CN112261405A - Reverse automatic test system for left and right loudspeakers of television/display - Google Patents
Reverse automatic test system for left and right loudspeakers of television/display Download PDFInfo
- Publication number
- CN112261405A CN112261405A CN202011389064.7A CN202011389064A CN112261405A CN 112261405 A CN112261405 A CN 112261405A CN 202011389064 A CN202011389064 A CN 202011389064A CN 112261405 A CN112261405 A CN 112261405A
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- loudspeaker
- sound
- microphone
- display
- display device
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- 238000012360 testing method Methods 0.000 title claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N2017/006—Diagnosis, testing or measuring for television systems or their details for television sound
Abstract
The invention discloses a reverse automatic test system for left and right horns of a television/display, which at least comprises the following equipment: a signal source: for generating a picture and a monophonic sound; a display device: playing positive sound wave sound through a loudspeaker; a microphone: the loudspeaker is used for collecting the sound of the loudspeaker; a computer: controlling the frequency of sound generated by a signal source through software, switching on and off left and right sound channels, performing sound frequency filtering, and calculating whether the left and right directions of a loudspeaker are reversed or not; wherein: the number of the loudspeakers is two, and microphones are arranged beside each loudspeaker. The invention skillfully adopts the mode that the left loudspeaker and the right loudspeaker are respectively provided with 1 microphone to collect the sound production of one loudspeaker, and then judges the position of the loudspeaker by comparing the volume of the microphones, thereby avoiding a plurality of defects caused by manual judgment and having high practicability.
Description
Technical Field
The invention relates to the technical field of television/display processing, in particular to a reverse automatic test system for left and right loudspeakers of a television/display.
Background
The left loudspeaker and the right loudspeaker of a television or a display are plugged in a circuit main board through connecting wires, but because the wires are often wrong, the left loudspeaker can be inserted into a right interface, the right loudspeaker is inserted into a left interface, and 2 methods are adopted for the left loudspeaker and the right loudspeaker in the prior art: one is that the operator listens with ears; the other method is to adopt an amplitude-frequency curve to test the volume of the left loudspeaker and the right loudspeaker under the environment of a mute room.
However, the method 1 is a manual test, and is easy to fatigue and misjudge by a person in a production environment of a television; the method 2 needs a professional mute room, has very high manufacturing cost and underground efficiency, and the machine flows into a closed mute room space when the production line is in production, the isolation door is closed to test, the test needs to be opened, and the method cannot be realized on 1 production line with the production efficiency of 10S.
Disclosure of Invention
The present invention is directed to a system for automatically testing left and right speakers of a tv/monitor in a reverse direction, so as to solve the above problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a reverse automatic test system for left and right horns of a television/display at least comprises the following equipment:
a signal source: for generating a picture and a monophonic sound;
a display device: playing positive sound wave sound through a loudspeaker;
a microphone: the loudspeaker is used for collecting the sound of the loudspeaker;
a computer: controlling the frequency of sound generated by a signal source through software, switching on and off left and right sound channels, performing sound frequency filtering, and calculating whether the left and right directions of a loudspeaker are reversed or not;
wherein:
the number of the loudspeakers is two, and microphones are arranged beside each loudspeaker.
As a further scheme of the invention: the display device is a television or a display.
As a further scheme of the invention: the monaural sound includes a left monaural positive-pitch tone and a right monaural positive-pitch tone.
As a further scheme of the invention: the left microphone is located near the left horn of the display device and the right microphone is located near the right horn of the display device.
As a further scheme of the invention: and the computer is provided with a band-pass filter.
Compared with the prior art, the invention has the beneficial effects that:
1) through the scheme, the method skillfully adopts the mode that the left loudspeaker and the right loudspeaker are respectively provided with 1 microphone to collect the sound production of one loudspeaker, and then judges the position of the loudspeaker by comparing the volume of the microphones, thereby avoiding a plurality of defects caused by manual judgment and having high practicability.
2) The scheme is efficient, the test can be completed in 2s after the flow-in, and the efficiency is high.
3) The scheme is simple, does not need to be modified by a production line, and is low in cost.
4) The band-pass filter is arranged, so that the left and right loudspeaker reverse test can be performed in a noisy environment, the influence of the environment on the judgment accuracy is avoided, and the reliability is high.
Drawings
Fig. 1 is a schematic view of a working process of a reverse automatic testing system for left and right speakers of a television/monitor.
Fig. 2 is a schematic view of the working process of the microphone of the present invention.
The reference numerals in the figures have the following meanings:
1. a signal source; 2. a display device; 3. a microphone; 4. a computer; 21. a horn.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and fig. 2, in an embodiment of the present invention, an automatic reverse testing system for left and right speakers of a television/monitor at least includes the following devices:
signal source 1: the method comprises the steps of generating a picture and a monaural sound, wherein the monaural sound comprises a left monaural positive-pitch-wave monaural and a right monaural positive-pitch-wave monaural;
the display device 2: playing the positive sound wave sound through a loudspeaker 21;
the microphone 3: for picking up the sound of the horn 21;
and 4, the computer: controlling the frequency of sound generated by a signal source through software, switching on and off left and right sound channels, performing sound frequency filtering, and calculating whether the left and right directions of a loudspeaker are reversed or not;
wherein:
the number of loudspeakers 21 is two and a microphone 3 is placed next to each loudspeaker 21, in particular the microphone 3 on the left is located close to the loudspeaker 21 on the left of the display device 2 and the microphone 3 on the right is located close to the loudspeaker 21 on the right of the display device 2.
As a preferable mode of the above, the display device 2 in the present embodiment is a television or a monitor.
In order to avoid the influence of external noisy environment on the invention, the computer 4 is provided with a band-pass filter, thereby avoiding the influence of environment on the judgment accuracy and enhancing the reliability of the invention.
The specific implementation method of the invention is as follows:
the computer 4 sends a command to the signal source 1, when the signal source 1 only sends out a left channel signal positive sine wave (1 khz), the display device 2 only has sound from the left speaker 21, at this time, the left microphone 3 is close to the left speaker 21, and the right microphone 3 is close to the right speaker 21, when the left speaker 21 is correctly installed and produces sound, because the left microphone 3 is close to the left speaker 21 to produce sound, and the right microphone 3 is far from the left speaker 21, the volume LV of the left microphone 3 is greater than the volume RV of the right microphone 3, that is, if the left and right speakers 21 are reversed, LV < RV > RV., it is determined that the speakers 21 are reversed left and right;
the computer 4 sends a command to the signal source 1, when the signal source 1 only sends out a right channel signal positive sine wave (3 khz), the display device 2 only has sound from the right loudspeaker 21, at this time, the left microphone 3 is close to the left loudspeaker 21, the right microphone 3 is close to the right loudspeaker 21, when the right loudspeaker 21 is correctly positioned to produce sound, because the right microphone 3 is close to the right loudspeaker 21 to produce sound, and the left microphone 3 is farther from the right loudspeaker 21, the volume RV of the right microphone 3 is larger than the volume LV of the left microphone 3, that is, LV < RV. otherwise, if the left loudspeaker 21 and the right loudspeaker 21 are reversed, LV > RV, it is determined that the left loudspeaker 21 is reversed.
In combination with the above situation, the invention skillfully adopts the mode that 1 microphone 3 is respectively placed on the loudspeakers 21 positioned on the left side and the right side to collect the sound production of one loudspeaker 21, and then judges the position of the loudspeaker 21 by comparing the volume of the microphone 3, thereby avoiding a plurality of defects caused by manual judgment and having high practicability.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a reverse automatic test system of loudspeaker about TV set display which characterized in that: the device at least comprises the following devices:
signal source (1): for generating a picture and a monophonic sound;
display device (2): the positive sound wave sound is played through a loudspeaker (21);
microphone (3): the loudspeaker is used for collecting the sound of the loudspeaker (21);
computer (4): controlling the frequency of sound generated by a signal source through software, switching on and off left and right sound channels, performing sound frequency filtering, and calculating whether the left and right directions of a loudspeaker are reversed or not;
wherein:
the number of the loudspeakers (21) is two, and microphones (3) are arranged beside each loudspeaker (21).
2. The system of claim 1, wherein the system comprises: the display device (2) is a television or a display.
3. The system of claim 1, wherein the system comprises: the monaural sound includes a left monaural positive-pitch tone and a right monaural positive-pitch tone.
4. The system of claim 2, wherein the system comprises: the microphone (3) located on the left is close to the loudspeaker (21) on the left of the display device (2) and the microphone (3) located on the right is close to the loudspeaker (21) on the right of the display device (2).
5. The system of claim 1, wherein the system comprises: and a band-pass filter is arranged on the computer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011389064.7A CN112261405A (en) | 2020-12-02 | 2020-12-02 | Reverse automatic test system for left and right loudspeakers of television/display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011389064.7A CN112261405A (en) | 2020-12-02 | 2020-12-02 | Reverse automatic test system for left and right loudspeakers of television/display |
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| Publication Number | Publication Date |
|---|---|
| CN112261405A true CN112261405A (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011389064.7A Pending CN112261405A (en) | 2020-12-02 | 2020-12-02 | Reverse automatic test system for left and right loudspeakers of television/display |
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| Country | Link |
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| CN (1) | CN112261405A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022160918A1 (en) * | 2021-02-01 | 2022-08-04 | 海信视像科技股份有限公司 | Display apparatus and multi-channel audio device system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201616906U (en) * | 2009-06-19 | 2010-10-27 | 中山市天键电子工业有限公司 | Polarity test device for loudspeakers |
| CN102014333A (en) * | 2009-09-04 | 2011-04-13 | 鸿富锦精密工业（深圳）有限公司 | Test method for sound system of computer |
| CN206533546U (en) * | 2016-12-01 | 2017-09-29 | 广州视源电子科技股份有限公司 | Loudspeaker test system |
-
2020
- 2020-12-02 CN CN202011389064.7A patent/CN112261405A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201616906U (en) * | 2009-06-19 | 2010-10-27 | 中山市天键电子工业有限公司 | Polarity test device for loudspeakers |
| CN102014333A (en) * | 2009-09-04 | 2011-04-13 | 鸿富锦精密工业（深圳）有限公司 | Test method for sound system of computer |
| CN206533546U (en) * | 2016-12-01 | 2017-09-29 | 广州视源电子科技股份有限公司 | Loudspeaker test system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022160918A1 (en) * | 2021-02-01 | 2022-08-04 | 海信视像科技股份有限公司 | Display apparatus and multi-channel audio device system |
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Application publication date: 20210122 |