of the selected buzzer is required to be higher than the output voltage of the main board) to generate sharp sound, and the mobile phone end opens the microphone in a software mode to record the sound generated by the buzzer. The recorded sound has a large difference in frequency and amplitude from the background noise of a workshop or other areas, and whether the motor is in a working state or not is judged by determining the frequency and amplitude range.
Specifically, firstly, the production jig requires that the buzzer is as close as possible to the main board or the auxiliary board of the mobile phone, the buzzer and the microphone are closely connected through the conduit or are simultaneously installed in a shielding cavity, and the sound emitted by the buzzer is better received by the microphone. Another purpose of the shielding is to isolate the environmental noise, so that the microphone recording is not affected by the environmental noise, and the recorded sound is better restored to reach the ideal frequency and amplitude.
After the mainboard is placed on the production jig, the power supply is supplied by the stabilized voltage power supply or the program control power supply, the ATA tool at the PC end sends a test instruction, and the mainboard enters an engineering mode to test the desired function. Such as: and adding a motor into the test item to test the vibration function of the main board.
The positive and negative electrodes of the pins of the main board motor are correspondingly connected with the positive and negative electrodes of the buzzer, the voltage for driving the motor to vibrate drives the buzzer to sound during testing, the sound emitting end of the buzzer is connected with the microphone of the auxiliary board through the guide pipe, and the sound of the buzzer is transmitted to the microphone as far as possible to record a sound source. And after the sound is recorded by the microphone, FFT analysis is carried out to obtain the required amplitude and frequency, and then the amplitude and frequency are displayed through the PC terminal. Because the sound cavity is internally provided with the sound cavity, the environment noise is isolated, and the result is not interfered.
By adopting the test system and the test method of the mainboard motor driving circuit, the system comprises the buzzer, the microphone and the analysis module, so that the mainboard motor driving circuit to be tested can be utilized to drive the buzzer to make a sound; after the microphone is used for receiving the sound emitted by the buzzer, the analysis module judges whether the working state of the mainboard motor driving circuit to be tested is normal or not according to the sound recorded by the microphone, so that the effect of detecting the mainboard motor driving circuit is achieved. The test system of the method is simple in structure, low in cost, simple and convenient to operate, high in test accuracy and high in reliability.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (6)
1. A motherboard motor driver circuit test system, comprising:
the buzzer is connected with the mainboard motor driving circuit to be tested and used for driving the buzzer to make a sound by the mainboard motor driving circuit when the mainboard motor driving circuit works;
the microphone is used for receiving the sound emitted by the buzzer;
the analysis module is connected with the microphone and used for judging the working state of the mainboard motor driving circuit to be tested according to the sound recorded by the microphone; and
the control module is connected with the mainboard motor driving circuit to be tested and used for controlling the working state of the mainboard motor driving circuit according to user operation, and the control module is also connected with the analysis module and used for controlling the analysis module to analyze the sound recorded by the microphone when the mainboard motor driving circuit works.
2. The system for testing motherboard motor driver circuits as recited in claim 1, wherein said buzzer and said microphone are disposed in a shielded acoustic chamber.
3. The motherboard motor drive circuit testing system of claim 1, wherein said analysis module comprises:
a frequency analysis unit for analyzing the frequency of the sound recorded by the microphone;
an amplitude analyzing unit for analyzing the amplitude of the sound recorded by the microphone; and
and the judging unit is used for judging the working state of the mainboard motor driving circuit to be tested according to the analysis results of the frequency analysis unit and the amplitude analysis unit.
4. A method for testing a mainboard motor driving circuit is characterized by comprising the following steps:
(0) the control module controls the main board motor driving circuit to be in a working state according to user operation;
(1) the mainboard motor driving circuit to be tested drives a buzzer to make a sound;
(2) the microphone receives the sound emitted by the buzzer;
(3) the analysis module judges the working state of the mainboard motor driving circuit to be tested according to the sound recorded by the microphone,
the step (0) further comprises:
the control module controls the analysis module to analyze the sound recorded by the microphone when the main board motor driving circuit works.
5. The motherboard motor drive circuit testing method of claim 4, wherein the analysis module comprises: the step (3) comprises the following steps:
(31) the frequency analysis unit analyzes the frequency of the sound recorded by the microphone;
(32) the amplitude analysis unit analyzes the amplitude of the sound recorded by the microphone;
(33) and the judging unit judges the working state of the mainboard motor driving circuit to be tested according to the analysis results of the frequency analysis unit and the amplitude analysis unit.
6. The motherboard motor driving circuit testing method as recited in claim 5, wherein said frequency analyzing unit analyzes the frequency of the sound recorded by said microphone by FTT analysis; the amplitude analysis unit analyzes the amplitude of the sound recorded by the microphone by adopting an FTT analysis method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510761753.9A CN106679794B (en) | 2015-11-10 | 2015-11-10 | System and method for testing mainboard motor driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510761753.9A CN106679794B (en) | 2015-11-10 | 2015-11-10 | System and method for testing mainboard motor driving circuit |
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| Publication Number | Publication Date |
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| CN106679794A CN106679794A (en) | 2017-05-17 |
| CN106679794B true CN106679794B (en) | 2020-11-27 |
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| CN201510761753.9A Expired - Fee Related CN106679794B (en) | 2015-11-10 | 2015-11-10 | System and method for testing mainboard motor driving circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108064347A (en) * | 2017-11-28 | 2018-05-22 | 福建联迪商用设备有限公司 | The audio pin test method and test device of communication module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101620005A (en) * | 2008-06-30 | 2010-01-06 | 鸿富锦精密工业（深圳）有限公司 | Mainboard sound test system and method therefor |
| CN104569788B (en) * | 2015-01-13 | 2018-03-30 | 宁波麦博韦尔移动电话有限公司 | A kind of mainboard audio loop test device and method of testing |
| CN104754094B (en) * | 2015-02-12 | 2018-01-23 | 广东欧珀移动通信有限公司 | Mobile terminal motor detecting method and system |
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