CN111131816A - Television board card digital audio signal detection device - Google Patents
Television board card digital audio signal detection device Download PDFInfo
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- CN111131816A CN111131816A CN202010099090.XA CN202010099090A CN111131816A CN 111131816 A CN111131816 A CN 111131816A CN 202010099090 A CN202010099090 A CN 202010099090A CN 111131816 A CN111131816 A CN 111131816A
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- 238000001514 detection method Methods 0.000 title claims abstract description 63
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 239000013307 optical fiber Substances 0.000 claims description 28
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers
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Abstract
The application is suitable for the technical field of television detection, and provides a television board card digital audio signal detection device which comprises a signal acquisition module, a decoding module, a conversion module and a control module; the signal acquisition module is used for acquiring digital audio signals output by the television board card and transmitting the digital audio signals to the decoding module; the decoding module converts the digital audio signal into a stereo digital audio signal according to the instruction of the control module and transmits the stereo digital audio signal to the conversion module; the conversion module is used for converting the stereo digital audio signal into an analog audio signal and transmitting the analog audio signal to the control module; the control module compares the analog audio signal with the standard signal, judges whether the digital audio signal output by the television board card is normal or not, completes automatic detection and analysis, has accurate detection result and improves the detection efficiency.
Description
Technical Field
The application belongs to the technical field of television detection, and particularly relates to a television board card digital audio signal detection device.
Background
Before leaving a factory, a board card digital Audio signal (including an optical fiber Audio output signal, a coaxial Audio output signal and an ARC (Audio Return Channel) Audio output signal) needs to be detected, and at present, the board card digital Audio signal is mainly detected by manually judging whether the board card digital Audio signal is normal or not by observing the waveform of an oscilloscope, so that the problems of misjudgment and low detection efficiency exist.
Disclosure of Invention
The embodiment of the application provides television board card digital audio signal detection equipment, which can solve the problems of misjudgment and low detection efficiency in manual detection.
The embodiment of the application provides a television board card digital audio signal detection device which comprises a signal acquisition module, a decoding module, a conversion module and a control module;
the signal acquisition module is used for acquiring digital audio signals output by the television board card and transmitting the digital audio signals to the decoding module; the decoding module converts the digital audio signal into a stereo digital audio signal according to the instruction of the control module and transmits the stereo digital audio signal to the conversion module; the conversion module is used for converting the stereo digital audio signal into an analog audio signal and transmitting the analog audio signal to the control module; and the control module compares the analog audio signal with a standard signal to determine a detection result.
In a possible implementation manner of the embodiment of the present application, the signal acquisition module includes an optical fiber signal receiving unit, a coaxial signal receiving unit, and an ARC signal receiving unit;
the optical fiber signal receiving unit is used for collecting an optical fiber audio output signal output by the television board card and transmitting the optical fiber audio output signal to the decoding module; the coaxial signal receiving unit is used for collecting a coaxial audio output signal output by the television board card and transmitting the coaxial audio output signal to the decoding module; the ARC signal receiving unit is used for collecting an ARC audio output signal output by the television board card and transmitting the ARC audio output signal to the decoding module.
In a possible implementation manner of the embodiment of the present application, the decoding module includes a digital audio decoding chip;
the digital audio decoding chip is used for converting the optical fiber audio output signal, the coaxial audio output signal or the ARC audio output signal into a corresponding stereo digital audio signal according to the instruction of the control module and transmitting the stereo digital audio signal to the conversion module.
In a possible implementation manner of the embodiment of the present application, the conversion module includes a signal conversion chip;
the signal conversion chip is used for converting the stereo digital audio signal output by the decoding module into an analog audio signal and transmitting the analog audio signal to the control module.
In a possible implementation manner of the embodiment of the present application, the control module includes a control chip;
the control chip is used for comparing the analog audio signal output by the conversion module with the standard signal to determine a detection result;
the control chip is also used for controlling the decoding module to convert the digital audio signal into a stereo digital audio signal.
In a possible implementation manner of the embodiment of the application, the television board card digital audio signal detection device further includes a display module;
the display module is used for displaying corresponding contents according to the instruction of the control module.
In a possible implementation manner of the embodiment of the application, the television board card digital audio signal detection device further includes an input module;
the input module is used for inputting set instructions to the control module.
In a possible implementation manner of the embodiment of the application, the television board card digital audio signal detection device further includes a storage module;
and the storage module is used for storing the detection result data according to the instruction of the control module.
In a possible implementation manner of the embodiment of the application, the television board card digital audio signal detection device further includes an alarm module;
and the alarm module is used for giving an alarm according to the instruction of the control module.
In a possible implementation manner of the embodiment of the application, the television board card digital audio signal detection device further includes a power module;
the power module is used for providing electric energy for the decoding module, the conversion module and the control module.
Compared with the prior art, the embodiment of the application has the advantages that:
the signal acquisition module in the embodiment of the application acquires digital audio signals output by a television board card and transmits the digital audio signals to the decoding module; the decoding module converts the digital audio signal into a stereo digital audio signal according to the instruction of the control module and transmits the stereo digital audio signal to the conversion module; the conversion module is used for converting the stereo digital audio signal into an analog audio signal and transmitting the analog audio signal to the control module; the control module compares the analog audio signal with the standard signal, judges whether the digital audio signal output by the television board card is normal or not, completes automatic detection and analysis, has accurate detection result and improves the detection efficiency.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic block diagram of a television board digital audio signal detection device according to an embodiment of the present application;
FIG. 2 is a schematic structural view of an optical fiber receptacle provided in an embodiment of the present application;
FIG. 3 is a circuit diagram of a decoding module according to an embodiment of the present application;
FIG. 4 is a circuit diagram of a conversion module according to an embodiment of the present application;
FIG. 5 is a schematic circuit diagram of a control module according to an embodiment of the present application;
fig. 6 is a circuit diagram of a power module according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to" determining "or" in response to detecting ". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between descriptions and not necessarily for describing or implying relative importance.
Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.
The board card digital audio signals (including optical fiber audio output signals, coaxial audio output signals and ARC audio output signals) need to be detected before the television leaves a factory, and currently, the board card digital audio signals are mainly detected by manually judging whether the board card digital audio signals are normal or not by observing the waveform of an oscilloscope, so that the problems of misjudgment and low detection efficiency exist.
Based on the above problem, the embodiment of the application discloses a television board card digital audio signal detection device, wherein a signal acquisition module acquires a digital audio signal output by a television board card and transmits the digital audio signal to a decoding module; the decoding module converts the digital audio signal into a stereo digital audio signal according to the instruction of the control module and transmits the stereo digital audio signal to the conversion module; the conversion module is used for converting the stereo digital audio signal into an analog audio signal and transmitting the analog audio signal to the control module; the control module compares the analog audio signal with the standard signal, judges whether the digital audio signal output by the television board card is normal or not, completes automatic detection and analysis, has accurate detection result and improves the detection efficiency.
In order to explain the technical solution described in the present application, the following description will be given by way of specific examples.
Fig. 1 shows a schematic block diagram of a television board digital audio signal detection device provided in an embodiment of the present application, where the television board digital audio signal detection device may include a signal acquisition module 100, a decoding module 200, a conversion module 300, and a control module 400.
Specifically, the signal acquisition module 100 is configured to acquire a digital audio signal output by a television board, and transmit the digital audio signal to the decoding module 200; the decoding module 200 converts the digital audio signal into a stereo digital audio signal according to the instruction of the control module 400, and transmits the stereo digital audio signal to the conversion module 300; the conversion module 300 is configured to convert the stereo digital audio signal into an analog audio signal, and transmit the analog audio signal to the control module 400; the control module 400 compares the analog audio signal with the standard signal, determines whether the digital audio signal output by the television board card is normal, completes automatic detection and analysis, has accurate detection result, and improves detection efficiency.
In an embodiment of the present application, the signal acquisition module 100 may include an optical fiber signal receiving unit, a coaxial signal receiving unit, and an ARC signal receiving unit, an input end of the optical fiber signal receiving unit, an input end of the coaxial signal receiving unit, and an input end of the ARC signal receiving unit are respectively connected to output ports corresponding to the television board, and an output end of the optical fiber signal receiving unit, an output end of the coaxial signal receiving unit, and an output end of the ARC signal receiving unit are respectively connected to input ports corresponding to the decoding module 200.
Specifically, the optical fiber signal receiving unit is configured to collect an optical fiber audio output signal output by the television board card, and transmit the optical fiber audio output signal to the decoding module 200; the coaxial signal receiving unit is used for collecting a coaxial audio output signal output by the television board card and transmitting the coaxial audio output signal to the decoding module 200; the ARC signal receiving unit is configured to collect an ARC audio output signal output by the television board, and transmit the ARC audio output signal to the decoding module 200.
For example, the Optical fiber signal receiving unit may adopt an Optical fiber receiving base (as shown IN fig. 2), an input end of the Optical fiber receiving base is connected to an output port corresponding to the television board, an output end (Optical _ IN end) of the Optical fiber receiving base is connected to one input end of the decoding module 200, and the Optical fiber receiving base may convert an Optical signal output by the television board into an electrical signal; the coaxial signal receiving unit can be a coaxial cable, one end of the coaxial cable is connected with the output port corresponding to the television board card, and the other end of the coaxial cable is connected with one input end of the decoding module 200; the ARC signal receiving unit may be an ARC dedicated transmission line, one end of the ARC dedicated transmission line is connected to the output port corresponding to the tv board, and the other end of the ARC dedicated transmission line is connected to one input end of the decoding module 200.
In one embodiment of the present application, the decoding module 200 may include a digital audio decoding chip.
Specifically, the digital audio decoding chip is configured to convert the optical fiber audio output signal, the coaxial audio output signal, or the ARC audio output signal into a corresponding stereo digital audio signal according to an instruction of the control module 400, and transmit the stereo digital audio signal to the conversion module 300.
Illustratively, the digital audio decoding chip may be a chip for MS8416 signals (as shown in U1 in fig. 3), an RXP2 port of the digital audio decoding chip is connected to an output terminal of the optical fiber signal receiving unit, an RXP0 port is connected to an output terminal of the coaxial signal receiving unit, an RXP1 port is connected to an output terminal of the ARC signal receiving unit, and the digital audio decoding chip is capable of converting the optical fiber audio output signal, the coaxial audio output signal and the ARC audio output signal into corresponding stereo digital audio signals. The digital audio decoding chip U1 (decoding module 200) receives the command from the control module 400 through the RXSEL1 port and the RXSEL0 port, and converts the fiber audio output signal, the coaxial audio output signal and the ARC audio output signal according to the command, and the logic relationship is as follows:
| RXSEL1 | RXSEL0 | |
| 0 | 0 | Conversion of fiber optic audio output signals to stereo |
| 0 | 1 | Conversion of coaxial audio output signals to stereo |
| 1 | 0 | Conversion of ARC audio output signals to stereo digital audio signals |
In one embodiment of the present application, the conversion module 300 may include a signal conversion chip.
Specifically, the signal conversion chip is configured to convert the stereo digital audio signal output by the decoding module 200 into an analog audio signal, and transmit the analog audio signal to the control module 400.
For example, the signal conversion chip may be MS4344 (as shown in U5 in fig. 4), the digital audio decoding chip U1 converts the optical fiber audio output signal, the coaxial audio output signal, and the ARC audio output signal into corresponding stereo digital audio signal signals, and outputs the stereo digital audio signal signals through different output ports (OLRCK port, OSCLK port, and RMCK port), the LRCK port, SCLK port, and MCLK port of the signal conversion chip U5 are correspondingly connected to the OLRCK port, OSCLK port, and RMCK port of the decoding chip U1, respectively, and the decoding chip U1 may convert the stereo digital audio signal into analog signals and output the analog signals to the control module 400 through the AOUTR port and AOUTL.
In one embodiment of the present application, the control module 400 may include a control chip.
Specifically, the control chip is configured to compare the analog audio signal output by the conversion module 300 with the standard signal, and determine a detection result; the control chip is further configured to control the decoding module 200 to convert the digital audio signal into a stereo digital audio signal.
For example, the control chip may be an MSD3686PTQ chip (as shown in U4 in fig. 5), the control chip U4 outputs control instructions to the RXSEL1 port and the RXSEL0 port of the digital audio decoding chip U1 through the GPIOA2 port and the GPIOA2 port, and controls the digital audio decoding chip U1 to parse signals. The control chip U4 receives the analog signal output by the decoding chip U1 through the LINEIN _ L4 port and the LINEIN _ R4, compares the analog signal with the standard signal, analyzes whether the signal is normal or not, and further completes automatic detection.
In an embodiment of the present application, the television board digital audio signal detection device may further include a power module.
Specifically, the power module is used to provide power for the decoding module 200, the converting module 300 and the control module 400.
Illustratively, the power module may include a 3.3V power supply (shown as U2 in fig. 6) for supplying power to the digital audio decoding chip U1 and the signal conversion chip U5. The power module may also include a 5V power supply (shown as U3 in fig. 6) to power the fiber receptacle.
In an embodiment of the present application, the television board digital audio signal detection device may further include a display module.
Specifically, the display module is connected to the control module 400, and the display module is configured to display corresponding content according to an instruction of the control module 400, for example, various data related to analog signal analysis may be displayed, which is convenient for an operator to view.
In an embodiment of the present application, the television board digital audio signal detection device may further include a storage module.
Specifically, the storage module is connected to the control module 400, and the storage module is configured to store the detection result data according to an instruction of the control module 400, for example, store analysis data of the digital audio signal of each television board card, so as to facilitate calculation of a yield.
In an embodiment of the application, the television board card digital audio signal detection device may further include an alarm module. .
Specifically, the alarm module is connected to the control module 400, and the alarm module is configured to alarm according to an instruction of the control module 400, for example, when the digital audio signal of the television board card is detected to be unqualified, the control module 400 controls the alarm module to alarm, and the alarm is processed by an operator.
In an embodiment of the present application, the television board digital audio signal detection device may further include an input module.
Specifically, the input module is connected to the control module 400, and the input module is configured to input a set instruction to the control module 400, so as to facilitate control of the detection device by an operator.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A television board card digital audio signal detection device is characterized by comprising a signal acquisition module, a decoding module, a conversion module and a control module;
the signal acquisition module is used for acquiring digital audio signals output by the television board card and transmitting the digital audio signals to the decoding module; the decoding module converts the digital audio signal into a stereo digital audio signal according to the instruction of the control module and transmits the stereo digital audio signal to the conversion module; the conversion module is used for converting the stereo digital audio signal into an analog audio signal and transmitting the analog audio signal to the control module; and the control module compares the analog audio signal with a standard signal to determine a detection result.
2. The television board card digital audio signal detection device of claim 1, wherein the signal acquisition module comprises an optical fiber signal receiving unit, a coaxial signal receiving unit and an ARC signal receiving unit;
the optical fiber signal receiving unit is used for collecting an optical fiber audio output signal output by the television board card and transmitting the optical fiber audio output signal to the decoding module; the coaxial signal receiving unit is used for collecting a coaxial audio output signal output by the television board card and transmitting the coaxial audio output signal to the decoding module; the ARC signal receiving unit is used for collecting an ARC audio output signal output by the television board card and transmitting the ARC audio output signal to the decoding module.
3. The television board digital audio signal detection device of claim 2, wherein the decoding module includes a digital audio decoding chip;
the digital audio decoding chip is used for converting the optical fiber audio output signal, the coaxial audio output signal or the ARC audio output signal into a corresponding stereo digital audio signal according to the instruction of the control module and transmitting the stereo digital audio signal to the conversion module.
4. The television board digital audio signal detection device of claim 1, wherein the conversion module includes a signal conversion chip;
the signal conversion chip is used for converting the stereo digital audio signal output by the decoding module into an analog audio signal and transmitting the analog audio signal to the control module.
5. The television board digital audio signal detection device of claim 1, wherein the control module includes a control chip;
the control chip is used for comparing the analog audio signal output by the conversion module with the standard signal to determine a detection result;
the control chip is also used for controlling the decoding module to convert the digital audio signal into a stereo digital audio signal.
6. The television board digital audio signal detection device of any one of claims 1 to 5, wherein the television board digital audio signal detection device further comprises a display module;
the display module is used for displaying corresponding contents according to the instruction of the control module.
7. The television board digital audio signal detection device of any one of claims 1 to 5, wherein the television board digital audio signal detection device further comprises an input module;
the input module is used for inputting set instructions to the control module.
8. The television board digital audio signal detection device of any one of claims 1 to 5, wherein the television board digital audio signal detection device further comprises a storage module;
and the storage module is used for storing the detection result data according to the instruction of the control module.
9. The television board digital audio signal detection device of any one of claims 1 to 5, wherein the television board digital audio signal detection device further comprises an alarm module;
and the alarm module is used for giving an alarm according to the instruction of the control module.
10. The television board digital audio signal detection device of any one of claims 1 to 5, wherein the television board digital audio signal detection device further comprises a power module;
the power module is used for providing electric energy for the decoding module, the conversion module and the control module.
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| CN202010099090.XA CN111131816A (en) | 2020-02-18 | 2020-02-18 | Television board card digital audio signal detection device |
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| CN202010099090.XA CN111131816A (en) | 2020-02-18 | 2020-02-18 | Television board card digital audio signal detection device |
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