Low power standby method and system for a display

Abstract

This invention discloses a low-power standby method and system for a display screen, belonging to the field of electronic technology. The method includes: responding to a standby signal, a co-control network address, and a main control network address acquired by the main control module; comparing the co-control network address and the main control network address; if the co-control network address matches the main control network address, receiving the standby signal to obtain a standby control signal; based on the standby control signal, instructing a signal switching switch to open the network ports of the co-control module and the network switching module, and close the network ports of the main control module and the network switching module; and instructing a power management module to shut down the power supply to the main control module, thereby completing the low-power standby process of the display screen. The method disclosed in this invention can improve the reliability of the display screen's network wake-up function and reduce standby power consumption by shutting down the high-power main control module and transferring control authority to the co-control module.

Description

Technical Field

[0001] This invention belongs to the field of electronic technology, and in particular relates to a low-power standby method for a display screen. Background Technology

[0002] As large-screen display devices become mainstream products in the commercial display field, their power consumption control performance is receiving increasing attention from the industry. Especially in standby mode, different functional configurations place different requirements on the overall power consumption: when Wake-on-LAN (WOL) and wake-on-source functions are enabled, the industry generally requires the overall standby power consumption to be less than 3W; while when only local wake-up methods such as remote control and buttons are retained, the overall standby power consumption needs to be further controlled to within 0.5W.

[0003] In existing technologies, the wired network architecture of large-screen all-in-one PCs typically uses a Layer 2 switch chip (L2SW Controller) with integrated PHY functionality as the network switching module. This module connects to the main processor (SOC) via a network port to achieve gigabit network transmission, and utilizes an external network card chip to expand the port's network access capabilities for network communication. The main processor configures and manages the network switching module via a bus and controls its power supply through an interface to support network wake-up functionality in standby mode. However, in existing technologies, when network wake-up is enabled, the main processor needs to maintain some circuitry to monitor for network interruption signals, making it difficult to reduce the overall standby power consumption below 0.5W, thus failing to meet the technical requirements for low-power standby. Therefore, existing display power control technologies suffer from the technical problems of low reliability of network wake-up functionality and high power consumption in standby mode. Summary of the Invention

[0004] The present invention aims to provide a low-power standby method and system for a display screen to solve the above-mentioned technical problems, improve the reliability of the display screen's network wake-up function, and reduce standby power consumption.

[0005] To address the aforementioned technical problems, this invention provides a low-power standby method for a display screen, applied to a display screen, the display screen including a main control module, a co-control module, a network switching module, a signal switching switch, and a power management module; wherein, the main control module is electrically connected to the signal switching switch, the co-control module, and the network switching module respectively; the co-control module is electrically connected to the signal switching switch; the network switching module is electrically connected to the signal switching switch; the power management module is electrically connected to the main control module and the co-control module respectively; the low-power standby method of the display screen is executed by the co-control module, including: In response to the standby signal, co-control network address, and main control network address obtained by the main control module, the co-control network address and the main control network address are compared: If the cooperative control network address is the same as the master control network address, then the standby signal is received to obtain the standby control signal; Based on the standby control signal, the signal switching switch is instructed to open the network ports of the co-control module and the network switching module, and close the network ports of the main control module and the network switching module. The power management module is then instructed to turn off the power supply to the main control module, thereby completing the low-power standby process of the display screen.

[0006] It should be noted that the network port bandwidth of the co-control module and the network switching module is lower than that of the main control module and the network switching module.

[0007] In the above scheme, in response to the standby signal, co-control network address, and main control network address obtained by the main control module, if the co-control network address is consistent with the main control network address, the standby signal is received to obtain a standby control signal. The standby signal can be specially processed by the co-control module, thereby improving the reliability of the display screen's network wake-up function. Based on the standby control signal, the signal switching switch is set to open the network ports of the co-control module and the network switching module, and close the network ports of the main control module and the network switching module. The power management module is set to turn off the power supply of the main control module. The unnecessary main control module network ports in the standby state can be turned off, so that the network wake-up function can be enabled through the lower bandwidth network ports. By turning off the main control module with high standby power consumption, the standby control authority is transferred to the co-control module to reduce the standby power consumption of the display screen, thereby improving the reliability of the display screen's network wake-up function and reducing standby power consumption.

[0008] Furthermore, the step of comparing the standby signal, the co-control network address, and the main control network address obtained by the main control module further includes: if the co-control network address and the main control network address are inconsistent, then the standby signal is discarded.

[0009] In the above scheme, during the comparison of the co-control network address and the master control network address, if the co-control network address is inconsistent with the master control network address, the standby signal is discarded. The network address verification mechanism can prevent incorrect execution of the standby process due to network address asynchrony, ensuring that the low-power standby process is only allowed when the network addresses of the master control module and the co-control module are consistent. This ensures that the network switching module can identify the wake-up signal based on the correct network address in the standby state, thereby improving the reliability of the display screen's network wake-up function.

[0010] Furthermore, in the step of comparing the cooperative control network address and the main control network address in response to the standby signal, cooperative control network address and main control network address obtained by the main control module, the cooperative control network address is set by the main control module, including: obtaining the main control network address when the display screen is powered on for the first time; and writing the main control network address into the cooperative control module to obtain the cooperative control network address.

[0011] In the above solution, when the display screen is powered on for the first time, the main control network address is obtained and written into the co-control module to obtain the co-control network address. The co-control network address can be set through the main control module, thereby ensuring that the co-control network address is consistent with the main control network address when the display screen is powered on for the first time. This ensures that the co-control network address can be read and compared every time the standby signal is processed, thereby ensuring the consistency between the co-control network address and the main control network address and improving the reliability of the display screen's network wake-up function.

[0012] Furthermore, if the number of times the comparison results between the cooperative control network address and the master control network address are inconsistent exceeds a preset number, the cooperative control network address is modified.

[0013] In the above scheme, modifying the co-control network address when the number of inconsistent comparison results exceeds a preset number can ensure that the co-control network address and the master control network address are synchronized even when the addresses are continuously inconsistent, thereby ensuring the consistency of the comparison between the co-control network address and the master control network address and improving the reliability of the display screen's network wake-up function.

[0014] Furthermore, after completing the low-power standby process, the co-control module reinitializes the registers of the network switching module through the interface of the co-control module.

[0015] Furthermore, after the step of causing the signal switching switch to open the network ports of the co-control module and the network switching module and close the network ports of the main control module and the network switching module based on the standby control signal, and causing the power management module to turn off the power supply of the main control module to complete the low-power standby process of the display screen, the method further includes: responding to the interrupt signal obtained by the network switching module, receiving the interrupt signal to obtain an interrupt control signal; and, based on the interrupt control signal, causing the power management module to turn on the power supply of the main control module, causing the signal switching switch to open the network ports of the main control module and the network switching module, and closing the network ports of the co-control module and the network switching module.

[0016] In the above scheme, in response to the interrupt signal obtained by the network switching module, the interrupt signal is received and an interrupt control signal is obtained. The co-control module can listen for the interrupt signal issued by the network switching module in standby mode, thereby promptly detecting network wake-up requests. Based on the interrupt control signal, the power management module is instructed to turn on the power supply of the main control module, and the signal switching switch is instructed to open the network ports of the main control module and the network switching module, and close the network ports of the co-control module and the network switching module. This restores the power supply of the main control module and switches the network path to the main control module, thereby realizing the wake-up from low-power standby mode to normal working mode, ensuring the reliability of the display screen's network wake-up function, and reducing the standby power consumption of the display screen.

[0017] Furthermore, before receiving the interrupt signal and obtaining the interrupt control signal in response to the interrupt signal acquired by the network switching module, the method further includes: acquiring a wake-up signal and transmitting the wake-up signal to the network switching module through the network port of the co-control module and the network switching module to obtain the interrupt signal.

[0018] In the above scheme, a wake-up signal is acquired and transmitted to the network switching module through the network port of the co-control module and the network switching module. Maintaining connectivity between the network ports of the co-control module and the network switching module in standby mode ensures that the external wake-up signal can be transmitted to the network switching module via the network port to obtain an interrupt signal. The network switching module can identify the wake-up signal and generate an interrupt signal, thereby triggering the co-control module to receive the interrupt signal, realizing the switching of the display screen from low-power standby to normal operation, and improving the reliability of the display screen's network wake-up function.

[0019] This solution also provides a low-power standby system for a display screen, comprising: a main control module, used to acquire a standby signal, a co-control network address, and a main control network address, and compare the co-control network address and the main control network address; if the co-control network address matches the main control network address, then the standby signal is transmitted; a co-control module, used to respond to the standby signal transmitted by the main control module, receive the standby signal to obtain a standby control signal; and based on the standby control signal, cause the signal switching switch to open the network ports of the co-control module and the network switching module, and close the network ports of the main control module and the network switching module, and cause the power management module to turn off the power supply to the main control module; a network switching module, used to communicate with the main control module via the main control module, the network switching module, ... The control module communicates with the main control module via its network port and the network switching module, or communicates with the co-control module via its network port and the network switching module's network port; a signal switching switch module controls the connection and disconnection of the network ports of the main control module and the network switching module, and the network ports of the co-control module and the network switching module; a power management module controls the power supply to the main control module and the co-control module; wherein, the main control module is electrically connected to the signal switching switch, the co-control module, and the network switching module respectively; the co-control module is electrically connected to the signal switching switch; the network switching module is electrically connected to the signal switching switch; and the power management module is electrically connected to the main control module and the co-control module respectively.

[0020] Furthermore, the main control module is used to acquire a standby signal, a co-control network address, and a main control network address, and to compare the co-control network address and the main control network address. It also includes: if the co-control network address and the main control network address are inconsistent, then the standby signal is discarded.

[0021] Furthermore, the main control module is used to acquire a standby signal, a co-control network address, and a main control network address, and to compare the co-control network address and the main control network address. It also includes: acquiring the main control network address when the display screen is powered on for the first time; and writing the main control network address into the co-control module to obtain the co-control network address.

[0022] The above solution provides a clear system architecture with well-defined functional divisions and close collaboration among modules, forming a complete low-power standby control process for the display screen: The main control module first acquires the standby signal, the co-control network address, and the main control network address, comparing the co-control network address and the main control network address to lay the foundation for subsequent standby control signal transmission. If the co-control network address matches the main control network address, the standby signal is transmitted. The co-control module responds to the standby signal transmitted by the main control module, receiving the standby signal to obtain the standby control signal. Based on the standby control signal, the signal switching module controls the connection and disconnection of the network ports between the main control module and the network switching module, and between the co-control module and the network switching module, opening the network ports between the co-control module and the network switching module and closing the network ports between the main control module and the network switching module. Based on the standby control signal, the power management module controls the power supply of the main control module and the co-control module, turning off the power supply of the main control module, thereby completing the low-power standby process of the display screen. The network switching module communicates with the main control module through the network port of the main control module and the network switching module, or communicates with the co-control module through the network port of the co-control module and the network switching module.

[0023] The system provided by the above solution achieves low-power standby of the display screen through the collaborative work of various modules. The main control module ensures that the standby signal is only transmitted when the address of the co-control network matches the address of the main control network, thus guaranteeing the correct execution of the standby process. The co-control module takes over the standby control authority, switches the network path to the network port of the co-control module and the network switching module with lower bandwidth, and shuts down the power supply of the main control module with higher standby power consumption, thereby reducing the standby power consumption of the display screen. The signal switching module transfers the network monitoring task in standby mode by controlling the on / off state of the network port. The power management module achieves precise power management of the main control module by controlling the power supply. The electrical connections of each module can construct a complete low-power standby control architecture. This collaborative mechanism solves the technical problems of low reliability of network wake-up function and high power consumption in standby state in existing display screen power consumption control technology. It does not rely on a high-power main control module to maintain network monitoring, but achieves dynamic power consumption management through the linkage between modules. Ultimately, it achieves the technical effects of improving the reliability of the display screen's network wake-up function and reducing standby power consumption.

[0024] Furthermore, in the co-control module, in response to the standby signal transmitted by the main control module, it receives the standby signal to obtain a standby control signal; and based on the standby control signal, it causes the signal switching switch to open the network ports of the co-control module and the network switching module, and close the network ports of the main control module and the network switching module, and causes the power management module to turn off the power supply of the main control module. The module further includes: in response to an interrupt signal obtained by the network switching module, it receives the interrupt signal to obtain an interrupt control signal; based on the interrupt control signal, it causes the power management module to open the power supply of the main control module, causes the signal switching switch to open the network ports of the main control module and the network switching module, and closes the network ports of the co-control module and the network switching module.

[0025] Furthermore, before receiving the interrupt signal and obtaining the interrupt control signal in response to the interrupt signal acquired by the network switching module, the method further includes: acquiring a wake-up signal and transmitting the wake-up signal to the network switching module through the network port of the co-control module and the network switching module to obtain the interrupt signal.

[0026] In the above scheme, after acquiring the wake-up signal, the co-control module transmits the wake-up signal to the network switching module through the network port to obtain an interrupt signal. The network switching module then converts the acquired interrupt signal into an interrupt control signal and sends it back to the co-control module. This causes the power management module to turn on the power supply to the main control module, and the signal switching switch to open the network ports of the main control module and the network switching module, while closing the network ports of the co-control module and the network switching module. This restores the power supply to the main control module and switches the network path to the main control module, thus achieving wake-up from low-power standby state to normal operating state. The above scheme utilizes the network switching module to identify the wake-up signal and generate an interrupt signal, thereby triggering the co-control module to receive the interrupt signal, realizing the switching of the display screen from low-power standby to normal operating state, and improving the reliability of the display screen's network wake-up function. Attached Figure Description

[0027] Figure 1 This is a schematic flowchart of a low-power standby method for a display screen according to an embodiment of the present invention; Figure 2 A schematic diagram of a low-power standby system architecture for a display screen is provided according to an embodiment of the present invention; Figure 3 A schematic diagram of the circuit connection of a low-power standby system for a display screen is provided in one embodiment of the present invention; The module consists of: 10, main control module; 20, co-control module; 30, network switching module; 40, signal switching switch; and 50, power management module. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1 This embodiment provides a low-power standby method for a display screen, applied to a display screen including a main control module, a co-control module, a network switching module, a signal switching switch, and a power management module; wherein, the main control module is electrically connected to the signal switching switch, the co-control module, and the network switching module respectively; the co-control module is electrically connected to the signal switching switch; the network switching module is electrically connected to the signal switching switch; the power management module is electrically connected to the main control module and the co-control module respectively; the low-power standby method of the display screen is executed by the co-control module, including the following steps: Step S1: In response to the standby signal, co-control network address, and main control network address obtained by the main control module, compare the co-control network address and the main control network address: Step S2: If the cooperative control network address is consistent with the master control network address, then the standby signal is received to obtain the standby control signal; Step S3: Based on the standby control signal, the signal switching switch is instructed to open the network ports of the co-control module and the network switching module, and close the network ports of the main control module and the network switching module. The power management module is instructed to turn off the power supply of the main control module, thereby completing the low-power standby process of the display screen.

[0030] It should be noted that the network port bandwidth of the co-control module and the network switching module is lower than that of the main control module and the network switching module. In this embodiment, the network port bandwidth of the co-control module and the network switching module is 10M, and the network port bandwidth of the main control module and the network switching module is 1000M.

[0031] In this embodiment, in response to the standby signal, co-control network address, and main control network address obtained by the main control module, if the co-control network address is consistent with the main control network address, the standby signal is received to obtain a standby control signal. The standby signal can be specially processed by the co-control module, thereby improving the reliability of the display screen's network wake-up function. Based on the standby control signal, the signal switching switch is set to open the network ports of the co-control module and the network switching module, and close the network ports of the main control module and the network switching module. The power management module is set to turn off the power supply of the main control module. The unnecessary main control module network ports in the standby state can be turned off, so that the network wake-up function can be enabled through the lower bandwidth network ports. By turning off the main control module with high standby power consumption, the standby control authority is transferred to the co-control module to reduce the standby power consumption of the display screen, thereby improving the reliability of the display screen's network wake-up function and reducing standby power consumption.

[0032] Furthermore, the step of comparing the standby signal, the co-control network address, and the main control network address obtained by the main control module further includes: if the co-control network address and the main control network address are inconsistent, then the standby signal is discarded.

[0033] In this embodiment, during the comparison of the co-control network address and the master control network address, if the co-control network address is inconsistent with the master control network address, the standby signal is discarded. This network address verification mechanism prevents incorrect execution of the standby process due to network address asynchrony, ensuring that the low-power standby process is only allowed when the network addresses of the master control module and the co-control module are consistent. This ensures that the network switching module can identify the wake-up signal based on the correct network address in the standby state, thereby improving the reliability of the display screen's network wake-up function.

[0034] Furthermore, in the step of comparing the cooperative control network address and the main control network address in response to the standby signal, cooperative control network address and main control network address obtained by the main control module, the cooperative control network address is set by the main control module, including: obtaining the main control network address when the display screen is powered on for the first time; and writing the main control network address into the cooperative control module to obtain the cooperative control network address.

[0035] In this embodiment, when the display screen is powered on for the first time, the main control network address is obtained and written into the co-control module to obtain the co-control network address. The co-control network address can be set through the main control module, thereby ensuring that the co-control network address is consistent with the main control network address when the display screen is powered on for the first time. This ensures that the co-control network address can be read and compared every time the standby signal is processed, thereby ensuring the consistency between the co-control network address and the main control network address and improving the reliability of the display screen's network wake-up function.

[0036] Furthermore, if the number of times the comparison results between the cooperative control network address and the master control network address are inconsistent exceeds a preset number, the cooperative control network address is modified.

[0037] In this embodiment, modifying the co-control network address when the number of inconsistent comparison results exceeds a preset number ensures that the co-control network address and the master control network address are synchronized even when the addresses are continuously inconsistent. This guarantees the consistency between the co-control network address and the master control network address and improves the reliability of the display screen's network wake-up function.

[0038] Furthermore, after completing the low-power standby process, the co-control module reinitializes the registers of the network switching module through the interface of the co-control module.

[0039] Furthermore, after the step of causing the signal switching switch to open the network ports of the co-control module and the network switching module and close the network ports of the main control module and the network switching module based on the standby control signal, and causing the power management module to turn off the power supply of the main control module to complete the low-power standby process of the display screen, the method further includes: responding to the interrupt signal obtained by the network switching module, receiving the interrupt signal to obtain an interrupt control signal; and, based on the interrupt control signal, causing the power management module to turn on the power supply of the main control module, causing the signal switching switch to open the network ports of the main control module and the network switching module, and closing the network ports of the co-control module and the network switching module.

[0040] In this embodiment, in response to the interrupt signal obtained by the network switching module, the interrupt signal is received and an interrupt control signal is obtained. The co-control module can listen for the interrupt signal issued by the network switching module in standby mode, thereby promptly detecting network wake-up requests. Based on the interrupt control signal, the power management module is instructed to turn on the power supply of the main control module, and the signal switching switch is instructed to open the network ports of the main control module and the network switching module, and close the network ports of the co-control module and the network switching module. This restores the power supply of the main control module and switches the network path to the main control module, thereby realizing the wake-up from low-power standby mode to normal working mode, ensuring the reliability of the display screen's network wake-up function, and reducing the standby power consumption of the display screen.

[0041] Furthermore, before receiving the interrupt signal and obtaining the interrupt control signal in response to the interrupt signal acquired by the network switching module, the method further includes: acquiring a wake-up signal and transmitting the wake-up signal to the network switching module through the network port of the co-control module and the network switching module to obtain the interrupt signal.

[0042] In this embodiment, a wake-up signal is acquired and transmitted to the network switching module via the network port of the co-control module and the network switching module. Maintaining connectivity between the network ports of the co-control module and the network switching module in standby mode ensures that the external wake-up signal can be transmitted to the network switching module via the network port to obtain an interrupt signal. The network switching module can identify the wake-up signal and generate an interrupt signal, thereby triggering the co-control module to receive the interrupt signal, realizing the switching of the display screen from low-power standby to normal operation, and improving the reliability of the display screen's network wake-up function.

[0043] like Figure 2 As shown, this embodiment of the invention also provides a low-power standby system for a display screen, including: a main control module, configured to acquire a standby signal, a co-control network address, and a main control network address, and compare the co-control network address and the main control network address; if the co-control network address matches the main control network address, then the standby signal is transmitted; a co-control module, configured to respond to the standby signal transmitted by the main control module, receive the standby signal to obtain a standby control signal; and based on the standby control signal, instruct the signal switching switch to open the network ports of the co-control module and the network switching module, and close the network ports of the main control module and the network switching module, and instruct the power management module to turn off the power supply to the main control module; and a network switching module, configured to... The main control module communicates with the network switching module via its network port, or communicates with the co-control module via its network port. A signal switching module controls the connection and disconnection of the network ports between the main control module and the network switching module, and between the co-control module and the network switching module. A power management module controls the power supply to the main control module and the co-control module. The main control module is electrically connected to the signal switching module, the co-control module, and the network switching module. The co-control module is electrically connected to the signal switching module. The network switching module is electrically connected to the signal switching module. The power management module is electrically connected to the main control module and the co-control module.

[0044] Furthermore, the main control module is used to acquire a standby signal, a co-control network address, and a main control network address, and to compare the co-control network address and the main control network address. It also includes: if the co-control network address and the main control network address are inconsistent, then the standby signal is discarded.

[0045] Furthermore, the main control module is used to acquire a standby signal, a co-control network address, and a main control network address, and to compare the co-control network address and the main control network address. It also includes: acquiring the main control network address when the display screen is powered on for the first time; and writing the main control network address into the co-control module to obtain the co-control network address.

[0046] The system architecture provided in the above embodiments is logically clear, with well-defined functional divisions and close collaboration among modules, forming a complete low-power standby control process for the display screen: The main control module first acquires the standby signal, the co-control network address, and the main control network address, and compares the co-control network address with the main control network address to lay the foundation for subsequent standby control signal transmission. If the co-control network address matches the main control network address, the standby signal is transmitted. The co-control module responds to the standby signal transmitted by the main control module by receiving the standby signal to obtain the standby control signal. Based on the standby control signal, the signal switching module controls the connection and disconnection of the network ports between the main control module and the network switching module, and between the co-control module and the network switching module, opening the network ports between the co-control module and the network switching module and closing the network ports between the main control module and the network switching module. Based on the standby control signal, the power management module controls the power supply of the main control module and the co-control module, turning off the power supply of the main control module, thereby completing the low-power standby process of the display screen. The network switching module communicates with the main control module through the network port of the main control module and the network switching module, or communicates with the co-control module through the network port of the co-control module and the network switching module.

[0047] The system provided in the above embodiments achieves low-power standby of the display screen through the collaborative work of various modules. The main control module ensures that the standby signal is only transmitted when the address of the co-control network is consistent with that of the main control network, thus guaranteeing the correct execution of the standby process. The co-control module takes over the standby control authority, switches the network path to the network port of the co-control module and the network switching module with lower bandwidth, and shuts down the power supply of the main control module with higher standby power consumption, thereby reducing the standby power consumption of the display screen. The signal switching module transfers the network monitoring task in standby mode by controlling the on / off state of the network port. The power management module achieves precise power management of the main control module by controlling the power supply. The electrical connection of each module can construct a complete low-power standby control architecture. This collaborative mechanism solves the technical problems of low reliability of network wake-up function and high power consumption in standby state in existing display screen power consumption control technology. It does not rely on a high-power main control module to maintain network monitoring, but can achieve dynamic power consumption management through the linkage between modules. Ultimately, it achieves the technical effect of improving the reliability of the display screen's network wake-up function and reducing standby power consumption.

[0048] Furthermore, in the co-control module, in response to the standby signal transmitted by the main control module, it receives the standby signal to obtain a standby control signal; and based on the standby control signal, it causes the signal switching switch to open the network ports of the co-control module and the network switching module, and close the network ports of the main control module and the network switching module, and causes the power management module to turn off the power supply of the main control module. The module further includes: in response to an interrupt signal obtained by the network switching module, it receives the interrupt signal to obtain an interrupt control signal; based on the interrupt control signal, it causes the power management module to open the power supply of the main control module, causes the signal switching switch to open the network ports of the main control module and the network switching module, and closes the network ports of the co-control module and the network switching module.

[0049] Furthermore, before receiving the interrupt signal and obtaining the interrupt control signal in response to the interrupt signal acquired by the network switching module, the method further includes: acquiring a wake-up signal and transmitting the wake-up signal to the network switching module through the network port of the co-control module and the network switching module to obtain the interrupt signal.

[0050] In this embodiment, after acquiring the wake-up signal, the co-control module transmits the wake-up signal to the network switching module through the network port to obtain an interrupt signal. The network switching module then converts the acquired interrupt signal into an interrupt control signal and sends it back to the co-control module. This causes the power management module to turn on the power supply to the main control module, and the signal switching switch to open the network ports of the main control module and the network switching module, while closing the network ports of the co-control module and the network switching module. This restores the power supply to the main control module and switches the network path to the main control module, thus achieving wake-up from a low-power standby state to a normal operating state. The above scheme utilizes the network switching module to identify the wake-up signal and generate an interrupt signal, thereby triggering the co-control module to receive the interrupt signal, realizing the switching of the display screen from a low-power standby process to a normal operating state, and improving the reliability of the display screen's network wake-up function.

[0051] like Figure 3The diagram shown is a circuit connection diagram of a low-power standby system for a display screen provided in this embodiment. In this diagram, the SOC is the main control module, which is a commonly used main processor in the prior art; the MCU is the co-control module; the HWSwitch is the signal switching switch; and the L2SW Controller is the network switching module. GMAC_SW is the GPIO of the HWSwitch connected to the MCU, used to process the standby control signal; HW_E, HW_F, HW_G, and HW_H ports are the network ports between the co-control module and the network switching module, using the signal switching switch as a relay station, and their corresponding port names in the co-control module MCU are MCU_A, MCU_B, MCU_C, and MCU_D, respectively; HW_A, HW_B, HW_C, and HW_D ports are the network ports between the main control module and the network switching module, using the signal switching switch as a relay station, and their corresponding port names in the main control module SOC are SOC_A, SOC_B, SOC_C, and SOC_D, respectively; HW_1, HW_2, HW_3, and HW_4 ports are the network ports between the signal switching switch and the network switching module, and their corresponding port names in the network switching module are LC_A, LC_B, LC_C, and LC_D, respectively.

[0052] In this embodiment, when the MCU receives a standby control signal, GMAC_SW outputs a high level, controlling the HW Switch to open ports HW_E, HW_F, HW_G, and HW_H, so as to communicate with the co-control module through the network ports of the co-control module and the network switching module, thereby achieving low-power network monitoring with a bandwidth of 10M; when the MCU receives an interrupt control signal, GMAC_SW outputs a low level, controlling the HW Switch to open ports HW_A, HW_B, HW_C, and HW_D, so as to communicate with the main control module through the network ports of the main control module and the network switching module, thereby achieving a network communication connection with a bandwidth of 1000M.

[0053] It should be noted that after the display screen completes its low-power standby process, the MCU can receive other external network signals, thus enabling IP-232 functionality. Furthermore, when the co-control module receives the interrupt control signal transmitted by the network switching module, the function implemented by the interrupt control signal can be customized via software as needed.

[0054] In this embodiment, after the main control module is powered off, the co-control module detects remote control signals, button signals and signal source switching signals through its own GPIO port to support the local wake-up function in standby mode.

[0055] Furthermore, the power management circuit of the display screen also includes an LDO chip and a power control port. The enable terminal of the LDO chip is connected to the GPIO port of the co-control module to receive the power control signal output by the power control port, and the output terminal is connected to the power pin interface of the network switching module. When the main control module is in normal working state, the co-control module controls the power control port to output a high level, and the LDO chip outputs a 1.8V voltage to match the level of the network port between the main control module and the network switching module, i.e., the RGMII interface level. When the main control module enters standby state, the co-control module controls the power control port to output a low level, and the LDO chip outputs a 3.3V voltage to match the level of the network port between the co-control module and the network switching module, i.e., the RMII interface level.

[0056] In this embodiment, the co-control module can also control the working state of the LDO chip. In standby mode, the network switching module is turned off to shut down the output of the LDO chip, so as to control the standby power consumption of the whole machine to within 0.5W, thereby further reducing the standby power consumption of the display screen.

[0057] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A low-power standby method for a display screen, characterized in that, An application is made to a display screen, the display screen including a main control module, a co-control module, a network switching module, a signal switching switch, and a power management module; wherein, the main control module is electrically connected to the signal switching switch, the co-control module, and the network switching module respectively; the co-control module is electrically connected to the signal switching switch; the network switching module is electrically connected to the signal switching switch; the power management module is electrically connected to the main control module and the co-control module respectively; the low-power standby method of the display screen is executed by the co-control module, including: In response to the standby signal, co-control network address, and main control network address obtained by the main control module, the co-control network address and the main control network address are compared: If the cooperative control network address is the same as the master control network address, then the standby signal is received to obtain the standby control signal; Based on the standby control signal, the signal switching switch is instructed to open the network ports of the co-control module and the network switching module, and close the network ports of the main control module and the network switching module. The power management module is then instructed to turn off the power supply to the main control module, thereby completing the low-power standby process of the display screen.

2. The low-power standby method for a display screen according to claim 1, characterized in that, The step of responding to the standby signal, the co-control network address, and the main control network address obtained by the main control module, and comparing the co-control network address and the main control network address, further includes: If the co-control network address is inconsistent with the master control network address, the standby signal is discarded.

3. A low-power standby method for a display screen according to claim 2, characterized in that, In the process of responding to the standby signal, the co-control network address, and the main control network address obtained by the main control module, and comparing the co-control network address and the main control network address, the co-control network address is set by the main control module, including: When the display screen is powered on for the first time, the main control network address is obtained; The master control network address is written into the co-control module to obtain the co-control network address.

4. A low-power standby method for a display screen according to claim 1, characterized in that, After the standby control signal is used to enable the network ports of the co-control module and the network switching module by the signal switching switch, and disable the network ports of the main control module and the network switching module, and to enable the power management module to shut off the power supply to the main control module, thereby completing the low-power standby process of the display screen, the method further includes: In response to the interrupt signal obtained by the network switching module, the interrupt signal is received to obtain an interrupt control signal; Based on the interrupt control signal, the power management module is instructed to turn on the power supply to the main control module, and the signal switching switch is instructed to open the network ports of the main control module and the network switching module, and close the network ports of the co-control module and the network switching module.

5. A low-power standby method for a display screen according to claim 4, characterized in that, Before receiving the interrupt signal and obtaining the interrupt control signal in response to the interrupt signal acquired by the network switching module, the method further includes: A wake-up signal is acquired and transmitted to the network switching module through the network port of the co-control module and the network switching module to obtain an interrupt signal.

6. A low-power standby system for a display screen, characterized in that, include: The main control module is used to acquire the standby signal, the co-control network address, and the main control network address, and compare the co-control network address and the main control network address: if the co-control network address is consistent with the main control network address, then the standby signal is transmitted; The co-control module is used to respond to the standby signal transmitted by the main control module, receive the standby signal to obtain a standby control signal; and based on the standby control signal, cause the signal switching switch to open the network port of the co-control module and the network switching module, and close the network port of the main control module and the network switching module, and cause the power management module to turn off the power supply of the main control module. The network switching module is used to communicate with the main control module through the network port of the main control module and the network switching module, or to communicate with the co-control module through the network port of the co-control module and the network switching module. A signal switching module is used to control the connection and disconnection of the network ports between the main control module and the network switching module, and between the co-control module and the network switching module. A power management module is used to control the power supply of the main control module and the co-control module; The main control module is electrically connected to the signal switching switch, the co-control module, and the network switching module, respectively; the co-control module is electrically connected to the signal switching switch; the network switching module is electrically connected to the signal switching switch; and the power management module is electrically connected to the main control module and the co-control module, respectively.

7. A low-power standby system for a display screen according to claim 6, characterized in that, The main control module is used to acquire standby signal, cooperative control network address, and main control network address, and compare the cooperative control network address and the main control network address. It also includes: If the co-control network address is inconsistent with the master control network address, the standby signal is discarded.

8. A low-power standby system for a display screen according to claim 7, characterized in that, The main control module is used to acquire standby signal, cooperative control network address, and main control network address, and compare the cooperative control network address and the main control network address. It also includes: When the display screen is powered on for the first time, the main control network address is obtained; The master control network address is written into the co-control module to obtain the co-control network address.

9. A low-power standby system for a display screen according to claim 6, characterized in that, The co-control module is configured to respond to the standby signal transmitted by the main control module, receive the standby signal to obtain a standby control signal; and based on the standby control signal, cause the signal switching switch to open the network ports of the co-control module and the network switching module, and close the network ports of the main control module and the network switching module, and cause the power management module to turn off the power supply of the main control module, and further include: In response to the interrupt signal obtained by the network switching module, the interrupt signal is received to obtain an interrupt control signal; Based on the interrupt control signal, the power management module is instructed to turn on the power supply to the main control module, and the signal switching switch is instructed to open the network ports of the main control module and the network switching module, and close the network ports of the co-control module and the network switching module.

10. A low-power standby system for a display screen according to claim 9, characterized in that, Before receiving the interrupt signal and obtaining the interrupt control signal in response to the interrupt signal acquired by the network switching module, the method further includes: A wake-up signal is acquired and transmitted to the network switching module through the network port of the co-control module and the network switching module to obtain an interrupt signal.

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