CN218162860U

CN218162860U - Digital microphone decoding board and microphone testing system

Info

Publication number: CN218162860U
Application number: CN202221459588.3U
Authority: CN
Inventors: 来翔
Original assignee: Nanjing Shengzhiyuan Electronic Technology Co ltd
Current assignee: Nanjing Shengzhiyuan Electronic Technology Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-12-27
Anticipated expiration: 2032-06-10

Abstract

The utility model discloses a digital microphone decodes deck and microphone test system relates to microphone technical field, its technical essential: the decoding board comprises a decoding board body, wherein the decoding board body comprises a field programmable gate array for processing signals, the field programmable gate array is provided with an audio output module through a function generator, the field programmable gate array is connected with a regulating circuit through an analog-to-digital conversion module, the field programmable gate array is connected with a voltage module for supplying power and regulating voltage, the field programmable gate array is connected with a current module for detecting current, the field programmable gate array is connected with a signal testing module for testing decoding effect, and the signal testing module and the current module are connected with an indicating module through a single chip microcomputer; the utility model discloses can comparatively show microphone test result fast and directly perceivedly.

Description

Digital microphone decoding board and microphone testing system

Technical Field

The utility model belongs to the technical field of the microphone technique and specifically relates to a digital microphone decodes deck and microphone test system is related to.

Background

In the electronic industry, a decoding board is a very important electronic component, and the decoding board is a device which can output a switching value signal during operation and is commonly used for system integration.

In recent years, with the development of science and technology and the improvement of the living standard of people, microphones have been improved from a wired type to a wireless type, and users have made higher and higher demands on the functions of the microphones.

The existing microphone decoding board with the application number of CN201921866979.5 overcomes the problem that the function of the microphone decoding board in the prior art is single, and can meet higher use requirements of users; however, this technique cannot display the test result quickly and intuitively, and is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a digital microphone decodes flitch and microphone test system can comparatively show microphone test result fast and directly perceivedly.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a digital microphone decodes deck and microphone test system, includes and decodes the deck body, it includes the field programmable gate array who handles the signal to decode the deck body, the field programmable gate array is equipped with audio output module through function generator, the field programmable gate array is connected with regulating circuit through analog-to-digital conversion module, the field programmable gate array is connected with the voltage module that is used for power supply and voltage regulation, the field programmable gate array is connected with the current module that is used for measuring current, the field programmable gate array is connected with the signal test module that is used for testing decoding effect, the signal test module is connected with instruction module through the singlechip with the current module.

By adopting the mode, a Field Programmable Gate Array (FPGA) is selected as a center for data information processing, the decoding board body can receive analog signals from various types of microphones, such as analog ECM signals, analog single-ended signals, analog differential signals, analog VOUT input signals and the like, the signals are adjusted by the adjusting circuit and then are transmitted to the analog-to-digital conversion module, the signals are converted into digital heart signals and then are transmitted to the field programmable gate array for processing, the processed signals are adjusted by the function generator and finally are output by the audio output module; when the current module detects that the current is abnormal, a signal is sent to the indicating module through the single chip microcomputer, and the indicating module displays correspondingly; when the signal testing module detects that the signal is abnormal, the signal testing module sends the signal to the indicating module through the single chip microcomputer, and the indicating module displays correspondingly; the utility model discloses can comparatively show microphone test result fast and directly perceivedly.

Preferably, the indicating module comprises a relay, and the relay is connected with a plurality of indicating lamps for displaying the test structure.

Preferably, the number of the indicator lights is four, and the indicator lights are set as a current normal light, a current abnormal light, a decoding normal light and a decoding abnormal light respectively.

Preferably, the field programmable gate array is connected with a bluetooth module for connecting bluetooth equipment.

Preferably, the field programmable gate array is connected with a network module for wireless network connection.

Preferably, the adjusting circuit includes a filter circuit and an amplifying circuit.

The utility model discloses following beneficial effect has:

the method comprises the following steps that a Field Programmable Gate Array (FPGA) is selected as a center for data information processing, a decoding board body can receive analog signals from various microphones, such as analog ECM signals, analog single-ended signals, analog differential signals, analog VOUT input signals and the like, a regulating circuit regulates the signals and then transmits the signals to an analog-to-digital conversion module, the signals are converted into digital heart signals to be sent to the field programmable gate array for processing, the processed signals are regulated through a function generator and finally output through an audio output module; when the current module detects that the current is abnormal, a signal is sent to the indicating module through the single chip microcomputer, and the indicating module displays correspondingly; when the signal testing module detects that the signal is abnormal, the signal testing module sends a signal to the indicating module through the single chip microcomputer, and the indicating module displays correspondingly; the utility model discloses can comparatively show microphone test result fast and directly perceivedly.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the figure: 1. the decoding board body; 2. a field programmable gate array; 3. a function generator; 4. an audio output module; 5. an analog-to-digital conversion module; 6. a regulating circuit; 7. a voltage module; 8. a current module; 9. a signal testing module; 10. a single chip microcomputer; 111. a relay; 112. an indicator light; 12. a Bluetooth module; 13. and a network module.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

A digital microphone decoding board and a microphone testing system are disclosed, as shown in figure 1, the digital microphone decoding board comprises a decoding board body 1, the decoding board body 1 comprises a field programmable gate array 2 for processing signals, the field programmable gate array 2 is provided with an audio output module 4 through a function generator 3, the field programmable gate array 2 is connected with a regulating circuit 6 through an analog-to-digital conversion module 5, the field programmable gate array 2 is connected with a voltage module 7 for supplying power and regulating voltage, the field programmable gate array 2 is connected with a current module 8 for detecting current, the field programmable gate array 2 is connected with a signal testing module 9 for testing decoding effect, and the signal testing module 9 and the current module 8 are connected with an indicating module through a single chip microcomputer 10.

As shown in fig. 1, a Field Programmable Gate Array (FPGA) is used as a center of data information processing, a decoding board body 1 can receive analog signals from various microphones, such as analog ECM signals, analog single-ended signals, analog differential signals, analog VOUT input signals, etc., a regulating circuit 6 regulates the signals, transmits the signals to an analog-to-digital conversion module 5, converts the signals into digital core signals, sends the digital core signals to the field programmable gate array 2 for processing, and the processed signals are regulated by a function generator 3 and finally output by an audio output module 4; when the current module 8 detects that the current is abnormal, a signal is sent to the indicating module through the single chip microcomputer 10, and the indicating module displays correspondingly; when the signal testing module 9 detects that the signal is abnormal, the signal testing module sends a signal to the indicating module through the single chip microcomputer 10, and the indicating module displays correspondingly; the utility model discloses can comparatively show microphone test result fast and directly perceivedly.

As shown in fig. 1, the indicating module includes a relay 111, and the relay 111 is connected with a plurality of indicating lamps 112 for displaying the test structure; the indicator light 112 corresponding to the detection result is lighted, and is visual and clear.

As shown in fig. 1, the number of the indicator lights 112 is four and is set as a current normal light, a current abnormal light, a decoding normal light and a decoding abnormal light, respectively; the current state of the microphone and the decoded signal state can be visually judged, and the microphone is convenient to use.

As shown in fig. 1, the field programmable gate array 2 is connected to a bluetooth module 12 for connecting to a bluetooth device, and can be wirelessly connected to an external bluetooth device to transmit signals.

As shown in fig. 1, the field programmable gate array 2 is connected with a network module 13 for wireless network connection; and can also be wirelessly connected with external devices through a network.

As shown in fig. 1, the adjusting circuit 6 includes a filter circuit and an amplifying circuit; the filter circuit carries out filtering processing on the received analog signals, and the amplifying circuit carries out amplifying processing on the received analog signals, so that the detection accuracy is improved.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are all covered in the protection scope of the present invention.

Claims

1. A digital microphone decoding board and a microphone testing system are characterized in that: including decoding the board body (1), decoding the board body (1) including the field programmable gate array (2) of handling signal, field programmable gate array (2) are equipped with audio output module (4) through function generator (3), field programmable gate array (2) are connected with regulating circuit (6) through analog-to-digital conversion module (5), field programmable gate array (2) are connected with voltage module (7) that are used for power supply and voltage regulation, field programmable gate array (2) are connected with current module (8) that are used for measuring current, field programmable gate array (2) are connected with signal test module (9) that are used for testing decoding effect, signal test module (9) are connected with indication module through singlechip (10) with current module (8).

2. The digital microphone decoder board and microphone testing system of claim 1, wherein: the indicating module comprises a relay (111), and the relay (111) is connected with a plurality of indicating lamps (112) for displaying the test structure.

3. The digital microphone decoder board and microphone testing system of claim 2, wherein: the number of the indicator lights (112) is four, and the indicator lights are respectively set as a current normal light, a current abnormal light, a decoding normal light and a decoding abnormal light.

4. The digital microphone decoder board and microphone testing system of claim 1, wherein: the field programmable gate array (2) is connected with a Bluetooth module (12) used for connecting Bluetooth equipment.

5. The digital microphone decoder board and microphone testing system of claim 1, wherein: the field programmable gate array (2) is connected with a network module (13) for wireless network connection.

6. The digital microphone decoder board and microphone testing system of claim 1, wherein: the adjusting circuit (6) comprises a filter circuit and an amplifying circuit.