A conference system

Abstract

The utility model relates to a kind of conference systems, including digital microphone, main control module, auxiliary control module, change-over switch component, main control module, auxiliary control module can be connected with digital microphone by change-over switch component, digital microphone is connected with auxiliary control module, system has working mode, hibernate mode, when in working mode, main control module is connected with digital microphone by change-over switch component;When switching from working mode to hibernate mode, auxiliary control module switches change-over switch component to make it connect with digital microphone;When switching from hibernate mode to working mode, auxiliary control module switches change-over switch component to make main control module connect with digital microphone.The utility model can realize low-power consumption operation under the premise of guaranteeing detection function, can timely inform main control module to resume work when there is sound to wake up, improve the response efficiency of system, solve the problem of the limitation of main control module model, make system design more flexible.

Description

Technical Field

[0001] This utility model relates to the field of telecommunications technology, specifically to a conference system. Background Technology

[0002] In existing technologies, conferencing systems typically include a System-on-Chip (SoC) and a Digital Microphone (DMIC). The SoC is a system-on-a-chip, a dedicated integrated circuit containing a complete system and embedded software. The DMIC is a digital microphone, commonly used in audio configurations of electronic devices. The SoC and DMIC connect, allowing the SoC to send control signals to the DMIC. If the system only maintains one mode, the SoC consumes a significant amount of power. Therefore, the system typically has a low-power mode (the SoC sends a 400kHz-800kHz clock signal to the DMIC) and a high-quality mode (the SoC sends a 2MHz-3.7MHz clock signal to the DMIC). Switching between low-power and high-quality modes requires a wake-up mode. Entering wake-up mode requires adjusting the clock signal frequency to 20kHz-200kHz and maintaining a stable frequency for at least 2 milliseconds. However, the SoC can only send clock signals at relatively high frequencies, and there are fewer SoC models that can send low-frequency clock signals. This results in low product development flexibility and high costs. Summary of the Invention

[0003] The purpose of this invention is to provide a conference system, particularly a conference system with high flexibility in selecting control modules.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A conference system includes a digital microphone, a main control module, an auxiliary control module, and a switching component. The main control module and the auxiliary control module can be connected to the digital microphone via the switching component. The digital microphone is connected to the auxiliary control module. The system has a working mode and a sleep mode. When the system is in working mode, the main control module is connected to the digital microphone through the switching component; When the system switches from working mode to sleep mode, the auxiliary control module switches the conversion switch component to connect to the digital microphone. When the system switches from sleep mode to working mode, the auxiliary control module switches the conversion switch component to connect the main control module to the digital microphone.

[0005] Preferably, when the system is in working mode, the main control module is configured to send a first clock signal to the digital microphone. When the system switches from working mode to sleep mode, the auxiliary control module is configured to send a second clock signal to the digital microphone for a set duration. When the system is in sleep mode, the auxiliary control module is configured to send a third clock signal to the digital microphone.

[0006] More preferably, the frequency of the first clock signal is greater than the frequencies of the second clock signal and the third clock signal; the frequency of the third clock signal is greater than the frequency of the second clock signal.

[0007] Preferably, in the above technical solution, the main control module is a System-on-a-Chip (SOC).

[0008] Preferably, in the above technical solution, the auxiliary control module is an MCU.

[0009] Preferably, in the above technical solution, the system further includes an imaging component, which is connected to the main control module.

[0010] More preferably, the imaging component includes a camera component and a video output component, both of which are connected to the main control module.

[0011] Preferably, the conference system further includes one or more of a sensing component, a touch screen component, and a personal identification component. The sensing component, the touch screen component, and the personal identification component are all connected to the auxiliary control module. When the system is in sleep mode, the sensing component, the touch screen component, and the personal identification component can send signals to the auxiliary control module to switch the system from sleep mode to working mode.

[0012] More preferably, the sensing component includes one or more of a temperature sensing component, an ambient light sensing component, and an air information sensing component.

[0013] Preferably, the conference system further includes one or more of a panel and a power supply, both of which are connected to the auxiliary control module. When the panel and the power supply are turned off, the system can switch from working mode to sleep mode.

[0014] Preferably, in the above technical solution, the digital microphone and the auxiliary control module are connected via a wake-up GPIO.

[0015] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: This invention introduces an auxiliary control module to control the digital microphone's switching between working mode and sleep mode, avoiding the requirement for the main control module's output signal frequency, thereby expanding the range of selectable main control module models and improving design flexibility. In system sleep mode, the auxiliary control module provides the necessary clock signal to the digital microphone, enabling the digital microphone to operate normally with low power consumption in sleep mode. When sound is detected, the digital microphone wakes up the auxiliary control module, which in turn notifies the main control module to wake up the system.

[0016] Compared with the prior art, this utility model can achieve low power consumption operation while ensuring the detection function. When there is a sound wake-up, it can promptly notify the main control module to resume work, which improves the system's response efficiency. At the same time, it solves the problem of limiting the model of the main control module, making the system design more flexible. Attached Figure Description

[0017] Appendix Figure 1 This is a block diagram illustrating the structure of a conference system in the prior art. Appendix Figure 2 This is a block diagram illustrating the structure of the conference system in this embodiment.

[0018] In the attached diagrams above: 1. Digital microphone; 2. Main control module; 3. Auxiliary control module; 4. Switching component; 50. Camera component; 51. Video output component; 60. Temperature sensor component; 61. Ambient light sensor component; 62. Air information sensor component; 7. Touch screen component; 8. Personal identification component; 9. Panel; 10. Power supply. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Figures 1 to 2 The diagram is a schematic block diagram. To maintain the brevity of the instruction manual, the proportions of each component are not listed in detail. However, the proportions and positions of each component should be considered part of the content of this instruction manual.

[0022] like Figure 2 As shown: This embodiment provides a conference system that can be applied in, for example, a conference room.

[0023] The conference system includes a digital microphone 1, a main control module 2, an auxiliary control module 3, a switching component 4, an image component, a sensor component, a touch screen component, a personal identification component, a panel, a power supply, etc.

[0024] Digital microphone 1 (DMIC) is the main sound device in the conference system, used for sound detection. One or more digital microphones 1 can be set.

[0025] As the main control component in the conference system, the main control module 2 adopts a system-on-a-chip (SOC) in this embodiment and is configured to transmit a first clock signal with a frequency in the range of 2MHz to 3.7MHz.

[0026] As an auxiliary control component in the conference system, the auxiliary control module 3 adopts a microcontroller unit (MCU) in this embodiment and is configured to send a second clock signal with a frequency range of 24kHz-200kHz and a third clock signal with a frequency range of 400KHz-800KHz.

[0027] The switching component 4 is used to switch the connection between the main control module 2, the auxiliary control module 3 and the digital microphone 1.

[0028] The imaging component includes a camera component 50 and a video output component 51. The camera component 50 is responsible for capturing image information of the meeting scene, while the video output component can output the processed video signal to the display device.

[0029] The sensing component includes one or more of a temperature sensing component 60, an ambient light sensing component 61, and an air information sensing component 62. The temperature sensing component 60 is used to sense temperature, the ambient light sensing component 61 is used to sense ambient light, and the air information sensing component 62 is used to sense distance, angle, etc.

[0030] The touchscreen component 7 is a display screen that can be operated with a finger or stylus to enable human-computer interaction with the system; the personal identification component 8 is used to sense the movement of people; the panel 9 is used to display the operating status of the system; and the power supply 10 is used to supply power to other systems.

[0031] The connection relationships of each component in this embodiment are described in detail below: The main control module 2 and the auxiliary control module 3 can be connected to the digital microphone 1 through a switching component 4. At the same time, the digital microphone 1 is connected to the auxiliary control module 3. In this embodiment, the digital microphone 1 and the auxiliary control module 3 are directly connected through the wake-up GPIO (General Purpose Input / Output Interface).

[0032] The imaging component is connected to the main control module 2. In this embodiment, both the camera component 50 and the video output component 51 are directly connected to the main control module 2. The camera component 50 transmits the image information of the conference scene to the main control module 2 for control and data processing, and then the processed video signal is output to the display device through the video output component 51.

[0033] The sensing components, touch screen component 7, and personal identification component 8 are all connected to the auxiliary control module 3; similarly, the panel 9 and power supply 10 are also connected to the auxiliary control module 3.

[0034] The working principle of this embodiment is explained in detail below: The conference system has two main operating states: working mode and sleep mode. When the conference system is in working mode, the main control module 2 is connected to the digital microphone 1 through the switch component 4. At this time, the main control module 2 sends a first clock signal to the digital microphone 1. Since the frequency of the first clock signal is relatively high, it is used to support the normal operation of the digital microphone 1 in working mode.

[0035] When the conference system switches from working mode to sleep mode, the auxiliary control module 3 switches the conversion switch component 4 to connect it to the digital microphone 1. During the switching process, the auxiliary control module 3 sends a second clock signal to the digital microphone 1 for a set duration (at least 2 milliseconds). This allows the system time to properly shut down each module before entering the sleep mode with wake-up function. At the same time, when the user turns off the panel 9 or the power supply 10, a signal can be sent to the auxiliary control module 3 to trigger the system to switch from working mode to sleep mode, thereby reducing system power consumption.

[0036] When the conference system is in sleep mode, the auxiliary control module 3 sends a third clock signal to the digital microphone 1 to support the low-power operation of the digital microphone 1 in sleep mode, while ensuring that the digital microphone 1 can respond to the wake-up command; at the same time, after the digital microphone 1, the sensing component, the touch screen component 7 or the personal identification component 8 detects the wake-up signal, they can send a signal to the auxiliary control module 3 to trigger the system to switch from sleep mode to working mode.

[0037] When the conference system switches from sleep mode to working mode, the auxiliary control module 3 switches the conversion switch component 4 to connect the main control module 2 to the digital microphone 1, thereby enabling the conference system to enter working mode again.

[0038] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A conference system, characterized in that: The system includes a digital microphone, a main control module, an auxiliary control module, and a switching component. The main control module and the auxiliary control module can be connected to the digital microphone via the switching component. The digital microphone is connected to the auxiliary control module. The system has a working mode and a sleep mode. When the system is in working mode, the main control module is connected to the digital microphone through the switching component; When the system switches from working mode to sleep mode, the auxiliary control module switches the conversion switch component to connect to the digital microphone. When the system switches from sleep mode to working mode, the auxiliary control module switches the conversion switch component to connect the main control module to the digital microphone.

2. The conference system according to claim 1, characterized in that: When the system is in working mode, the main control module is configured to send a first clock signal to the digital microphone. When the system switches from working mode to sleep mode, the auxiliary control module is configured to send a second clock signal to the digital microphone for a set duration. When the system is in sleep mode, the auxiliary control module is configured to send a third clock signal to the digital microphone.

3. The conference system according to claim 2, characterized in that: The frequency of the first clock signal is greater than the frequencies of the second and third clock signals; The frequency of the third clock signal is greater than the frequency of the second clock signal.

4. The conference system according to claim 1, characterized in that: The main control module is a SOC; The auxiliary control module is an MCU.

5. The conference system according to claim 1, characterized in that: The system also includes an imaging component, which is connected to the main control module.

6. The conference system according to claim 5, characterized in that: The imaging component includes a camera component and a video output component, both of which are connected to the main control module.

7. The conference system according to claim 1, characterized in that: The conference system also includes one or more of a sensing component, a touch screen component, and a personal identification component. The sensing component, touch screen component, and personal identification component are all connected to the auxiliary control module. When the system is in sleep mode, the sensing component, touch screen component, and personal identification component can send signals to the auxiliary control module to switch the system from sleep mode to working mode.

8. The conference system according to claim 7, characterized in that: The sensing components include one or more of a temperature sensing component, an ambient light sensing component, and an air information sensing component.

9. The conference system according to claim 1, characterized in that: The conference system also includes one or more of a panel and a power supply. The panel and power supply are both connected to the auxiliary control module, and when the panel and power supply are turned off, the system can switch from working mode to sleep mode.

10. The conference system according to claim 1, characterized in that: The digital microphone is connected to the auxiliary control module via a wake-up GPIO.

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