Anti-divulging device with interference function
By designing the power module and signal generation module of the anti-leakage device to generate electromagnetic interference signals, the problem of insufficient interference with covert imaging devices in existing technologies is solved, achieving effective anti-leakage without replacing the display device and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-27
AI Technical Summary
Existing technologies lack effective interference solutions for covert imaging devices, and require the replacement of existing display devices, resulting in high operating costs.
Design a device to prevent information leakage, including a power supply module, a signal generation module and an adjustment module. It interferes with the imaging device by generating electromagnetic interference signals of a specific frequency, and affects the normal imaging process of the hidden camera device by using the principle of electromagnetic induction, without the need to replace the original display device.
Without affecting normal vision, it effectively interferes with the filming of covert cameras, allows for flexible adjustment of interference parameters, reduces usage costs, and improves the effectiveness of preventing data leakage.
Smart Images
Figure CN224054270U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of anti-leakage equipment, and particularly relates to an anti-leakage device with an interference function. BACKGROUND
[0002] At present, with the rapid development of science and technology, digital video equipment is constantly miniaturized and high-definition, such as hidden cameras, high-definition mobile phone cameras, etc. They are small in size, convenient to carry and clear in shooting quality. These devices make the shooting behavior more hidden, and make the information leakage risk rise sharply. In view of this problem, the current solution mainly starts from physical prevention, data processing and management specification; even if there are some solutions to interfere with imaging, they are based on the imaging display device itself, lack of solutions to interfere with the stolen imaging device itself, and need to replace the original display device, which is high in use cost. UTILITY MODEL CONTENT
[0003] In view of the defects in the prior art, the utility model aims to provide an anti-leakage device with an interference function.
[0004] The utility model provides an anti-leakage device with an interference function, which comprises a power module for providing stable power supply for the whole anti-leakage device, a signal generating module for generating electromagnetic interference signals, an adjusting module for realizing man-machine interaction and generating setting signals;
[0005] The adjusting module is connected with the signal generating module, and the signal generating module is configured to control the electromagnetic interference signals based on the setting signals, so that when the electromagnetic interference signals are radiated to the imaging device, the shooting of the imaging device can be effectively interfered.
[0006] Further, the power module adopts a switching power supply chip for converting the external input power into different voltages required by the device.
[0007] Further, the power module further comprises a connected filter capacitor to reduce the influence of power ripple on the signal generating module.
[0008] Further, the adjusting module adopts a man-machine touch screen and is connected with the signal generating module through a serial port.
[0009] Further, the signal generating module comprises a microcontroller, a direct digital frequency synthesis chip, a power amplifier and a transmitting antenna connected in sequence.
[0010] Further, the transmitting antenna adopts a dipole antenna.
[0011] Further, the microcontroller is connected with the direct digital frequency synthesis chip through an SPI interface, an analog output pin of the direct digital frequency synthesis chip is connected to an input of the power amplifier, and an output of the power amplifier is connected to the transmitting antenna.
[0012] The present application has the advantages that:
[0013] The present application provides a leakage-proof device with interference function, which can interfere with the image stealing device without affecting the normal vision, and can adjust the electromagnetic interference signal parameters according to different security scenes and imaging device characteristics through the adjusting module, thereby improving the leakage-proof effect; the whole scheme starts from the image stealing device itself, does not need to replace the original display device, has high adaptability, and effectively reduces the use cost. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. In all the drawings, similar elements or parts are generally indicated by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual proportions.
[0015] Figure 1 A principle block diagram of the leakage-proof device with interference function is shown;
[0016] Figure 2 A structure diagram of the signal generating module is shown. EMBODIMENTS
[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0018] It should be understood that, when used in the specification and the appended claims, the terms "comprise" and "include" indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not exclude one or more other features, integers, steps, operations, elements, components, and / or groups thereof.
[0019] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. Furthermore, it should be understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items, and all possible combinations thereof.
[0020] Antenna: an antenna.
[0021] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.
[0022] The inventive concept of this novel real-time invention is as follows: A signal generation module generates electromagnetic interference signals within a specific frequency range (e.g., 30MHz-300MHz, which covers the sensitive frequencies of most imaging devices). Based on the principle of electromagnetic induction, when these signals radiate to imaging spy devices (e.g., cameras or mobile phones containing CMOS image sensors), they induce currents in the internal circuitry of these devices. This induced current interferes with the normal electrical signal transmission and processing within the imaging spy device, affecting the accurate conversion of light signals into electrical signals by the CMOS image sensor, thereby disrupting the normal image imaging process and achieving the goal of preventing information leakage.
[0023] like Figure 1 The diagram shows a principle block diagram of an anti-leakage device with interference function provided by this utility model, including a power supply module for providing a stable power supply for the entire anti-leakage device, a signal generation module for generating electromagnetic interference signals, and an adjustment module for realizing human-computer interaction and generating setting signals.
[0024] The adjustment module is connected to the signal generation module, and the signal generation module is configured to control the electromagnetic interference signal based on the setting signal, so that when the electromagnetic interference signal is radiated to the imaging device, it can effectively interfere with the imaging device's shooting.
[0025] Reference Figure 2 In this embodiment, the signal generation module includes a microcontroller, a direct digital frequency synthesis chip, a power amplifier, and a transmitting antenna connected in sequence; wherein, the transmitting antenna is a dipole antenna;
[0026] The microcontroller is connected to the direct digital frequency synthesizer chip via an SPI interface. The analog output pin of the direct digital frequency synthesizer chip is connected to the input of the power amplifier, and the output of the power amplifier is connected to the transmitting antenna.
[0027] In application, the microcontroller adopts an STM32 series single-chip microcomputer, the direct digital frequency synthesis chip adopts an AD9850 chip, and the power amplifier adopts an LM386 chip.
[0028] The power module adopts a switching power supply chip for converting an externally input power supply into different voltages required by the device, such as converting an externally input direct current power supply into different voltages required by the device (such as providing 3.3V for a microcontroller and 5V for an AD9850 chip) by using an LM2596.
[0029] Further, the power module further comprises a connected filter capacitor to reduce the influence of power supply ripple on the signal generation module.
[0030] The adjustment module adopts a man-machine touch screen and is connected with the signal generation module through a serial port.
[0031] In the embodiment, the man-machine touch screen is provided with a man-machine interaction interface, which facilitates the user to adjust the frequency, amplitude and other parameters of the electromagnetic interference signal according to the actual scene; and the microcontroller adjusts the control signal of the direct digital frequency synthesis chip in real time according to the parameters input by the user, so as to realize accurate adjustment of the interference signal.
[0032] The above scheme can interfere with the stealthy imaging device without affecting normal vision, and can flexibly adjust the electromagnetic interference signal parameters according to different security scenes and imaging device characteristics through the adjustment module, thereby improving the anti-leakage effect; the whole scheme starts from the stealthy imaging device itself, does not need to replace the original display device, has high adaptability, and effectively reduces the use cost.
[0033] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.
Claims
1. A leak prevention device with interference function, characterized in that, The power module is used for providing stable power supply for the whole anti-leakage device, the signal generation module is used for generating electromagnetic interference signals, the adjustment module is used for realizing human-computer interaction and generating setting signals; The adjustment module is connected with the signal generation module, and the signal generation module is configured to control the electromagnetic interference signals based on the setting signals, so that when the electromagnetic interference signals are radiated to the imaging device, the shooting of the imaging device can be effectively interfered.
2. The anti-leakage device with interference function according to claim 1, characterized in that, The power module adopts a switching power supply chip, which is used for converting the externally input power supply into different voltages required by the device.
3. The anti-disclosure device with an interference function according to claim 2, characterized in that, The power module further comprises a connected filter capacitor to reduce the influence of power supply ripple on the signal generation module.
4. The anti-disclosure device with an interference function according to claim 3, characterized in that, The adjustment module adopts a human-computer touch screen and is connected with the signal generation module through a serial port.
5. The anti-disclosure device with an interference function according to any one of claims 1 to 4, characterized in that, The signal generation module comprises a microcontroller, a direct digital frequency synthesis chip, a power amplifier and a transmitting antenna connected in sequence.
6. The anti-disclosure device with an interference function according to claim 5, characterized in that, The transmitting antenna adopts a dipole antenna.
7. The anti-disclosure device with an interference function according to claim 6, characterized in that, The microcontroller is connected with the direct digital frequency synthesis chip through an SPI interface, an analog output pin of the direct digital frequency synthesis chip is connected to an input of the power amplifier, and an output of the power amplifier is connected to the transmitting antenna.