CN111026345A - Device and method for short wave data display control - Google Patents
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Abstract
The invention discloses a device and a method for short wave data display control, and relates to the device for short wave data display control, which comprises the following steps: the device comprises an acquisition module, an analysis module, a display module, an interaction control module and a storage module; the acquisition module is used for acquiring short wave data in real time; the analysis module is used for carrying out data decoding and format conversion on the acquired short wave data to generate a short wave data spectrogram; the display module is used for displaying a plurality of short wave data frequency spectrograms; the interactive control module is used for operating the plurality of displayed short wave data frequency spectrograms; and the storage module is used for storing the operated shortwave data spectrogram and the shortwave data spectrogram generated in the analysis module. The invention realizes the effect of simultaneously displaying the real-time collected data and the historical data, and is convenient for visually comparing and analyzing the data.
Description
Technical Field
The invention relates to the technical field of short wave data, in particular to a device and a method for short wave data display control.
Background
Short wave refers to radio wave with frequency of 3-30 MHz, and a technical method for revealing and analyzing signal and/or system characteristics in a frequency domain by using a spectrum analysis technology. The spectrum analysis technology is a common technology in short wave test work, can realize real-time processing of a broadband by utilizing Fast Fourier Transform (FFT), and has the characteristics of high processing speed, no signal omission and the like.
In short wave monitoring operation, invisible spectrum resources are usually displayed in the form of spectrogram, waterfall graph and the like, and usage data or channel occupancy of the spectrum indicates the time when a certain frequency or frequency band transmits signals within a specified measurement time interval. The abstract monitoring data can be rendered intuitive, graphically represented, and time and space varying physical phenomena to the observer for further analysis and processing.
For years, a large amount of historical data has been accumulated in the aspect of short-wave monitoring in China, but short-wave monitoring still faces some practical problems at present. For example, the business system is not tightly combined with practical monitoring work, the analysis and processing depth of monitoring data is not enough, and the like. The reason is mainly limited by the defect of single-class diversity of data display of the conventional short-wave monitoring system, and the requirement of short-wave data display on diversity of data mining in work is difficult to meet.
The existing short wave data display generally only displays a single spectrogram, is not rich enough in content, does not associate various display modes together, and cannot form a multi-level frequency spectrum or historical frequency spectrum data playback contrast display effect. The display content of the data is driven through interactive control operation, and the diversified display capability of the display mode is limited.
Disclosure of Invention
The invention aims to provide a device and a method for short wave data display control, aiming at the defects of the prior art, the FPGA is utilized to process high-speed large-scale signals, a large amount of high-speed short wave data are collected and processed in real time, display data are generated after data decoding and format conversion and are transmitted to an upper computer through a network, the upper computer receives a display data packet, then the short wave data are controlled and displayed in real time through a visualization technology, and interested signal data are subjected to frame selection and storage. And in the display module, the frequency spectrum data saved in history and the currently acquired real-time data can be displayed at the same time for comparison and analysis.
In order to achieve the purpose, the invention adopts the following technical scheme:
an apparatus for short wave data display control, comprising: the device comprises an acquisition module, an analysis module, a display module, an interaction control module and a storage module;
the acquisition module is used for acquiring short wave data in real time;
the analysis module is used for carrying out data decoding and format conversion on the acquired short wave data to generate a short wave data spectrogram;
the display module is used for displaying a plurality of short wave data frequency spectrograms;
the interactive control module is used for operating the plurality of displayed short wave data frequency spectrograms;
and the storage module is used for storing the operated shortwave data spectrogram and the shortwave data spectrogram generated in the analysis module.
Furthermore, the acquisition module acquires the real-time acquisition short wave data through the FPGA board card.
The system further comprises a reading module for reading the real-time collected short wave data;
the analysis module is used for analyzing and extracting the read short wave data to form displayable primary frequency spectrum data.
Further, the display module comprises a display of a primary spectrogram, a display of the primary spectrogram and a secondary spectrogram, a display of the primary spectrogram and a waterfall graph, and a display of a primary selected region spectrogram and a historical spectrogram.
Further, the interactive control module comprises a plurality of short wave data frequency spectrograms which are displayed, a first-level frequency spectrogram which is displayed is amplified, a display area in the display module is subjected to color setting, a plurality of short wave data frequency spectrograms which are displayed are subjected to interactive switching operation in a display mode, and a plurality of short wave data frequency spectrograms which are displayed are subjected to picking-up operation.
Further, the display modes in the interactive switching operation of the display modes of the plurality of displayed short wave data spectrograms comprise a dot graph, a line graph and an envelope graph.
Further, the primary spectrum data which can be displayed in the storage analysis module in the storage module is stored in a data storage thread mode.
Correspondingly, the method for controlling the short-wave data display is also provided, and comprises the following steps:
s1, acquiring short wave data in real time;
s2, carrying out data decoding and format conversion on the acquired short wave data to generate a short wave data spectrogram;
s3, displaying a plurality of short wave data frequency spectrograms;
s4, operating the plurality of displayed short wave data frequency spectrograms;
and S5, storing the operated short wave data spectrogram and the short wave data spectrogram generated in the analysis module.
Further, step S2 is preceded by:
reading real-time acquired short wave data;
the step S2 is specifically to analyze and extract the read short wave data to form displayable primary spectrum data.
Further, the displaying manner in step S3 includes displaying the primary spectrogram, displaying the primary spectrogram and the secondary spectrogram, displaying the primary spectrogram and the waterfall chart, and displaying the primary selected region spectrogram and the historical spectrogram.
Compared with the prior art, the short-wave display and control device of the integrated upper computer has good portability, universality and expandability. In the design of the display control method, the defect of single display of a spectrogram in a common spectrum analysis interface is overcome through the combination of various display contents, and the effect of simultaneously displaying a primary spectrogram and a waterfall chart is realized. Meanwhile, the effect of simultaneously displaying the real-time collected data and the historical data is achieved, and the data can be conveniently and visually compared and analyzed. After the signal data is sampled, analyzed and processed, the real-time performance of data display can be better guaranteed, and signal points are ensured not to be missed.
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FIG. 1 is a diagram of an apparatus for short-wave data display control according to an embodiment;
FIG. 2 is a schematic diagram of data acquisition of an upper computer according to the first embodiment;
FIG. 3 is a schematic diagram illustrating a data reading process of a host computer according to an embodiment;
fig. 4 is a schematic diagram of a short wave data display control interface, in which a primary spectrogram and a secondary spectrogram are displayed simultaneously according to an embodiment.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
The invention aims to provide a device and a method for short-wave data display control, aiming at the defects of the prior art.
Example one
The embodiment provides a device for short-wave data display control, which comprises an acquisition module, a reading module, an analysis module, a display module, an interaction control module and a storage module, as shown in fig. 1;
the acquisition module is used for acquiring short wave data in real time;
the reading module is used for reading real-time acquired short wave data;
the analysis module is used for carrying out data decoding and format conversion on the acquired short wave data to generate a short wave data spectrogram;
the display module is used for displaying a plurality of short wave data frequency spectrograms;
and the interactive control module is used for operating the plurality of displayed short wave data frequency spectrograms.
And the storage module is used for storing the operated short wave data spectrogram and the short wave data spectrogram generated in the analysis module.
And the acquisition module is used for acquiring short wave data in real time.
In this embodiment, the shortwave data transmission device includes an FPGA board card, a TOE network port, a motherboard network port, and an upper computer. And the upper computer software detects the TOE network in the window initialization stage. As shown in fig. 2, the data transmission process includes:
a socket library is initialized. Before connecting equipment, socket library operation needs to be initialized;
the closing module is used for closing the data port and the on-off detection port, releasing the TOE daughter card and closing the socket library;
the detection module is used for detecting the network connection state;
the first acquisition module is used for performing connection and disconnection control by acquiring the text information of the control, wherein the connection equipment control has two functions of connection and disconnection;
and the control module is used for controlling by acquiring control text information, wherein the start test button control has two functions of starting test and stopping test.
Among them, the FPGA (Field-Programmable Gate Array) is a product developed further on the basis of Programmable devices such as PAL, GAL, CPLD, etc. It is a semi-custom circuit in the field of Application Specific Integrated Circuit (ASIC), not only solves the shortage of custom circuit, but also overcomes the defect of limited gate circuit number of original programmable device
TOE refers to the processing of some or all of the packets using a dedicated processor on the network card. That is, by using a dedicated network card equipped with a TOE chip, the four-layer processing requests including TCP can be transferred from the host processor to the network card, and the end result is to improve the performance of the server while accelerating the network response.
Socket refers to TCP using the IP address of the host plus the port number on the host as the end point of the TCP connection. A socket is represented by (IP address: port number), which is an abstract representation of an endpoint in a network communication process, and contains five kinds of information necessary for network communication: the protocol used by the connection, the IP address of the local host, the protocol port of the local process, the IP address of the remote host, and the protocol port of the remote process.
In the embodiment, a large amount of high-speed short-wave data is acquired and processed in real time by utilizing the processing capability of the FPGA on high-speed large-scale signals.
And the reading module is used for reading the real-time acquisition short wave data.
In this embodiment, as shown in fig. 3, an operation flow of reading signal data from the FPGA card includes:
the reset module is used for resetting the FPGA and the FIFO;
the clearing module is used for clearing reset;
the empty reading module is used for reading an empty TOE cache;
the starting module is used for starting a data reading thread;
the trigger module is used for triggering FPGA data generation;
the second acquisition module is used for acquiring the data length of the FPGA;
and the stopping module is used for stopping the FPGA from generating data.
The FIFO is an abbreviation of First Input First Output, a First-in First-out queue, which is a traditional sequential execution method, wherein an instruction which enters First is completed and retired First, and then a second instruction is executed
And the analysis module is used for carrying out data decoding and format conversion on the acquired short wave data to generate a short wave data spectrogram.
In this embodiment, the analysis module specifically analyzes and extracts the read short wave data to form displayable primary spectrum data.
And the read short wave data is decoded and converted into display data, and the display data is uploaded to an upper computer through a network.
After data are read from the FPGA board card, the data are firstly analyzed into primary spectrum data. Taking 32784 bytes as an example of one frame data length (namely one frame spectrogram picture), two bytes correspond to one spectrum point, and the two bytes are converted into decimal and subjected to normalization processing to obtain an amplitude value which is used as a vertical coordinate and an amplitude interval (0-200 db); the abscissa value represents frequency, and depends on the position of the spectrum point in a frame of data, after the packet header is removed, the frequency range of the frame of data is (0-31.25 MHZ), which is the interval range of the abscissa.
And the display module is used for displaying a plurality of short wave data spectrograms.
In this embodiment, the upper computer receives the display data packet and then controls and displays the short wave data in real time through a visualization technology. The frequency spectrum data saved in history and the currently collected real-time data can be displayed at the same time for comparative analysis.
In the present embodiment, various displays are provided for the convenience of analyzing the signal data. The display module comprises display of a primary spectrogram, display of the primary spectrogram and a secondary spectrogram, display of the primary spectrogram and a waterfall graph, and display of a primary selected region spectrogram and a historical spectrogram.
In this embodiment, the fixed-length historical spectrogram is displayed by loop play, and the primary spectrogram is real-time data uploaded in the parsing module.
The specific display content comprises:
due to the limitation of the resolution of the upper computer screen (taking the pixel width of 1280px as an example), the number of the length points of the signal frame far exceeds the number of the pixel points of the screen width, and the sampling points can be repeatedly mapped to the same screen position. Preferably, the maximum amplitude value in the fixed frame length is selected as the amplitude value at the pixel point of the screen by sampling. The primary spectrogram is a curve formed by connecting all amplitude data;
and the primary spectrogram and secondary spectrogram display module is used for picking up a point on the primary spectrogram, and performing amplification display by taking the point as a center and 512 points as front-back intervals, wherein the bandwidth of the amplified point is calculated to be 1.953125 through 1024 × 31.25/16384. The initial default value is at the center of the primary spectrogram. Double-clicking a point on the primary spectrogram amplifies the spectrum centered at the point, which is called the secondary spectrogram. The specific display mode is as shown in fig. 4, and the primary spectrogram and the corresponding secondary spectrogram are displayed through an upper structure and a lower structure;
the cascade graph can effectively reflect the relationship among frequency, amplitude and time of data, the flowing direction of the cascade represents time, the width direction of the cascade represents frequency, and the amplitude value is mapped into pixel color values. In the display area of fig. 4, a primary spectrogram and a corresponding waterfall graph are simultaneously displayed through an upper structure and a lower structure;
and the first-level selection spectrogram and historical spectrogram display module loads the stored data, and simultaneously displays the first-level spectrogram and the historical spectrogram in the display area of FIG. 4 through an upper structure and a lower structure, so that the comparison and analysis of the current first-level spectrogram data and the historical spectrogram data are facilitated. The fixed-length historical spectrogram is displayed through circular playing, and the primary spectrogram is real-time data uploaded in the analysis module.
And the interactive control module is used for operating the displayed plurality of short wave data spectrograms.
In this embodiment, the upper computer receives the display data packet, controls and displays the short wave data in real time through a visualization technology, and performs framing operation on the interested signal data.
The interactive control module comprises a step of setting the amplitude of a plurality of displayed short wave data frequency spectrograms, a step of amplifying the displayed primary frequency spectrogram, a step of setting the color of a display area in the display module, a step of interactively switching the display modes of the plurality of displayed short wave data frequency spectrograms and a step of picking up the plurality of displayed short wave data frequency spectrograms. The display modes in the interactive switching operation of the display modes of the plurality of displayed short wave data frequency spectrograms comprise dot graphs, line graphs and envelope graphs.
The method specifically comprises the following steps:
and (3) carrying out amplification operation on the displayed primary spectrogram: the spectrogram can be amplified in the transverse direction and the longitudinal direction and can be displayed in a full screen manner, and the parameter panel can be hidden;
setting the amplitudes of a plurality of displayed short wave data frequency spectrograms: after the amplitude value is set, namely the longitudinal coordinate value changes, the frequency spectrum curve moves up and down along with the change of the longitudinal coordinate value;
color setting of a display area in a display module: setting the color of the display area, wherein the line color, the grid color and the background color of the spectrogram can be set;
carrying out interactive switching operation on the display modes of the plurality of displayed short wave data spectrograms: the display modes are switched interactively, and the display modes (dot graphs, line graphs and envelope graphs) of the spectrogram can be switched;
picking up a plurality of displayed short wave data spectrograms: and (4) picking up a spectrum point and displaying the point information in real time. The left mouse button can pick up a spectrum point on the primary spectrum curve and display the frequency and the amplitude of the point in real time.
And the storage module is used for storing the operated short wave data spectrogram and the short wave data spectrogram generated in the analysis module.
In this embodiment, the interested spectrum data may be destaged and stored in the hard disk of the local upper computer. And starting a data storage thread, storing the primary spectrum data with fixed time length after the primary spectrum data is analyzed and processed in the analysis module, and conveniently searching the primary spectrum selection chart and the historical spectrogram display module in the display module for data redisplay.
In this embodiment, the data saving thread is composed of multiple threads, which are a data acquisition thread, a data reading thread, a primary spectrum data display thread, a secondary spectrum data display thread, a waterfall graph display thread, and a data saving thread.
The short-wave display control device of the integrated upper computer has good portability, universality and expandability. In the design of the display control method, the defect of single display of a spectrogram in a common spectrum analysis interface is overcome through the combination of various display contents, and the effect of simultaneously displaying a primary spectrogram and a waterfall chart is realized. Meanwhile, the effect of simultaneously displaying the real-time collected data and the historical data is achieved, and the data can be conveniently and visually compared and analyzed. After the signal data is sampled, analyzed and processed, the real-time performance of data display can be better guaranteed, and signal points are ensured not to be missed.
Example two
The embodiment provides a method for short-wave data display control, which comprises the following steps:
s11, acquiring short wave data in real time;
s12, carrying out data decoding and format conversion on the acquired short wave data to generate a short wave data spectrogram;
s13, displaying a plurality of short wave data frequency spectrograms;
s14, operating the displayed short wave data frequency spectrograms;
and S15, storing the operated short wave data spectrogram and the short wave data spectrogram generated in the analysis module.
Further, before step S12, the method further includes:
reading real-time acquired short wave data;
step S12 is to analyze and extract the read short-wave data to form displayable primary spectrum data.
The display mode in step S13 includes display of the primary spectrogram, display of the primary spectrogram and the secondary spectrogram, display of the primary spectrogram and the waterfall chart, and display of the primary selected region spectrogram and the historical spectrogram.
It should be noted that, the method for controlling the display of the short-wave data in the embodiment is similar to the embodiment, and is not described herein again.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. An apparatus for short wave data display control, comprising: the device comprises an acquisition module, an analysis module, a display module, an interaction control module and a storage module;
the acquisition module is used for acquiring short wave data in real time;
the analysis module is used for carrying out data decoding and format conversion on the acquired short wave data to generate a short wave data spectrogram;
the display module is used for displaying a plurality of short wave data frequency spectrograms;
the interactive control module is used for operating the plurality of displayed short wave data frequency spectrograms;
and the storage module is used for storing the operated shortwave data spectrogram and the shortwave data spectrogram generated in the analysis module.
2. The short wave data display control device of claim 1, wherein the acquisition module acquires the short wave data in real time through the FPGA board card.
3. The short-wave data display control device of claim 1, further comprising a reading module for reading the real-time collected short-wave data;
the analysis module is used for analyzing and extracting the read short wave data to form displayable primary frequency spectrum data.
4. The short wave data display control device of claim 3, wherein the display module comprises a display of a primary spectrogram, a display of a primary spectrogram and a secondary spectrogram, a display of a primary spectrogram and a waterfall graph, and a display of a primary selected region spectrogram and a historical spectrogram.
5. The short wave data display control device according to claim 4, wherein the interactive control module includes setting the amplitude of the displayed short wave data spectrograms, amplifying the displayed primary spectrograms, setting the color of the display area in the display module, interactively switching the display modes of the displayed short wave data spectrograms, and picking up the displayed short wave data spectrograms.
6. The short-wave data display control device of claim 5, wherein the display modes in the interactive switching operation of the display modes of the plurality of short-wave data frequency spectrum diagrams comprise dot diagrams, line diagrams and envelope diagrams.
7. The short-wave data display control device of claim 3, wherein the primary spectrum data which can be displayed in the storage and analysis module in the storage module is stored in a data storage thread manner.
8. A method for short-wave data display control is characterized by comprising the following steps:
s1, acquiring short wave data in real time;
s2, carrying out data decoding and format conversion on the acquired short wave data to generate a short wave data spectrogram;
s3, displaying a plurality of short wave data frequency spectrograms;
s4, operating the plurality of displayed short wave data frequency spectrograms;
and S5, storing the operated short wave data spectrogram and the short wave data spectrogram generated in the analysis module.
9. The short-wave data display control method of claim 8, wherein the step S2 is preceded by:
reading real-time acquired short wave data;
the step S2 is specifically to analyze and extract the read short wave data to form displayable primary spectrum data.
10. The short wave data display control method of claim 9, wherein the display manner in step S3 includes display of a primary spectrogram, display of a primary spectrogram and a secondary spectrogram, display of a primary spectrogram and a waterfall graph, and display of a primary selected region spectrogram and a historical spectrogram.
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| US20140358477A1 (en) * | 2012-02-03 | 2014-12-04 | Rohde & Schwarz Gmbh & Co. Kg | Measuring device and method for automatic adjustment of contrast in the screen display |
| CN102928638A (en) * | 2012-11-01 | 2013-02-13 | 南京国睿安泰信科技股份有限公司 | Frequency spectrograph waterfall plot display system and method |
| CN104202101A (en) * | 2014-09-09 | 2014-12-10 | 西安烽火电子科技有限责任公司 | Short wave/ultra-short wave instant dynamic spectrum sensing system and method |
| CN106325140A (en) * | 2015-06-26 | 2017-01-11 | 华东师范大学 | Multi-channel short wave/ultrashort wave signal processing system and processing method based on FPGA |
| CN105450319A (en) * | 2015-11-11 | 2016-03-30 | 国家无线电监测中心陕西监测站 | Treatment method for classifying, identifying and decoding short-wave-band digital signals in real time |
| CN106771589A (en) * | 2016-12-29 | 2017-05-31 | 中国电子科技集团公司第五十四研究所 | A kind of implementation method of the real-time Waterfall plot of spectrum analysis |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114792352A (en) * | 2022-06-22 | 2022-07-26 | 成都玖锦科技有限公司 | Frequency spectrum image processing method and system |
| CN114792352B (en) * | 2022-06-22 | 2022-09-20 | 成都玖锦科技有限公司 | Frequency spectrum image processing method and system |
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