CN107919925B - Radio monitoring device and system - Google Patents
Radio monitoring device and system Download PDFInfo
- Publication number
- CN107919925B CN107919925B CN201711128071.XA CN201711128071A CN107919925B CN 107919925 B CN107919925 B CN 107919925B CN 201711128071 A CN201711128071 A CN 201711128071A CN 107919925 B CN107919925 B CN 107919925B
- Authority
- CN
- China
- Prior art keywords
- radio
- subunit
- terminal
- signal
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
The embodiment of the invention provides a radio monitoring device and a radio monitoring system, and relates to the field of radio monitoring. The radio monitoring device comprises a radio receiving module, a device terminal and a terminal security module. The device terminal is respectively connected with the radio receiving module and the terminal security module; the radio receiving module and the equipment terminal are arranged in a shell; the terminal security module is a peripheral device and is used for carrying out security protection on a system, application software and data of the equipment terminal; the radio receiving module is used for receiving a radio signal, preprocessing the radio signal to obtain a first digital signal, and performing digital signal processing on the first digital signal to obtain a second digital signal; the device terminal is used for demodulating, interpreting or decoding the second digital signal, obtaining the original information transmitted by the radio signal and displaying the original information. The radio monitoring device is convenient for monitoring personnel to carry and use.
Description
Technical Field
The invention relates to the field of radio monitoring, in particular to a radio monitoring device and a radio monitoring system.
Background
The short-wave communication has the characteristics of long propagation distance, simple equipment operation, convenience in carrying and erection, flexibility in use, strong survivability and the like, and is an important communication means for near-medium-distance communication. In the technical field of traditional radio monitoring, radio signal receiving, signal identification processing, spectrum registration and warehousing and the like are all equipment, systems or equipment and systems independently developed by users provided by different manufacturers, except that the equipment and the systems are large in appearance, heavy, single in function, slow in updating and upgrading, incapable of performing signal analysis on site, inconvenient to carry, install, erect, transport and the like, unfavorable for emergency and emergency mobile processing application, and even the quality and the speed of radio monitoring are affected due to mismatching of signal receiving equipment and signal processing equipment.
Disclosure of Invention
In view of the above, the present invention provides a radio monitoring apparatus and system, which integrate a radio receiving module, a device terminal and a terminal security module, and perform demodulation processing by using the device terminal to obtain an original signal for displaying, so as to solve the problems in the prior art that radio monitoring is performed by different devices, and the radio monitoring range and signal processing effect are affected by single function, poor mobility, low intelligence level, unsafe processing result data, and the like.
In order to achieve the purpose, the invention provides the following technical scheme:
in one aspect, an embodiment of the present invention provides a radio monitoring apparatus, where the radio monitoring apparatus includes a radio receiving module, an equipment terminal, and a terminal security module, where the equipment terminal is connected to the radio receiving module and the terminal security module, respectively; the radio receiving module and the equipment terminal are arranged in a shell; the terminal security module is a peripheral device and is used for carrying out security protection on a system, application software and data of the equipment terminal; the radio receiving module is used for receiving a radio signal, preprocessing the radio signal to obtain a first digital signal, and performing digital signal processing on the first digital signal to obtain a second digital signal; the device terminal is used for demodulating, interpreting or decoding the second digital signal to obtain original information transmitted by the radio signal and displaying the original information.
Optionally, the radio receiving module includes a radio receiving antenna and a radio receiver, the radio receiving antenna is connected to the radio receiver, the radio receiver is connected to the device terminal, the radio receiver is configured to receive a radio signal, and the radio receiver is configured to pre-process the radio signal to obtain the second digital signal.
Optionally, the radio receiver includes a signal demodulation unit, a down conversion unit and a digital signal processing unit, the down conversion unit respectively with the signal demodulation unit and the digital signal processing unit are connected, the signal demodulation unit is used for carrying out frequency selection on the radio signal to obtain an amplified signal of a preset frequency, the down conversion unit is used for carrying out frequency conversion processing or sampling processing after carrying out analog-to-digital conversion on the amplified signal of the preset frequency to obtain the first digital signal, and the digital signal processing unit is used for carrying out digital signal processing on the first digital signal to obtain the second digital signal.
Optionally, the signal demodulating unit includes a frequency selecting subunit, a first amplifying subunit, and a frequency mixing subunit, an input end of the frequency selecting subunit is connected to the radio receiving antenna, an output end of the frequency selecting subunit is connected to an input end of the first amplifying subunit, an output end of the first amplifying subunit is connected to an input end of the frequency mixing subunit, and an output end of the frequency mixing subunit is connected to the down-conversion unit.
Optionally, the down-conversion unit includes a first analog-to-digital conversion subunit and a first down-conversion subunit, an input end of the first analog-to-digital conversion subunit is connected to the signal demodulation unit, an output end of the first analog-to-digital conversion subunit is connected to an input end of the first down-conversion subunit, and an output end of the first down-conversion subunit is connected to the device terminal.
Optionally, the down-conversion unit further includes a second down-conversion subunit, an input end of the second down-conversion subunit is connected to an output end of the first down-conversion subunit, and an output end of the second down-conversion subunit is connected to the device terminal.
Optionally, the down-conversion unit includes a second analog-to-digital conversion subunit and a first sampling subunit, an input end of the second analog-to-digital conversion subunit is connected to the signal demodulation unit, an output end of the second analog-to-digital conversion subunit is connected to an input end of the first sampling subunit, and an output end of the first sampling subunit is connected to the device terminal.
Optionally, the terminal security module includes a storage unit, a card reading unit and an encryption unit, the storage unit is connected to the card reading unit, the card reading unit is connected to the encryption unit, and the encryption unit is connected to the device terminal.
Optionally, the device terminal is a PC, a notebook computer, or a tablet computer.
In another aspect, an embodiment of the present invention provides a radio monitoring system, where the radio monitoring system includes a background terminal and the radio monitoring apparatus described above, the background terminal is connected to the radio monitoring apparatus, and the background terminal is configured to obtain monitoring data of the radio monitoring apparatus from the radio monitoring apparatus.
The invention has the following beneficial effects: the radio monitoring device and the radio monitoring system provided by the embodiment of the invention have the advantages that the radio receiving module and the equipment terminal are arranged in the shell, the terminal security module is a peripheral device, the equipment terminal is respectively connected with the radio receiving module and the terminal security module, the terminal security module is used for carrying out security protection on a system, application software and data of the equipment terminal, the radio receiving module is used for receiving radio signals and carrying out preprocessing on the radio signals to obtain first digital signals and carrying out digital signal processing on the first digital signals to obtain second digital signals, and the equipment terminal is used for carrying out demodulation processing, interpretation processing or decoding processing on the second digital signals to obtain original information transmitted by the radio signals and displaying the original information. Therefore, the radio monitoring instrument is convenient to carry and use, high radio monitoring effect and quality are achieved, and the problems that in the prior art, due to the fact that radio monitoring is completed by different devices, the radio monitoring effect and quality are affected by incomplete functions, incapability of on-site analysis and processing, poor mobility, unsafe processing result data and the like are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 shows a block diagram of a radio monitoring apparatus provided in an embodiment of the present invention;
fig. 2 shows a block diagram of a terminal security module of a radio monitoring apparatus according to an embodiment of the present invention;
FIG. 3 is a block diagram of another embodiment of a radio monitoring device;
FIG. 4 is a block diagram of a radio monitoring apparatus according to an embodiment of the present invention;
fig. 5 shows a block diagram of a signal demodulation unit of a radio monitoring apparatus according to an embodiment of the present invention;
fig. 6 shows a block diagram of a down-conversion unit of a radio monitoring apparatus according to an embodiment of the present invention;
fig. 7 is a block diagram illustrating another structure of a down-conversion unit of a radio monitoring apparatus according to an embodiment of the present invention;
fig. 8 shows a block diagram of a radio monitoring system provided in an embodiment of the present invention.
Icon: 100-a radio monitoring device; 110-a radio receiving module; 120-a radio receiving antenna; 130-a radio receiver; 140-a signal demodulation unit; 141-a frequency selection subunit; 142-a first amplification subunit; 143-a mixing subunit; 150-a down-conversion unit; 151-a first analog-to-digital conversion subunit; 152-a first downconversion subunit; 153-a second down-conversion subunit; 154-a second analog-to-digital conversion subunit; 155-a first sampling subunit; 160-digital signal processing unit; 170-equipment terminal; 180-terminal security module; 181 — a storage unit; 182-a card reading unit; 183-encryption unit; 200-a radio monitoring system; 210-background termination.
Detailed Description
The radio monitoring in the prior art is completed by different devices, and the radio monitoring system has the problems of single function, unmatched devices, low intelligent level, poor mobility, incapability of on-site analysis and processing, unsafe processing result data and the like, which influence the effect and quality of radio monitoring.
In view of the above, the inventors have conducted long-term research and extensive practice to provide a radio monitoring apparatus and system to improve the existing problems.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
First embodiment
A first embodiment of the present invention provides a radio monitoring apparatus 100, and referring to fig. 1, the radio monitoring apparatus 100 includes a radio receiving module 110, a device terminal 170, and a terminal security module 180. Wherein the device terminal 170 is connected with the radio receiving module 110 and the terminal security module 180, respectively. The radio receiving module 110 and the device terminal 170 are disposed in a housing, and the terminal security module 180 is a peripheral device.
Further, the terminal security module 180 is configured to perform security protection on a system, application software, and data of the device terminal 170; the radio receiving module 110 is configured to receive a radio signal, preprocess the radio signal to obtain a first digital signal, and perform digital signal processing on the first digital signal to obtain a second digital signal; the device terminal 170 is configured to perform demodulation processing, interpretation processing, or decoding processing on the second digital signal, obtain a radio signal transmission original signal, and display original information.
Specifically, the device terminal 170 and the radio receiving module 110 may be integrated into a chassis, and the chassis is provided with interfaces corresponding to the device terminal 170 and the radio receiving module 110. The terminal security module 180 is connected to an interface of the device terminal 170.
In the embodiment of the present invention, the device terminal 170 may be a PC, a notebook computer, or a tablet computer. Of course, when the device terminal 170 is a PC, the PC may be externally connected with a speaker device, a display device, etc. so as to display the original information transmitted by the radio signal. Of course, the specific type of the device terminal 170 is not limited in the embodiment of the present invention.
As a preferred embodiment, the device terminal 170 may be a fully rugged, three proof notebook computer. The protective performance of the casing of the all-solid three-prevention notebook computer needs to meet the requirements of continuous and stable use under various severe climates and power supply conditions, and the indexes of main components need to reach the standard of military grade indexes. The fully-solid three-proofing notebook computer has good anti-falling, waterproof and dustproof performances.
In the embodiment of the present invention, referring to fig. 2, the terminal security module 180 includes a storage unit 181, a card reading unit 182, and an encryption unit 183. The storage unit 181 is connected to the card reading unit 182, the card reading unit 182 is connected to the encryption unit 183, and the encryption unit 183 is connected to the device terminal 170.
Specifically, the storage unit 181 may be a TF card, and the storage space thereof may be 32G to 2T. The card reading unit 182 may be a GL823 chip. The encryption unit 183 may be a TF32a09 chip. Of course, the specific types of the storage unit 181, the card reading unit 182 and the encryption unit 183 are not limited in the embodiment of the present invention.
The terminal security module 180 can control the start of the computer operating system, and when the user does not connect the terminal security module 180 to the device terminal 170, the normal start of the operating system of the device terminal 170 cannot be realized.
The terminal security module 180 may lock the application software, and when the user does not connect the terminal security module 180 to the device terminal 170, the corresponding application software of the device terminal 170 cannot be used normally.
The terminal security module 180 may also encrypt important information such as data and documents, and when the user does not connect the terminal security module 180 to the device terminal 170, the encrypted information cannot be normally interpreted.
Thus, system, application software and data security protection of the device terminal 170 of the radio monitoring apparatus 100 can be achieved.
In the embodiment of the present invention, referring to fig. 3, the radio receiving module 110 may include a radio receiving antenna 120 and a radio receiver 130. The radio receiving antenna 120 may be connected to the radio receiver 130, and the radio receiver 130 may be connected to the device terminal 170. The radio receiving antenna 120 is used to receive a radio signal and transmit the received radio signal to the radio receiver 130. The radio receiver 130 is configured to pre-process the radio signal received by the radio receiving antenna 120 to obtain a second digital signal.
In radio technology, a common radio receiving antenna 120 has a narrow band standing wave antenna whose antenna impedance varies greatly with the operating frequency. For example, the narrow-band standing wave antenna may be a whip antenna, a mast antenna, a T-antenna, an inverted-L antenna, a slant antenna, a dipole antenna, a helical antenna, a vehicle loop antenna, or the like.
The conventional radio receiving antenna 120 also has a traveling wave broadband antenna whose antenna impedance varies little in a wide frequency band. For example, the traveling-wave broadband antenna may be a cage antenna, a diamond antenna, a log-periodic antenna, a folded dipole broadband antenna, a loaded sector broadband antenna, or the like.
The conventional radio receiving antenna 120 also has an ultra high frequency antenna. For example, the uhf antenna may be a dipole antenna, a yagi antenna, a logarithmic antenna, a helical antenna, or the like.
In the embodiment of the present invention, the radio receiving antenna 120 may be a multiband combined type high-gain small antenna. The frequency range may be any one of 9kHz to 7.5 GHz. For example, the frequency range of the radio receiving antenna 120 may be 9kHz to 20MHz, 20MHz to 200MHz, 200MHz to 500MHz, or 500MHz to 7.5 GHz. The specific frequency range of the radio receiving antenna 120 may be selected according to practical circumstances.
In the embodiment of the present invention, referring to fig. 4, the radio receiver 130 may include a signal demodulation unit 140, a down-conversion unit 150, and a digital signal processing unit 160. Down converter 150 is connected to signal demodulator 140 and digital signal processor 160, respectively. The signal demodulation unit 140 is configured to perform frequency selection on the radio signal received by the radio receiving module 110 to obtain an amplified signal with a preset frequency. The down-conversion unit 150 is configured to perform analog-to-digital conversion on the amplified signal with the preset frequency obtained by the signal demodulation unit 140, and then perform frequency conversion processing or sampling processing to obtain a first digital signal. The digital signal processing unit 160 is configured to perform digital signal processing on the first digital signal obtained by the down-conversion unit 150 to obtain a second digital signal, and input the second digital signal to the device terminal 170.
It will be appreciated that the predetermined frequency is an intermediate frequency. The signal demodulation unit 140 mainly performs filtering and amplification on a radio signal, performs frequency mixing processing with a local oscillator signal, and converts a radio frequency RF signal into an intermediate frequency IF signal. The down-conversion unit 150 implements a digital down-conversion process.
Further, referring to fig. 5, the signal demodulating unit 140 includes a frequency selecting subunit 141, a first amplifying subunit 142 and a mixing subunit 143, wherein an input terminal of the frequency selecting subunit 141 is connected to the radio receiving antenna 120, an output terminal of the frequency selecting subunit 141 is connected to an input terminal of the first amplifying subunit 142, an output terminal of the first amplifying subunit 142 is connected to an input terminal of the mixing subunit 143, and an output terminal of the mixing subunit 143 is connected to the down-converting unit 150.
Specifically, the frequency selection subunit 141 may be a pre-selector or a low-pass filter. The pre-selector and low pass filter are used to achieve filtering out unwanted signals other than the band limited signal.
Wherein, the frequency range selected by the preselector can be 50 MHz-3500 MHz. The specific selection range can be adjusted according to actual conditions, for example, 50MHz to 115MHz is selected.
The frequency range selected by the low pass filter may be frequencies below 64 MHz.
After the frequency selection by the frequency selection unit, the signal is amplified by the first amplification subunit 142. The first amplification subunit 142 may be a preamplifier.
When the frequency selection unit is a low-pass filter, an attenuator may be further disposed between the frequency selection unit and the first amplification subunit 142 to adjust the magnitude of the signal.
Then, after being amplified by the first amplifying subunit 142, the signals are mixed by a mixer to obtain mixed signals, which are used as amplified signals with a set frequency. Also, the mixer enables the conversion of the radio frequency RF signal into an intermediate frequency IF signal.
In the embodiment of the present invention, the signal demodulation unit 140 may further include a second amplification subunit. The input end of the second amplifying subunit is connected to the output end of the frequency mixing subunit 143, and is configured to perform intermediate frequency amplification on the intermediate frequency IF signal obtained after the frequency mixing, so as to improve the selectivity and the sensitivity. The second amplification subunit may be an IF amplifier.
In the embodiment of the invention, a plurality of stages of mixers and intermediate frequency amplification subunits can be arranged. For example, after passing through the second amplifying subunit, the mixer is further configured to be connected to the output terminal of the second amplifying subunit, then the intermediate frequency amplifying subunit is further configured to be connected to the output terminal of the mixer, and then the signal output by the last stage of intermediate frequency amplifying subunit is input to the down-conversion unit 150.
In the embodiment of the present invention, as an implementation manner, referring to fig. 6, the down-conversion unit 150 includes a first analog-to-digital conversion subunit 151 and a first down-conversion subunit 152. The input end of the first analog-to-digital conversion subunit 151 is connected to the signal demodulation unit 140, the output end of the first analog-to-digital conversion subunit 151 is connected to the input end of the first frequency down-conversion subunit 152, and the output end of the first frequency down-conversion subunit 152 is connected to the device terminal 170.
Specifically, the first analog-to-digital conversion subunit 151 may be an analog-to-digital converter. The first analog-to-digital conversion subunit 151 performs analog-to-digital conversion on the amplified signal with the preset frequency input by the signal demodulation unit 140 to obtain a digital signal, and inputs the digital signal to the first down-conversion subunit 152. The first down-conversion subunit 152 may be a digital down-converter.
As an embodiment, the digital down-converter may consist of a local oscillator, a mixer, and a low-pass filter that implements decimation.
After the first down-conversion subunit 152 performs digital down-conversion processing, a first digital signal is obtained and input to the digital signal processing unit 160.
Further, referring to fig. 6, the down-conversion unit 150 may further include a second down-conversion subunit 153, an input end of the second down-conversion subunit 153 is connected to an output end of the first down-conversion subunit 152, and an output end of the second down-conversion subunit 153 is connected to the device terminal 170. Down-conversion section 150 mainly performs digital down-conversion processing on the signal output from signal demodulation section 140.
It is understood that after being processed by the first down-conversion subunit 152, the second down-conversion subunit 153 may be further configured to perform digital down-conversion processing on the signal output by the first down-conversion subunit 152, and then output the signal to the device terminal 170. Of course, the number of the down-conversion subunits is not limited in the embodiment of the present invention.
In an embodiment of the present invention, as another implementation manner, please refer to fig. 7, the down-conversion unit 150 may include a second analog-to-digital conversion subunit 154 and a first sampling subunit 155, an input end of the second analog-to-digital conversion subunit 154 is connected to the signal demodulation unit 140, an output end of the second analog-to-digital conversion subunit 154 is connected to an input end of the first sampling subunit 155, and an output end of the first sampling subunit 155 is connected to the device terminal 170.
Specifically, the second analog-to-digital conversion subunit 154 is an analog-to-digital converter, and the second analog-to-digital conversion subunit 154 performs analog-to-digital conversion on the amplified signal with the preset frequency output by the signal demodulation unit 140 to obtain a digital signal, and then inputs the digital signal to the first sampling subunit 155 for sampling processing to obtain a first digital signal. The first sampling sub-unit 155 may be a spectrum snapshot sampler. Of course, the specific type of the first sampling subunit 155 is not limited in the embodiment of the present invention.
In the embodiment of the present invention, the Digital Signal Processing unit 160 may be a Digital Signal processor or a CPU, and the Digital Signal processor or the CPU may use Digital Signal Processing (DSP) software to implement low-pass filtering on the first Digital Signal and complete Signal extraction and channel refinement, so as to obtain the second Digital Signal. Finally, the second digital signal is input to the device terminal 170, so that the device terminal 170 demodulates, interprets, decodes, and the like the second digital signal to obtain the original information transmitted by the radio signal received by the radio receiving antenna 120.
In addition, in the embodiment of the present invention, a plurality of channels between the down-conversion unit 150 and the signal demodulation unit 140 may be provided in the radio receiver 130 to implement multi-channel processing, so as to increase the speed of signal processing.
In one embodiment, a plurality of down-conversion units 150 may be connected to the signal demodulation unit 140.
As another embodiment, a down-conversion unit 150 may be connected to the signal demodulation unit 140. The down-conversion unit 150 includes a plurality of first analog-to-digital conversion subunits 151 connected to the first down-conversion subunit 152, and the plurality of first analog-to-digital conversion subunits 151 are connected to the output terminal of the signal demodulation unit 140.
In an embodiment of the present invention, the device terminal 170 has stored therein a signal processing software program, such as a standard demodulation, interpretation, decoding program, and the like. The device terminal 170 is also provided with a broadband universal demodulator. The system can realize the processing of HF, VHF and UHF universal signals, realize the intelligent identification of the signals and the automatic interpretation, decoding and other processing of known signals, and can update the signal processing software program in real time. The translator may be defined and customized for a translator description language.
Thus, the second digital signal obtained by the radio receiving module 110 can be sent to the buffer of the device terminal 170, and the device terminal 170 can perform decoding processing, interpretation processing or decoding processing on the second digital signal obtained by the radio receiving module 110 to obtain the original information transmitted by the radio signal.
For example, the device terminal 170 performs interpretation processing on the second digital signal corresponding to the image to obtain the original image information transmitted by the radio signal; the device terminal 170 demodulates the second digital signal corresponding to the sound to obtain the original voice information transmitted by the radio signal; the device terminal 170 decodes the second digital signal corresponding to the text to obtain the original text information transmitted by the radio signal.
The device terminal 170 may also display a display interface for human-computer interaction in the display device, display an image or text corresponding to the original signal, and display an operation interface for radio monitoring. And an FFT spectrogram, a constellation diagram, a waterfall diagram and the like corresponding to the radio signal can be obtained based on the original signal for displaying.
The device terminal 170 may also implement visual image, audible voice and text readable of the processing result after monitoring the radio signal, so as to facilitate the monitoring personnel to analyze and research the processing result.
The speaker module of the device terminal 170 may also play the sound corresponding to the original signal.
The device terminal 170 may also store the monitored spectrum data in a database for query, and store the audio files, spectrograms, and the like in the processing result in a memory for viewing.
In an embodiment of the present invention, the radio monitoring device 100 may further include a power supply. The power supply may be connected to the radio receiving module 110 and the device terminal 170, respectively. To enable power supply to the radio receiving module 110 and the device terminal 170.
The radio monitoring apparatus 100 according to the first embodiment of the present invention has the advantages of small size, light weight, and multiple types of processed signals, and can display the processing result of the radio signal monitoring, so as to facilitate the analysis of the monitoring personnel. Moreover, the security function of the computer, the data, the document, the application system and the like is realized.
Second embodiment
Referring to fig. 8, the radio monitoring system includes a background terminal and the radio monitoring apparatus 100 according to the first embodiment of the present invention. Wherein, the background terminal is connected with the radio monitoring device 100. The background terminal may acquire the monitoring data of the radio monitoring apparatus 100 to the radio monitoring apparatus 100. For example, the radio monitoring apparatus 100 monitors the original signal corresponding to the radio signal, the strength of the radio signal, the position where the radio signal appears, and the like.
In summary, in the radio monitoring apparatus and the radio monitoring system provided in the embodiments of the present invention, the radio receiving module, the device terminal, and the terminal security module are disposed in a housing, the terminal security module is a peripheral device, the device terminal is connected to the radio receiving module and the terminal security module, the terminal security module is configured to perform security protection on a system, application software, and data of the device terminal, the radio receiving module is configured to receive a radio signal and perform preprocessing on the radio signal to obtain a first digital signal, and perform digital signal processing on the first digital signal to obtain a second digital signal, and the device terminal is configured to perform demodulation processing on the second digital signal to obtain original information transmitted by the radio signal, and display the original signal. Therefore, the radio monitoring instrument is convenient to carry and use, high radio monitoring effect and quality are achieved, the problems that radio monitoring in the prior art is completed by different devices, the function is single, the devices are not matched, the intelligent level is low, the mobility is poor, field analysis and processing cannot be conducted, the processing result data is not safe, and the effect and the quality of radio monitoring are affected are solved.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described above with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the above detailed description of the embodiments of the invention presented in the drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Claims (8)
1. A radio monitoring device, characterized in that the radio monitoring device comprises a radio receiving module, a device terminal and a terminal security module, wherein the device terminal is respectively connected with the radio receiving module and the terminal security module;
the radio receiving module and the equipment terminal are arranged in a shell;
the terminal security module is a peripheral device and is used for carrying out security protection on a system, application software and data of the equipment terminal; the terminal security module is connected with an interface of the equipment terminal;
the radio receiving module is used for receiving a radio signal, preprocessing the radio signal to obtain a first digital signal, and performing digital signal processing on the first digital signal to obtain a second digital signal;
the device terminal is used for demodulating, interpreting or decoding the second digital signal to obtain original information transmitted by the radio signal and displaying the original information;
the terminal security module is also used for forbidding an operating system included in the equipment terminal to be normally started when the terminal security module is not connected with the equipment terminal;
the terminal security module is also used for locking application software, and when the terminal security module is not connected to the equipment terminal, the normal use of the corresponding application software of the equipment terminal is forbidden;
the terminal security module is also used for encrypting important information such as data, documents and the like, and when the terminal security module is not connected with the equipment terminal, the encrypted information is forbidden to be normally read;
the radio receiving module comprises a radio receiving antenna and a radio receiver, the radio receiver comprises a signal demodulating unit, a down-converting unit and a digital signal processing unit, the down-converting unit is respectively connected with the signal demodulating unit and the digital signal processing unit, the signal demodulating unit is used for carrying out frequency selection on the radio signal to obtain an amplified signal with a preset frequency, the down-converting unit is used for carrying out frequency conversion processing or sampling processing on the amplified signal with the preset frequency after carrying out analog-to-digital conversion to obtain the first digital signal, the digital signal processing unit is used for carrying out digital signal processing on the first digital signal to obtain a second digital signal, wherein,
the radio receiver comprises a plurality of down-conversion units, and each down-conversion unit is connected with a signal demodulation unit;
a plurality of channels are arranged between the plurality of down-conversion units and the signal demodulation unit;
the signal demodulation unit comprises a frequency selection subunit, a first amplification subunit, a second amplification subunit and a frequency mixing subunit, wherein the input end of the frequency selection subunit is connected with the radio receiving antenna, the output end of the frequency selection subunit is connected with the input end of the first amplification subunit, the output end of the first amplification subunit is connected with the input end of the frequency mixing subunit, the output end of the frequency mixing subunit is connected with the down-conversion unit, and the frequency mixing subunit is connected with the down-conversion unit,
the frequency selection subunit comprises a preselector and a filter;
an attenuator is also arranged between the frequency selection unit and the first amplification subunit;
the mixing subunit comprises a mixer;
and the input end of the second amplification subunit is connected to the output end of the frequency mixing subunit.
2. The radio monitoring device according to claim 1, wherein the radio receiving antenna is connected to the radio receiver, the radio receiver is connected to the device terminal, the radio receiver is configured to receive a radio signal, and the radio receiver is configured to pre-process the radio signal to obtain the second digital signal.
3. The radio monitoring device according to claim 1, wherein the down-conversion unit comprises a first analog-to-digital conversion subunit and a first down-conversion subunit, an input of the first analog-to-digital conversion subunit is connected to the signal demodulation unit, an output of the first analog-to-digital conversion subunit is connected to an input of the first down-conversion subunit, and an output of the first down-conversion subunit is connected to the device terminal.
4. The radio monitoring device according to claim 3, wherein the down-conversion unit further comprises a second down-conversion subunit, an input of the second down-conversion subunit being connected to an output of the first down-conversion subunit, an output of the second down-conversion subunit being connected to the equipment terminal.
5. The radio monitoring device according to claim 1, wherein the down-conversion unit comprises a second analog-to-digital conversion subunit and a first sampling subunit, an input terminal of the second analog-to-digital conversion subunit is connected to the signal demodulation unit, an output terminal of the second analog-to-digital conversion subunit is connected to an input terminal of the first sampling subunit, and an output terminal of the first sampling subunit is connected to the equipment terminal.
6. The radio monitoring device according to claim 1, wherein the terminal security module comprises a storage unit, a card reading unit and an encryption unit, the storage unit is connected with the card reading unit, the card reading unit is connected with the encryption unit, and the encryption unit is connected with the equipment terminal.
7. The radio monitoring device according to claim 1, wherein the device terminal is a PC, a notebook, or a tablet.
8. A radio monitoring system, characterized in that the radio monitoring system comprises a background terminal and a radio monitoring device according to any of claims 1-7, the background terminal is connected with the radio monitoring device, and the background terminal is used for acquiring monitoring data of the radio monitoring device from the radio monitoring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711128071.XA CN107919925B (en) | 2017-11-15 | 2017-11-15 | Radio monitoring device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711128071.XA CN107919925B (en) | 2017-11-15 | 2017-11-15 | Radio monitoring device and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107919925A CN107919925A (en) | 2018-04-17 |
| CN107919925B true CN107919925B (en) | 2021-06-25 |
Family
ID=61896293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711128071.XA Active CN107919925B (en) | 2017-11-15 | 2017-11-15 | Radio monitoring device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107919925B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113949398A (en) * | 2021-10-18 | 2022-01-18 | 海南暗宙科技有限公司 | Portable intelligent short wave signal receiving and processing device and method and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2694362Y (en) * | 2004-01-06 | 2005-04-20 | 昆盈企业股份有限公司 | Multi-frequency wireless signal receiver of computer peripheral equipment |
| CN1996321A (en) * | 2006-11-03 | 2007-07-11 | 威海渔翁科技开发有限公司 | Encryption card based on PCI Express bus technology |
| CN101014103A (en) * | 2007-02-13 | 2007-08-08 | 鼎芯通讯（上海）有限公司 | Digital multimedia reception device |
| CN105049076A (en) * | 2015-08-25 | 2015-11-11 | 四川九洲电器集团有限责任公司 | Software radio communication method and system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100751938B1 (en) * | 2005-07-23 | 2007-08-24 | 엘지전자 주식회사 | Mobile handset platform including replaceable rf card, and data service system for using said replaceable rf card and method thereof |
| CN101650764B (en) * | 2009-09-04 | 2011-08-24 | 瑞达信息安全产业股份有限公司 | Creditable calculation password platform and realization method thereof |
-
2017
- 2017-11-15 CN CN201711128071.XA patent/CN107919925B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2694362Y (en) * | 2004-01-06 | 2005-04-20 | 昆盈企业股份有限公司 | Multi-frequency wireless signal receiver of computer peripheral equipment |
| CN1996321A (en) * | 2006-11-03 | 2007-07-11 | 威海渔翁科技开发有限公司 | Encryption card based on PCI Express bus technology |
| CN101014103A (en) * | 2007-02-13 | 2007-08-08 | 鼎芯通讯（上海）有限公司 | Digital multimedia reception device |
| CN105049076A (en) * | 2015-08-25 | 2015-11-11 | 四川九洲电器集团有限责任公司 | Software radio communication method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107919925A (en) | 2018-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104104400B (en) | The spaceborne ADS-B Signal reception machine of highly sensitive | |
| US20080231495A1 (en) | Multipurpose peripheral device for receiving signals | |
| KR20170065907A (en) | Electronic device including single antenna supporting a plurality of communication protocols and operating method thereof | |
| CN101420235A (en) | Automatic antenna identification and configuration, and device including the same | |
| CN101871970A (en) | Wireless terminal and signal scanning method thereof | |
| CN110705450A (en) | Passive unmanned aerial vehicle detection device | |
| CN107919925B (en) | Radio monitoring device and system | |
| Danymol et al. | Real-time communication system design using RTL-SDR and Raspberry Pi | |
| CN202334510U (en) | Transceiver for millimeter wave active personnel safety inspection device | |
| RU68825U1 (en) | MULTI-PURPOSE PERIPHERAL SIGNAL RECEIVING DEVICE | |
| US20130281069A1 (en) | Device with multiple cue modules | |
| Santos-Luna et al. | A spectrum analyzer based on a low-cost hardware-software integration | |
| CN205581153U (en) | Machine is consolidated in electromagnetic environment test | |
| US9716776B2 (en) | Physical keyboard and network access method | |
| CN107888214B (en) | Electronic equipment and audio playing system | |
| CN104168056B (en) | A kind of satellite communication terminal based on Andriod operating systems | |
| CN106028293A (en) | Digital cluster handset | |
| CN106919880A (en) | Radiofrequency signal audiomonitor | |
| CN205354044U (en) | Radiofrequency signal audiomonitor | |
| KR100582889B1 (en) | Zigbee packet analyzer | |
| CN208607362U (en) | A kind of traffic location panel handheld terminal | |
| CN101556332A (en) | Life detecting ball life searching device used for earthquake rescue | |
| US20040072542A1 (en) | Communication device with integration in separate transmitter and receiver antennas | |
| CN212514998U (en) | Portable short wave and ultrashort wave monitoring equipment | |
| US12021301B2 (en) | Antenna gooseneck device and communication system to mitigate near-field effects of co-localized antennas on portable radio products and methods of use thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |