Recording and playing voice broadcast data line

Abstract

The utility model discloses a recording and playing voice broadcast data line, which comprises a power supply interface, an MCU (Microprogrammed Control Unit) module, a voice circuit module, a loudspeaker, a microphone circuit module and a voltage transformation circuit module, and is characterized in that the power supply interface is connected with a charger connected with the data line; a power supply pin of the power interface is connected with an input end of the voltage transformation circuit module, an output end of the voltage transformation circuit module is connected with the MCU module and the voice circuit module and is used for supplying power to the MCU module and the voice circuit module, and the loudspeaker is connected with an audio output end of the voice circuit module and is used for supplying power to the MCU module and the voice circuit module. The microphone circuit module is connected with an audio acquisition end of the voice circuit module, the voice circuit module is connected with the MCU module, and a signal transmission pin of the power interface is connected with a signal transmission pin on the MCU module. According to the utility model, corresponding broadcast information is made according to the state of the data line; therefore, the use state of the data line is reflected.

Description

Technical Field

[0001] The utility model relates to the technical field of data lines, in particular to a data line for recording and playing voice broadcasts. Background Art

[0002] With the rapid development of the electronics industry, many people use mobile phones, MP3s, tablet computers, and other mobile electronic devices; these electronic devices often need to be charged and transmit data through data cables. Currently, there are many kinds of data cables and transformer charging heads on the market. When charging devices, many people use existing data cables that cannot provide prompts based on the usage status of the data cables, such as power-on detection, mobile phone insertion detection, charging detection, full power detection, and mobile phone removal detection, while users do not know the usage status of the data cables. Therefore, we have made improvements to this and proposed a data cable for recording and playing voice announcements. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0004] The utility model discloses a data line for recording and playing voice announcement, comprising a power interface, an MCU module, a voice circuit module, a loud speaker, a microphone circuit module and a transformer circuit module, wherein the power interface is connected to a charger connected to the data line; a power supply pin of the power interface is connected to an input end of the transformer circuit module, an output end of the transformer circuit module is connected to the MCU module and the voice circuit module, and is used to supply power to the MCU module and the voice circuit module, the loud speaker is connected to an audio output end of the voice circuit module, the microphone circuit module is connected to an audio collection end of the voice circuit module, the voice circuit module is connected to the MCU module, and a signal transmission pin of the power interface is connected to a signal transmission pin on the MCU module.

[0005] As a preferred technical solution of the utility model, it also includes a key recording circuit module connected to the MCU module, and the key recording circuit module is used to control the microphone circuit module to record.

[0006] As a preferred technical solution of the utility model, the microphone circuit module includes an electret microphone MK1; capacitors C1, C2, C3 and C4; resistors R1 and R2

[0007] One end of the capacitor C1, one end of C2 and one end of C3 are grounded, and the other end of the capacitor C3 is connected to one end of the resistor R1 and the OUT output end of the voice circuit module; the other end of the resistor R1 is connected to the other end of the capacitor C1, the other end of C2 and one end of the resistor R2, and the other end of the resistor R2 is connected to one end of the capacitor C4 and the electret microphone MK1;

[0008] The other end of the capacitor C4 is connected to the Mic pin on the voice circuit module.

[0009] As a preferred technical solution of the present utility model, the resistance value of the resistor R1 is 6.8 kΩ; the resistance value of the resistor R2 is 2.2 kΩ.

[0010] As a preferred technical solution of the utility model, it also includes a first program burning interface P1 connected to the MCU module, and the first program burning interface P1 is used to upgrade the processing chip in the MCU module.

[0011] As a preferred technical solution of the utility model, it also includes a second program burning interface P2 connected to the voice circuit module, and the second program burning interface P2 is used to upgrade the voice chip in the voice circuit module.

[0012] As a preferred technical solution of the present utility model, the power interface 1 is one of a USB power interface, a lightning interface, a type-c interface and a micro interface.

[0013] The beneficial effects of the utility model are:

[0014] This type of voice recording and playback voice broadcast data line can record different audio information through the relevant control of the microphone circuit module and the key recording circuit module, and automatically save the collected user audio information to the internal Flash of the voice circuit module, wherein corresponding broadcast information is made according to the state of the data line; to reflect the usage status of the data line, wherein the signal transmission pin of the power interface is connected to the signal transmission pin on the MCU module, so that signals are exchanged between the power interface and the MCU module, which facilitates the MCU module to collect the charging status of the power interface, thereby realizing the detection of the usage status of the data line. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a structural schematic diagram of a recording and playback voice broadcast data cable according to Embodiment 1 of the present utility model;

[0017] Figure 2 This is a structural schematic diagram of a microphone circuit module for a voice recording and playback data line of embodiment 1 of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a microphone circuit module for recording and playing voice broadcasting data line in Embodiment 2 of the utility model.

[0019] In the figure: 1. Power interface; 2. MCU module; 3. Voice circuit module; 4. Speaker; 5. Microphone circuit module; 6. Transformer circuit module; 7. Key recording circuit module. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Example 1: Figure 1 , Figure 2 As shown, the utility model is a recording and playback voice broadcasting data cable, including a power interface 1, the power interface 1 can be a USB power interface, lightning, type-c, micro and other existing interfaces used in the market, so that the utility model can be used on a variety of data lines such as C to C data line, C to L data line, A to C data line, A to L data line; MCU module 2, voice circuit module 3, speaker 4, microphone circuit module 5 and transformer circuit module 6, the power interface 1 is connected to the charger connected to the data line; the MCU module 2 adopts the MSOP10 chip; the transformer circuit module 6 adopts the 7602A50 chip;

[0022] The power supply pin of the power interface 1 is connected to the input end of the transformer circuit module 6, the output end of the transformer circuit module 6 is connected to the MCU module 2 and the voice circuit module 3, and is used to supply power to the MCU module 2 and the voice circuit module 3, the speaker 4 is connected to the audio output end of the voice circuit module 3, the microphone circuit module 5 is connected to the audio collection end of the voice circuit module 3, the voice circuit module 3 is connected to the MCU module 1, and the signal transmission pin of the power interface 1 is connected to the signal transmission pin on the MCU module 2. Through the relevant control of the microphone circuit module 5 and the key recording circuit module 7, different audio information can be recorded, and the collected user audio information can be automatically saved to the internal Flash of the voice circuit module 3, wherein the corresponding broadcast information is made according to the state of the data line; to reflect the use status of the data line, wherein the signal transmission pin of the power interface 1 is connected to the signal transmission pin on the MCU module 2, so that the power interface 1 and the MCU module 2 exchange signals, which is convenient for the MCU module 2 to collect the charging status of the power interface 1, thereby realizing the detection of the use status of the data line.

[0023] It also includes a key recording circuit module 7 connected to the MCU module 2, and the key recording circuit module 7 is used to control the microphone circuit module 5 to record; S1, S2, and S3 are three touch switches respectively, and they are all connected to the IO pins of U3. Users can use these three key recordings to realize customized broadcast content. When MCU detects that the corresponding key is pressed, it will send a recording command to U2 to start recording. When the key is released, the recording ends. After the recording is completed, the MCU will send a loop playback command to U2. The recording can be saved when the recording is satisfactory. There are a total of 3 buttons, and users can use the 3 button combinations to record voice broadcast information in various states.

[0024] like Figure 2 As shown, the microphone circuit module 5 includes an electret microphone MK1; capacitors C1, C2, C3 and C4; resistors R1 and R2;

[0025] One end of the capacitor C1, one end of C2 and one end of C3 are grounded, and the other end of the capacitor C3 is connected to one end of the resistor R1 and the OUT output end on the voice circuit module 3; the other end of the resistor R1 is connected to the other end of the capacitor C1, the other end of C2 and one end of the resistor R2, and the other end of the resistor R2 is connected to one end of the capacitor C4 and the electret microphone MK1; wherein the capacitors C1, C2, C3 and C4; the resistors R1 and R2 form an RC filter circuit for filtering, so that the recording effect of the electret microphone MK1 is better and the influence of noise is reduced.

[0026] The other end of the capacitor C4 is connected to the Mic pin on the voice circuit module.

[0027] The resistance value of the resistor R1 is 6.8 kΩ; the resistance value of the resistor R2 is 2.2 kΩ.

[0028] It also includes a first program burning interface P1 connected to the MCU module 2, and the first program burning interface P1 is used to upgrade the processing chip in the MCU module.

[0029] It also includes a second program burning interface P2 connected to the voice circuit module 3, and the second program burning interface P2 is used to upgrade the voice chip in the voice circuit module.

[0030] like Figure 3As shown, the technical difference between this embodiment and embodiment 1 is that it also includes an output interface 8, which is connected to the power interface 1, the MCU module 2 and the voice circuit module 3. Due to the dense wiring, not all pins are connected in the figure, and the connection is represented by the wiring pin end in the circuit. The output interface 8 is compatible with lightning, type-c, and micro, so that the utility model can be used on a variety of data lines such as C to C data line, C to L data line, A to C data line, A to L data line, etc.

[0031] Working principle: Through the relevant control of the microphone circuit module 5 and the key recording circuit module 7, different audio information can be recorded, and the collected user audio information can be automatically saved in the internal Flash of the voice circuit module 3, wherein corresponding broadcast information is made according to the status of the data line; to reflect the usage status of the data line, wherein the signal transmission pin of the power interface 1 is connected to the signal transmission pin on the MCU module 2, so that signal exchange is carried out between the power interface 1 and the MCU module 2, which facilitates the MCU module 2 to collect the charging status of the power interface 1, thereby realizing the detection of the usage status of the data line.

[0032] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A data line for recording and playing voice broadcast, comprising a power interface (1), an MCU module (2), a voice circuit module (3), a speaker (4), a microphone circuit module (5) and a transformer circuit module (6), wherein the power interface (1) is connected to a charger connected to the data line; characterized in that: The power supply pin of the power interface (1) is connected to the input end of the transformer circuit module (6); the output end of the transformer circuit module (6) is connected to the MCU module (2) and the voice circuit module (3) for supplying power to the MCU module (2) and the voice circuit module (3); the speaker (4) is connected to the audio output end of the voice circuit module (3); the microphone circuit module (5) is connected to the audio collection end of the voice circuit module (3); the voice circuit module (3) is connected to the MCU module (2); and the signal transmission pin of the power interface (1) is connected to the signal transmission pin on the MCU module (2).

2. A recording and playback voice broadcast data cable according to claim 1, characterized in that: It also includes a key recording circuit module (7) connected to the MCU module (2), and the key recording circuit module (7) is used to control the microphone circuit module (5) to record.

3. A recording and playback voice broadcast data cable according to claim 1, characterized in that: The microphone circuit module (5) comprises an electret microphone MK1; capacitors C1, C2, C3 and C4; resistors R1 and R2; One end of the capacitor C1, one end of C2 and one end of C3 are grounded, and the other end of the capacitor C3 is connected to one end of the resistor R1 and the OUT output end of the voice circuit module (3); the other end of the resistor R1 is connected to the other end of the capacitor C1, the other end of C2 and one end of the resistor R2, and the other end of the resistor R2 is connected to one end of the capacitor C4 and the electret microphone MK1; The other end of the capacitor C4 is connected to the Mic pin on the voice circuit module.

4. A data cable for recording and playing voice broadcast according to claim 3, characterized in that: The resistance value of the resistor R1 is 6.8 kΩ; the resistance value of the resistor R2 is 2.2 kΩ.

5. The recording and playback voice broadcast data cable according to claim 1, characterized in that: It also comprises a first program burning interface P1 connected to the MCU module (2), wherein the first program burning interface P1 is used to upgrade the processing chip in the MCU module.

6. A data cable for recording and playing voice broadcast according to claim 1, characterized in that: It also comprises a second program burning interface P2 connected to the voice circuit module (3), wherein the second program burning interface P2 is used to upgrade the voice chip in the voice circuit module.

7. The recording and playback voice broadcast data cable according to claim 1, characterized in that: The power interface (1) is one of a USB power interface, a lightning interface, a type-c interface and a micro interface.

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