A mobile phone screen-on and remote control device and method

Abstract

The application discloses a mobile phone screen brightening and remote control device and method, and belongs to the technical field of electronic equipment control. The device comprises a control module, a serial port module, a power module and an interface unit. The control module is integrated with a Bluetooth communication unit and a micro control unit, and is configured with an HID function; the micro control unit is used for generating instructions or reports conforming to the HID protocol. The control module establishes an HID connection with a target mobile phone through the Bluetooth communication unit, so that the target mobile phone is identified as an HID input device; in the screen brightening mode, displacement instructions are periodically sent to prevent sleep or screen locking; in the remote control mode, the control module receives a host computer control instruction, analyzes and converts the instruction into an HID operation instruction, and then sends the instruction to the target mobile phone. The application has the functions of screen brightening and remote control, and has low power consumption, strong compatibility and convenient operation.

Description

Technical Field

[0001] This invention relates to the field of electronic device control technology, and in particular to a mobile phone screen lighting and remote control device and method. Background Technology

[0002] When performing data collection and other operations on a mobile phone, it is often necessary to keep the phone screen on continuously. However, the power-saving mechanism of the mobile phone system will cause the central processing unit to reduce its frequency or even go into sleep mode. At the same time, the relevant operations need to be manually performed according to the prompts, which affects the speed and efficiency of data collection.

[0003] Currently, the common way to keep the screen always on is to adjust the screen sleep time in the phone's system settings. However, this method keeps the screen on throughout the entire usage period, even when the user doesn't need to check the screen, causing unnecessary power consumption. Some third-party applications prevent the screen from sleeping by continuously occupying system resources, but this may cause compatibility issues and affect phone performance, and it's difficult to implement on some operating system devices with limited permissions.

[0004] Meanwhile, in multi-device collaboration scenarios, users often need to remotely control their mobile phones via a host computer to perform operations such as taking screenshots, swiping the screen, and simulating clicks. Existing solutions mostly rely on wired connections or dedicated software, which suffer from cumbersome operation, poor compatibility, and high latency. Furthermore, when connecting the host computer and the mobile phone via a wired connection, the operation is cumbersome and the latency is high. Therefore, how to provide a mobile phone auxiliary control solution that integrates always-on screen and remote control functions with low power consumption is a technical problem that needs to be solved in this field. Summary of the Invention

[0005] The purpose of this invention is to provide a mobile phone screen-on and remote control device and method that integrates the always-on screen function with the host computer's remote control function into a single device. This eliminates the need for installing additional applications on the target mobile phone and for a direct wired connection between the host computer and the target mobile phone. Furthermore, it reduces overall power consumption and improves applicability across various scenarios through Bluetooth communication and an on-demand triggering control mechanism. The specific solution is as follows: In a first aspect, the present invention discloses a mobile phone screen lighting and remote control device, including a control module, a serial port module, a power supply module and an interface unit; The control module integrates a Bluetooth communication unit and a microcontroller unit. The control module is configured with HID (Human Machine Interface) functionality. The microcontroller unit is configured to generate instructions or reports conforming to the HID protocol. The control module is configured to establish an HID connection with the target mobile phone via the Bluetooth communication unit, enabling the target mobile phone to recognize the control module as an HID input device. In screen-on mode, it sends displacement commands to the target mobile phone at preset intervals to prevent the target mobile phone from entering sleep or screen-locked states. In remote control mode, it receives control commands from a host computer, parses and converts the control commands into operation commands conforming to the HID protocol, and sends the operation commands to the target mobile phone via the Bluetooth communication unit, enabling the target mobile phone to perform the operation corresponding to the operation command. The serial port module is connected to the host computer and the control module respectively, and is configured to convert the Universal Serial Bus (USB) data signal of the host computer into a Universal Asynchronous Receiver / Transmitter (UART) signal, so as to transmit the control command and the information fed back by the control module between the host computer and the control module. The power module is connected to the control module and the serial port module via a power supply line and is configured to convert the input voltage into the operating voltage of each module in the device. The interface unit is configured to access the USB data signal and / or the power supply voltage.

[0006] Furthermore, the control module includes a Bluetooth control chip, and the Bluetooth communication unit and the microcontroller unit are integrated within the Bluetooth control chip; the microcontroller unit includes a processor core and is configured to perform instruction parsing and HID report generation.

[0007] Furthermore, in the screen-on mode, the control module is configured to: set a timer interrupt via the timer of the microcontroller unit; and each time the timer interrupt is triggered, send a first displacement command to the target mobile phone according to the HID protocol, and after sending the first displacement command, send a second displacement command to the target mobile phone in the opposite direction to the first displacement command, so as to reset the pointer position corresponding to the HID input device.

[0008] Furthermore, the displacement amount corresponding to the first displacement command is equal to the displacement amount corresponding to the second displacement command, and the period of the timer interrupt is a preset duration.

[0009] Further, in the remote control mode, the control module is configured to: receive the control instructions encapsulated by the host computer according to a preset communication protocol; parse the control instructions according to the preset communication protocol to obtain the instruction type and parameter information corresponding to the instruction type; generate an HID report conforming to the HID protocol based on the instruction type and the parameter information; and send the HID report to the target mobile phone via the Bluetooth communication unit so that the target mobile phone performs an operation corresponding to the HID report; wherein, the instruction type includes at least one of screenshot, swipe, and click, and the parameter information includes at least one of swipe direction and operation coordinates; the HID report includes a HID mouse report and / or a HID keyboard report; when the instruction type is screenshot, the control module generates an HID report corresponding to a preset screenshot operation; when the instruction type is swipe or click, the control module generates an HID mouse report containing displacement information, key status information, and / or coordinate mapping information.

[0010] Furthermore, the control module is also configured to: in the screen-on mode, in response to receiving the control command sent by the host computer, switch to the remote control mode and execute the operation corresponding to the control command; after the operation corresponding to the control command is executed, return to the screen-on mode.

[0011] Furthermore, the device also includes an encryption module connected to the control module and configured to protect the data stored inside the microcontroller unit.

[0012] Furthermore, the power module includes a low-dropout linear regulator (LDO), which is configured to convert a first voltage input via the interface unit into a second voltage and supply power to each module in the device; the interface unit is a Type-C interface, which is configured to connect to the host computer via a data cable in the remote control mode to transmit the USB data signal, and to serve as a power supply interface for receiving the power supply voltage in the screen-on mode.

[0013] Secondly, this invention discloses a method for mobile phone screen lighting and remote control, applied to the mobile phone screen lighting and remote control device described in any of the above claims, comprising: The control module establishes an HID connection with the target mobile phone through the Bluetooth communication unit, so that the target mobile phone recognizes the control module as an HID input device. In screen-on mode, the control module sends displacement commands to the target mobile phone at a preset cycle to prevent the target mobile phone from entering sleep or screen-locked state; In remote control mode, the control module receives control commands sent by the host computer, parses the control commands and converts them into operation commands that conform to the HID protocol, and then sends the operation commands to the target mobile phone through the Bluetooth communication unit so that the target mobile phone can perform the operation corresponding to the operation commands.

[0014] Furthermore, the method further includes: in the screen-on mode, in response to receiving the control command sent by the host computer, switching to the remote control mode and performing the operation corresponding to the control command; after the operation corresponding to the control command is completed, returning to the screen-on mode.

[0015] Therefore, the present invention has the following beneficial effects: This invention integrates the always-on screen function with remote control functionality into a single device, eliminating the need for additional applications on the target mobile phone and a direct wired connection between the host computer and the target phone, thus improving applicability across multiple scenarios. The combination of Bluetooth communication and a timed wake-up mechanism allows remote control commands to be triggered on demand, resulting in lower overall power consumption compared to solutions that continuously consume system resources. Based on the universal HID protocol, it is compatible with most smartphones and various host computer operating systems. Host computer control requires no complex configuration; the device can adapt to the operating logic of different mobile phones, allowing users to intuitively perform remote control. The control module's built-in microcontroller's timing and command parsing mechanisms ensure continuous and reliable screen-on functionality and low remote control response latency. Attached Figure Description

[0016] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of the invention. Other embodiments and many anticipated advantages of the embodiments will be readily recognized as they become better understood through reference to the following detailed description. Elements in the drawings are not necessarily to scale. The same reference numerals refer to corresponding similar parts.

[0017] Figure 1 This is a schematic diagram of the structure of a mobile phone screen-on and remote control device disclosed in this invention; Figure 2 This is a flowchart of a mobile phone screen-on and remote control method disclosed in this invention. Detailed Implementation

[0018] 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 a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] This invention discloses a mobile phone screen-on and remote control device and method, which integrates the screen-on function with the host computer remote control function into the same device, and features low power consumption, strong compatibility and convenient operation.

[0020] See Figure 1 As shown in the figure, this invention discloses a mobile phone screen-on and remote control device, including a control module 1, a serial port module 2, a power module 3, and an interface unit 4. The interface unit 4 is used to connect to a charger or a host computer. The interface unit 4 is connected to the serial port module 2, which is connected to the control module 1 via transceiver pins. The power module 3 is connected to both the control module 1 and the serial port module 2 via a power supply line and is configured to convert the input voltage into the operating voltage of each module in the device. In one specific embodiment, the device further includes an encryption module 5, which is connected to the control module 1. When the device includes the encryption module 5, the power module 3 can also be connected to the encryption module 5 via a power supply line.

[0021] The control module 1 integrates a Bluetooth communication unit 11 and a microcontroller unit 12. The control module 1 is configured with HID (Human Machine Interface) functionality, and the microcontroller unit 12 is used to generate instructions or reports conforming to the HID protocol. In this embodiment, the control module 1 can be a Bluetooth control chip with an integrated processor core. The Bluetooth communication unit 11 and the microcontroller unit 12 are integrated into the same Bluetooth control chip, allowing the Bluetooth communication unit 11 to handle Bluetooth communication tasks, and the microcontroller unit 12 to handle tasks such as instruction parsing and HID report generation, thereby reducing reliance on external chips and minimizing device size. The processor core can be a general-purpose low-power processor core; this invention does not limit its use.

[0022] Control module 1 is configured to establish an HID connection with a target mobile phone via Bluetooth communication unit 11, enabling the target mobile phone to recognize control module 1 as an HID input device, such as a mouse or keyboard. After establishing the HID connection, control module 1 can operate in either screen-on mode or remote control mode. In screen-on mode, control module 1 sends displacement commands to the target mobile phone at preset intervals to prevent the target mobile phone from entering sleep or screen-locked states. In remote control mode, control module 1 receives control commands sent by a host computer, parses the control commands, converts them into operation commands conforming to the HID protocol, and sends the operation commands to the target mobile phone via Bluetooth communication unit 11, so that the target mobile phone performs the operation corresponding to the operation command, such as taking a screenshot, swiping, or clicking.

[0023] Serial port module 2 is connected to both the host computer and control module 1, and is configured to convert the host computer's Universal Serial Bus (USB) data signals into Universal Asynchronous Receiver / Transmitter (UART) signals to transmit control commands and feedback information from control module 1 between the host computer and control module 1. The host computer sends commands to microcontroller unit 12, receives feedback information from microcontroller unit 12, and provides corresponding prompts. In this embodiment, the host computer can be a personal computer or other electronic device with a USB interface.

[0024] Power module 3 is connected to control module 1 and serial port module 2 via power supply lines and is configured to convert the input voltage into the operating voltage of each module in the device. In one specific embodiment, power module 3 includes a low-dropout linear regulator (LDO), which converts the first voltage input via interface unit 4 into a second voltage and supplies power to each module in the device to ensure normal operation of each module. For example, the 5V voltage input via interface unit 4 is converted to 3.3V by the LDO and used to supply power to each module.

[0025] Interface unit 4 is configured to receive USB data signals and / or power supply voltage. In one specific embodiment, interface unit 4 is a TYPE-C interface. When the device is operating in remote control mode, the TYPE-C interface is connected to the host computer via a data cable to transmit USB data signals; when the device is operating in screen-on mode, the TYPE-C interface serves as a power supply interface, receiving power supply voltage, for example, by connecting to a charger or the host computer's USB interface to power the entire device.

[0026] In one specific embodiment, the device further includes an encryption module 5. The encryption module 5 is connected to the control module 1 and is configured to protect the data stored internally in the microcontroller unit 12 to prevent the data stored internally in the microcontroller unit 12 from being illegally read or tampered with, thereby ensuring data security and the normal operation of the device.

[0027] See Figure 2 As shown, this embodiment of the invention discloses the workflow of the above-mentioned device. In this workflow, after the device completes initialization and Bluetooth pairing, the microcontroller unit 12 generates a periodic trigger signal for the screen-on mode via a timer, and determines whether a control command sent by the host computer is received by receiving events through the serial port, thereby selecting between remote control mode and screen-on mode to achieve seamless integration of the two functions. Specifically, it includes the following steps: Step S1: Initialization. Connect interface unit 4 to the USB port of the charger or host computer via a connecting cable to power the entire device. The control module 1 is then powered on and initialized. When the device is operating in remote control mode, interface unit 4 is connected to the USB port of the host computer via a data cable. Simultaneously, the USB data signal is converted into a UART signal via serial port module 2 to establish a communication connection with the microcontroller unit 12 of control module 1, and Bluetooth enters a connectable state.

[0028] Step S2: Bluetooth pairing and connection between the mobile phone and the control module. The target mobile phone searches for the Bluetooth of the control module 1 and pairs and connects with it to establish a stable HID connection. The target mobile phone recognizes the control module 1 as an HID input device, such as a mouse or keyboard.

[0029] Step S3: Timer Interrupt and Instruction Judgment. The microcontroller unit 12 generates a periodic trigger signal for the screen-on mode through a timer and determines whether a control command sent by the host computer is received by receiving events through the serial port. When a control command sent by the host computer is received, it first enters the remote control mode and executes steps S4 to S10. When no control command is received from the host computer and the timer triggers, it enters the screen-on mode and executes steps S11 to S13. In other words, when the microcontroller unit 12 receives a command from the host computer, it first executes the remote control operation; after the operation corresponding to the control command is completed, it returns to the screen-on mode, thus ensuring both the continuous screen illumination and meeting the user's need to remotely control the mobile phone through the host computer.

[0030] Step S4: Enter remote control mode. In response to the determination in step S3 that a control command sent by the host computer has been received, control module 1 enters remote control mode.

[0031] Step S5: The host computer sends control commands. The host computer encapsulates control commands, such as screenshot and sliding commands, according to a preset communication protocol, and encapsulates the control commands according to a specific byte sequence and data format, and sends them to the microcontroller unit 12 of the control module 1 via the serial port module 2.

[0032] Step S6: Receive and parse the command. The microcontroller unit 12 of the control module 1 receives the control command sent by the host computer and parses the control command according to the preset communication protocol to obtain the command type and the parameter information corresponding to the command type. For example, it identifies whether the command type is screenshot, swipe, or click, and the related parameter information, such as swipe direction and operation coordinates. The command type includes at least one of screenshot, swipe, and click, and the parameter information includes at least one of swipe direction and operation coordinates.

[0033] Step S7: Convert to the corresponding HID report, generated by the microcontroller unit. The microcontroller unit 12 generates an HID report conforming to the HID protocol according to the instruction type and parameter information, following the specifications of the HID protocol. The HID report includes a HID mouse report and / or a HID keyboard report. When the instruction type is screenshot, the control module 1 generates an HID report corresponding to a preset screenshot operation, such as a system-defined shortcut operation to trigger a screenshot. When the instruction type is swipe or click, the control module 1 generates an HID mouse report containing displacement information, key status information, and / or coordinate mapping information based on parameters such as operation coordinates. The coordinate mapping information is used to convert the operation coordinates input from the host computer into HID coordinates or relative displacement that the target mobile phone can recognize; for example, the microcontroller unit 12 determines the corresponding HID displacement or click position based on the target mobile phone screen size, HID coordinate range, and the proportional relationship between the operation coordinates.

[0034] Step S8: Send the generated HID report to the mobile phone via Bluetooth. The microcontroller unit 12 sends the generated HID report to the Bluetooth communication unit 11 of the control module 1, and the Bluetooth communication unit 11 sends the HID report to the target mobile phone using the HID protocol.

[0035] Step S9: The mobile phone executes the corresponding operation according to the instruction. After the target mobile phone recognizes the HID report, it executes the corresponding operation according to the instruction requirements, such as taking a screenshot, swiping, or clicking, thereby realizing remote control of the target mobile phone interface.

[0036] Step S10: Complete the command operation on the mobile phone. After the target mobile phone completes the operation corresponding to the control command, the remote control operation ends, and the control module 1 returns to the screen-on mode.

[0037] Step S11: Enter screen-on mode. In response to the determination in step S3 that no control command has been received from the host computer, control module 1 enters screen-on mode.

[0038] Step S12: Send the first displacement command. Control module 1 sends the first displacement command to the target mobile phone according to the HID protocol, for example, sending a first displacement command to move the pointer 2 dpi to the right.

[0039] Step S13: Send a second displacement command. After sending the first displacement command, the control module 1 sends a second displacement command in the opposite direction to the first displacement command to the target mobile phone, for example, sending a second displacement command to shift the pointer 2 dpi to the left, so that the pointer position corresponding to the HID input device is reset. In one specific embodiment, the displacement amount corresponding to the first displacement command is equal to the displacement amount corresponding to the second displacement command. This tiny, periodic displacement operation is sufficient to be detected as an active state by the target mobile phone, thereby preventing the target mobile phone from automatically locking and turning off the screen, and keeping the screen always on.

[0040] It should be noted that the timer in step S3 above is used to trigger the periodic displacement operation in the screen-on mode, and the serial port receiving event is used to determine whether it is necessary to enter the remote control mode. Therefore, the device keeps the target mobile phone screen on when it does not receive a control command from the host computer, and responds promptly and executes the remote control operation when it receives a control command from the host computer. After the operation is completed, the screen automatically returns to on.

[0041] Based on the above-described device, this invention also discloses a mobile phone screen-on and remote control method, applicable to any of the aforementioned mobile phone screen-on and remote control devices, comprising: a control module 1 establishing an HID connection with a target mobile phone via a Bluetooth communication unit 11, so that the target mobile phone recognizes the control module 1 as an HID input device; in screen-on mode, the control module 1 sends displacement commands to the target mobile phone according to a preset cycle to prevent the target mobile phone from entering a sleep or screen-locked state; in remote control mode, the control module 1 receives control commands sent by a host computer, parses the control commands and converts them into operation commands conforming to the HID protocol, and then sends the operation commands to the target mobile phone via the Bluetooth communication unit 11, so that the target mobile phone performs the operation corresponding to the operation command. The method further comprises: in screen-on mode, in response to receiving a control command sent by a host computer, switching to remote control mode and performing the operation corresponding to the control command; after the operation corresponding to the control command is completed, returning to screen-on mode. The specific implementation of each step in the method embodiment corresponds to that in the above-described device embodiment; relevant details can be found in the device section description.

[0042] Therefore, this embodiment of the invention, through the Bluetooth module of the built-in microcontroller unit 12, utilizes the HID protocol to be recognized as an HID input device by the target mobile phone. On one hand, it performs periodic micro-displacement operations on the target mobile phone, causing the target mobile phone to determine that there is activity, thereby maintaining a continuously lit screen. On the other hand, the host computer sends control commands to the microcontroller unit 12 of the control module 1. The microcontroller unit 12 parses the control commands, converts them into operation commands conforming to the HID protocol, and sends them to the target mobile phone. The target mobile phone receives the operation commands and automatically performs operations such as screenshotting, swiping, and clicking, reducing manual intervention and improving the speed and efficiency of related operations, thus having high practical value. The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to mutually. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively brief, and the relevant parts can be referred to the method section description.

[0043] Those skilled in the art will further recognize that the modules and method steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can implement the described functions using different methods for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0044] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply an actual relationship or order between these entities or operations. The terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to the process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0045] The present invention provides a detailed description of a mobile phone screen-on and remote control device and method. Specific embodiments have been used to illustrate the principles and implementation of the invention. These embodiments are provided solely to aid in understanding the method and core concepts of the invention. Furthermore, those skilled in the art will recognize that variations in implementation methods and application scope may occur based on the ideas of the invention. Therefore, the content of this specification should not be construed as a limitation of the invention.

Claims

1. A mobile phone screen-on and remote control device, characterized in that, It includes a control module, a serial port module, a power supply module, and an interface unit; The control module integrates a Bluetooth communication unit and a microcontroller unit. The control module is configured with HID (Human Machine Interface) functionality. The microcontroller unit is configured to generate instructions or reports conforming to the HID protocol. The control module is configured to establish an HID connection with the target mobile phone via the Bluetooth communication unit, enabling the target mobile phone to recognize the control module as an HID input device. In screen-on mode, it sends displacement commands to the target mobile phone at preset intervals to prevent the target mobile phone from entering sleep or screen-locked states. In remote control mode, it receives control commands from a host computer, parses and converts the control commands into operation commands conforming to the HID protocol, and sends the operation commands to the target mobile phone via the Bluetooth communication unit, enabling the target mobile phone to perform the operation corresponding to the operation command. The serial port module is connected to the host computer and the control module respectively, and is configured to convert the Universal Serial Bus (USB) data signal of the host computer into a Universal Asynchronous Receiver / Transmitter (UART) signal, so as to transmit the control command and the information fed back by the control module between the host computer and the control module. The power module is connected to the control module and the serial port module via a power supply line and is configured to convert the input voltage into the operating voltage of each module in the device. The interface unit is configured to access the USB data signal and / or the power supply voltage.

2. The mobile phone screen-on and remote control device according to claim 1, characterized in that, The control module includes a Bluetooth control chip, and the Bluetooth communication unit and the microcontroller unit are integrated within the Bluetooth control chip; the microcontroller unit includes a processor core and is configured to perform instruction parsing and HID report generation.

3. The mobile phone screen-on and remote control device according to claim 1, characterized in that, In the screen-on mode, the control module is configured to: A timer interrupt can be set via the timer of the microcontroller unit; Each time the timer interrupt is triggered, a first displacement command is sent to the target mobile phone according to the HID protocol, and after sending the first displacement command, a second displacement command in the opposite direction to the first displacement command is sent to the target mobile phone to reset the pointer position corresponding to the HID input device.

4. The mobile phone screen-on and remote control device according to claim 3, characterized in that, The displacement amount corresponding to the first displacement command is equal to the displacement amount corresponding to the second displacement command, and the period of the timer interrupt is a preset duration.

5. The mobile phone screen-on and remote control device according to claim 1, characterized in that, In the remote control mode, the control module is configured to: Receive the control commands encapsulated by the host computer according to a preset communication protocol; The control command is parsed according to the preset communication protocol to obtain the command type and the parameter information corresponding to the command type; Generate an HID report conforming to the HID protocol based on the instruction type and parameter information; The HID report is sent to the target mobile phone via the Bluetooth communication unit, so that the target mobile phone performs the operation corresponding to the HID report; The instruction type includes at least one of screenshot, swipe, and click, and the parameter information includes at least one of swipe direction and operation coordinates; The HID report includes a HID mouse report and / or a HID keyboard report; when the instruction type is screenshot, the control module generates an HID report corresponding to the preset screenshot operation; when the instruction type is swipe or click, the control module generates an HID mouse report containing displacement information, key status information and / or coordinate mapping information.

6. The mobile phone screen-on and remote control device according to claim 1, characterized in that, The control module is also configured to: In the screen-on mode, in response to receiving the control command sent by the host computer, the system switches to the remote control mode and performs the operation corresponding to the control command. After the operation corresponding to the control command is completed, the screen will return to the on-screen mode.

7. The mobile phone screen-on and remote control device according to claim 1, characterized in that, The device also includes an encryption module connected to the control module and configured to protect the data stored inside the microcontroller unit.

8. The mobile phone screen-on and remote control device according to claim 1, characterized in that, The power module includes a low-dropout linear regulator (LDO) configured to convert a first voltage input via the interface unit into a second voltage and supply power to the modules in the device. The interface unit is a TYPE-C interface, which is configured to connect to the host computer via a data cable in the remote control mode to transmit the USB data signal, and to serve as a power supply interface for receiving power supply voltage in the screen-on mode.

9. A method for activating and remotely controlling a mobile phone screen using the mobile phone screen activation and remote control device as described in any one of claims 1 to 8, characterized in that, include: The control module establishes an HID connection with the target mobile phone through the Bluetooth communication unit, so that the target mobile phone recognizes the control module as an HID input device. In screen-on mode, the control module sends displacement commands to the target mobile phone at a preset cycle to prevent the target mobile phone from entering sleep or screen-locked state; In remote control mode, the control module receives control commands sent by the host computer, parses the control commands and converts them into operation commands that conform to the HID protocol, and then sends the operation commands to the target mobile phone through the Bluetooth communication unit so that the target mobile phone can perform the operation corresponding to the operation commands.

10. The mobile phone screen-on and remote control method according to claim 9, characterized in that, Also includes: In the screen-on mode, in response to receiving the control command sent by the host computer, the system switches to the remote control mode and performs the operation corresponding to the control command. After the operation corresponding to the control command is completed, the screen will return to the on-screen mode.

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