Wireless network keep-alive low-power-consumption structure and system

Abstract

The utility model relates to a wireless network keep-alive low-power-consumption structure, which is characterized by comprising an MCU, a WI-FI module, an MCU power supply module, a WI-FI power supply module and a system power supply module, the WI-FI module is a WI-FI module with a low-power-consumption keep-alive function, and is electrically connected with the WI-FI power supply module; one pin of a first control IOWI-FI module of the MCU is in communication connection and is used for bidirectional communication with a WI-FI module; the second control IO of the MCU is in communication connection with one pin of the WI-FI module and is used for receiving a wake-up signal of the WI-FI module; a third control IO of the MCU is in communication connection with the WI-FI power supply module and is used for sending a power supply control signal; the fourth control IO of the MCU is connected with the system power supply module to control the on or off of a system power supply; and the MCU is in communication connection with a system CPU through two communication pins. The power consumption of system sleep awakening is greatly reduced through awakening the system by the WI-FI module.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a wireless network keep-alive low-power consumption structure and system. Background Art

[0002] Wireless low-power design technology aims to address battery life and energy efficiency challenges in wireless communication devices. By optimizing transmission protocols, reducing power consumption, and hardware design, it achieves low-power, high-efficiency wireless communication. The line keep-alive low-power design primarily maintains a low-frequency heartbeat after the device goes into sleep mode, enabling remote wakeup without the need for manual wakeup. Existing solutions require the device to remain in standby mode to function. This requires other means to wake the device after sleep, consuming significant power. Utility Model Content

[0003] In order to solve the problem of difficulty in waking up after sleep and high power consumption in traditional communication systems, the present application provides a wireless network keep-alive low-power structure and system.

[0004] To achieve the purpose of this application, a wireless network keep-alive low-power structure is provided, including: an MCU, a Wi-Fi module, an MCU power module, a Wi-Fi power module, and a system power module;

[0005] The WI-FI module is a WI-FI module with a low-power keep-alive function and is electrically connected to the WI-FI power module;

[0006] The first control IO of the MCU is communicatively connected to a pin of the WI-FI module for bidirectional communication with the WI-FI module; the second control IO of the MCU is communicatively connected to a pin of the WI-FI module for receiving a wake-up signal of the WI-FI module; the third control IO of the MCU is communicatively connected to the WI-FI power module for sending a power control signal; and

[0007] The fourth control IO of the MCU is connected to the system power module to control the opening or closing of the system power; and

[0008] The MCU is connected to the system CPU via two communication pins.

[0009] As an implementable embodiment of a low-power keep-alive structure for a wireless network, the WI-FI module is a dual-antenna WI-FI module with a low-power keep-alive function.

[0010] As an implementable method of a low-power consumption structure for keeping a wireless network alive, when the system is in a sleep state, the Wi-Fi module is powered on and maintains a heartbeat at a low frequency.

[0011] As an implementable mode of the low-power consumption structure for keeping the wireless network alive, the MCU does not work when the system is in the sleep state.

[0012] As an implementable mode of the low-power consumption structure for keeping the wireless network alive, the MCU is in communication connection with the CPU through a UART serial port.

[0013] As an implementable mode of the low-power consumption structure for keeping the wireless network alive, the wake-up signal of the WI-FI module to the MCU is a voltage signal of 3.3 V.

[0014] As an implementable mode of the low-power consumption structure for keeping the wireless network alive, the low-power consumption structure further comprises a crystal unit in electrical connection with the WI-FI module.

[0015] As an implementable mode of the low-power consumption structure for keeping the wireless network alive, all control IOs of the MCU are set to low when the system is in the sleep state, and the power supply of the system is in the off state.

[0016] The application further provides a low-power consumption system for keeping the wireless network alive, comprising the low-power consumption structure for keeping the wireless network alive and further comprising a system CPU.

[0017] The system CPU is in communication connection with the MCU through a serial port.

[0018] As an implementable mode of the low-power consumption system for keeping the wireless network alive, when the system is in the sleep state, the WI-FI module is in the power supply state and keeps a low-frequency heartbeat; the MCU and the CPU are in the off state, and the corresponding power supplies of the MCU and the CPU are in the off state.

[0019] The application has the following beneficial effects: the low-power consumption structure for keeping the wireless network alive uses a low-alive WI-FI module to trigger the MCU in the sleep state. After the whole system is in the sleep state, the power supply of the MCU is cut off to achieve the purpose of low power consumption. The WI-FI module that needs to be kept alive keeps a low-frequency heartbeat and wakes up the MCU when needed, and then controls the system CPU through the MCU, so that the whole system achieves the effects of low-power consumption operation and low-power consumption wake-up. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic diagram of a low-power consumption structure for keeping the wireless network alive according to an embodiment of the application;

[0021] Figure 2 is a pin connection schematic diagram of an MCU chip according to an embodiment of the application;

[0022] Figure 3 is Figure 2 is a corresponding MCU power supply module circuit diagram of the corresponding MCU;

[0023] Figure 4 is a pin connection diagram of a WI-FI chip of an embodiment of the present application

[0024] Figure 5 and Figure 6 is Figure 4 a corresponding WI-FI module corresponding WI-FI power module circuit diagram;

[0025] Figure 7 is is Figures 4-6 a corresponding WI-FI module corresponding part of the auxiliary circuit diagram;

[0026] Figure 8 is a system CPU and a corresponding power circuit diagram of an embodiment of the present application. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application.

[0028] Examples of the embodiments are shown in the drawings, wherein the same or similar symbols represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application or simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0030] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0031] In this application, unless otherwise expressly specified and limited, the terms "mounting", "connection", "connecting", "fixing", "engaging", "hinging" and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0032] The technical scheme of the present application is applied to a system with sleep requirements. The system to which the present application is applied is in a working state for part of the time during the overall operation, and the entire system needs to stop running for part of the time, that is, the system needs to be in a non-working state. When the system needs to run, it needs to be able to automatically activate the system, power on the system and execute the corresponding required functions. The implementation of the scheme of the present application is described in detail below with reference to the accompanying drawings.

[0033] Referring to Figure 1 For a specific embodiment of the wireless network keep-alive low-power structure of the present application, the structure includes MCU 100, WI-FI module 200, MCU power module 010, WI-FI power module 020 and system power module 030. Among them, the WI-FI module in the present device is a WI-FI module with low-power keep-alive function, which can keep low-power keep-alive when the entire system does not need to run, can be activated at any time, and can send information outward according to the demand or received signal. The WI-FI module in the structure of the present device is electrically connected with the corresponding WI-FI power module, so as to supply power to the WI-FI module through the WI-FI power module. As shown in Figure 1 The WI-FI power module is connected with the positive electrode of the battery through the VBAT pin, and supplies power to the WI-FI module through the battery.

[0034] Further, in the structure of the present application, the first control IO of the MCU is in communication connection with a pin of the WI-FI module, which is used for bidirectional communication with the WI-FI module; the second control IO of the MCU is in communication connection with a pin of the WI-FI module, which is used for receiving the wake-up signal of the WI-FI module; the third control IO of the MCU is in communication connection with the WI-FI power module, which is used for sending the power control signal; and the fourth control IO of the MCU is connected with the system power module, which controls the opening or closing of the system power. Further, the MCU is in communication connection with the system CPU through two communication pins.

[0035] As Figure 2As shown, in the structure of the application, several control IOs of the MCU include: the power supply enable output corresponding to the third control IO of the WI-FI module is wifi_pwr_en; the first control IO for bidirectional communication with the WI-FI module is wifi_reg_en, and the second control IO for receiving the wake-up signal of the WI-FI module is WIFI wakeup_mcu_3v3. The fourth control IO for controlling the system power supply is sys_pwr_en. The four IOs correspond to the PB5, PB6 and PB4 pins of the MCU chip respectively, and the fourth control IO corresponds to the PA15 pin of the WI-FI module.

[0036] In the scheme of the application, the MCU communicates with the CPU through the UART serial port, which corresponds to PA9 and PA10 of the MCU chip respectively, and corresponds to the serial port USART2_TX and USART2_RX signals for communication with the CPU. In the sleep state of the application, the MCU does not work, all IOs are low, and the wake-up signal of WIFI is monitored.

[0037] The implementation steps of the scheme of the application are as follows: when the system is in a sleep state, the WIFI module controls the power switch of the MCU to be closed, so that the MCU is powered off. At the same time, the WIFI module is in a long power supply state and keeps a low frequency heartbeat. When a user remotely wants to wake up the device, the power switch will be turned on first, and then the wake-up IO will notify the MCU to return to a normal working state from the sleep state. After the MCU is woken up, it performs bidirectional data transmission with the WIFI module through the communication signal.

[0038] And Figure 3 A circuit diagram of the MCU power module corresponding to the MCU in one specific embodiment is shown.

[0039] And as Figure 1 shown, in one specific embodiment, the WI-FI module selects a dual-antenna WI-FI module with a low-power keep-alive function. It can keep low-power operation while maintaining good signal transmission and reception performance in the entire system sleep state, and can receive user signals and activate the MCU when the system needs to be activated.

[0040] Further, in the scheme of the application, when the system is in a sleep state, the WI-FI module is in a power supply state and keeps a low frequency heartbeat. When the system is in a sleep state, the MCU does not work. All control IOs of the MCU are low, and the system power supply is in a closed state. The MCU is connected to the CPU through the UART serial port. The MCU can start the system CPU to work by controlling the opening of the system power supply, and can also communicate with the system CPU through the serial port for bidirectional signal transmission.

[0041] As Figure 4As shown, as an embodiment of the present application, the wakeup signal of the WI-FI module to the MCU is a 3.3V voltage signal. The WI-FI module wakes up the MCU through the wakeup_mcu_3v3 signal, thereby waking up the whole system from sleep.

[0042] As shown, the wireless network keep-alive low-power consumption structure of the present application further comprises a crystal oscillator unit 210 electrically connected with the WI-FI module. Figure 1

[0043] Specifically, Figure 4 is a pin connection diagram of the WI-FI chip of an embodiment of the present application; Figure 5 and Figure 6 is Figure 4 is a corresponding WI-FI module corresponding to a WI-FI power module circuit diagram; Figure 7 is is Figures 4-6 is a corresponding WI-FI module corresponding to a part of auxiliary circuit diagram; Figure 8 is a system CPU and a corresponding power circuit diagram of an embodiment of the present application.

[0044] Based on the same inventive concept, the present application further provides a wireless network keep-alive low-power consumption system, which comprises the wireless network keep-alive low-power consumption structure of any one of the foregoing embodiments, and further comprises a system CPU 300; the system CPU is connected with the MCU through a serial port communication. When the system is in a sleep state, the WI-FI module is in a power supply state, and a low frequency keeps a heartbeat; the MCU and the CPU are in a closed state, and the corresponding power supply of the MCU and the CPU is in a disconnected state. Through the system, the system can be in a low-power consumption state when in a sleep state, and can wake up the whole system to restore system operation through the WI-FI module when needed.

[0045] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", "one specific embodiment" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacement or change according to the technical scheme and concept of the present application within the scope disclosed by the present application, which should be covered in the protection scope of the present application.​

Claims

1. A wireless network keep-alive low-power structure, characterized in that: Including: MCU, Wi-Fi module, MCU power module, Wi-Fi power module and system power module; The WI-FI module is a WI-FI module with a low-power keep-alive function and is electrically connected to the WI-FI power module; The first control IO of the MCU is communicatively connected to a pin of the WI-FI module for bidirectional communication with the WI-FI module; the second control IO of the MCU is communicatively connected to a pin of the WI-FI module for receiving a wake-up signal of the WI-FI module; the third control IO of the MCU is communicatively connected to the WI-FI power module for sending a power control signal; and The fourth control IO of the MCU is connected to the system power module to control the opening or closing of the system power; and The MCU is connected to the system CPU via two communication pins.

2. The wireless network keep-alive low-power consumption structure according to claim 1, characterized in that: The Wi-Fi module is a dual-antenna Wi-Fi module with a low-power keep-alive function.

3. The wireless network keep-alive low-power consumption structure according to claim 1, characterized in that: When the system is in sleep mode, the Wi-Fi module is powered on and maintains a heartbeat at a low frequency.

4. The wireless network keep-alive low-power consumption structure according to claim 3, characterized in that: When the system is in sleep mode, the MCU does not operate.

5. The wireless network keep-alive low-power consumption structure according to claim 1, characterized in that: The MCU is connected to the CPU via a UART serial port communication.

6. The wireless network keep-alive low-power consumption structure according to claim 1, characterized in that: The wake-up signal of the Wi-Fi module to the MCU is a voltage signal connected to 3.

3.

7. The wireless network keep-alive low-power consumption structure according to claim 1, characterized in that: It also includes a crystal oscillator unit electrically connected to the WI-FI module.

8. The wireless network keep-alive low-power consumption structure according to claim 4, characterized in that: When the system is in sleep mode, all control IOs of the MCU are set to low and the system power is turned off.

9. A wireless network keep-alive low-power system, characterized in that: The wireless network keep-alive low-power consumption structure according to any one of claims 1 to 8 further comprises a system CPU; The system CPU is connected to the MCU via serial communication.

10. The wireless network keep-alive low-power consumption system according to claim 9, characterized in that: When the system is in sleep mode, the Wi-Fi module is powered on and maintains a heartbeat at a low frequency; the MCU and the CPU are in shutdown mode, and the corresponding power supplies of the MCU and the CPU are disconnected.

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