Data transmission control method and system

Abstract

The invention relates to a data transmission control method and system. The system comprises a mobile control terminal; the sending device is used for transmitting data through a wired network; the switch is respectively connected with the transmitting device and the receiving device through network cables; the mobile control terminal and the plurality of receiving devices are accessed to the same local area network; the mobile control terminal performs pairing authentication by scanning the two-dimensional code displayed by the receiving device or inputting the ID number corresponding to the receiving device; after successful pairing, the mobile control terminal displays a selectable receiving device list; a user selects a target receiving device and local storage data to be transmitted through a display interface of the mobile control terminal; according to the invention, the problems of the traditional scheme in the aspects of safety, efficiency, management flexibility and the like are solved, the operation convenience, the system stability and the operation and maintenance efficiency in a multi-terminal cooperation scene are remarkably improved, and the system is especially suitable for distributed equipment management requirements in the fields of intelligent education, digital advertisement, industrial Internet of Things and the like.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a data transmission control method and system. Background Art

[0002] With the prevalence of the Internet of Things and smart terminal devices, the demand for coordinated data transmission between multiple devices is growing. Traditional wireless data transmission solutions usually rely on fixed servers or single control terminals for device pairing and management, which has the following limitations: poor flexibility in data source switching: existing systems mostly use fixed transmission paths and cannot quickly switch between wired / wireless data source modes according to demand, resulting in limited application scenarios, especially lack of fault tolerance in emergency switching or network failures; complex pairing process and insufficient security: it is easy to be maliciously intercepted or counterfeited, making it difficult to ensure the credibility of device identity; lack of device status monitoring and management functions: traditional solutions lack active monitoring of the real-time operating status of the receiving end (such as screen capture and system status feedback), and cannot remotely control the power mode of the device (such as sleep and restart), requiring manual on-site operation, resulting in high operation and maintenance costs; insufficient playback control refinement: existing technologies lack the ability to dynamically configure parameters such as playback duration and start and end times of the receiving end, making it difficult to meet the precision requirements of scenarios such as advertising and educational presentations.

[0003] To address the above problems, the present invention proposes a data transmission control method and system, aiming to achieve safe and efficient device pairing, real-time and controllable data distribution, low-power device management, and flexible data source switching, thereby improving the overall operational efficiency and system reliability in multi-terminal collaboration scenarios. Summary of the Invention

[0004] The data transmission control method and system provided by the present invention solve the problems in the prior art of poor data source switching flexibility, complex and insecure pairing process, lack of device status monitoring and management functions, and insufficient refinement of playback control.

[0005] To solve the above problems, the present invention is achieved through the following technical solutions:

[0006] A first aspect: A data transmission control method comprising the following steps:

[0007] (1) The mobile control terminal and several receiving devices are connected to the same local area network;

[0008] (2) The mobile control terminal performs pairing authentication by scanning the QR code displayed by the receiving device or inputting the ID number corresponding to the receiving device;

[0009] (3) After successful pairing, the mobile control terminal displays a list of optional receiving devices;

[0010] (4) The user selects a target receiving device through the display interface of the mobile control terminal;

[0011] (5) The user selects the locally stored data to be transmitted via the mobile control terminal;

[0012] (6) The mobile control terminal transmits the selected data to the selected receiving device via the local area network.

[0013] A preferred embodiment of the present invention further comprises step (7):

[0014] The mobile control terminal sends a video screen capture instruction to the receiving device, causing the receiving device to return screenshot data of the current playing screen. The mobile control terminal displays and stores the screenshot data for monitoring the playing status.

[0015] A preferred embodiment of the present invention further comprises:

[0016] The mobile control terminal sends a system status instruction to the receiving device to control the receiving device to enter a sleep state or a restart state;

[0017] The sleep state instruction triggers the receiving device to turn off the display module and maintain network standby;

[0018] The restart state instruction triggers the receiving device to perform a system self-check and reload the play queue.

[0019] A preferred embodiment of the present invention further comprises:

[0020] The mobile control terminal sends a play duration control instruction to the receiving device, where the instruction includes setting a single play duration threshold and a play start and end time.

[0021] A preferred solution of the present invention: the pairing authentication in step (2) includes:

[0022] Scan the QR code displayed on the receiving device, the QR code containing the new QR code of the encrypted verification code;

[0023] The mobile control terminal completes identity authentication by decrypting the verification code and obtains the network address of the receiving device.

[0024] A preferred embodiment of the present invention:

[0025] When multiple receiving devices are selected at the same time, the mobile control terminal performs the following operations:

[0026] Transmit the same data file to all selected receiving devices in parallel;

[0027] The data transmission bandwidth is dynamically allocated according to the response delay of each receiving device.

[0028] A second aspect: A data transmission control system for executing the above control method, comprising:

[0029] Mobile control terminal;

[0030] a sending device for transmitting data via a wired network;

[0031] A switch, connected to the sending device and the receiving device via network cables respectively;

[0032] The sending device is provided with a dip switch for switching the data source mode:

[0033] Mode 1: The receiving device exchanges data with the sending device through the switch;

[0034] The second mode: the receiving device exchanges data with the mobile control terminal via the local area network.

[0035] A preferred solution of the present invention: the switching logic of the DIP switch includes:

[0036] When the dip switch is set to the first mode, the sending device sends an exclusive control signal to the switch to shield the wireless transmission request of the mobile control terminal;

[0037] When the dial switch is set to the second mode, the sending device enters a silent state, and the mobile control terminal takes over the control of data transmission through the wireless local area network.

[0038] A preferred embodiment of the present invention:

[0039] The mobile control terminal includes application software, a memory, and a processor coupled to the memory, wherein the memory stores application instructions and data, and the processor is configured to perform the following operations:

[0040] Parse the control instructions input by the user;

[0041] generating an encrypted data packet and sending it to a receiving device via a wireless network;

[0042] Receive and analyze feedback data and screenshot information from the receiving device.

[0043] A preferred embodiment of the present invention:

[0044] The receiving device includes a memory, a display module, and a processor coupled to the memory, wherein the memory stores application instructions and data, and the processor is configured to perform the following operations:

[0045] Respond to the screenshot command of the mobile control terminal and capture the current display screen;

[0046] Switch sleep / restart mode according to system status instructions.

[0047] Beneficial effects:

[0048] The present invention solves the pain points of traditional solutions in terms of security, efficiency, and management flexibility through the collaborative design of dynamic authentication, intelligent transmission scheduling, remote control, and multi-mode switching, significantly improving the operational convenience, system stability, and operation and maintenance efficiency in multi-terminal collaborative scenarios. It is particularly suitable for distributed equipment management needs in the fields of smart education, digital advertising, and industrial Internet of Things. Specifically, it is: remote status monitoring and refined management: the video screen capture function provides real-time feedback on the playback status of the receiving end, facilitating abnormal monitoring and troubleshooting; supports remote control of the receiving device to enter sleep or restart mode, reducing manual intervention costs and extending equipment life; dynamic configuration of parameters such as playback duration thresholds, start and end times, etc., to meet the precision requirements of scenarios such as advertising carousels and course demonstrations. Flexible data source switching and fault tolerance: fast switching between wired and wireless modes is achieved through the dip switch. In the first mode, wireless interference is shielded to ensure stability. In the second mode, control is seamlessly taken over to enhance the system's disaster recovery capabilities. The dual-mode design supports the needs of different network environments and expands the adaptability of application scenarios. Low power consumption and high compatibility: In sleep mode, only the display module is turned off and the network is maintained in standby mode, achieving a balance between energy saving and responsiveness. The modular design of the mobile control terminal and receiving device is compatible with multiple hardware platforms, facilitating integrated deployment. A dynamic authentication mechanism enhances security: QR code encryption and verification technology effectively prevents the risk of conventional QR codes being counterfeited or intercepted, ensuring the uniqueness and legitimacy of the device identity. Encrypted data packet exchange between the mobile control terminal and the receiving device further safeguards the integrity and confidentiality of command transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following describes the

[0050] The accompanying drawings are briefly introduced. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without any creative work.

[0051] Figure 1 is a flow chart of the data transmission control method of the present invention;

[0052] Figure 2 It is a schematic diagram of the system structure of the present invention.

[0053] Reference numerals

[0054] 100, mobile control terminal; 200, receiving device; 300, switch; 400, sending device. DETAILED DESCRIPTION

[0055] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0056] like Figure 1-2 As shown:

[0057] A first aspect: A data transmission control method comprising the following steps:

[0058] (1) The mobile control terminal 100 and several receiving devices 200 are connected to the same local area network;

[0059] (2) The mobile control terminal 100 performs pairing authentication by scanning the QR code displayed by the receiving device 200 or inputting the ID number corresponding to the receiving device 200;

[0060] (3) After successful pairing, the mobile control terminal 100 displays a list of optional receiving devices 200;

[0061] (4) The user selects the target receiving device 200 through the display interface of the mobile control terminal 100;

[0062] (5) The user selects the locally stored data to be transmitted via the mobile control terminal 100;

[0063] (6) The mobile control terminal 100 transmits the selected data to the selected receiving device 200 via the local area network.

[0064] Specifically:

[0065] The mobile control terminal 100 can be connected to the same wireless local area network as a tablet computer or a smart phone with multiple receiving devices 200; if the receiving device 200 is in the newly started state, its display module generates a dynamically updated QR code, and the user scans the QR code through the camera of the mobile control terminal 100; if the receiving device 200 is in the working state, the unique ID number on the back of the receiving device 200 is manually entered for pairing; after successful pairing, the mobile control terminal 100 broadcasts a query command through the local area network to obtain the status information of all authenticated receiving devices 200 (such as device name, IP address, current task), and generates a list of optional receiving devices 200 in a graphical interface; the user selects a single or multiple target receiving devices 200, and selects the data file to be transmitted from the local storage; the mobile control terminal 100 starts parallel transmission to the receiving device 200 according to the number of selected receiving devices 200.

[0066] A preferred embodiment of the present invention further comprises step (7):

[0067] The mobile control terminal 100 sends a video screen capture instruction to the receiving device 200, so that the receiving device 200 returns the screenshot data of the current playing screen. The mobile control terminal 100 displays and stores the screenshot data for monitoring the playing status.

[0068] Specifically, a user sends a screenshot command via mobile control terminal 100 to a designated receiving device 200. The processor of receiving device 200 accesses the frame buffer data of the display module, captures the currently playing screen, compresses it into JPEG format, and returns it to mobile control terminal 100 via the local area network. Mobile control terminal 100 compares the screenshot with a preset standard screen and triggers an alarm if it detects an anomaly such as a black screen or a distorted screen.

[0069] A preferred embodiment of the present invention further comprises:

[0070] The mobile control terminal 100 sends a system status instruction to the receiving device 200 to control the receiving device 200 to enter a sleep state or a restart state;

[0071] The sleep state instruction triggers the receiving device 200 to turn off the display module and maintain network standby;

[0072] The restart state instruction triggers the receiving device 200 to perform a system self-check and reload the play queue.

[0073] Specifically:

[0074] Sleep mode: After sending the sleep command, the receiving device 200 turns off the backlight power of the display module and suspends the playback task, but keeps the network module in low-power standby mode, such as the Wi-Fi chip maintains a long TCP connection, to ensure that it can be woken up remotely; Restart mode: After sending the restart command, the receiving device 200 performs a system self-check and reloads the unfinished playback queue, that is, the video files that were not played before power failure.

[0075] A preferred embodiment of the present invention further comprises:

[0076] The mobile control terminal 100 sends a play duration control instruction to the receiving device 200 , where the instruction includes setting a single play duration threshold and a play start and end time.

[0077] Specifically, the user sets a single playback duration threshold (e.g., a maximum of 6 hours of looped advertising playback) or specifies a playback period. The mobile control terminal 100 generates a corresponding control instruction and transmits it encrypted to the receiving device 200. After the processor of the receiving device 200 parses the instruction, it automatically pauses playback if it detects a timeout or that the time period has expired.

[0078] A preferred solution of the present invention: the pairing authentication in step (2) includes:

[0079] Scan the QR code displayed by the receiving device 200, which contains a new QR code with an encrypted verification code;

[0080] The mobile control terminal 100 completes identity authentication by decrypting the verification code and obtains the network address of the receiving device 200.

[0081] Specifically: the QR code is generated by the processor of the receiving device 200, contains an encrypted verification code, and is synchronously updated to the display interface; the processor of the mobile control terminal 100 parses the encrypted verification code in the QR code, confirms the legitimacy of the device, obtains the IP address of the receiving device 200, and completes the pairing authentication.

[0082] A preferred embodiment of the present invention:

[0083] When multiple receiving devices 200 are selected at the same time, the mobile control terminal 100 performs the following operations:

[0084] transmitting the same data file to all selected receiving devices 200 in parallel;

[0085] The data transmission bandwidth is dynamically allocated according to the response delay of each receiving device 200 .

[0086] Specifically: Parallel transmission: the same data file is sent synchronously to all selected receiving devices 200 through multiple threads; dynamic bandwidth allocation: the response delay of each receiving device 200 is monitored in real time. If the delay of a device exceeds a threshold (such as 200ms), its transmission priority is automatically lowered and the remaining bandwidth is allocated to other devices to ensure overall transmission efficiency.

[0087] A second aspect: A data transmission control system for executing the above control method, comprising:

[0088] Mobile control terminal 100;

[0089] The sending device 400 is used to transmit data via a wired network;

[0090] The switch 300 is connected to the sending device 400 and the receiving device 200 via network cables respectively;

[0091] The sending device 400 is provided with a dial switch for switching the data source mode:

[0092] First mode: the receiving device 200 exchanges data with the sending device 400 through the switch 300;

[0093] Second mode: the receiving device 200 exchanges data with the mobile control terminal 100 via the local area network.

[0094] A preferred solution of the present invention: the switching logic of the DIP switch includes:

[0095] When the dial switch is set to the first mode, the sending device 400 sends an exclusive control signal to the switch 300 to shield the wireless transmission request of the mobile control terminal 100;

[0096] When the dial switch is set to the second mode, the sending device 400 enters a silent state, and the mobile control terminal 100 takes over the data transmission control right through the wireless local area network.

[0097] Specifically: Wired mode, i.e., the first mode: When the dial switch is set to "ON1", the sending device 400 sends an exclusive control signal to the switch 300, forcing the receiving device 200 to obtain data from the sending device 400 only through the wired network, while shielding the wireless connection request of the mobile control terminal 100; Wireless mode, i.e., the second mode: When the dial switch is set to "ON2", the sending device 400 stops sending data and enters a silent state, and the mobile control terminal 100 directly controls the receiving device 200 through the wireless local area network.

[0098] A preferred embodiment of the present invention:

[0099] The mobile control terminal 100 includes application software, a memory, and a processor coupled to the memory. The memory stores application instructions and data. The processor is configured to perform the following operations:

[0100] Parse the control instructions input by the user;

[0101] Generate an encrypted data packet and send it to the receiving device 200 via a wireless network;

[0102] Receive and analyze feedback data and screenshot information from the receiving device 200.

[0103] Specifically, the mobile control terminal 100 may include but is not limited to: a memory, a processor, application software, and a memory.

[0104] Memory can be used to: store application instructions and data;

[0105] The processor can be used to: call the application instructions and data stored in the memory, that is, to parse the control instructions input by the user; generate an encrypted data packet and send it to the receiving device 200 via the wireless network; receive and parse the feedback data and screenshot information from the receiving device 200.

[0106] It should be understood that the mobile control terminal 100 is only an example provided in an embodiment of the present invention, and the receiving device 200 may have more or fewer components than those shown, may combine two or more components, or may have different configurations of components.

[0107] A preferred embodiment of the present invention:

[0108] The receiving device 200 includes a memory, a display module, and a processor coupled to the memory, wherein the memory stores application instructions and data, and the processor is configured to perform the following operations:

[0109] Responding to the screenshot instruction of the mobile control terminal 100, capturing the current display screen;

[0110] Switch sleep / restart mode according to system status instructions.

[0111] Specifically, the receiving device 200 may include but is not limited to: a memory, a processor, and a display module.

[0112] Memory can be used to: store application instructions and data;

[0113] The processor can be used to: call the application instruction box data stored in the memory, that is, respond to the screenshot instruction of the mobile control terminal 100 to capture the current display screen; switch the sleep / restart mode according to the system status instruction.

[0114] It should be understood that the receiving device 200 is only an example provided in an embodiment of the present invention, and the receiving device 200 may have more or fewer components than those shown, may combine two or more components, or may have different configurations of components.

[0115] For example, the module division is merely a logical functional division. In actual implementation, other divisions may be employed. For example, multiple modules or components may be combined or integrated into another device, or some features may be omitted or not implemented. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via some interface, device, apparatus, or module, or may be an electrical, mechanical, or other form of connection.

[0116] Modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical modules, and may be located in one place or distributed across multiple network modules. Some or all of these modules may be selected based on actual needs to achieve the objectives of the embodiments of the present invention.

[0117] In addition, the functional modules in various embodiments of the present invention may be integrated into a single processing module, each module may exist physically separately, or two or more modules may be integrated into a single module. The aforementioned integrated modules may be implemented in the form of hardware or software functional modules.

[0118] If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, and other media that can store program code.

[0119] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A data transmission control method, characterized in that: The following steps are involved: (1) The mobile control terminal and several receiving devices are connected to the same local area network; (2) The mobile control terminal performs pairing authentication by scanning the QR code displayed by the receiving device or inputting the ID number corresponding to the receiving device; (3) After successful pairing, the mobile control terminal displays a list of optional receiving devices; (4) The user selects a target receiving device through the display interface of the mobile control terminal; (5) The user selects the locally stored data to be transmitted via the mobile control terminal; (6) The mobile control terminal transmits the selected data to the selected receiving device via the local area network.

2. The data transmission control method according to claim 1, wherein: The method further comprises step (7): The mobile control terminal sends a video screen capture instruction to the receiving device, causing the receiving device to return screenshot data of the current playing screen. The mobile control terminal displays and stores the screenshot data for monitoring the playing status.

3. The data transmission control method according to claim 2, wherein: Also includes: The mobile control terminal sends a system status instruction to the receiving device to control the receiving device to enter a sleep state or a restart state; The sleep state instruction triggers the receiving device to turn off the display module and maintain network standby; The restart state instruction triggers the receiving device to perform a system self-check and reload the play queue.

4. The data transmission control method according to claim 1, wherein: Also includes: The mobile control terminal sends a play duration control instruction to the receiving device, where the instruction includes setting a single play duration threshold and a play start and end time.

5. The data transmission control method according to claim 1, wherein: The pairing authentication in step (2) includes: Scan the QR code displayed on the receiving device, the QR code containing the new QR code of the encrypted verification code; The mobile control terminal completes identity authentication by decrypting the verification code and obtains the network address of the receiving device.

6. The data transmission control method according to claim 1, wherein: When multiple receiving devices are selected at the same time, the mobile control terminal performs the following operations: Transmit the same data file to all selected receiving devices in parallel; The data transmission bandwidth is dynamically allocated according to the response delay of each receiving device.

7. A data transmission control system for executing the control method according to any one of claims 1 to 6, characterized in that: include: Mobile control terminal; a sending device for transmitting data via a wired network; A switch, connected to the sending device and the receiving device via network cables respectively; The sending device is provided with a dip switch for switching the data source mode: Mode 1: The receiving device exchanges data with the sending device through the switch; The second mode: the receiving device exchanges data with the mobile control terminal via the local area network.

8. The data transmission control system according to claim 7, characterized in that: The switching logic of the DIP switch includes: When the dip switch is set to the first mode, the sending device sends an exclusive control signal to the switch to shield the wireless transmission request of the mobile control terminal; When the dial switch is set to the second mode, the sending device enters a silent state, and the mobile control terminal takes over the control of data transmission through the wireless local area network.

9. The system according to claim 7, characterized in that: The mobile control terminal includes application software, a memory, and a processor coupled to the memory, wherein the memory stores application instructions and data, and the processor is configured to perform the following operations: Parse the control instructions input by the user; generating an encrypted data packet and sending it to a receiving device via a wireless network; Receive and analyze feedback data and screenshot information from the receiving device.

10. The system according to claim 7, wherein: The receiving device includes a memory, a display module, and a processor coupled to the memory, wherein the memory stores application instructions and data, and the processor is configured to perform the following operations: Respond to the screenshot command of the mobile control terminal and capture the current display screen; Switch sleep / restart mode according to system status instructions.

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