Network-free high-confidentiality screen projection device and system thereof

Abstract

The invention relates to a network-free high-secrecy screen projection device and system, and belongs to the field of video projection devices.The network-free high-secrecy screen projection device comprises a shell, the shell adopts a front uncovering design, a clamp used for fixing a mobile terminal is arranged in the shell, and the clamp is used for fixing a mobile phone; the image acquisition device is arranged in the shell, is positioned on the vertical plate opposite to the clamp, and is connected with external display equipment through an interface; and the audio acquisition device is arranged on the openable cover plate of the shell and is connected with an external audio system through an audio interface. Through a non-network connection mode, high-secrecy screen projection of the secrecy mobile phone is realized, and the potential information leakage risk caused by network connection is effectively avoided. Due to the fact that the image collecting device and the audio collecting device are adopted, potential safety hazards of traditional wireless screen projection and network transmission are overcome, and then extremely high information confidentiality is achieved.

Description

Technical Field

[0001] This invention belongs to the field of video projection devices, and in particular relates to a network-free, highly secure screen projection device and system. Background Art

[0002] With the development of information technology, the military's demand for informatization is constantly increasing, especially in military command, tactical planning, and intelligence analysis. Informatization has become a crucial means to enhance the combat effectiveness of troops. However, with the in-depth application of information technology, information security issues are becoming increasingly prominent, especially in the military environment, where ensuring absolute information security has become a critical task. Mobile phones, as an important tool for ensuring information security, are widely used in military command, classified communications, and other scenarios.

[0003] In existing technologies, common multimedia sharing methods mainly rely on wireless screen mirroring or data transmission via network connections. While these methods are widely used in ordinary environments, they pose significant security risks in military scenarios. On the one hand, any form of network connection can become a potential avenue for information leakage; on the other hand, the security protocols and modules within mobile phones restrict direct connections to external devices, making traditional screen mirroring methods difficult to implement on secure mobile phones.

[0004] To address this issue, existing solutions typically rely on dedicated hardware devices that employ complex encryption algorithms and multiple authentication methods to ensure secure data transmission. However, these solutions not only increase the complexity and difficulty of use of the devices but also require additional network support, which is incompatible with the stringent security requirements and environmental constraints of military scenarios. Therefore, achieving secure screen mirroring from a mobile phone without the use of a network has become a pressing technical challenge.

[0005] Therefore, this invention proposes a network-free, high-security screen projection device and system. Summary of the Invention

[0006] The purpose of this invention is to provide a network-free, high-security screen projection device and system, which improves the security of high-security information projection.

[0007] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] A network-free, high-security screen projection device, the device comprising:

[0009] The outer casing, with a clamp inside for securing the mobile terminal,

[0010] The clamp is used to secure the mobile phone;

[0011] An image acquisition device is disposed inside the housing, located on the upright plate opposite the fixture, and connected to an external display device via an interface;

[0012] An audio acquisition device is disposed on the side of the clamp of the fixed mobile terminal, near the speaker of the mobile phone, and is connected to an external audio system through an audio interface.

[0013] On the other hand, a network-free, high-security screen projection system is provided, the system including the aforementioned network-free, high-security screen projection system, an external display device connected to the video interface, and an external audio system connected to the audio interface.

[0014] Beneficial effects:

[0015] By achieving highly secure screen projection from a secure mobile phone without a network connection, the potential information leakage risks associated with network connections are effectively avoided. Because it employs image and audio capture devices, it overcomes the security vulnerabilities of traditional wireless screen projection and network transmission, thus achieving extremely high information confidentiality.

[0016] The casing design features a front-opening mechanism and adjustable internal clips, allowing the device to accommodate different phone models and sizes, and making operation simple. The sliding mechanism and flexible latches ensure portability and operational flexibility, meeting the needs of various usage scenarios.

[0017] The use of a high-resolution camera module and audio acquisition device enables the mobile phone screen content and audio to be transmitted to external display devices and audio systems in a high-definition and lossless manner, ensuring the clarity and synchronization of images and sound in meetings and command.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is an overall structural diagram of an embodiment of the present disclosure;

[0021] Figure 2 This is an internal structure diagram of an embodiment of the present disclosure;

[0022] Figure 3 This is a structural diagram of the front cover according to an embodiment of the present disclosure;

[0023] Figure 4 This is a diagram showing the effect of the front cover being opened according to an embodiment of this disclosure. Detailed Implementation

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the 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.

[0025] The outer casing of this invention adopts a front-opening design, and the overall structure is made of lightweight, high-strength engineering plastics or metal. The interior of the casing houses a clamp for securing the mobile terminal, an image acquisition device for capturing images and audio from the mobile terminal, and an external high-definition interface and an audio interface for transmitting data from the image acquisition device and the audio acquisition device to the image display device and the audio generator, respectively.

[0026] The clamp for fixing the mobile terminal is set on an openable cover plate, and the inside of the openable cover plate is provided with a clamp for fixing the mobile terminal.

[0027] The image acquisition device is set on the upright plate opposite the open cover. The image acquisition device is a camera. The audio acquisition device is set on the openable cover to ensure the audio acquisition effect.

[0028] like Figure 1 As shown, the image acquisition device includes a housing 1, which includes an openable front cover 2. The front cover 2 is connected to the housing 1 via a hinge 3. The hinge 3 has a built-in damping device to ensure sufficient stability during opening and closing, so as not to affect operation due to excessive speed or slowness.

[0029] like Figure 3 As shown, a hinge mounting block 10 is bolted to the bottom surface of the outer shell 1. One end of the hinge 3 is mounted on the hinge mounting block 10 and the other end is mounted on the front cover 2. A damping device is installed on the hinge mounting block 10 to ensure the installation strength.

[0030] The overall structure is made of lightweight, high-strength engineering plastics or metals, and the outer shell has robust protective properties. After special treatment, it is waterproof, dustproof, and shockproof, and can adapt to harsh military environments.

[0031] outside

[0032] like Figure 2As shown, the housing 1 has a clamp 5 inside for securing the mobile phone. The clamp 5 is installed inside the openable front cover 2 and consists of a sliding device and a spring-loaded buckle 7. The sliding device can be adjusted according to different models and sizes of mobile phones to stably fix the phone in a designated position. The spring-loaded buckle 7 is lined with flexible material to prevent the phone from being scratched and to provide stable support, ensuring that the phone will not shift or fall off during use. The spring-loaded buckle 7 works in conjunction with a slide rail.

[0033] A rubber pad 4 is provided between the outer shell 1 and the front cover 2 to ensure the stability of the front cover 2 when closed and to reduce noise. A U-shaped bracket 11 is installed on the end of the outer shell 1 near the front cover 2 by bolts. The rubber pad 4 is installed on the U-shaped bracket 11. The U-shaped bracket 11 can ensure the overall strength of the outer shell 1.

[0034] An image acquisition device 8, employing a high-resolution camera module, is housed inside the outer casing 1. The image acquisition device 8 is fixed to a vertical plate opposite the front cover inside the casing, with the camera aimed at the mobile phone screen in the mounting fixture. The image acquisition device 8 features autofocus, automatically adjusting the focus based on the angle and distance of the mobile phone screen to ensure clear and stable image capture. The image acquisition device 8 connects to an external LED screen via a high-definition interface, transmitting the real-time captured mobile phone screen content losslessly to the display device.

[0035] The audio capture device 6 is located on the openable front cover, near the phone's speaker. This device can synchronously capture the audio content played by the phone and transmit it to an external audio system via an external audio interface.

[0036] The side or back of the housing features a high-definition interface and an audio interface. The high-definition interface connects the camera module to an external LED screen, supporting standard HDMI or VGA interfaces to ensure high-quality video signal transmission. The audio interface uses a standard 3.5mm jack or other common audio connection methods, ensuring compatibility with various types of military voice systems. Both interfaces are equipped with protective covers to prevent dust and moisture from entering.

[0037] Furthermore, to prevent internal components from overheating during prolonged operation, this invention incorporates a heat dissipation structure. Heat dissipation holes 9 are strategically distributed on the sides or back of the casing, and heat-conducting plates are installed inside, connecting to heat-generating components such as the camera module. This dissipates heat to the casing surface and is then exhausted through the heat dissipation holes of a cooperating cooling fan. This design ensures stable operation of the device over extended periods in various environments.

[0038] In summary, the proposed device enables the output of a mobile phone screen content and audio to an external display device and audio system without requiring any network connection. This device not only improves the efficiency and security of military meetings but also boasts advantages such as portability, ease of operation, and adaptability to harsh environments, making it suitable for widespread use in various military scenarios.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A highly confidential screen projection device without network, characterized in that: The device comprises: A housing, wherein a fixture for fixing the mobile terminal is provided inside the housing, The clamp is used to fix the mobile phone; An image acquisition device, which is arranged inside the housing, located on a vertical plate opposite to the fixture, and connected to an external display device through an interface; The audio collection device is arranged on the side of the fixture for fixing the mobile terminal, close to the speaker position of the mobile phone, and is connected to the external audio system through an audio interface.

2. A non-network high-security screen projection device according to claim 1, characterized in that: The housing comprises an openable front cover, the front cover is connected to the housing through a hinge, and a clamp for fixing the mobile terminal is arranged on the front cover.

3. A non-network high-security screen projection device according to claim 1, characterized in that: A rubber pad is arranged between the shell and the front cover.

4. The non-network high-security screen projection device according to claim 1, characterized in that: A hinge mounting block is installed on the bottom surface of the shell through bolts, one end of the hinge is installed on the hinge mounting block and the other end is installed on the front cover, and a damping device is installed on the hinge mounting block.

5. The non-network high-security screen projection device according to claim 1, characterized in that: The device includes a heat dissipation structure, which includes heat dissipation holes distributed on the side or back of the shell and an internal heat conductive sheet. The heat conductive sheet is connected to the image acquisition device and conducts heat to the surface of the shell, and the heat is discharged through the heat dissipation holes.

6. The non-network high-security screen projection device according to claim 1, characterized in that: The clamp is composed of a sliding device and an elastic buckle, the sliding device can be adjusted according to mobile phones of different models and sizes, and the elastic buckle is lined with a flexible material.

7. The non-network high-security screen projection device according to claim 1, characterized in that: The video interface supports HDMI or VGA interface, and the audio interface is a standard 3.5mm jack or other common audio connection methods.

8. A highly confidential screen projection system without network, characterized in that: The system includes a network-free, highly confidential screen projection device according to any one of claims 1-6, an external display device connected to the video interface, and an external audio system connected to the audio interface.

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