WO2022061653A1 - Jack-plug detection apparatus, audio processing device, audio processing system, and jack-plug detection method - Google Patents

Abstract

A jack-plug detection apparatus (10), an audio processing device (100), an audio processing system (1000) and a jack-plug detection method. The jack-plug detection apparatus (10) comprises a detection module (12) and a plurality of contact terminals (11), wherein the detection module (12) applies detection voltages to the contact terminals (11) to detect electrical parameters of the contact terminals, acquires an audio signal parameter of an audio signal, and determines a signal type of a jack-plug part (211) according to the electrical parameters and the audio signal parameter.

Description

Plug detection device, audio processing device, audio processing system and plug detection method technical field

The present application relates to the technical field of audio equipment, and in particular, to a plug detection device, an audio processing device, an audio processing system and a plug detection method.

Background technique

The plugs of audio equipment such as headphones and microphones and the interfaces of equipment that use audio equipment for playback and recording (such as mobile phones, computers, PTZs, mobile platforms, etc.) are generally compatible. For example, three-stage plugs are suitable for three-stage Interface, the four-segment plug is adapted to the four-segment interface. At present, the playback and recording equipment cannot recognize and adapt to the type of headphone plug. When the four-segment plug is inserted into the three-segment interface, the general audio The type cannot be recognized, detected and adapted, resulting in the audio device not working properly. At this time, it is necessary to manually select the appropriate adapter to realize the adaptation of the four-segment plug and the three-segment interface.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a plug detection apparatus, an audio processing device, an audio processing system, and a plug detection method.

Embodiments of the present application provide a plug detection device. The plug detection device includes: a detection module and a plurality of contact terminals; the plurality of contact terminals are arranged in an interface, and the interface is used for accommodating a plug of an audio device. Each contact terminal is in contact with different plug parts arranged along the axial direction of the plug respectively; the detection module is used to apply a detection voltage to the contact terminal and detect the electrical parameters of the contact terminal; obtain the audio signal of the plug part in contact with the contact terminal through the contact terminal , and obtain the audio signal parameters of the audio signal; determine the signal type of the plug part according to the electrical parameters and the audio signal parameters.

Embodiments of the present application provide an audio processing device, where the audio processing device includes a bearing device and a plug detection device. The carrying device is formed with an interface for accommodating a plug of the audio equipment; a plurality of contact terminals of the plug detection device are arranged in the interface. The plug detection device includes: a detection module and a plurality of contact terminals; the plurality of contact terminals are arranged in the interface, and the interface is used for accommodating the plug of the audio equipment. When the plug is inserted into the interface, the plurality of contact terminals are respectively arranged along the axial direction of the plug. The different plug parts are in contact with each other; the detection module is used to apply a detection voltage to the contact terminal and detect the electrical parameters of the contact terminal; obtain the audio signal of the plug part in contact with the contact terminal through the contact terminal, and obtain the audio signal parameters of the audio signal; Electrical parameters and audio signal parameters determine the signal type at the plug site.

Embodiments of the present application further provide an audio processing system, an audio processing system audio device, and an audio processing device, where the audio processing device includes a bearing device and a plug detection device. The carrier device is formed with an interface for accommodating a plug of the audio equipment; a plurality of contact terminals of the plug detection device are arranged in the interface. The plug detection device includes: a detection module and a plurality of contact terminals; the plurality of contact terminals are arranged in the interface, and the interface is used for accommodating the plug of the audio equipment. When the plug is inserted into the interface, the plurality of contact terminals are respectively arranged along the axial direction of the plug. The different plug parts are in contact with each other; the detection module is used to apply a detection voltage to the contact terminal and detect the electrical parameters of the contact terminal; obtain the audio signal of the plug part in contact with the contact terminal through the contact terminal, and obtain the audio signal parameters of the audio signal; Electrical parameters and audio signal parameters determine the signal type at the plug site.

Embodiments of the present application further provide a plug detection method for a plug detection device, where the plug detection device includes a plurality of contact terminals, and the plurality of contact terminals are arranged in an interface, and the interface is used for accommodating a plug of an audio device. The interface, a plurality of contact terminals are respectively in contact with different plug parts arranged along the axial direction of the plug; the plug detection method includes: applying a detection voltage to the contact terminal, and detecting the electrical parameters of the contact terminal; obtaining the plug contacting the contact terminal through the contact terminal The audio signal of the part is obtained, and the audio signal parameters of the audio signal are obtained; the signal type of the plug part is determined according to the electrical parameters and the audio signal parameters. In addition, since the plug detection device is provided with a plurality of contact terminals which are respectively in contact with different plug parts arranged along the axial direction of the plug, by selectively controlling the on-off of the connection between the corresponding contact terminal and the plug part, there is no need to use an adapter, One interface can be adapted to a variety of audio devices with different types of plugs.

In the plug detection device, audio processing device, audio processing system, and plug detection method according to the embodiments of the present application, according to the difference in impedance characteristics of different plug parts of the plug of the audio device contacted by the contact terminal, the characteristics of the electrical parameters of the contact terminal are also different. , and the audio signal parameters that can characterize whether the plug part is a normal audio device jointly determine the signal type, and the signal type can represent the functional type of the plug part, thereby determining the type of audio device. In addition, since the plug detection device is provided with a plurality of contact terminals which are respectively in contact with different plug parts arranged along the axial direction of the plug, by selectively controlling the on-off of the connection between the corresponding contact terminal and the plug part, there is no need to use an adapter, One interface can be adapted to a variety of audio devices with different types of plugs.

Additional aspects and advantages of embodiments of the present application will be set forth, in part, in the following description, and in part will be apparent from the following description, or learned by practice of embodiments of the present application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic structural diagram of an audio processing system according to some embodiments of the present application.

FIG. 2 is a schematic structural diagram of a plug detection device according to some embodiments of the present application.

FIG. 3 is a schematic diagram of the combination of a plug and an interface according to some embodiments of the present application.

4 to 18 are schematic flowcharts of plug detection methods according to some embodiments of the present application.

FIG. 19 is a schematic structural diagram of a plug detection device according to some embodiments of the present application.

detailed description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present application, and should not be construed as a limitation on the present application.

In the description of the present application, it should be understood that the terms "first" and "second" are only used for description purposes, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, features defined as "first", "second" may expressly or implicitly include one or more features. In the description of the present application, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be a mechanical connection, an electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present application, and should not be construed as a limitation on the present application.

The specifications of the plugs of audio equipment (such as headphones, microphones, etc.) are different. First, the size of the audio equipment (generally refers to the length of the plug) is different. At present, the plugs of common audio equipment (such as headphones, microphones, etc.) on the market Generally, it is 3.5mm (mm). However, there may still be 2.5mm, 6.35mm and other types of plugs on some older audio equipment, or some audio equipment used in unconventional fields; secondly, audio equipment The number of segments of the plugs is also different. There are two-segment, three-segment or four-segment plugs. The general mono audio equipment is a two-segment plug, and the stereo (including left and right channels) audio equipment is generally a three-segment plug. , Further, stereo audio equipment with microphone function is generally a four-segment structure, and the difference in the number of segments also leads to the difference in the size of the above-mentioned plug.

However, audio processing devices that can perform functions such as playback and recording (such as mobile phones, computers, PTZs, movable platforms, etc., the embodiments of this application take PTZs as an example) generally only have one interface, and the interface is only suitable for one type of interface. Type (two-stage, three-stage, four-stage, etc.) plugs, such as the 3.5mm three-stage plug for the gimbal, if a two-stage plug with 2.5mm or a 6.35mm plug is inserted on these heads When using audio devices with four-segment plugs, the gimbal cannot accurately identify and adapt to these audio devices. Instead, it is necessary to manually select a two-segment plug to three-segment plug adapter, or a four-segment plug to three-segment plug. The adapter of the type plug can realize the adaptation of the two-section plug and the four-section plug to the gimbal.

1, the present application provides an audio processing system 1000. The audio processing system 1000 includes an audio device 200 and an audio processing device 100. A plug 210 of the audio device 200 is detachably plugged into the interface 21 of the audio processing device 100.

Referring to FIG. 1 and FIG. 2 , the present application provides an audio processing apparatus 100 . The audio processing apparatus 100 includes a carrying apparatus 20 and a plug detection apparatus 10 . The carrier device 20 is formed with an interface 21 for accommodating the plug 210 of the audio device 200 ; the plurality of contact terminals 11 of the plug detection device 10 are arranged in the interface 21 . The audio processing device 100 includes any one of an imaging device, a pan/tilt, and a movable platform (such as a drone).

In the embodiment of the present application, the audio processing device 100 is a pan/tilt. The PTZ is used to install a terminal (such as a mobile phone), the mobile phone can be connected to the PTZ, the mobile phone can play audio and transmit the audio signal to the PTZ, and the PTZ transmits the audio signal to the audio equipment through the plug 210 inserted in the interface 21 ( For example, headphones) to realize audio playback; or, the audio device 200 can record, and the recording signal is transmitted to the PTZ through the connection between the plug 210 and the interface 21, and then transmitted from the PTZ to the mobile phone. Of course, the PTZ itself can also have audio playback and recording functions, without the need for a mobile phone to achieve audio playback and recording.

Referring to FIGS. 1 to 4 , the present application provides a plug detection method for the plug detection device 10 . The plug detection device 10 includes a plurality of contact terminals 11 , and the plurality of contact terminals 11 are arranged in the interface 21 , and the interface 21 is used for When the plug 210 of the audio device 200 is accommodated, when the plug 210 is inserted into the interface 21, the plurality of contact terminals 11 respectively contact with different plug parts 211 arranged along the axial direction of the plug 210; the plug detection method includes:

011: Apply a detection voltage to the contact terminal 11, and detect the electrical parameter of the contact terminal 11;

The electrical parameters include electrical parameters of the contact terminal, for example, one or more parameters of voltage, current, and resistance. The plug parts 211 with different impedance characteristics are in contact with the contact terminals 11 , and the electrical parameters of the contact terminals 11 are different. That is to say, the value of the electrical parameter can be obtained according to the detection voltage and the impedance characteristic of the plug portion 211 in contact with the contact terminal.

012: Obtain the audio signal of the plug part 211 in contact with the contact terminal 11 through the contact terminal 11, and obtain the audio signal parameters of the audio signal;

013: Determine the signal type of the plug part 211 according to the electrical parameter and the audio signal parameter.

The present application provides a plug detection device 10 . The plug detection device 10 includes a detection module 12 and a plurality of contact terminals 11 . A plurality of contact terminals 11 are arranged in the interface 21 , and the interface 21 is used to accommodate the plug 210 of the audio device 200 . When the plug 210 is inserted into the interface 21 , the plurality of contact terminals 11 are respectively connected with different plug parts arranged along the axial direction of the plug 210 . 211 contact; the detection module 12 is used to execute step 011, step 012 and step 013. That is, the detection module 12 is used to apply a detection voltage to the contact terminal 11 and detect the electrical parameters of the contact terminal 11, wherein the plug parts 211 with different impedance characteristics are in contact with the contact terminal 11, and the electrical parameters of the contact terminal 11 are different; Acquire the audio signal of the plug part 211 in contact with the contact terminal 11, and acquire the audio signal parameters of the audio signal; determine the signal type of the plug part 211 according to the electrical parameters and the audio signal parameters.

Specifically, the plug detection device 10 of the present application includes a plurality of contact terminals 11 , for example, the plug detection device 10 includes two contact terminals 11 , three contact terminals 11 , four contact terminals 11 , etc. In the embodiment of the present application, the plug detection The device 10 includes four contact terminals 11, which can be used to detect four different plug parts 211 of the four-section plug 210 respectively. When the plug 210 is inserted into the interface 21 for accommodating the plug 210 (as shown in FIG. 3 ), The four contact terminals 11 are respectively in contact with different plug parts 211 arranged along the axial direction of the plug 210 . The four contact terminals 11 are the first contact terminal 111 , the second contact terminal 112 , the third contact terminal 113 and the fourth contact terminal 114 respectively, and the direction in which the plug 210 is inserted (X direction in FIG. 3 ) is the first contact The arrangement direction of the terminal 111 to the fourth contact terminal 114, when the four-section plug 210 is inserted, the first contact terminal 111 to the fourth contact terminal 114 are in contact with four different plug parts 211 of the four-section plug 210 respectively; When the three-section plug 210 is inserted, the first contact terminal 111 to the third contact terminal 113 are in contact with three different plug parts 211 of the three-section plug 210 respectively; when the two-section plug 210 is inserted, the first contact terminal 111 to The second contact terminals 112 are respectively in contact with two different plug parts 211 of the three-segment plug 210 .

The detection module 12 includes a power supply unit 121 and a parameter reading unit 122 . The power supply unit 121 applies a detection voltage to the contact terminal 11 (for example, the power supply unit 121 applies a bias voltage to the contact terminal 11, the power supply unit 121 can be an internal output power supply of a codec (Codec), a low dropout linear regulator (low dropout regulator, LDO) power supply and other DC output power supplies), at this time, the parameter reading unit 122 can obtain the electrical parameters of the contact terminal 11 to which the bias voltage is applied, and the electrical parameters can include voltage and current. After the bias voltage is applied to the terminal 11, the voltage of the contact terminal 11 can be obtained. Since there are insulating rings between different plug parts 211, the voltage of the contact terminal 11 is only related to the contact plug part 211. The function type of each plug part 211 (such as playing equipment, active microphone, passive microphone, grounding, etc.) is different, and its impedance characteristics are also different. voltage is also different. Therefore, the detection module 12 can preliminarily determine the functional type of the plug part 211 in contact with the contact terminal 11 according to the voltage, for example, the functional type is playback device, microphone, grounding, and the like. After the function type of each plug part 211 is determined, the type of the plug 210 can be preliminarily determined. Of course, when the number of plugs 210 whose function type is a playback device (microphone) is 2, the playback device (microphone) includes a left channel and a right channel, and the impedance characteristics of the plug parts 211 corresponding to the left and right channels may also be the same. , the detection module 12 can determine whether the plug part 211 is the left channel or the right channel according to the axial arrangement position of the two. , the opposite direction of the X direction in FIG. 3 ) are arranged in sequence, after the plug 210 is inserted, the left channel is farther away from the outlet of the interface 21, the detection module 12 can determine the position of the plug according to the electrical parameters and the axial arrangement position of the two 211 is the left channel or the right channel; or, when there are two plug parts 211 whose function types are both playback devices, the detection module 12 can use any one of the plug parts 211 as the left channel, and the other plug part 211 as the left channel. right channel.

Because sometimes the plug 210 inserted is a plug 210 of a non-audio device 200 or a damaged audio device 200, if the impedance characteristic is the same as that of the plug 210 of the audio device 200, it may be mistakenly identified as a normal plug of the audio device 200 210, therefore, when acquiring the voltage of the contact terminal 11, the audio signal of the plug part 211 in contact with the contact terminal 11 can be acquired at the same time. obtained signal. For example, when the functional type of the plug part 211 is a microphone, the microphone audio signal can be obtained when the plug part 211 is driven by the microphone; for another example, when the plug part 211 is a playback device, the plug part 211 is driven by the playback device at this time. When the audio signal is played; when the inserted plug 210 is the plug 210 of the non-audio device 200 or the audio device 200 that has been damaged, it may cause that the microphone audio signal (playing audio signal) cannot be obtained, or the obtained microphone audio signal ( Playing audio signal) is quite different from the microphone audio signal (playing audio signal) obtained when the audio device 200 is normally driven, for example, the audio signal parameters of the audio signal are quite different, and the audio signal parameters may include amplitude, frequency spectrum, etc. Therefore, whether the plug 210 is the normal plug 210 of the audio device 200 can be accurately determined through the electrical parameters and audio signal parameters, and the functional type of the plug part 211 can be determined, thereby accurately identifying the type of the audio device 200 .

Further, the detection module 12 determines the functional type of the corresponding plug part 211 according to the audio signal parameters, for example, according to the electrical parameters of the contact terminal 11 to determine that the functional type of the plug part 211 is a microphone, if the audio signal parameter corresponding to the contact terminal 11 represents the plug If the functional type of the part 211 is a microphone, it can be accurately determined that the functional type of the plug part 211 is a microphone, which can improve the detection accuracy; if the audio signal parameter corresponding to the contact terminal 11 indicates that the functional type of the plug part 211 is a playback device, Then it means that the functional type of the plug part 211 determined by the electrical parameters of the contact terminal 11 may be wrong. The electrical parameters and audio signal parameters are determined, the function type of the plug part 211 is judged again, and the detection accuracy of the function type of the plug part 211 is improved.

The detection module can determine the signal type of the plug part according to the electrical parameters and audio signal parameters, and the signal type can represent the function type of the plug part 211. For example, the signal type is the signal corresponding to the contact terminal 11 and the function type of the contact terminal 11, using 5-bit binary representation, for example, the first contact terminal 111 to the fourth contact terminal 114 are represented by the first 2 bits in the 5-bit binary, the first contact terminal 111 corresponds to "00", the second contact terminal 112 corresponds to "01", the first The third contact terminal 113 corresponds to "10", and the fourth contact terminal 114 corresponds to "11"; the function type is represented by the last three bits in the 5-bit binary, the left channel playback device corresponds to "001", and the right channel playback device corresponds to "11". 010", ground corresponds to "011", passive microphone corresponds to "100", and active microphone corresponds to "101".

For example, a three-stage stereo headset, its signal type is "00001" (indicating that the function type of the first contact terminal 111 is the left channel playback device), "01010" (indicating that the function type of the second contact terminal 112 is the right channel) playback device), "10011" (indicates that the functional type of the third contact terminal 111 is ground). In this way, the function type of the plug portion 211 corresponding to each contact terminal 11 can be quickly obtained according to the signal type.

Then, the type of the audio device 200 can be determined according to the function type of the plug part 211 . For example, if the functional types of the corresponding plug parts 211 identified by the four contact terminals 11 are the left channel playback device, the right channel playback device, the grounding and the passive microphone, the type of the audio device 200 is a four-segment stereo band. Headphones for passive microphones; for another example, if the functional types of the corresponding plug parts 211 identified by the three contact terminals 11 are respectively left channel, right channel and ground, it means that the type of the audio device 200 is a three-stage stereo earphone .

In the plug detection method, plug detection device 10 , audio processing device 100 and audio processing system 1000 of the present application, according to the difference in impedance characteristics of different plug parts 211 of the plug 210 of the audio device 200 contacted by the contact terminal 11 , the electrical power of the contact terminal 11 The characteristics of the parameters are also different, and the audio signal parameters that can characterize whether the plug part 211 is a normal audio device 200 together determine the signal type. In addition, since the plug detection device 10 is provided with a plurality of contact terminals 11 respectively in contact with different plug parts 211 arranged along the axial direction of the plug 210, the connection between the corresponding contact terminals 11 and the plug parts 211 can be selectively controlled on and off. , without using adapters, one interface 21 can be adapted to a variety of audio devices 200 with different types of plugs 210 .

Referring to FIG. 2 and FIG. 5, in some embodiments, the plug detection method further includes:

014: Determine the number of plug parts 211 for transmitting the signal according to the signal type; and

015: Determine the first information of the audio device 200 according to the number of plug parts 211 for transmitting signals.

In some embodiments, the detection module 12 is further configured to perform steps 014 and 015 . That is, the detection module 12 is further configured to determine the number of plug parts 211 for transmitting signals according to the signal type; and determine the first information of the audio device 200 according to the number of plug parts 211 for transmitting signals.

Specifically, the functional types of the plug parts 211 used for transmitting signals generally include playback devices, active microphones, passive microphones, grounding, etc., that is to say, the plug parts 211 whose functional types can be identified by the detection module 12 are generally capable of transmitting signals. After the detection module 12 determines the signal type according to the electrical parameters and audio signal parameters of the plug part 211, the detection module 12 can determine the number of the plug parts 211 for transmitting the signal according to the number of signal types of the identified functional type, so as to determine the number of the plug parts 211 for transmitting the signal according to the use The number of plug parts 211 for transmitting signals determines the first information of the audio device 200, and the first information may include the number of segments of the audio device 200. It is understood that the number of segments of the audio device 200 may be equal to the number of plug parts 211 for transmitting signals. Of course, the number of segments of the audio device 200 can also be greater than the number of plug parts 211 for transmitting signals. Since the maximum number of segments detected by the plug detection device 10 is equal to the number of contact terminals 11 , when the number of segments of the audio device 200 is greater than the number of contact terminals 11 If it is a five-segment plug, the detected segment number of the audio device 200 is 4, but the actual segment number is 5.

Referring to FIG. 2 and FIG. 6, in some embodiments, the plug detection method further includes:

016: Determine the number of plug parts 211 for transmitting microphone signals according to the signal type; and

017: Determine the second information of the audio device 200 according to the number of the plug parts 211 for transmitting the microphone signal.

In some embodiments, the detection module 12 is further configured to perform steps 016 and 017 . That is, the detection module 12 is further configured to determine the number of plug parts 211 for transmitting microphone signals according to the signal type; and determine the second information of the audio device 200 according to the number of plug parts 211 for transmitting microphone signals.

Specifically, after the detection module 12 determines the signal type according to the electrical parameters and audio signal parameters of the plug part 211, the function type of the plug part 211 is determined, wherein the plug part 211 whose function type is a microphone is used for transmitting microphone signals 211 of the plug portion. It can be understood that microphones can also be divided into left channel microphones and right channel microphones. From the perspective of pure impedance characteristics, the difference between the two may be small. It can be determined that the current microphone is a two-channel microphone (that is, including a left-channel microphone and a right-channel microphone), and when the number of plug parts 211 for microphones according to the functional type is three, it can be determined that the current microphone is three. The second information of the audio device 200 is determined according to the number of the plug parts 211 for transmitting microphone signals, and the second information may include whether the audio device 200 has a microphone function, such as when the plug parts used for transmitting microphone signals When the number of 211 is greater than or equal to 1, it is considered that the audio device 200 has a microphone function; the second information may also include the microphone type of the audio device 200, such as a mono microphone, a two-channel microphone, a three-channel microphone, and the like.

Referring to FIG. 2 and FIG. 7, in some embodiments, the plug detection method further includes:

018: If there is a plug portion 211 for transmitting a microphone signal, it is determined that the audio device 200 has a microphone function;

019: According to the signal type, determine whether the plug portion 211 for transmitting the microphone signal applies current to the contact terminal 11; and

020: Determine the third information of the audio device 200 according to the judgment result.

In some embodiments, the detection module 12 is further configured to perform steps 018 , 019 and 020 . That is, the detection module 12 is also used to determine that the audio device 200 has a microphone function when there is a plug portion 211 for transmitting microphone signals; according to the signal type, determine whether the plug portion 211 for transmitting microphone signals is applied to the contact terminal 11 . and the third information of the audio device 200 is determined according to the judgment result.

Specifically, after it is determined that the audio device 200 has a microphone function according to the number of plug parts 211 for transmitting microphone signals, the microphone type of the audio device 200 can be further determined. In addition to the number of channels of the microphones determined by the number, there are differences between active microphones and passive microphones. The interface 21 supplies power. The functional types of the plug part 211 in the audio device 200 also include active microphones and passive microphones. The impedance characteristics of the plug parts 211 corresponding to the active microphone and the passive microphone are different, and the plug can be determined according to the voltage of the contact terminal 11. The part 211 is an active microphone or a passive microphone. In addition, since the active microphone is powered by the audio device 200, when the voltage of the contact terminal 11 corresponding to the active microphone is obtained, the current at the contact terminal 11 can be obtained at the same time to determine whether to receive or not. The current input by the external power supply, according to the judgment result, can determine the third information of the audio device 200, and the third information can include whether the microphone of the audio device 200 is active, for example, if the plug part 211 for transmitting the microphone signal is applied to the contact terminal 11 If the plug part 211 for transmitting the microphone signal does not apply current to the contact terminal 11, the function type of the plug part 211 is a passive microphone, so according to the judgment As a result, it is determined whether the plug portion 211 for transmitting the microphone signal is active, so as to further improve the detection accuracy by further improving the function type of the microphone.

Referring to Figures 2 and 8, in some embodiments, step 011 includes:

0111: Apply a detection voltage to a portion of the plurality of contact terminals 11, and detect the electrical parameter of the contact terminal 11 to which the detection voltage is applied.

In some embodiments, the detection module 12 is further configured to perform step 0111. That is, the detection module 12 is also used to apply a detection voltage to some of the plurality of contact terminals 11 , and to detect electrical parameters of the contact terminals 11 to which the detection voltage is applied.

Specifically, the power supply unit 121 is used to apply the detection voltage to the contact terminals 11, for example, the power supply unit 121 is used to apply the detection voltage to a portion of the plurality of contact terminals 11, the number of which is smaller than or the number of the contact terminals 11, such as The power supply unit 121 is used to apply a detection voltage to one of the plurality of contact terminals 11, and the parameter reading unit 122 is used to read the electrical parameters of the contact terminal 11 to which the detection voltage has been applied. The detection voltage is applied to the terminal 11, so that the parameter reading unit 122 sequentially acquires the electrical parameters of the contact terminal 11 to which the detection voltage is applied; alternatively, the power supply unit 121 is used to apply the detection voltage to two or three of the plurality of contact terminals 11 , the parameter reading unit 122 is used to read the electrical parameters of the contact terminals 11 to which the detection voltage is applied; in this way, only a detection voltage needs to be applied to a part of the contact terminals 11 each time, and only the electrical parameters of the part of the contact terminals 11 need to be acquired, The circuit design is relatively simple.

In other embodiments, the power supply unit 121 applies the detection voltage to all the contact terminals 11, and the parameter reading unit 122 is used to read the electrical parameters of the contact terminals 11 to which the detection voltage is applied, so as to complete the electrical parameters of all the contact terminals 11 at the same time. The acquisition of parameters is beneficial to improve the detection efficiency.

Referring to FIG. 2 and FIG. 9, in some embodiments, the contact terminal 11 includes the target contact terminal 11, and the plug detection method further includes:

021: Drive the audio device 200 through the target contact terminal 11 according to the signal type.

In some embodiments, the plug detection device 10 further includes a driving module 13 , and the driving module 13 is configured to perform step 021 . That is, the driving module 13 is used to drive the audio device 200 through the target contact terminal 11 according to the signal type.

Specifically, according to the function type of the plug part 211 of the plug 210 of the audio device 200 , the target contact terminal 11 for realizing the function of the audio device 200 can be determined, and the target contact terminal 11 is the contact for realizing the function of the corresponding plug part 211 . For the terminal 11, the drive module 13 can selectively control the on-off of the connection between the corresponding target contact terminal 11 and the plug part 211, so that there is no need to use an adapter, so that one interface 21 can be adapted to a variety of audio devices 200 with different types of plugs 210. , that is to say, the contact terminal 11 can not only realize the identification of the corresponding plug part 211, but also can be used to realize the function of the plug part 211. For example, the function type of the plug part 211 corresponding to the first contact terminal 111 is a microphone. To achieve the microphone function, the target contact terminal is the first contact terminal 111 , and the microphone audio signal obtained by the audio device 200 can be transmitted to the pan/tilt through the first contact terminal 111 corresponding to the plug part 211 . For example, the second contact terminal 112 corresponds to The function type of the plug part 211 is a playback device. If the audio playback function is to be realized, the target contact terminal is the second contact terminal 112. If the microphone function and the audio playback function are to be realized at the same time, the target contact terminal is the first contact terminal 111 and the audio playback function. Taking the second contact terminal 112 as an example to realize the audio playback function, the PTZ transmits the playback audio signal to the corresponding plug part 211 through the second contact terminal 112 , so as to play the audio through the audio device 200 . In this way, by selectively controlling the connection between the corresponding target contact terminal 11 and the plug part 211 , one interface 21 can be adapted to a variety of audio devices 200 with different types of plugs 210 without using an adapter.

Referring to FIG. 2 and FIG. 10 , in some embodiments, the contact terminal 11 includes an insertion contact terminal 115 , and the plug detection method further includes:

022 : Detect whether a plug 210 is inserted into the interface 21 according to the electrical parameters of the inserted contact terminal 115 .

In some embodiments, the contact terminal 11 includes the plug-in contact terminal 115 , and the detection module 12 is further configured to perform step 022 . That is, the detection module 12 is further configured to detect whether the plug 210 is inserted into the interface 21 according to the electrical parameters of the inserted contact terminal 115 .

Specifically, referring to FIG. 2 , it can be understood that after the plug 210 is inserted into the interface 21 , even the shortest two-section plug 210 can push the third contact terminal 113 and the fourth contact terminal 114 away. When the plug 210 is inserted), the inserted contact terminal 115 can be in contact with the third contact terminal 113 or the fourth contact terminal 114, so as to ensure that any type of plug 21 can be detected after being inserted. In this embodiment, the insertion contact terminal 115 is in contact with the third contact terminal 113 as an example for description. The detection principle when the insertion contact terminal 115 is in contact with the fourth contact terminal 114 is basically similar, and will not be repeated here.

Referring to FIG. 3 , after the plug 210 is inserted into the interface 21 , the contact between the third contact terminal 113 and the inserted contact terminal 115 is disconnected, and when the parameter reading unit 122 contacts and disconnects the third contact terminal 113 and the inserted contact terminal 115 , The electrical parameters received from the plug-in contact terminals 115 are different. Therefore, whether the plug 210 is plugged into the interface 21 can be accurately determined according to the electrical parameters at the plug-in contact terminals 115 . For example, the electrical parameters include voltage, when the third contact terminal 113 is in contact with the insertion contact terminal 115, the voltage is the voltage of the power supply unit 121, and when the third contact terminal 113 is disconnected from the insertion contact terminal 115, the voltage is 0, so that according to the insertion The voltage of the contact terminal 115 determines whether a plug 210 is plugged into the interface 21 .

In other embodiments, any one of the plurality of contact terminals 11 (such as the third contact terminal 113 or the fourth contact terminal 114 ) is used as the plug-in contact terminal 115 , except that the plug-in contact terminal 115 can identify the function type of the corresponding plug part 211 In addition, insertion detection can also be performed. As long as any plug 210 is inserted into the interface 21 , it will contact the insertion contact terminal 115 , so that whether a plug 210 is inserted into the interface 21 can be detected according to the electrical parameters of the inserted contact terminal 115 .

2 and 11, in some embodiments, step 012 includes:

0121: Determine the function type information of the plug part 211 in contact with the contact terminal 11 based on the electrical parameter;

0122: Acquire the audio signal of the plug part 211 in contact with the contact terminal 11 through the contact terminal 11 according to the function type information.

In some embodiments, the detection module 12 is further configured to perform steps 0121 and 0122. That is, the detection module 12 is also used to determine the function type information of the plug part 211 in contact with the contact terminal 11 based on the electrical parameters;

Specifically, when acquiring the audio signal, first determine the function type information of the plug part 211 based on the electrical parameters of the contact terminal 11 corresponding to the plug part 211 , and the function type information includes playback equipment, microphone, grounding, etc. The function type information is used to represent For the corresponding function of the plug part 211, if the function type information is a playback device, then the function of the plug part 211 is to play audio; if the function type information is a microphone, then the function of the plug part 211 is a recording function. Then the driving module 13 drives the plug part 211 to realize the corresponding function according to the function type of the plug part 211. For example, when the function type of the plug part 211 is a microphone, when the plug part 211 is driven by the microphone, the microphone audio signal can be obtained; For example, when the plug part 211 is a playback device, when the plug part 211 is driven by the playback device, a playback audio signal can be obtained;

The parameter reading unit 121 can acquire the audio signal of the plug part 211 in contact with the contact terminal 11 through the contact terminal 11 according to the function type of the plug part 211 . For example, the parameter reading unit 122 includes processing units for different audio signals, such as a playback processing unit for playback audio signals, and a microphone processing unit for microphone audio signals. By determining the function type of the plug part 211, the parameter reading unit 122 can call the processing unit corresponding to the function type for processing, so as to further judge whether the function type is judged incorrectly according to the processing result of the processing unit. When the audio signal parameter of the microphone audio signal is used, since the playback processing unit is only adapted to the playback audio signal, it will not be able to generate a normal processing result and report an error, so as to determine whether the function type determined according to the corresponding electrical parameter of the plug part 211 is wrong, Improve detection accuracy.

In addition, when the inserted plug 210 is a plug 210 of a non-audio device 200 or a damaged audio device 200, it may cause that the microphone audio signal (playing audio signal) cannot be obtained, or the obtained microphone audio signal (playing audio signal) may be different from the audio signal. The microphone audio signal (playing audio signal) obtained when the device 200 is normally driven is quite different. The processing unit can obtain the judgment result by extracting the audio signal parameters of the audio signal, and the judgment result includes that the function type is a playback device or a microphone. , or the function type cannot be obtained, wherein the judgment result that the function type cannot be obtained means that the inserted plug 210 is a plug 210 of a non-audio device 200 or a damaged audio device 200 .

Referring to FIG. 2 , in a specific example, the number of contact terminals 11 is four, which are the first contact terminal 111 to the fourth contact terminal 114 , which can detect the audio equipment 200 with the largest four-segment interface 21 currently on the market. The parameter reading unit 122 can set a parameter reading interface 123 for each contact terminal 11. This embodiment takes the plug 210 of the non-international standard audio device 200 as an example, because the non-international standard audio device 200 must exist The plug part 211 whose function type is grounded, for example, in the three-stage or four-stage headphone plug 210, the grounded plug part 211 is generally in contact with the second contact terminal 112, and the voltage of the grounded plug part 211 is generally 0V, so there is no need to set the The parameter reading interface 123 corresponding to the second contact terminal 112 is used to read the voltage of the second contact terminal 112, and the second contact terminal 112 only needs to be grounded, and the default voltage of the second contact terminal 112 is 0V. Therefore, the parameter reading unit 122 is provided with a first parameter reading interface 1231, a second parameter reading interface 1232 and a third parameter reading interface 1233, which respectively read the electrical parameters and audio signals of the first contact terminal 111, the second parameter reading interface 1232 and the second parameter reading interface 1233. Electrical parameters and audio signals of the contact terminal 112 , and electrical parameters and audio signals of the third contact terminal 113 . Table 1 shows the relationship between the impedance of the plug part 211 and the type of the corresponding audio equipment.

Table 1

As can be seen from Table 1, when the impedance is 0 ohms (Ω), it means that the contact terminal 11 is not in contact with the plug part 211 or the contact terminal 11 is in contact with the plug part 211 whose function type is ground. When the impedance is between 16Ω and 100Ω , it means that the contact terminal 11 is in contact with the plug part 211 and the functional type of the plug part 211 is a playback device. When the impedance is between 500Ω and 2000Ω, it means that the contact terminal 11 is in contact with the plug part 211 and the functional type of the plug part 211 is passive. Microphone, when the impedance is above 10000Ω, it means that the contact terminal 11 is in contact with the plug part 211 and the functional type of the plug part 211 is an active microphone. When the impedance is close to infinity, it means that the contact terminal 11 is in contact with the plug part 211 but the plug part 211 does not have any function, and only serves to increase the length of the plug 210 (hereinafter referred to as the insulating plug part 211).

It can be understood that the electrical parameters (take voltage as an example) read by the parameter reading interface 123 are different for different impedances. For example, when the impedance is 0Ω, the voltage range corresponding to the contact terminal 11 is [0, V1], that is, At this time, the plug part 211 corresponding to the contact terminal 11 does not exist or is grounded; when the impedance is between 16Ω and 100Ω, the voltage range corresponding to the contact terminal 11 is [V2, V3], that is, the plug part 211 corresponding to the contact terminal 11 is: Playing equipment; when the impedance is between 500Ω and 2000Ω, the voltage range corresponding to the contact terminal 11 is [V4, V5], that is, the plug part 211 corresponding to the contact terminal 11 is a passive microphone; when the impedance is above 10000Ω, the The voltage range corresponding to the contact terminal 11 is [V6, V7], that is, the plug part 211 corresponding to the contact terminal 11 is an active microphone; when the impedance is close to infinity, the voltage range corresponding to the contact terminal 11 is equal to the bias of the power supply unit 121. Set the voltage V8, that is, the plug part 211 corresponding to the contact terminal 11 is the insulating plug part 211; among them, due to the increase of the resistance range, the voltage allocated to the contact terminal 11 is larger, and V1 to V8 increase in turn and can be adjusted according to the power supply. The bias voltage of the output of the unit 121 is determined, and [0, V1], [V2, V3], [V4, V5], and [V6, V7] do not intersect.

Referring to FIG. 2 , the detection module 12 includes a plurality of first control switches 124 and second control switches 125 , and the control switches may be software logic control switches or physical circuit control switches.

The plurality of first control switches 124 respectively control the on-off of the parameter reading interface 123 and the corresponding contact terminal 11 . When the first control switch 124 is controlled to be closed, the parameter reading interface 123 is used to read the contact from the corresponding contact terminal 124 of the first control switch 124 . Terminal 11 reads electrical parameters and audio parameters. In addition, since the second contact terminal 112 may only contact the grounded plug part 211 or not contact any plug part 211, neither the electrical parameters nor the audio parameters of the second contact terminal 112 need to be acquired.

The plurality of second control switches 125 respectively control the power supply unit 121 and the driving module 13, and the on-off of the corresponding contact terminals 11. When the second control switches 125 are controlled to be closed, the power supply unit 121 outputs the bias to the contact terminals 11 corresponding to the control switches. When the voltage V8 is set, the driving module 13 can also drive the corresponding contact terminal 11 and the plug part 211 at this time, so as to realize the function of the plug part 211 .

The number of the second control switches 125 is three, namely SW1 , SW2 and SW3 , which are respectively used to control whether to acquire electrical parameters and audio parameters of the first contact terminal 111 , the third contact terminal 113 and the fourth contact terminal 114 .

The number of the second control switches 125 is five, which are S4, S5, S6, S7 and S8 respectively, two of which are used to control the on-off between the power supply unit 121 and the fourth contact terminal 114 (SW4 and SW7 in FIG. 2 ). ), which can ensure that when one of the second control switches 125 is damaged, the on-off control of the power supply unit 121 and the fourth contact terminal 114 can also be realized through the other second control switch 125, and the remaining three are used to control the power supply unit 121 and the fourth contact terminal 114 respectively. The on-off of the first contact terminal 111, the second contact terminal 112 and the third contact terminal 113, as shown in FIG. 2, SW5 controls the on-off of the power supply unit 121 and the first contact terminal 111, and SW6 controls the power supply unit 121 and the third contact terminal 111. The on-off of the contact terminal 113 , SW4 and SW7 can all independently control the on-off of the power supply unit 121 and the fourth contact terminal 114 .

Please refer to FIG. 3 , when the plug 210 of the audio device 200 is inserted into the interface 21 of the pan/tilt head, the third contact terminal 113 is pushed up by the plug 210, so that the connection between the third contact terminal 113 and the inserted contact terminal 115 is disconnected, and the parameter read The extraction unit 122 is provided with an insertion detection interface 1234, and the electrical parameters of the inserted contact terminal 115 are obtained through the insertion detection interface 1234. Since the electrical parameters obtained when the contact terminal 113 and the inserted contact terminal 115 are connected and disconnected are different, according to the insertion The electrical parameter of the contact terminal 115 determines whether a plug 210 is inserted into the interface 21 .

Referring to FIG. 12 , after it is determined that the plug 210 is inserted into the interface 21 , it starts to detect the type of the audio device 200 . At this time, the plug detection device 10 first controls the SW1 and SW5 to be turned on, and the power supply unit 121 applies a bias voltage to the corresponding contact terminal 11 , to detect whether the first contact terminal 111 contacts the plug part 211 and determine the type of the plug part 211. For the plug 210 of the non-international standard audio equipment 200, the plug part 211 corresponding to the first contact terminal 111 may only be absent or microphone.

When the voltage U1 of the first contact terminal 111 is at [0, V1], it can be determined that the plug portion 211 corresponding to the first contact terminal 111 does not exist, and the plug 210 of the current audio device 200 is a two-stage or three-stage plug 210 . The detection module 12 turns off SW1 and SW5 for the next detection, and controls SW3 and SW4 to be turned on to detect the type of the plug portion 211 that the fourth contact terminal 114 contacts.

When the voltage U4 of the fourth contact terminal 114 is at [V2, V3], it can be determined that the functional type of the plug part 211 corresponding to the fourth contact terminal 114 is a playback device, and the type of the plug part 211 contacted by the third contact terminal 113 can be further detected. , at this time, SW3 and SW4 are turned off, and SW2 and SW6 are turned on. When the voltage U3 of the third contact terminal 113 is at [0, V1], it can be determined that the functional type of the plug part 211 corresponding to the third contact terminal 113 is grounding, The ground of the three-stage plug 210 is generally in contact with the second contact terminal 112. Therefore, it can be basically determined that the type of the audio device 200 is a two-stage mono headset; when the voltage U3 of the third contact terminal 113 is between [V2, V3 ], it can be determined that the functional type of the plug part 211 corresponding to the third contact terminal 113 is a playback device, and the ground of the three-stage plug 210 is generally in contact with the second contact terminal 112. Therefore, it can be basically determined that the type of the audio device 200 is Three-stage stereo earphone; when the voltage U3 of the third contact terminal 113 is equal to V8 (the voltage U3 of the third contact terminal 113 is equal to V8 means that the difference between the voltage U3 of the third contact terminal 113 and the value of V8 is less than a predetermined difference value), it can be determined that the functional type of the plug part 211 corresponding to the third contact terminal 113 is the insulating plug part 211, and the ground of the three-section plug 210 is generally in contact with the second contact terminal 112. The type is a three-stage monaural headphone.

Referring to FIG. 13 , when the voltage U4 of the fourth contact terminal 114 is at [V4, V5], it can be determined that the functional type of the plug portion 211 corresponding to the fourth contact terminal 114 is a passive microphone. At this time, if the third contact terminal 113 If the voltage U3 of the third contact terminal 113 is located at [0, V1], it can be determined that the type of the audio device 200 is a two-stage mono passive microphone; at this time, if the voltage U3 of the third contact terminal 113 is located at [V4, V5], it can be determined that the first The functional type of the plug part 211 corresponding to the three-contact terminal 113 is a passive microphone, then it can be determined that the type of the audio device 200 is a three-stage dual-channel passive microphone; at this time, if the voltage U3 of the third contact terminal 113 is at [V6 , V7], it can be determined that the functional type of the plug part 211 corresponding to the third contact terminal 113 is an active microphone, then it can be determined that the type of the audio device 200 is a three-stage dual-channel active microphone, generally, the fourth contact terminal 114 corresponds to the left channel, and the third contact terminal 113 corresponds to the right channel, so the left channel and the right channel are respectively a passive microphone and an active microphone; at this time, if the voltage U3 of the third contact terminal 113 is equal to V8, it can be determined that The plug portion 211 corresponding to the third contact terminal 113 is an insulating plug portion 211 , so it can be determined that the type of the audio device 200 is a three-stage mono passive microphone.

Referring to FIG. 14 , when the voltage U4 of the fourth contact terminal 114 is at [V6, V7], it can be determined that the functional type of the plug portion 211 corresponding to the fourth contact terminal 114 is an active microphone. At this time, if the third contact terminal 113 If the voltage U3 of the third contact terminal 113 is located at [0, V1], it can be determined that the type of the audio device 200 is a two-stage mono active microphone; at this time, if the voltage U3 of the third contact terminal 113 is located at [V4, V5], it can be determined that the first The functional type of the plug part 211 corresponding to the three-contact terminal 113 is a passive microphone, then it can be determined that the type of the audio device 200 is a three-stage two-channel microphone, and the left and right channels are an active microphone and a passive microphone, respectively. At this time, if the voltage U3 of the third contact terminal 113 is located at [V6, V7], it can be determined that the functional type of the plug part 211 corresponding to the third contact terminal 113 is an active microphone, then the type of the audio device 200 can be determined to be three-stage At this time, if the voltage U3 of the third contact terminal 113 is equal to V8, it can be determined that the plug part 211 corresponding to the third contact terminal 113 is the insulating plug part 211, and the type of the audio device 200 can be determined to be three Segmented mono active microphone.

Referring to FIG. 15 , when the voltage U1 of the first contact terminal 111 is at [V4, V5], it can be determined that the plug part 211 contacted by the first contact terminal 111 is a passive microphone, and the plug 210 of the current audio device 200 is a four-stage type Plug 210. The detection module 12 disconnects SW1 and SW5 for the next detection, controls SW3 and SW4 to be turned on, and the power supply unit 121 applies a bias voltage to the corresponding contact terminal 11 to detect the type of the plug part 211 contacted by the fourth contact terminal 114 , it can be understood that in the four-section plug 210 of the non-international standard plug 210, the type of the plug 210 corresponding to the second contact terminal 112 is ground. Since the first contact terminal 111 is already a passive microphone, it is only necessary to judge the fourth contact The plug part 211 corresponding to the terminal 114 may be a playback device or an insulating plug part 211 .

When the voltage U4 of the fourth contact terminal 114 is at [V2, V3], it can be determined that the functional type of the plug part 211 corresponding to the fourth contact terminal 114 is a playback device, and the type of the plug part 211 contacted by the third contact terminal 113 can be further detected. At this time, SW3 and SW4 are turned off, and SW2 and SW6 are turned on. Similarly, it is only necessary to determine that the plug part 211 corresponding to the third contact terminal 113 is a playback device or an insulating plug part 211 . At this time, if the voltage U3 of the third contact terminal 113 is at [V2, V3], it can be determined that the functional type of the plug part 211 corresponding to the third contact terminal 113 is a playback device. Therefore, it can be basically determined that the type of the audio device 200 is four. Segment stereo headphone with passive microphone; when the voltage U3 of the third contact terminal 113 is equal to V8, it can be determined that the functional type of the plug part 211 corresponding to the third contact terminal 113 is the insulating plug part 211, so it can basically be determined that the audio equipment The 200 is a four-segment mono headset with a passive microphone.

Referring to FIG. 16 , when the voltage U4 of the fourth contact terminal 114 is equal to V8 (the voltage U4 of the fourth contact terminal 114 being equal to V8 means that the difference between the values of the voltage U4 of the fourth contact terminal 114 and the value of V8 is less than the predetermined difference) When the function type of the plug part 211 corresponding to the fourth contact terminal 114 is determined to be the insulating plug part 211, the type of the plug part 211 contacted by the third contact terminal 113 can be further detected. At this time, the SW3 and SW4 are turned off, and the SW2 and SW6, similarly, only needs to determine that the plug part 211 corresponding to the third contact terminal 113 is the playback device or the insulating plug part 211. At this time, if the voltage U3 of the third contact terminal 113 is at [V2, V3], it can be determined that the functional type of the plug part 211 corresponding to the third contact terminal 113 is a playback device. Therefore, it can be basically determined that the type of the audio device 200 is four. Segment mono headset with passive microphone; when the voltage U3 of the third contact terminal 113 is equal to V8, it can be determined that the function type of the plug part 211 corresponding to the third contact terminal 113 is the insulating plug part 211, so it can be basically determined The type of audio device 200 is a four-segment passive microphone.

Referring to FIG. 17 , when the voltage U1 of the first contact terminal 111 is at [V6, V7], it can be determined that the plug part 211 contacted by the first contact terminal 111 is an active microphone, and the plug 210 of the current audio device 200 is a four-stage type Plug 210. The detection module 12 turns off SW1 and SW5 for the next detection, and controls SW3 and SW4 to be turned on to detect the type of the plug portion 211 that the fourth contact terminal 114 contacts.

When the voltage U4 of the fourth contact terminal 114 is at [V2, V3], it can be determined that the functional type of the plug part 211 corresponding to the fourth contact terminal 114 is a playback device, and the type of the plug part 211 contacted by the third contact terminal 113 can be further detected. At this time, SW3 and SW4 are turned off, and SW2 and SW6 are turned on. Similarly, it is only necessary to determine that the plug part 211 corresponding to the third contact terminal 113 is a playback device or an insulating plug part 211 . At this time, if the voltage U3 of the third contact terminal 113 is at [V2, V3], it can be determined that the functional type of the plug part 211 corresponding to the third contact terminal 113 is a playback device. Therefore, it can be basically determined that the type of the audio device 200 is four. Segment stereo with active microphone earphones; when the voltage U3 of the third contact terminal 113 is equal to V8, it can be determined that the functional type of the plug part 211 corresponding to the third contact terminal 113 is the insulating plug part 211, so it can basically be determined that the audio equipment The Type 200 is a four-segment mono headset with an active microphone.

Referring to FIG. 18 , when the voltage U4 of the fourth contact terminal 114 is equal to V8 , it can be determined that the functional type of the plug part 211 corresponding to the fourth contact terminal 114 is the insulating plug part 211 , and the plug part contacted by the third contact terminal 113 can be further detected. 211 type, at this time, SW3 and SW4 are turned off, and SW2 and SW6 are turned on. Similarly, it is only necessary to determine that the plug part 211 corresponding to the third contact terminal 113 is a playback device or an insulating plug part 211. At this time, if the voltage U3 of the third contact terminal 113 is at [V2, V3], it can be determined that the functional type of the plug part 211 corresponding to the third contact terminal 113 is a playback device. Therefore, it can be basically determined that the type of the audio device 200 is four. Segment monophonic headphone with active microphone; when the voltage U3 of the third contact terminal 113 is equal to V8, it can be determined that the functional type of the plug part 211 corresponding to the third contact terminal 113 is the insulating plug part 211, so it can basically be determined The type of audio device 200 is a four-segment active microphone.

In this way, through the above process, the type of the non-international standard audio device 200 can be quickly detected, and combined with the characteristics of the non-international standard audio device 200, the part that does not need to be detected (such as the plug part 211 corresponding to the second contact terminal 112) is omitted. Type, etc.), and determine the segment number interval of the plug 210 through the electrical parameters of the first contact terminal 111, and then perform detection through the detection process corresponding to the segment number interval, so that it is not necessary to perform detection on all segments of the audio equipment 200, which can improve detection efficiency.

After preliminarily determining the type of the audio device 200 according to the electrical parameters of the contact terminal 11 , the driving module 13 controls the on-off of the corresponding control switch to drive the audio device 200 , and acquires the audio frequency obtained from the contact terminal 11 after driving the audio device 200 signal to obtain audio signal parameters to determine whether the function type of the plug part 211 corresponding to the contact terminal 11 determined according to the electrical parameters matches the function type of the corresponding plug part 211 determined by the audio signal parameters, and further ensure the function of the plug part 211. Type of detection accuracy. And the audio signal parameter can also be used to determine whether the plug part 211 corresponding to the contact terminal 11 is the plug part 211 of the non-audio device 200 or the damaged audio device 200 .

For example, referring to FIG. 3 and FIG. 19 , the detection module 12 preliminarily determines that the type of the audio device 200 to be detected is a two-stage mono headset according to the electrical parameters of the contact terminal 11, and the driving module 13 controls SW3 and SW7 to be turned on, The audio signal is transmitted to the audio device 200 for playing by driving the plug part 211 contacted by the fourth contact terminal 114, and the third parameter reading interface 1233 reads the audio signal at the fourth contact terminal 114, and transmits it to the playback processing unit for processing, Thereby, it is determined whether an audio signal is received or whether the audio signal is a playback audio signal according to the audio signal parameters of the audio signal. For example, if the audio signal is a playback audio signal, it can be further determined that the plug portion 211 corresponding to the fourth contact terminal 114 is a playback device, and the audio device 200 to be detected is a two-stage mono headset; if the audio signal is not a playback audio signal, Then there may be an error in the type of the audio device 200 preliminarily determined according to the electrical parameters of the contact terminal 11, and the electrical parameter detection needs to be performed again; if the audio signal cannot be obtained, the audio device 200 to be detected is not the audio device 200 or damaged. Two-stage mono headset.

In this way, the signal type of the plug part 211 determined by the electrical parameter and the audio signal parameter can more accurately determine the type of the audio device 200 to be detected, and avoid the interference of the non-audio device 200 and the damaged audio device 200 on the detection result.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples", etc., is meant to incorporate the embodiments A particular feature, structure, material, or characteristic described or exemplified is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Any description of a process or method in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for performing a specified logical function or step of the process , and the scope of the preferred embodiments of the present application includes additional implementations in which the functions may be performed out of the order shown or discussed, including performing the functions substantially concurrently or in the reverse order depending on the functions involved, which should It is understood by those skilled in the art to which the embodiments of the present application belong.

Logic and/or steps represented in flowcharts or otherwise described herein, for example, may be considered an ordered listing of executable instructions for performing logical functions, may be embodied in any computer-readable medium, for use with, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor 22, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device), device or equipment. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport the program for use by or in connection with an instruction execution system, apparatus, or apparatus. More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections with one or more wiring (electronic devices), portable computer disk cartridges (magnetic devices), random access memory (RAM), Read Only Memory (ROM), Erasable Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program may be printed, as may be done, for example, by optically scanning the paper or other medium, followed by editing, interpretation, or other suitable means as necessary process to obtain the program electronically and then store it in computer memory.

The audio processing system mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like. Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limitations to the present application. Embodiments are subject to variations, modifications, substitutions and variations.

Claims (25)

1. A plug detection device, characterized in that the plug detection device comprises: a detection module and a plurality of contact terminals;

   A plurality of the contact terminals are arranged in the interface, and the interface is used for accommodating the plug of the audio equipment. When the plug is inserted into the interface, the plurality of the contact terminals are respectively connected with the ones arranged along the axial direction of the plug. Contact between different plug parts;

   The detection module is used for:

   applying a detection voltage to the contact terminal, and detecting the electrical parameter of the contact terminal;

   Acquire the audio signal of the plug part in contact with the contact terminal through the contact terminal, and acquire the audio signal parameter of the audio signal;

   The signal type of the plug part is determined according to the electrical parameter and the audio signal parameter.
2. The plug detection device according to claim 1, wherein the detection module is further used for:

   determining the number of plug locations used to transmit the signal based on the signal type; and

   The first information of the audio device is determined according to the number of plug parts for transmitting signals.
3. The plug detection apparatus according to claim 2, wherein the first information includes the segment number of the plug of the audio device.
4. The plug detection device according to claim 1, wherein the detection module is further used for:

   determining the number of plug locations for transmitting microphone signals based on the signal type; and

   The second information of the audio device is determined depending on the number of plug parts for transmitting microphone signals.
5. The plug detection apparatus according to claim 4, wherein the second information includes whether the audio device has a microphone function.
6. The plug detection device according to claim 4, wherein the detection module is further used for:

   If there is a plug portion for transmitting a microphone signal, determine that the audio device has a microphone function;

   According to the signal type, determine whether the plug portion used for transmitting the microphone signal applies current to the contact terminal; and

   According to the judgment result, the third information of the audio device is determined.
7. The plug detection apparatus according to claim 6, wherein the third information includes whether a microphone of the audio device is active.
8. The plug detection device according to claim 1, wherein when a detection voltage is applied to the contact terminal and an electrical parameter of the contact terminal is detected, the detection module is used for:

   A detection voltage is applied to a portion of the plurality of contact terminals, and electrical parameters of the contact terminals to which the detection voltage is applied are detected.
9. The plug detection device according to claim 1, wherein the plug detection device further comprises a driving module, and the driving module is used for:

   Depending on the signal type, the audio device is driven through the target contact terminal.
10. The plug detection device according to claim 1, wherein the contact terminal comprises an insertion contact terminal, and the detection module is further used for:

    According to the electrical parameters of the inserted contact terminal, it is detected whether the plug is inserted into the interface.
11. The plug detection device according to claim 1, wherein when the audio signal of the plug part in contact with the contact terminal is acquired through the contact terminal, the detection module is used for:

    determining, based on the electrical parameter, function type information of the plug portion in contact with the contact terminal;

    According to the function type information, the audio signal of the plug part in contact with the contact terminal is acquired through the contact terminal.
12. An audio processing device, characterized in that the audio processing device comprises:

    a carrier device formed with an interface for accommodating a plug of an audio device; and

    The plug detection device according to any one of claims 1 to 11, wherein a plurality of the contact terminals of the plug detection device are provided in the interface.
13. The audio processing device according to claim 12, wherein the audio processing device comprises any one of an imaging device, a pan/tilt, and a movable platform.
14. An audio processing system, characterized in that the audio processing system comprises:

    audio equipment; and

    The audio processing device according to claim 12 or 13, wherein the plug of the audio device is detachably inserted into the interface of the audio processing device.
15. A plug detection method, which is characterized in that it is used in a plug detection device, the plug detection device includes a plurality of contact terminals, and the plurality of contact terminals are arranged in an interface, and the interface is used for accommodating a plug of an audio device. The plug is plugged into the interface, and a plurality of the contact terminals are respectively in contact with different plug parts arranged along the axial direction of the plug; the plug detection method includes:

    applying a detection voltage to the contact terminal, and detecting electrical parameters of the contact terminal;

    Acquire the audio signal of the plug part in contact with the contact terminal through the contact terminal, and acquire the audio signal parameter of the audio signal;

    The signal type of the plug part is determined according to the electrical parameter and the audio signal parameter.
16. The plug detection method according to claim 15, wherein the plug detection method further comprises:

    determining the number of plug locations used to transmit the signal based on the signal type; and

    The first information of the audio device is determined according to the number of plug parts for transmitting signals.
17. The plug detection method according to claim 16, wherein the first information includes the segment number of the plug of the audio device.
18. The plug detection method according to claim 15, wherein the plug detection method further comprises:

    determining the number of plug locations for transmitting microphone signals based on the signal type; and

    The second information of the audio device is determined depending on the number of plug parts for transmitting microphone signals.
19. The plug detection method according to claim 18, wherein the second information includes whether the audio device has a microphone function.
20. The plug detection method according to claim 19, wherein the determining the second information of the audio device according to the number of plug parts for transmitting microphone signals comprises: if there is a plug for transmitting microphone signals position, it is determined that the audio device has a microphone function;

    The plug detection method further includes:

    According to the signal type, determine whether the plug portion used for transmitting the microphone signal applies current to the contact terminal; and

    According to the judgment result, the third information of the audio device is determined.
21. The plug detection method according to claim 20, wherein the third information includes whether a microphone of the audio device is active.
22. The plug detection method according to claim 15, wherein the applying a detection voltage to the contact terminal and detecting the electrical parameter of the contact terminal comprises:

    A detection voltage is applied to a portion of the plurality of contact terminals, and electrical parameters of the contact terminals to which the detection voltage is applied are detected.
23. The plug detection method according to claim 15, wherein the contact terminal comprises a target contact terminal, and the plug detection method further comprises:

    Depending on the signal type, the audio device is driven through the target contact terminal.
24. The plug detection method according to claim 15, wherein the contact terminal comprises an insertion contact terminal, and the plug detection method further comprises:

    According to the electrical parameters of the inserted contact terminal, it is detected whether the plug is inserted into the interface.
25. The plug detection method according to claim 15, wherein the acquiring, through the contact terminal, the audio signal of the plug part in contact with the contact terminal comprises:

    determining, based on the electrical parameter, function type information of the plug portion in contact with the contact terminal;

    According to the function type information, the audio signal of the plug part in contact with the contact terminal is acquired through the contact terminal.

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