Multi-stack signal frequency direct single-point superposition output method and device and computer equipment

Abstract

The invention relates to a multi-stack signal frequency direct single-point superposition output method, and the method comprises the steps: superposing audio signals of three different frequencies: high frequency, intermediate frequency and low frequency, and carrying out the single-point output of the superposed signals, and then carrying out the detection. Specifically, audio signals with three different frequencies are subjected to serial superposition, so that superposed signal single-point output is obtained. In this way, when audio signals are automatically tested by the output superposed signals, wire harnesses with different frequencies do not need to be replaced, meanwhile, corresponding tests do not need to be carried out by switching different frequencies, and the detection efficiency is improved. And meanwhile, when the superposed signal is detected, the automatic detection equipment can perform automatic frequency superposition sampling detection, so that the quantization error value of the cell is reduced, and the detection accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of audio signal processing, and in particular to a method and device for directly outputting multiple overlapping signal frequencies at a single point, and a computer device. Background Art

[0002] Audio signals with a wide range of frequencies have been widely used in various multimedia fields.

[0003] In the automated testing of industrial audio range applications, a one-to-one single-point detection signal frequency source is usually required. However, this method has the problem of connecting a single-point harness to detect different frequencies. When the automated test is performed, the corresponding frequency harness needs to be connected externally. At the same time, when automating the testing of audio signals of different frequencies, it is also necessary to switch to different frequencies for corresponding testing. At the same time, during the test process, the curve after converting the analog signal into a numerical signal has a quantization error value at a single sampling point. Summary of the invention

[0004] Based on this, it is necessary to provide a method for directly superimposing and outputting multiple overlapping signal frequencies at a single point.

[0005] The technical solution of the present invention to solve the above technical problem is as follows: a method for directly superimposing and outputting multiple overlapping signal frequencies at a single point, comprising:

[0006] The audio signals of three different frequencies, namely, high frequency, medium frequency and low frequency, are coupled to obtain a coupled signal;

[0007] Performing a first filtering on the coupled signal to obtain a first filtered signal;

[0008] Filtering the first filtered signal for a second time to obtain a second filtered signal;

[0009] The second filtered signal is amplified to obtain a superimposed signal.

[0010] In one embodiment, in the step of coupling the audio signals of three different frequencies, namely, high frequency, medium frequency and low frequency, to obtain a coupled signal,

[0011] The audio signals of three different frequencies, high frequency, medium frequency and low frequency, are coupled after passing through three input resistors respectively.

[0012] In one embodiment, in the step of filtering the coupled signal for the first time to obtain a first filtered signal,

[0013] The coupling signal is filtered by a filter capacitor to obtain a first filtered signal.

[0014] In one embodiment, in the step of filtering the first filtered signal for a second time to obtain a second filtered signal,

[0015] The first filtered signal is filtered for the second time through a register filter circuit to obtain a second filtered signal;

[0016] The parasitic filter circuit includes a parasitic filter capacitor and a first resistor to ground, the first end of the parasitic filter capacitor is connected to the first end of the first resistor to ground, the second end of the parasitic filter capacitor is connected to the second end of the first resistor to ground, and the second end of the first resistor to ground is grounded.

[0017] In one embodiment, in the step of performing signal amplification on the second filtered signal to obtain a superimposed signal,

[0018] The second filtered signal is passed through an operational amplifier to perform signal amplification.

[0019] In one embodiment, after the step of amplifying the second filtered signal,

[0020] After passing through the output circuit, the superposition signal is output to the automatic detection equipment, and the output superposition signal is detected in the automatic detection equipment.

[0021] In one embodiment, the output circuit includes an output bias resistor and a second ground resistor, the first end of the output bias resistor is the input end of the output circuit, the second end of the output bias resistor is connected to the first end of the second ground resistor, the second end of the second ground resistor is grounded, and the output end of the output circuit is extended from the connection between the output bias resistor and the second ground resistor.

[0022] A device for directly superimposing and outputting multiple overlapping signal frequencies at a single point, comprising:

[0023] An integration module is used to couple three audio signals of different frequencies, namely, high frequency, medium frequency and low frequency, to obtain a coupled signal;

[0024] A first filtering module, used for performing a first filtering on the coupling signal to obtain a first filtered signal;

[0025] A second filtering module, used for filtering the first filtered signal for a second time to obtain a second filtered signal;

[0026] The gain module is used to amplify the second filtered signal to obtain a superimposed signal.

[0027] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and wherein the processor implements the following steps when executing the computer program:

[0028] The audio signals of three different frequencies, namely, high frequency, medium frequency and low frequency, are coupled to obtain a coupled signal;

[0029] Performing a first filtering on the coupled signal to obtain a first filtered signal;

[0030] Filtering the first filtered signal for a second time to obtain a second filtered signal;

[0031] The second filtered signal is amplified to obtain a superimposed signal.

[0032] A computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the following steps are implemented:

[0033] The audio signals of three different frequencies, namely, high frequency, medium frequency and low frequency, are coupled to obtain a coupled signal;

[0034] Performing a first filtering on the coupled signal to obtain a first filtered signal;

[0035] Filtering the first filtered signal for a second time to obtain a second filtered signal;

[0036] The second filtered signal is amplified to obtain a superimposed signal.

[0037] The beneficial effect of the present invention is as follows: the present invention provides a method for directly superimposing and outputting multiple overlapping signal frequencies at a single point, and the method is performed by superimposing three audio signals of different frequencies, and then outputting the superimposed signal at a single point for detection. Specifically, the three audio signals of different frequencies are serially superimposed to obtain a single-point output of the superimposed signal. When the superimposed signal is automatically tested for the audio signal, there is no need to replace different frequency harnesses, and there is no need to switch different frequencies for corresponding tests, thereby improving the detection efficiency. At the same time, when detecting the superimposed signal, the automated detection equipment can automatically perform frequency superposition sampling detection, thereby reducing the zone quantization error value and improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 It is a flow chart of a method for directly superimposing and outputting multiple overlapping signal frequencies at a single point in one embodiment;

[0040] Figure 2 It is a schematic diagram of the flow of a device for directly superimposing and outputting multiple overlapping signal frequencies in one embodiment;

[0041] Figure 3 1 is a diagram of the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0042] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0043] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0045] The present invention is further described below with specific examples.

[0046] Embodiment 1

[0047] In this embodiment, if Figure 1 As shown, a method for directly superimposing and outputting multiple overlapping signal frequencies at a single point includes:

[0048] Step 110 , coupling audio signals of three different frequencies, namely, high frequency, medium frequency and low frequency, to obtain a coupled signal.

[0049] In one embodiment, in the step of coupling the audio signals of three different frequencies, high frequency, medium frequency and low frequency, to obtain the coupled signal, the audio signals of three different frequencies, high frequency, medium frequency and low frequency, are coupled after passing through three input resistors respectively. Specifically, the resistance values ​​of the three input resistors are all 1KΩ. By selecting three input resistors with a resistance value of 1KΩ, the high frequency signal, the medium frequency signal and the low frequency signal can be better integrated after passing through the three input resistors respectively, and the integrity and stability of the output integrated signal can be ensured.

[0050] Step 120: Perform a first filtering on the coupled signal to obtain a first filtered signal.

[0051] In one embodiment, in the step of filtering the coupled signal for the first time to obtain the first filtered signal, the coupled signal is filtered through a filter capacitor to obtain the first filtered signal. Specifically, the capacitance value of the filter capacitor is 100nF. By passing the coupled signal through the filter capacitor, the noise in the coupled signal is filtered out to purify the coupled signal, thereby obtaining the first filtered signal.

[0052] Step 130: filter the first filtered signal for a second time to obtain a second filtered signal.

[0053] In one embodiment, in the step of filtering the first filter signal for a second time to obtain a second filter signal, the first filter signal is filtered for a second time through a storage filter circuit to obtain a second filter signal; wherein the storage filter circuit includes a storage filter capacitor and a first ground resistor, the first end of the storage filter capacitor is connected to the first end of the first ground resistor, the second end of the storage filter capacitor is connected to the second end of the first ground resistor, and the second end of the first ground resistor is grounded. Specifically, the capacitance value of the storage filter capacitor is 1μF, and the resistance value of the first ground resistor is 10KΩ. By passing the first filter signal through the storage filter capacitor and the second ground resistor, the original ultra-high frequency first filter signal can be filtered twice to remove impurities and then refluxed and stored.

[0054] Step 140: amplify the second filtered signal to obtain a superimposed signal.

[0055] In one embodiment, in the step of amplifying the second filtered signal to obtain a superimposed signal, the second filtered signal is amplified by an operational amplifier. Specifically, a bias positive feedback resistor is provided between the operational amplifier and the register filter for connection, and the resistance of the bias positive feedback resistor is 15KΩ. By passing the second filtered signal through the operational amplifier, the gain amplification of the post-stage operational amplifier can be performed to obtain a superimposed signal. The bias positive feedback resistor is used for signal reflux sampling, and the second filtered signal that passes through the bias positive feedback resistor, the output superimposed signal can enter the operational amplifier again for signal gain.

[0056] Embodiment 2

[0057] In this embodiment, a method for directly superimposing and outputting multiple overlapping signal frequencies at a single point includes:

[0058] Step 1: Couple audio signals of three different frequencies, namely, high frequency, medium frequency and low frequency, to obtain a coupled signal.

[0059] Step 2: filtering the coupled signal for the first time to obtain a first filtered signal.

[0060] Step three: filter the first filtered signal for a second time to obtain a second filtered signal.

[0061] Step 4: amplify the second filtered signal to obtain a superimposed signal.

[0062] Step five: output the superposition signal to an automated testing device after passing through an output circuit, and test the output superposition signal in the automated testing device.

[0063] In one embodiment, the output circuit includes an output bias resistor and a second ground resistor, wherein the first end of the output bias resistor is the input end of the output circuit, the second end of the output bias resistor is connected to the first end of the second ground resistor, the second end of the second ground resistor is grounded, and the output end of the output circuit is extended from the connection between the output bias resistor and the second ground resistor. Specifically, the resistance of the output bias resistor is 5.68KΩ, and the resistance of the second ground resistor is 10KΩ. By connecting the output circuit to the output end of the operational amplifier, it is possible to effectively prevent the automated detection equipment from being energized and damaging the operational amplifier. The second ground resistor can effectively isolate the output end of the operational amplifier from the negative feedback input of the operational amplifier to prevent the generation of a self-excited signal.

[0064] Embodiment 3

[0065] In this embodiment, if Figure 2As shown, a device for directly superimposing and outputting multiple overlapping signal frequencies at a single point comprises:

[0066] The integration module 210 is used to couple the audio signals of three different frequencies, namely, high frequency, medium frequency and low frequency, to obtain a coupled signal;

[0067] A first filtering module 220, configured to perform a first filtering on the coupled signal to obtain a first filtered signal;

[0068] A second filtering module 230, configured to perform a second filtering on the first filtered signal to obtain a second filtered signal;

[0069] The gain module 240 is used to amplify the second filtered signal to obtain a superimposed signal.

[0070] In one embodiment, the integration module 210 includes: three input resistors. Specifically, the three input resistors are used to pass the high-frequency signal, the intermediate-frequency signal and the low-frequency signal respectively, and the high-frequency signal, the intermediate-frequency signal and the low-frequency signal after passing through the three input resistors are coupled to obtain a coupled signal.

[0071] In one embodiment, the first filtering module 220 includes: a filtering capacitor. Specifically, the filtering capacitor is used to filter the coupled signal to remove noise, thereby obtaining a first filtered signal.

[0072] In one embodiment, the second filtering module 230 includes: a register filter circuit. Specifically, the register filter circuit is used to perform secondary filtering on the first filter signal to obtain a second filter signal.

[0073] In one embodiment, the gain module 240 includes: an operational amplifier. Specifically, the operational amplifier is used to amplify the second filtered signal to obtain a superimposed signal.

[0074] Embodiment 4

[0075] In this embodiment, a computer device is provided. Its internal structure diagram can be shown as follows: Figure 3As shown. The computer device includes a processor, a memory, a network interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program, and the non-volatile storage medium is deployed with a database, which is used to store information data, processing data, feature data and prediction results. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The network interface of the computer device is used to communicate with other computer devices deployed with application software. When the computer program is executed by the processor, a method for processing data of goods entering and leaving the warehouse is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a key, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

[0076] Those skilled in the art will understand that Figure 3 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0077] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and wherein the processor implements the following steps when executing the computer program:

[0078] The audio signals of three different frequencies, namely, high frequency, medium frequency and low frequency, are coupled to obtain a coupled signal;

[0079] Performing a first filtering on the coupled signal to obtain a first filtered signal;

[0080] Filtering the first filtered signal for a second time to obtain a second filtered signal;

[0081] The second filtered signal is amplified to obtain a superimposed signal.

[0082] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0083] In the step of coupling the audio signals of three different frequencies, namely, high frequency, medium frequency and low frequency, to obtain a coupled signal, the audio signals of three different frequencies, namely, high frequency, medium frequency and low frequency, are coupled after passing through three input resistors respectively.

[0084] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0085] In the step of performing a first filtering on the coupled signal to obtain a first filtered signal, the coupled signal is filtered through a filtering capacitor to obtain the first filtered signal.

[0086] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0087] In the step of filtering the first filtered signal for a second time to obtain a second filtered signal, the first filtered signal is filtered for a second time through a parasitic filter circuit to obtain a second filtered signal; wherein the parasitic filter circuit includes a parasitic filter capacitor and a first resistor to ground, a first end of the parasitic filter capacitor is connected to a first end of the first resistor to ground, a second end of the parasitic filter capacitor is connected to a second end of the first resistor to ground, and the second end of the first resistor to ground is grounded.

[0088] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0089] In the step of amplifying the second filtered signal to obtain a superimposed signal, the second filtered signal is amplified by an operational amplifier.

[0090] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0091] After the step of amplifying the signal gain of the second filtered signal, the superimposed signal is output to the automated detection equipment after passing through the output circuit, and the output superimposed signal is detected in the automated detection equipment.

[0092] Embodiment 5

[0093] In this embodiment, a computer-readable storage medium stores a computer program, wherein when the computer program is executed by a processor, the following steps are implemented:

[0094] The audio signals of three different frequencies, namely, high frequency, medium frequency and low frequency, are coupled to obtain a coupled signal;

[0095] Performing a first filtering on the coupled signal to obtain a first filtered signal;

[0096] Filtering the first filtered signal for a second time to obtain a second filtered signal;

[0097] The second filtered signal is amplified to obtain a superimposed signal.

[0098] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0099] In the step of coupling the audio signals of three different frequencies, namely, high frequency, medium frequency and low frequency, to obtain a coupled signal, the audio signals of three different frequencies, namely, high frequency, medium frequency and low frequency, are coupled after passing through three input resistors respectively.

[0100] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0101] In the step of performing a first filtering on the coupled signal to obtain a first filtered signal, the coupled signal is filtered through a filtering capacitor to obtain the first filtered signal.

[0102] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0103] In the step of filtering the first filtered signal for a second time to obtain a second filtered signal, the first filtered signal is filtered for a second time through a parasitic filter circuit to obtain a second filtered signal; wherein the parasitic filter circuit includes a parasitic filter capacitor and a first resistor to ground, a first end of the parasitic filter capacitor is connected to a first end of the first resistor to ground, a second end of the parasitic filter capacitor is connected to a second end of the first resistor to ground, and the second end of the first resistor to ground is grounded.

[0104] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0105] In the step of amplifying the second filtered signal to obtain a superimposed signal, the second filtered signal is amplified by an operational amplifier.

[0106] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0107] After the step of amplifying the signal gain of the second filtered signal, the superimposed signal is output to the automated detection equipment after passing through the output circuit, and the output superimposed signal is detected in the automated detection equipment.

[0108] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0109] The above-mentioned embodiments only express several embodiments of the present application, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of this application shall be based on the attached claims.

Claims

1. A method for directly superimposing and outputting multiple overlapping signal frequencies at a single point, characterized in that: include: Perform signal coupling on three audio signals of different frequencies, namely, high frequency, medium frequency and low frequency, to obtain a coupling signal; Performing a first filtering on the coupled signal to obtain a first filtered signal; Filtering the first filtered signal for a second time to obtain a second filtered signal; The second filtered signal is amplified to obtain a superimposed signal.

2. The method according to claim 1, characterized in that: In the step of coupling the audio signals of three different frequencies, namely, high frequency, medium frequency and low frequency, to obtain a coupled signal, The audio signals of three different frequencies, high frequency, medium frequency and low frequency, are coupled after passing through three input resistors respectively.

3. The method according to claim 1, characterized in that In the step of filtering the coupled signal for the first time to obtain a first filtered signal, The coupling signal is filtered by a filter capacitor to obtain a first filtered signal.

4. The method according to claim 1, characterized in that In the step of filtering the first filtered signal for a second time to obtain a second filtered signal, The first filtered signal is filtered for the second time through a register filter circuit to obtain a second filtered signal; The parasitic filter circuit includes a parasitic filter capacitor and a first resistor to ground, the first end of the parasitic filter capacitor is connected to the first end of the first resistor to ground, the second end of the parasitic filter capacitor is connected to the second end of the first resistor to ground, and the second end of the first resistor to ground is grounded.

5. The method according to claim 1, characterized in that: In the step of performing signal amplification gain on the second filtered signal to obtain a superimposed signal, The second filtered signal is passed through an operational amplifier to perform signal amplification.

6. The method according to claim 1, characterized in that After the step of amplifying the signal gain of the second filtered signal, After passing through the output circuit, the superposition signal is output to the automatic detection equipment, and the output superposition signal is detected in the automatic detection equipment.

7. The method according to claim 6, characterized in that The output circuit includes an output bias resistor and a second ground resistor, wherein the first end of the output bias resistor is the input end of the output circuit, the second end of the output bias resistor is connected to the first end of the second ground resistor, the second end of the second ground resistor is grounded, and the output end of the output circuit is extended from the connection between the output bias resistor and the second ground resistor.

8. A device for directly superimposing and outputting multiple overlapping signal frequencies at a single point, characterized in that: include: An integration module is used to couple three audio signals of different frequencies, namely, high frequency, medium frequency and low frequency, to obtain a coupled signal; A first filtering module, used for performing a first filtering on the coupled signal to obtain a first filtered signal; A second filtering module, used for filtering the first filtered signal for a second time to obtain a second filtered signal; The gain module is used to amplify the second filtered signal to obtain a superimposed signal.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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