Control circuit and control method for expanding wireless microphone based on MTK platform

Abstract

The invention relates to the technical field of wireless microphone control, in particular to a control circuit and a control method for expanding a wireless microphone based on an MTK platform. The control circuit is electrically connected with the MTK platform and comprises an M2 interface module, a wireless receiver module, a power supply module and a platform chip module; the power supply module is connected with the M2 interface module; the M2 interface module is respectively connected with the wireless receiver module and the platform chip module; the control method comprises the following steps: the power supply module obtains a power supply output signal from the MTK platform and outputs a power supply; the M2 interface module receives the power supply and transmits the power supply to the wireless receiver module; the platform chip module receives a control signal from the MTK platform, and the M2 interface module controls the wireless receiver module to open a signal receiving mode; and the wireless receiver module receives a pairing request signal from the wireless microphone transmitter, and pairing is successful. And opening a signal receiving mode of the M2 interface module through the MTK platform so as to receive a pairing request signal of the wireless microphone transmitter at any time.

Description

Technical Field

[0001] The present application relates to the technical field of wireless microphone control, and in particular to a control circuit and a control method for extending a wireless microphone based on an MTK platform. Background Art

[0002] Most of the existing wireless microphone functions are connected to the device through the type-c interface. The whole consists of a microphone, a transmitter, a receiver and a type-c interface. That is, when working, the transmitter and receiver of the wireless microphone are paired and connected, and the receiver needs to be plugged into the type-c interface to connect to the device, thereby realizing the wireless microphone transmission function.

[0003] Sometimes, the receiver module is plugged into the type-c interface and connected to the device. Frequent plugging and unplugging of the receiver will lead to a decrease in performance stability, the wireless microphone transmitter and receiver are prone to unsuccessful pairing, and the receiver is inconvenient to carry. Summary of the invention

[0004] The technical problem to be solved by this application is to optimize the existing wireless microphone control solution. Based on the MTK platform control, the receiver module is directly plugged into the M2 interface of the motherboard, and there is no need to frequently plug and unplug the receiver module to improve the stability of wireless transmission. The transmission function can be realized as long as the wireless microphone transmitter and the receiver are successfully paired.

[0005] In a first aspect, an embodiment of the present invention provides a control method for extending a wireless microphone based on an MTK platform, including a control circuit applied to an extended wireless microphone based on an MTK platform, wherein the control circuit is electrically connected to the MTK platform, and the control circuit includes an M2 interface module, a wireless receiver module, a power module, and a platform chip module; the power module is connected to the M2 interface module, and the M2 interface module is respectively connected to the wireless receiver module and the platform chip module;

[0006] The control method comprises:

[0007] The power module obtains a power output signal from the MTK platform and outputs power;

[0008] The M2 interface module receives the power and transmits it to the wireless receiver module;

[0009] The platform chip module receives a control signal from the MTK platform, and the M2 interface module controls the wireless receiver module to turn on a signal receiving mode;

[0010] The wireless receiver module receives a pairing request signal from the wireless microphone transmitter, and the pairing is successful.

[0011] Preferably, after the step of the M2 interface module receiving the power supply and transmitting the power supply to the wireless receiver module, the method further comprises:

[0012] The platform chip module is connected to the wireless receiver module via the USB interface on the M2 interface module.

[0013] Preferably, the platform chip module receives a control signal from the MTK platform, and the M2 interface module controls the wireless receiver module to turn on a signal receiving mode, including:

[0014] The MTK platform is preset with a software logic configuration, and the platform chip module receives a control signal from the software logic configuration;

[0015] The M2 interface module receives a control signal from the platform chip module and controls the wireless receiver module to turn on a signal receiving mode.

[0016] In the second aspect, an embodiment of the present invention further discloses a control circuit for extending a wireless microphone based on the MTK platform, wherein the control circuit applies the control method for extending a wireless microphone based on the MTK platform as described in the first aspect above, and the control circuit includes an M2 interface module, a wireless receiver module, a power module and a platform chip module; the input end of the power module is connected to the MTK platform, the output end of the power module is connected to the M2 interface module, and the M2 interface module is respectively connected to the wireless receiver module and the platform chip module; the M2 interface module has a first USB interface, and the first USB interface is connected to the wireless receiver module and the platform chip module; the M2 interface module has several power supply interfaces, and the power supply interfaces are respectively connected to the power module.

[0017] Preferably, a plurality of filter capacitors are connected in parallel between the power supply interface and the power supply module.

[0018] Preferably, the power module has two input pins connected to the MTK platform, and the power module has two output pins connected to the M2 interface module.

[0019] Preferably, the power module has a switch pin, the switch pin is connected to a 5G power supply, and a resistor is connected between the 5G power supply and the switch pin.

[0020] Preferably, the power module further includes a fifteenth capacitor, one end of the fifteenth capacitor is connected to the switch pin, and the other end of the fifteenth capacitor is grounded.

[0021] Preferably, the power module has an output pin, the output pin is connected to the M2 interface module, and the output pin and the M2 interface module are connected to a plurality of timing capacitors.

[0022] Preferably, the platform chip module has a second USB interface, and the second USB interface is connected to the first USB interface.

[0023] Compared with the prior art, the present invention has at least one of the following beneficial technical effects:

[0024] The control method mainly performs communication control through the MTK platform, connects the M2 interface module through the platform chip module, and directly plugs the wireless receiver module into the M2 interface module, without frequently plugging and unplugging the wireless receiver module. The wireless receiver module and the M2 interface module are correspondingly connected to form communication. The signal receiving mode of the M2 interface module is turned on through the software logic configuration of the CPU control system of the MTK platform, so as to receive the pairing request signal of the wireless microphone transmitter at any time. When the wireless microphone transmitter is successfully paired with the wireless receiver module, the transmission function of the wireless microphone is realized.

[0025] In this regard, the M2 interface module serves as a bridge between the wireless microphone transmitter, wireless receiver module and platform chip module to ensure stable and effective signal transmission and communication. The PIN package definition on the design interface of the wireless receiver module must be compatible with the M2 interface module to ensure the stability of wireless transmission performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a flow chart of a control method for extending a wireless microphone based on the MTK platform in an embodiment of the present application.

[0028] Figure 2 This is a sub-flow chart of a control method for extending a wireless microphone based on the MTK platform in an embodiment of the present application.

[0029] Figure 3 A schematic block diagram of a control circuit for an extended wireless microphone based on the MTK platform provided in an embodiment of the present application.

[0030] Figure 4 Schematic diagram of the circuit structure of the M2 interface module in the control circuit of the wireless microphone extended based on the MTK platform in the embodiment of the present application.

[0031] Figure 5 It is a schematic diagram of the circuit structure of the power module in the control circuit of the wireless microphone extended based on the MTK platform in the embodiment of the present application.

[0032] Figure 6 It is a circuit structure diagram of the platform chip module in the control circuit of the wireless microphone extended based on the MTK platform in the embodiment of the present application.

[0033] Explanation of the accompanying drawings: 11, MTK platform; 12, power module; 13, platform chip module; 14, M2 interface module; 15, wireless receiver module; C15, fifteenth capacitor; C16, sixteenth capacitor; C17, seventeenth capacitor; C18, eighteenth capacitor; R, resistor. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0036] It should also be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in this application specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.

[0037] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0038] Please refer to Figure 1 and Figure 2The embodiment of the present application provides a control method for extending a wireless microphone based on the MTK platform, and the control method is applied to a control circuit for extending a wireless microphone based on the MTK platform. The control circuit is electrically connected to the MTK platform, and the control circuit includes an M2 interface module, a wireless receiver module, a power module, and a platform chip module. The power module is connected to the M2 interface module, and the M2 interface module is respectively connected to the wireless receiver module and the platform chip module.

[0039] The control method disclosed in this application is a control method for extending a wireless microphone based on the MTK platform. Figure 1 As shown, the control method includes steps S110 to S150.

[0040] S110: The power module obtains a power output signal from the MTK platform and outputs power.

[0041] The MTK platform is equipped with a CPU control system, which sends a power output signal to the power module. After receiving the power output signal, the power module outputs 3.8V power.

[0042] S120, the M2 interface module receives the power and transmits it to the wireless receiver module.

[0043] After receiving the power from the power module, the M2 interface module transmits the power to the wireless receiver module to provide power for the operation of the wireless receiver module.

[0044] In a specific embodiment, step S120 further includes step S130.

[0045] S130. The platform chip module is connected to the wireless receiver module via the USB interface on the M2 interface module.

[0046] S140: The platform chip module receives a control signal from the MTK platform, and the M2 interface module controls the wireless receiver module to turn on a signal receiving mode.

[0047] The CPU control system of the MTK platform sends a first control signal. After receiving the first control signal, the platform chip module sends a second control signal to the M2 interface module, and then the M2 interface module controls the wireless receiver module to turn on the signal receiving mode so as to receive the pairing request signal of the wireless microphone transmitter at any time.

[0048] like Figure 2 As shown, in a specific embodiment, step S140 also includes steps S141 and S142.

[0049] S141: The MTK platform is preset with a software logic configuration, and the platform chip module receives a control signal from the software logic configuration.

[0050] For this purpose, the software logic configuration is set in the CPU control system.

[0051] S142: The M2 interface module receives a control signal from the platform chip module, and controls the wireless receiver module to turn on a signal receiving mode.

[0052] S150: The wireless receiver module receives a pairing request signal from the wireless microphone transmitter, and the pairing is successful.

[0053] When the wireless receiver module receives a pairing request signal from the wireless microphone transmitter, the wireless receiver module can be successfully paired with the wireless microphone, thereby realizing the transmission function of the wireless microphone.

[0054] The control method of the embodiment of the present application mainly performs communication control through the MTK platform, connects the M2 interface module through the platform chip module, and directly plugs the wireless receiver module into the M2 interface module, without frequently plugging and unplugging the wireless receiver module, and the wireless receiver module and the M2 interface module are correspondingly connected to form communication. The signal receiving mode of the M2 interface module is turned on through the software logic configuration of the CPU control system of the MTK platform, so as to receive the pairing request signal of the wireless microphone transmitter at any time. When the wireless microphone transmitter is successfully paired with the wireless receiver module, the transmission function of the wireless microphone is realized.

[0055] In this regard, the M2 interface module serves as a bridge between the wireless microphone transmitter, wireless receiver module and platform chip module to ensure stable and effective signal transmission and communication. The PIN package definition on the design interface of the wireless receiver module must be compatible with the M2 interface module to ensure the stability of wireless transmission performance.

[0056] Please refer to Figures 3 to 6 The embodiment of the present invention also discloses a control circuit for an extended wireless microphone based on the MTK platform, wherein the control circuit is applied to the control method for extending a wireless microphone based on the MTK platform as in the above embodiment, and the control circuit includes an M2 interface module 14, a wireless receiver module 15, a power module 12 and a platform chip module 13. The input end of the power module 12 is connected to the MTK platform 11, the output end of the power module 12 is connected to the M2 interface module 14, and the M2 interface module 14 is respectively connected to the wireless receiver module 15 and the platform chip module 13.

[0057] Please refer to Figure 4On the one hand, the M2 interface module 14 has a first USB interface, and the first USB interface connects the wireless receiver module 15 and the platform chip module 13. In this embodiment, the first USB interface is the seventh pin and the ninth pin of the M2 interface module 14, so the platform chip module 13 communicates with the wireless receiver module 15 by connecting the seventh pin and the ninth pin.

[0058] On the other hand, the M2 interface module 14 has a plurality of power supply interfaces, which are respectively connected to the power module 12. In the present embodiment, there are five power supply interfaces, which are respectively the second pin, the fourth pin, the 70th pin, the 72nd pin and the 74th pin of the M2 interface module 14, and the five power supply interfaces are respectively connected to the power module 12, so as to power the wireless receiver module 15 through the M2 interface module 14.

[0059] Further, a number of filter capacitors are connected in parallel between the power supply interface and the power module 12. In the present embodiment, the second pin and the fourth pin of the M2 interface module 14 are connected to form a first connection point, and seven filter capacitors (i.e., C1 to C7) are connected in parallel between the first connection point and the power module 12, one end of each filter capacitor is respectively connected to the first connection point, and the other end of the filter capacitor is grounded. The seventieth pin, the seventy-second pin, and the seventy-fourth pin of the M2 interface module 14 are connected to form a second connection point, and seven filter capacitors (i.e., C8 to C14) are connected in parallel between the second connection point and the power module 12, one end of each filter capacitor is respectively connected to the second connection point, and the other end of the filter capacitor is grounded. Here, the high-frequency noise in the power supply is filtered by the filter capacitor to ensure the stability and reliability of the power input M2 interface module 14.

[0060] Please refer to Figure 5 In a specific embodiment, the power module 12 has two input pins connected to the MTK platform 11, and the power module 12 has two output pins connected to the M2 interface module 14. In this embodiment, the input pins of the power module 12 are the first pin and the second pin of the power supply chip, and the output pins of the power module 12 are the seventh pin and the eighth pin of the power supply chip.

[0061] The power module 12 has a switch pin, and the power module 12 also includes a fifteenth capacitor C15, one end of the fifteenth capacitor C15 is connected to the switch pin, and the other end of the fifteenth capacitor C15 is grounded. In this embodiment, the switch pin is the third pin of the power supply chip. Here, the switch pin is connected to the 5G power supply to control the on and off of the circuit. And a resistor R is connected between the 5G power supply and the switch pin to prevent large currents from impacting the circuit and play a role of insurance. When a short circuit occurs in the circuit, the resistor R will burn out, thereby protecting the subsequent circuit from expanding the fault.

[0062] Further, the power module 12 has an output pin, and in this embodiment, the output pin is the seventh pin and the eighth pin of the power supply chip. Among them, the output pin is connected to the M2 interface module 14, and the output pin is connected in series with the M2 interface module 14 to connect a number of timing capacitors, and the output pin is used to provide current to charge the timing capacitor. In this embodiment, two timing capacitors are provided, namely the sixteenth capacitor C16 and the seventeenth capacitor C17.

[0063] The power module 12 also includes an eighteenth capacitor C18, and the power module 12 has a bias voltage pin. In this embodiment, the bias voltage pin is the fourth pin of the power supply chip. One end of the eighteenth capacitor C18 is connected to the MTK platform 11 and the bias voltage pin, and the other end of the eighteenth capacitor C18 is grounded. The bias voltage pin is used to provide a stable DC voltage for the components in the circuit to ensure that the circuit operates normally under the expected working conditions.

[0064] Please refer to Figure 6 In a specific embodiment, the platform chip module 13 has a second USB interface, namely a USB_DP interface and a USB_DM interface. The second USB interface is used to connect to the first USB interface, so that the platform chip module 13 is connected to the wireless receiver module 15 through the M2 interface module 14.

[0065] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A control method for extending a wireless microphone based on the MTK platform, applied to a control circuit for extending a wireless microphone based on the MTK platform, characterized in that: The control circuit is electrically connected to the MTK platform, and the control circuit includes an M2 interface module, a wireless receiver module, a power module and a platform chip module; The power module is connected to the M2 interface module, and the M2 interface module is respectively connected to the wireless receiver module and the platform chip module; The control method comprises: The power module obtains a power output signal from the MTK platform and outputs power; The M2 interface module receives the power and transmits it to the wireless receiver module; The platform chip module receives a control signal from the MTK platform, and the M2 interface module controls the wireless receiver module to turn on a signal receiving mode; The wireless receiver module receives a pairing request signal from the wireless microphone transmitter, and the pairing is successful.

2. The control method for extending a wireless microphone based on the MTK platform according to claim 1, characterized in that: After the step of the M2 interface module receiving the power and transmitting the power to the wireless receiver module, the method further includes: The platform chip module is connected to the wireless receiver module via the USB interface on the M2 interface module.

3. The control method for extending a wireless microphone based on the MTK platform according to claim 1, characterized in that: The platform chip module receives a control signal from the MTK platform, and the M2 interface module controls the wireless receiver module to turn on a signal receiving mode, including: The MTK platform is preset with a software logic configuration, and the platform chip module receives a control signal from the software logic configuration; The M2 interface module receives a control signal from the platform chip module and controls the wireless receiver module to turn on a signal receiving mode.

4. A control circuit for extending a wireless microphone based on the MTK platform, characterized in that: The control circuit is applied to the control method for extending a wireless microphone based on the MTK platform as described in any one of claims 1 to 3, and the control circuit includes an M2 interface module, a wireless receiver module, a power module and a platform chip module; the input end of the power module is connected to the MTK platform, the output end of the power module is connected to the M2 interface module, and the M2 interface module is respectively connected to the wireless receiver module and the platform chip module; The M2 interface module has a first USB interface, which is connected to the wireless receiver module and the platform chip module; the M2 interface module has a plurality of power supply interfaces, which are respectively connected to the power supply modules.

5. The control circuit for extending a wireless microphone based on the MTK platform according to claim 4, characterized in that: A plurality of filter capacitors are connected in parallel between the power supply interface and the power supply module.

6. The control circuit for extending a wireless microphone based on the MTK platform according to claim 4, characterized in that: The power module has two input pins connected to the MTK platform, and the power module has two output pins connected to the M2 interface module.

7. The control circuit for extending a wireless microphone based on the MTK platform according to claim 4, characterized in that: The power module has a switch pin, the switch pin is connected to a 5G power supply, and a resistor is connected between the 5G power supply and the switch pin.

8. The control circuit for extending a wireless microphone based on the MTK platform according to claim 7, characterized in that: The power module further includes a fifteenth capacitor, one end of the fifteenth capacitor is connected to the switch pin, and the other end of the fifteenth capacitor is grounded.

9. The control circuit for extending a wireless microphone based on the MTK platform according to claim 4, characterized in that: The power supply module has an output pin, the output pin is connected to the M2 interface module, and the output pin and the M2 interface module are connected to a plurality of timing capacitors.

10. The control circuit for extending a wireless microphone based on the MTK platform according to claim 4, characterized in that: The platform chip module has a second USB interface, and the second USB interface is connected to the first USB interface.

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