Spectrum Monitoring Method and Apparatus, Computer Device, and Computer Readable Storage Medium

Abstract

The present invention relates to the field of radio monitoring technology, and discloses a spectrum monitoring method, a spectrum monitoring device, a computer device, and a computer-readable storage medium. Among them, the spectrum monitoring method includes: scanning the spectrum to obtain a target spectrum; identifying whether an abnormal signal is included in the target spectrum; if an abnormal signal is included in the target spectrum, extracting the abnormal signal; obtaining the modulation mode corresponding to the abnormal signal; demodulating the abnormal signal according to the modulation mode corresponding to the abnormal signal; and storing the demodulated abnormal signal. The spectrum monitoring method provided by the embodiments of the present invention can realize automatic monitoring of the spectrum, without arranging manpower and material resources for 24-hour duty, which can liberate a large number of manual analysis operations, realize automatic processing of spectrum monitoring, and at the same time provide detailed monitoring data for subsequent analysis and processing.

Description

Technical Field

[0001] The present invention relates to the technical field of radio monitoring, and in particular, to a spectrum monitoring method, a spectrum monitoring device, a computer device, and a computer-readable storage medium. Background Art

[0002] Existing radio monitoring systems usually require people to stare at computer screens to view spectrum data. When an abnormal signal is detected, manual analysis is performed on the abnormal signal to achieve spectrum data monitoring. Existing manual monitoring requires people to be arranged to monitor abnormal signals 24 hours a day, consuming manpower and material resources. Most black broadcasts usually occur at night, so more manpower and material resources are required to monitor the spectrum. Summary of the Invention

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present invention provides a spectrum monitoring method, a spectrum monitoring device, a computer device, and a computer-readable storage medium.

[0004] In a first aspect, the present invention provides a spectrum monitoring method, including:

[0005] Scanning a spectrum to obtain a target spectrum;

[0006] Identifying whether an abnormal signal is included in the target spectrum;

[0007] If the abnormal signal is included in the target spectrum, extracting the abnormal signal;

[0008] Obtaining a modulation mode corresponding to the abnormal signal;

[0009] Demodulating the abnormal signal according to the modulation mode corresponding to the abnormal signal;

[0010] Storing the demodulated abnormal signal.

[0011] Optionally, the storing the demodulated abnormal signal includes: judging the number of the abnormal signals. If the number of the abnormal signals is greater than or equal to two, then:

[0012] Calculating a recording duration of each abnormal signal;

[0013] Recording and storing the abnormal signal according to the recording duration.

[0014] Optionally, the recording and storing the abnormal signal according to the recording duration includes:

[0015] Recording each abnormal signal alternately according to the recording duration and storing the abnormal signal.

[0016] Optionally, calculating the recording duration of each of the abnormal signals includes:

[0017] Obtaining a preset minimum recording duration, a maximum recording duration, the number of receiving channels, and the number of abnormal signals to be recorded, and allocating the recording duration for each of the abnormal signals; or,

[0018] Obtaining the intensity of the abnormal signal, and allocating the recording duration for each of the abnormal signals according to the intensity of the abnormal signal.

[0019] Optionally, after storing the demodulated abnormal signals, the method further includes:

[0020] Obtaining audio data in the demodulated abnormal signals;

[0021] Converting the audio data into a text file;

[0022] Storing the text file.

[0023] Optionally, the method further includes:

[0024] Analyzing keywords in the text file;

[0025] Obtaining valid audio data according to the keywords and preset rules.

[0026] Optionally, identifying whether the target spectrum contains an abnormal signal includes:

[0027] Obtaining a conventional spectrum within a preset duration at the sampling location;

[0028] Obtaining the signal energy of the conventional spectrum, recording the signal energy peak value of the conventional spectrum, and calculating a preset threshold value of the abnormal signal energy according to the signal energy of the conventional spectrum;

[0029] Comparing the preset threshold value, the signal energy peak value of the conventional spectrum with the signal energy of the target spectrum;

[0030] If the signal energy of the target spectrum is greater than the preset threshold value, and the signal energy peak value of the target spectrum is not equal to the signal energy peak value of the conventional spectrum, then it is confirmed that the target spectrum is an abnormal signal.

[0031] In a second aspect, the present invention provides a spectrum monitoring device, including:

[0032] A target spectrum module, configured to scan a spectrum to obtain a target spectrum;

[0033] An abnormal signal module, configured to identify whether the target spectrum contains an abnormal signal; if there is an abnormal signal, extract the abnormal signal;

[0034] A storage module, which is used to obtain the modulation method corresponding to the abnormal signal; demodulate the abnormal signal according to the modulation method corresponding to the abnormal signal; and store the demodulated abnormal signal.

[0035] In a third aspect, the present invention provides a computer device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the following steps are implemented:

[0036] Scan the spectrum to obtain a target spectrum;

[0037] Identify whether the target spectrum contains an abnormal signal;

[0038] If the target spectrum contains the abnormal signal, extract the abnormal signal;

[0039] Obtain the modulation method corresponding to the abnormal signal;

[0040] Demodulate the abnormal signal according to the modulation method corresponding to the abnormal signal;

[0041] Store the demodulated abnormal signal.

[0042] In a fourth aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0043] Scan the spectrum to obtain a target spectrum;

[0044] Identify whether the target spectrum contains an abnormal signal;

[0045] If the target spectrum contains the abnormal signal, extract the abnormal signal;

[0046] Obtain the modulation method corresponding to the abnormal signal;

[0047] Demodulate the abnormal signal according to the modulation method corresponding to the abnormal signal;

[0048] Store the demodulated abnormal signal.

[0049] The above technical solutions provided by the embodiments of the present invention have the following advantages compared with the prior art:

[0050] The spectrum monitoring method provided by the embodiment of the present invention includes: scanning the spectrum to obtain the target spectrum; identifying whether an abnormal signal is included in the target spectrum; if an abnormal signal is included in the target spectrum, extracting the abnormal signal; obtaining the modulation method corresponding to the abnormal signal; demodulating the abnormal signal according to the modulation method corresponding to the abnormal signal; and storing the demodulated abnormal signal. Using the spectrum monitoring method provided by the embodiment of the present invention, automatic control of the spectrum can be realized, without arranging manpower and material resources for 24-hour duty, which can liberate manpower for a large number of analysis operations, realize the automatic processing of spectrum monitoring, and at the same time provide detailed monitoring data for subsequent spectrum analysis and processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The accompanying drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present invention and used together with the specification to explain the principles of the present invention.

[0052] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0053] Figure 1 is a flowchart of the spectrum monitoring method provided by the embodiment of the present invention;

[0054] Figure 2 is a schematic structural diagram of the spectrum monitoring device provided by the embodiment of the present invention;

[0055] Figure 3 is an internal structure diagram of the computer device in the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0056] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0057] An embodiment of the present invention provides a spectrum monitoring method, including: scanning a spectrum to obtain a target spectrum; identifying whether an abnormal signal is included in the target spectrum; if an abnormal signal is included in the target spectrum, extracting the abnormal signal; obtaining the modulation method corresponding to the abnormal signal; demodulating the abnormal signal according to the modulation method corresponding to the abnormal signal; storing the demodulated abnormal signal. In this way, according to the monitoring conditions preset by the user, through the abnormal detection function of the device, abnormal signals are monitored in real time, and the narrowband analysis channel is automatically allocated to automatically identify, automatically locate, automatically demodulate and other processes for the abnormal signals. At the same time, relevant data is recorded for subsequent further analysis and research. The specific implementation method is as follows:

[0058] Reference Figure 1 , Figure 1 is a flowchart of the spectrum monitoring method provided by the embodiment of the present invention, and the method includes the following steps:

[0059] S101: Scan the spectrum to obtain a target spectrum.

[0060] Among them, obtain a relatively wide frequency band, scan the signals in the frequency band, and perform sub-band scanning on the relatively wide frequency band according to the user's settings. The sub-band scanning can be a frequency band manually selected by the user. For example, the frequency band manually selected by the user is 60 MHz or 40 MHz. It is also possible to pre-set multiple frequency band selection modes, randomly or customizing the selection mode of frequency band scanning. In this way, it is not necessary to scan the entire relatively wide frequency band, only need to divide the frequency band into multiple segments, and select several of them as the target frequency band. After obtaining the target frequency band, scan the signals in the target frequency band.

[0061] S102: Identify whether an abnormal signal is included in the target spectrum; if an abnormal signal is included in the target spectrum, extract the abnormal signal.

[0062] Among them, identifying whether an abnormal signal is included in the target spectrum includes: obtaining the normal spectrum within a predetermined time length at the sampling location; obtaining the signal energy of the normal spectrum, recording the signal energy peak value of the normal spectrum, and calculating the preset threshold value of the abnormal signal energy according to the signal energy of the normal spectrum; comparing the preset threshold value, the signal energy peak value of the normal spectrum with the signal energy of the target spectrum; if the signal energy of the target spectrum is greater than the preset threshold value, and the signal energy peak value of the target spectrum is not equal to the signal energy peak value of the normal spectrum, then confirm that the target spectrum is an abnormal signal.

[0063] Specifically, the conventional spectrum has two functions: one is to obtain the signal energy within a predetermined time period at the sampling location, calculate the average value of the signal energy, and obtain the average value of the signal energy at the sampling location, which is equivalent to the threshold value. By determining whether the signal energy of the target spectrum is greater than the threshold value, it can be determined whether the target spectrum contains abnormal signals. The other is to obtain the signal energy within a predetermined time period at the sampling location, and it may obtain the peak value of the effective signal that appears regularly. For example, for the radio signal of a conventional ship, when the ship passes through the sampling location, the radio signal transmitted is a high-energy signal, which can be detected, but it is not very meaningful to monitor this spectrum, so interference needs to be excluded.

[0064] The conventional spectrum can also be a spectrum obtained by calculating the spectrum data of a certain place over the years, or a spectrum obtained by selecting a regional range, such as a coastal area or a mountain forest area, for spectrum monitoring.

[0065] S103: Obtain the modulation method corresponding to the abnormal signal; demodulate the abnormal signal according to the modulation method corresponding to the abnormal signal; store the demodulated abnormal signal.

[0066] Among them, storing the demodulated abnormal signal includes: judging the number of abnormal signals. If the number of abnormal signals is greater than or equal to two, then:

[0067] Calculate the recording duration of each abnormal signal;

[0068] Record and store the abnormal signal according to the recording duration.

[0069] Recording and storing the abnormal signal according to the recording duration includes: alternately recording each abnormal signal according to the recording duration and storing the abnormal signal. Among them, alternate recording means recording a segment of signal A, then recording a segment of signal B, and then switching to recording a segment of signal A, and so on for alternate recording. Of course, it is also possible to record a segment of signal A, then record a segment of signal B, then record a segment of signal C, continue to record a segment of signal A, then record a segment of signal B, and then record a segment of signal C, that is, these three segments of signals are alternately recorded.

[0070] Specifically, calculating the recording duration of each abnormal signal includes: obtaining the preset minimum recording duration, maximum recording duration, number of receiving channels, and number of abnormal signals to be recorded, and allocating the recording duration of each abnormal signal.

[0071] Calculate the recording duration of the abnormal signal. The formula for the recording duration is time = min + (max - min) * channels / count; where time is the recording duration, min is the minimum recording duration, max is the maximum recording duration, channels is the number of available channels, and count is the number of abnormal signals to be processed currently. For example: min = 30; max = 3 * 60 = 180; channels = 2; count = 10, then time = 30 + 150 * 2 / 10 = 60 seconds. For 2 channels and 10 abnormal signals, each abnormal signal is recorded for 1 minute, and after recording for about 5 minutes, it loops once.

[0072] In practical applications, if the number of abnormal signals is too large, the recording will be carried out according to the minimum recording duration set by the user. For example, if the user sets the minimum recording duration to 1 minute, then each abnormal signal will be recorded for 1 minute, and then other abnormal signals will be rotated. The user can set the shortest recording duration and the longest recording duration, and then the server will dynamically adjust within a suitable range according to the number of abnormal signals to be processed during operation. For example, the shortest is 30 seconds and the longest is 3 minutes, then the recording duration is dynamically adjusted within this range.

[0073] In a specific embodiment, calculating the recording duration of each abnormal signal includes: obtaining the intensity of the abnormal signal, and allocating the recording duration of each abnormal signal according to the intensity of the abnormal signal.

[0074] Specifically, the intensity of the abnormal signal can be the power of the received signal.

[0075] Before storing the demodulated abnormal signal, the method further includes: determining whether the abnormal signal is noise; if the abnormal signal is noise, then deleting the abnormal signal. In this way, the demodulated abnormal signal is analyzed by an artificial intelligence algorithm. If it is found to be noise, it can be automatically deleted to avoid retaining useless data and thus interfering with subsequent analysis.

[0076] Specifically, after storing the demodulated abnormal signal, the method further includes: obtaining the audio data in the demodulated abnormal signal; converting the audio data into a text file; storing the text file. In this way, it is convenient for subsequent manual analysis of the demodulated abnormal signal, and the text file is also convenient for quick viewing. Of course, the stored text file can also be recognized by an algorithm to identify the text file for automatic discrimination. In practical applications, the method further includes: analyzing the keywords in the text file; obtaining the valid audio data according to the keywords. In this way, the audio data can also be converted into a text file for text analysis, and some keywords can be found and recorded for subsequent manual verification or automated verification.

[0077] Specifically, the modulation methods of the signals include at least one of AM, FM, 2ASK, 2FSK, 4FSK, MSK, BPSK, QPSK, OQPSK, π / 4DQPSK, 8PSK, and 16QAM. Currently, the object of modulation is radio signals from 30 MHz to 3 GHz. In practical applications, it can also be radio signals from 20 MHz to 6 GHz.

[0078] Reference Figure 2 , an embodiment of the present invention further provides a spectrum monitoring device, including:

[0079] A target spectrum module, which is used to scan the spectrum to obtain a target spectrum;

[0080] An abnormal signal module, which is used to identify whether the target spectrum contains abnormal signals; if the target spectrum contains abnormal signals, extract the abnormal signals;

[0081] A storage module, which is used to obtain the modulation method corresponding to the abnormal signal; demodulate the abnormal signal according to the modulation method corresponding to the abnormal signal; store the demodulated abnormal signal.

[0082] In this way, by using the spectrum monitoring device provided by the embodiment of the present invention, according to the monitoring conditions preset by the user, through the abnormal detection function of the device, abnormal signals can be monitored in real time, and the narrowband analysis channel can be automatically allocated to automatically identify, automatically locate, and automatically demodulate the abnormal signals. At the same time, relevant data is recorded for subsequent further analysis and research.

[0083] Reference Figure 3 , in an embodiment, a computer device is provided, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the following steps are implemented:

[0084] Scan the spectrum to obtain a target spectrum;

[0085] Identify whether the target spectrum contains abnormal signals;

[0086] If the target spectrum contains abnormal signals, extract the abnormal signals;

[0087] Obtain the modulation method corresponding to the abnormal signal;

[0088] Demodulate the abnormal signal according to the modulation method corresponding to the abnormal signal;

[0089] Store the demodulated abnormal signal.

[0090] In an embodiment, when the processor executes the computer program, the steps of the above method are also implemented, which will not be elaborated here.

[0091] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0092] Scan the spectrum to obtain a target spectrum;

[0093] Identify whether an abnormal signal is included in the target spectrum;

[0094] If an abnormal signal is included in the target spectrum, extract the abnormal signal;

[0095] Obtain the modulation method corresponding to the abnormal signal;

[0096] Demodulate the abnormal signal according to the modulation method corresponding to the abnormal signal;

[0097] Store the demodulated abnormal signal.

[0098] In one embodiment, when the computer program is executed by a processor, the steps of the above method are also implemented, which will not be elaborated here.

[0099] In one embodiment, a computer program product or a computer program is provided. The computer program product or the computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the following steps:

[0100] Scan the spectrum to obtain a target spectrum;

[0101] Identify whether an abnormal signal is included in the target spectrum;

[0102] If an abnormal signal is included in the target spectrum, extract the abnormal signal;

[0103] Obtain the modulation method corresponding to the abnormal signal;

[0104] Demodulate the abnormal signal according to the modulation method corresponding to the abnormal signal;

[0105] Store the demodulated abnormal signal.

[0106] In one embodiment, when the computer program product or the computer program is executed, the steps of the above method are also implemented, which will not be elaborated here.

[0107] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, storage, database, or other medium used in the embodiments provided in the present application can include non-volatile and / or volatile memories. Non-volatile memories can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memories can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and Rambus dynamic RAM (RDRAM), etc.

[0108] It should be noted that in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise", or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device that includes a series of elements includes not only those elements but also other elements that are not explicitly listed, or elements that are inherent to such process, method, article, or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article, or device that includes the element.

[0109] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A spectrum monitoring method, characterized in that, it includes: Scanning the spectrum to obtain a target spectrum; wherein, the way of scanning the spectrum is a sub-band scanning method, the result of scanning the spectrum is to obtain a target band, the target spectrum is obtained by scanning the target band, and the target band includes a user-selected band, a random band, and a custom band; Identifying whether the target spectrum contains abnormal signals; If the target spectrum contains the abnormal signals, extracting the abnormal signals; Obtaining the modulation method corresponding to the abnormal signals; Demodulating the abnormal signals according to the modulation method corresponding to the abnormal signals; Storing the demodulated abnormal signals; Wherein, the storing the demodulated abnormal signals includes: judging the number of the abnormal signals, if the number of the abnormal signals is greater than or equal to two, then: Calculating the recording duration of each abnormal signal; Recording and storing the abnormal signals according to the recording duration; The calculating the recording duration of each abnormal signal includes: Obtaining a preset minimum recording duration, a maximum recording duration, the number of receiving channels, and the number of abnormal signals to be recorded, and allocating the recording duration of each abnormal signal; wherein, if the number of the abnormal signals is greater than a preset abnormal signal number threshold, recording is performed according to the minimum recording duration; Or, Obtaining the intensity of the abnormal signals, and allocating the recording duration of each abnormal signal according to the intensity of the abnormal signals; The calculation formula of the recording duration is: time = min+(max - min)*channels / count Wherein, time represents the recording duration, min represents the minimum recording duration, max represents the maximum recording duration, channels represents the number of receiving channels, and count represents the number of abnormal signals to be recorded; Before storing the demodulated abnormal signals, the method further includes: Judging whether the abnormal signals are noise; If the abnormal signals are noise, deleting the abnormal signals.

2. The spectrum monitoring method according to claim 1, characterized in that, The recording and storing the abnormal signals according to the recording duration includes: Alternately recording each abnormal signal according to the recording duration and storing the abnormal signals.

3. The spectrum monitoring method according to claim 1, characterized in that, After storing the demodulated abnormal signals, the method further includes: Obtaining audio data in the demodulated abnormal signals; Converting the audio data into a text file; Storing the text file.

4. The spectrum monitoring method according to claim 3, characterized in that, The method further includes: Analyzing keywords in the text file; Obtaining valid audio data according to the keywords and preset rules.

5. The spectrum monitoring method according to claim 1, characterized in that, The identifying whether the target spectrum contains abnormal signals includes: Obtaining a conventional spectrum within a preset duration at the sampling location; Obtain the signal energy of the conventional spectrum, record the peak value of the signal energy of the conventional spectrum, and calculate a preset threshold value of the abnormal signal energy based on the signal energy of the conventional spectrum; Compare the preset threshold value, the peak value of the signal energy of the conventional spectrum with the signal energy of the target spectrum; If the signal energy of the target spectrum is greater than the preset threshold value and the peak value of the signal energy of the target spectrum is not equal to the peak value of the signal energy of the conventional spectrum, then confirm that the target spectrum is an abnormal signal.

6. A spectrum monitoring device, characterized in that, comprising: A target spectrum module, which is used to scan the spectrum to obtain a target spectrum; wherein, the way of scanning the spectrum is a sub-band scanning method, the result of scanning the spectrum is to obtain a target band, the target spectrum is obtained by scanning the target band, and the target band includes a user-selected band, a random band, and a custom band; An abnormal signal module, which is used to identify whether the target spectrum contains an abnormal signal; if the target spectrum contains the abnormal signal, then extract the abnormal signal; A storage module, which is used to obtain the modulation method corresponding to the abnormal signal; demodulate the abnormal signal according to the modulation method corresponding to the abnormal signal; store the demodulated abnormal signal; Wherein, the storage module is specifically used for: judging the number of the abnormal signals, if the number of the abnormal signals is greater than or equal to two, then: Calculate the recording duration of each abnormal signal; Record and store the abnormal signal according to the recording duration; The calculating the recording duration of each abnormal signal includes: Obtain a preset minimum recording duration, a maximum recording duration, the number of receiving channels, and the number of abnormal signals to be recorded, and allocate the recording duration of each abnormal signal; wherein, if the number of abnormal signals is greater than a preset abnormal signal number threshold, then record according to the minimum recording duration; Or, Obtain the intensity of the abnormal signal, and allocate the recording duration of each abnormal signal according to the intensity of the abnormal signal; The calculation formula of the recording duration is: time = min+(max - min)*channels / count Where, time represents the recording duration, min represents the minimum recording duration, max represents the maximum recording duration, channels represents the number of receiving channels, and count represents the number of abnormal signals to be recorded; Before storing the demodulated abnormal signal, the device is further used for: Judge whether the abnormal signal is noise; If the abnormal signal is noise, then delete the abnormal signal.

7. A computer device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 5.

8. A computer-readable storage medium, on which a computer program is stored, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 5.

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