Intelligent shielding device capable of freely combining frequency bands

Abstract

The utility model discloses an intelligent shielding device capable of freely combining frequency bands. The intelligent shielding device comprises an ARM configuration, an FPGA configuration, an information acquisition public board, a digital baseband signal source and a front-end radio frequency power amplifier. According to the utility model, the digital baseband signal source adopts a universal PCIE (Peripheral Component Interface Express) interface, customization requirements and replaceability can be met, compared with a traditional scheme, the cost is lower, digitization can meet legal constraint and supervision, the front-end radio frequency power amplifier adopts a universal modular design, personalized requirements are met, and multiple frequency bands share one set of hardware scheme, so that the system is more convenient to use. And the digital part and the radio frequency part of the product both adopt modular design, and are combined and customized through a mother board, so that the maintenance is flexible and the like.

Description

Technical Field

[0001] The utility model relates to the field of shielding devices, in particular to an intelligent shielding device with freely combined frequency bands. Background Art

[0002] Faced with the rapid development of the communication era, communication technology, spectrum, and standards are also constantly developing. In some special fields, such as education, prisons, confidential conference rooms and other security protection or communication control areas, the demand is also increasing. Signal jammers are also constantly improving and innovating. In the future, the mobile phone signal jammer market will develop in a more efficient and intelligent direction.

[0003] The signal jammer market will pay more and more attention to personalized needs. Different industries and different occasions have different requirements for signal jammers. Customized products will become more and more important. Signal jammers need to cope with signal shielding in different frequency bands and different distances. Utility Model Content

[0004] In view of the above problems, the present application provides an intelligent jammer with freely combined frequency bands, which is used for signal shielding of different frequency bands and different distances.

[0005] To achieve the above-mentioned purpose, the present application provides a smart jammer with a freely combined frequency band, including: ARM configuration, FPGA configuration, information collection public version, digital baseband signal source, and front-end RF power amplifier;

[0006] The information collection public version is electrically connected to the ARM configuration, the FPGA configuration, and the digital baseband signal source respectively;

[0007] The digital baseband signal source is electrically connected to the front-end radio frequency power amplifier;

[0008] The digital baseband signal source is used to generate a signal and control the output amplitude of the signal;

[0009] The front-end radio frequency power amplifier is used to receive and / or amplify frequency bands.

[0010] Further: the information collection public version includes a data collection unit, a data processing unit, a communication interface unit, and a control logic unit;

[0011] The data processing unit is electrically connected to the data acquisition unit, the communication interface unit and the control logic unit respectively;

[0012] The data acquisition unit is used to access the sensor;

[0013] The data processing unit is used to process the data collected by the data acquisition unit;

[0014] The communication interface unit is used to communicate with the host computer;

[0015] The control logic unit is used to control the data acquisition process and store or process the data acquisition data as needed.

[0016] Further: the digital baseband signal source includes a signal source, an encoder, and a modulator;

[0017] The encoder is electrically connected to the information source and the modulator respectively;

[0018] The information source is used to generate a digital signal;

[0019] The encoder is used to encode the digital signal generated by the information source;

[0020] The modulator is used to modulate the encoded digital signal onto a baseband signal.

[0021] Further: the front-end RF power amplifier includes a preamplifier, a driver amplifier, and a final RF power amplifier;

[0022] The preamplifier, the driver amplifier and the final-stage RF power amplifier are electrically connected in sequence;

[0023] The preamplifier is used to absorb and / or convert signals;

[0024] The driving amplifier amplifies the current signal.

[0025] Further: the sensor in the data acquisition unit is a temperature sensor, a pressure sensor or a light intensity sensor.

[0026] Further: the data collected in the data processing unit includes data filtering, signal strength evaluation, and data integration.

[0027] Further: the communication interface unit is a USB or Ethernet interface.

[0028] Further: the information source is text, audio or video.

[0029] Different from the existing technology, the above technical solution uses a universal PCIE interface for the digital baseband signal source, which can meet the customization requirements and replaceability. Compared with the traditional solution, the cost is lower, and the digitization can meet the legal constraints and supervision. The front-end RF power amplifier is a universal modular design, which meets the personalized needs and multiple frequency bands share a set of hardware solutions, which is more cost-effective. The digital part and the RF part are both modularly designed, which can be customized and repaired flexibly through the motherboard combination.

[0030] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0032] Figure 1 This is the internal block diagram of the radio frequency front-end amplifier module of the utility model;

[0033] Figure 2 This is the functional block diagram of the digital baseband signal source of the utility model;

[0034] Figure 3 This is a functional block diagram of the utility model product. DETAILED DESCRIPTION

[0035] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0037] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0038] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0039] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0040] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0041] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0042] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0043] See also Figure 1-3The utility model provides an intelligent shielding device with free combination frequency bands, including ARM configuration, FPGA configuration, information collection public version, digital baseband signal source, and front-end RF power amplifier; the ARM configuration and FPGA configuration are placed on the information collection public version, and the information collection public version is electrically connected to the ARM configuration, FPGA configuration, and digital baseband signal source respectively; the digital baseband signal source is electrically connected to the front-end RF power amplifier, and the digital baseband signal source can generate signals and control the signal output amplitude by itself, and is suitable for TDD and FDD scenarios; the front-end RF power amplifier supports all dedicated and general communication frequency bands commonly used in communication and the requirements of single-carrier 100M bandwidth. Among them, the ARM is a processor, and the FPGA is a programmable logic device. TDD (Time Division Duplexing) is time division duplexing, and FDD (Frequency Division Duplexing) is frequency division duplexing.

[0044] In this embodiment, the information collection public version includes a data collection unit, a data processing unit, a communication interface unit, and a control logic unit; the data processing unit is electrically connected to the data collection unit, the communication interface unit, and the control logic unit respectively; the data collection unit is used to access various sensors; the data processing unit performs necessary processing on the collected data; the communication interface unit is used to communicate with a host computer or other devices; the control logic unit is used to control the entire collection process and store or process the collected data as needed.

[0045] Among them, the sensors in the data acquisition unit include but are not limited to temperature sensors, pressure sensors, and light intensity sensors; the data collected in the data processing unit include but are not limited to data filtering, signal strength evaluation, and data integration; other devices used in the communication interface unit include but are not limited to USB and Ethernet interfaces.

[0046] Among them, the information collection public version optimizes the timing of FPGA logic to improve the stability and work efficiency of the system, and optimizes the power consumption of FPGA chips to improve the reliability and service life of the system. It also uses DMA technology for data transmission, reduces CPU occupancy, and improves the system response speed.

[0047] In this embodiment, the digital baseband signal source includes a signal source, an encoder, and a modulator; the signal source is used to generate a digital signal; the encoder is electrically connected to the signal source and the modulator, respectively; the encoder is used to encode the digital signal generated by the signal source to meet the transmission requirements; the modulator is used to modulate the encoded digital signal onto the baseband signal for transmission on the channel.

[0048] Among them, the information source includes but is not limited to text, audio, and video. The use of the encoder may involve operations such as data compression and encryption to ensure more efficient and secure data transmission. The use of the modulator may involve changes in the amplitude, frequency, or phase of the signal.

[0049] In this embodiment, the front-end RF power amplifier includes a preamplifier, a driver amplifier, and a final RF power amplifier; the preamplifier, the driver amplifier, and the final RF power amplifier are electrically connected in sequence; the preamplifier plays a matching role, absorbing and transmitting most signals, and at the same time, it itself is a current amplifier, which converts the input voltage signal into a current signal and gives appropriate amplification; the driver amplifier plays a bridge role, which further amplifies the current signal sent by the preamplifier and amplifies it into a medium-power signal to drive the final RF power amplifier to work normally; the final RF power amplifier plays a key role, which converts the current signal sent by the driver amplifier into a high-power signal to drive the speaker to make sound.

[0050] Among them, the front-end RF power amplifier can improve the stability of the amplifier and reduce the sensitivity to parameter changes and external environment changes through measures such as negative feedback, impedance matching, impedance stabilization network, and tuning circuit. Negative feedback can reduce the gain of the amplifier, reduce the sensitivity of the amplifier, and reduce the sensitivity to parameter changes by feeding back a part of the output signal to the input of the amplifier, thereby improving stability; impedance matching ensures the impedance matching of the input and output ports. Appropriate input and output matching can reduce reflection losses and reduce sensitivity to external environmental changes; impedance stabilization network uses impedance stabilization networks, such as attenuators and matching networks, at the input and output ports to improve the stability of the amplifier; the tuning circuit can adjust the frequency to improve the stability of the amplifier within a specific frequency range.

[0051] Among them, the preamplifier has a high input impedance (not less than 10kΩ), which can absorb most of the previous signal, and a low output impedance (less than tens of Ω), which can transmit most of the signal; the technical indicators of the final-stage RF power amplifier determine the technical indicators of the entire RF power amplifier.

[0052] In this embodiment, Figure 1 As shown, the RF front-end power is amplified. This module supports the 200M-4.2GHz frequency band and has a linear power output of 1W-5W. It is multi-band universal and replaceable, meeting all current scenarios that require signal shielding. Figure 2 As shown, it provides baseband RF signal output, output power amplitude control, FDD, TDD standard output.

[0053] See also Figure 1-Figure 3When in use, the combined, customized jammer transmits a signal with the same or similar communication frequency as the target device, covering and interfering with the original signal, making it impossible for the wireless communication device to receive normal signals, effectively blocking the normal operation of the mobile phone signal.

[0054] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0055] The digital baseband signal source is attached Figure 3 The front-end RF power amplifier is a PA module in the figure.

[0056] The control mode of the utility model is to automatically control through a controller. The control circuit of the controller can be realized by simple programming by a technician in the field. The provision of power is also common knowledge in the field. The utility model is mainly used to protect mechanical devices, so the utility model will not explain the control mode and circuit connection in detail. Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, not to limit it; although the present application is described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that it can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein; 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 all be included in the scope of the claims and specifications of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An intelligent jammer with free combination frequency bands, characterized in that: include: ARM configuration, FPGA configuration, information collection public version, digital baseband signal source, front-end RF power amplifier; The ARM configuration and the FPGA configuration are both placed on the information collection public version; The information collection public version is electrically connected to the ARM configuration, the FPGA configuration, and the digital baseband signal source respectively; The digital baseband signal source is electrically connected to the front-end radio frequency power amplifier; The digital baseband signal source is used to generate a signal and control the output amplitude of the signal; The front-end radio frequency power amplifier is used to receive and / or amplify frequency bands.

2. According to claim 1, a smart jammer with free combination of frequency bands, characterized in that: The information collection version includes a data collection unit, a data processing unit, a communication interface unit, and a control logic unit; The data processing unit is electrically connected to the data acquisition unit, the communication interface unit and the control logic unit respectively; The data acquisition unit is used to access the sensor; The data processing unit is used to process the data collected by the data acquisition unit; The communication interface unit is used to communicate with the host computer; The control logic unit is used to control the data acquisition process and store or process the data acquisition data as needed.

3. According to claim 1, the intelligent jammer with free combination frequency bands is characterized in that: The digital baseband signal source includes a signal source, an encoder, and a modulator; The encoder is electrically connected to the information source and the modulator respectively; The information source is used to generate a digital signal; The encoder is used to encode the digital signal generated by the information source; The modulator is used to modulate the encoded digital signal onto a baseband signal.

4. According to claim 1, the intelligent jammer with free combination frequency bands is characterized in that: The front-end RF power amplifier includes a preamplifier, a driver amplifier, and a final RF power amplifier; The preamplifier, the driver amplifier and the final-stage RF power amplifier are electrically connected in sequence; The preamplifier is used to absorb and / or convert signals; The driving amplifier amplifies the current signal.

5. According to claim 2, the intelligent jammer with free combination frequency bands is characterized in that: The sensor in the data acquisition unit is a temperature sensor, a pressure sensor or a light intensity sensor.

6. According to claim 2, the intelligent jammer with free combination frequency bands is characterized in that: The data collected in the data processing unit includes data filtering, signal strength evaluation, and data integration.

7. According to claim 2, the intelligent jammer with free combination frequency bands is characterized in that: The communication interface unit is a USB or Ethernet interface.

8. According to claim 3, the intelligent jammer with free combination frequency bands is characterized in that: The information source is text, audio or video.

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