WO2021169558A1 - 数字示波器及示波图生成系统 - Google Patents

数字示波器及示波图生成系统 Download PDF

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Publication number
WO2021169558A1
WO2021169558A1 PCT/CN2020/140498 CN2020140498W WO2021169558A1 WO 2021169558 A1 WO2021169558 A1 WO 2021169558A1 CN 2020140498 W CN2020140498 W CN 2020140498W WO 2021169558 A1 WO2021169558 A1 WO 2021169558A1
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Prior art keywords
signal
oscillogram
unit
oscilloscope
image signal
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PCT/CN2020/140498
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English (en)
French (fr)
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吴聪睿
耿立华
马希通
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京东方科技集团股份有限公司
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Priority to US17/418,374 priority Critical patent/US11874302B2/en
Publication of WO2021169558A1 publication Critical patent/WO2021169558A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/02—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form
    • G01R13/0209—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form in numerical form
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/02—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form
    • G01R13/0218—Circuits therefor
    • G01R13/0236—Circuits therefor for presentation of more than one variable
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/02—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form
    • G01R13/0218—Circuits therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/02—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form
    • G01R13/0218—Circuits therefor
    • G01R13/0245—Circuits therefor for inserting reference markers

Definitions

  • the present disclosure relates to the technical field of oscilloscopes, in particular to a digital oscilloscope, and also to an oscillogram generation system including the digital oscilloscope.
  • the oscilloscope is an electronic measuring instrument with a very wide range of uses. It can transform the invisible electrical signal into a visible image, which is convenient for people to study the changing process of various electrical phenomena.
  • oscilloscopes When performing analysis and processing, it is usually necessary to monitor the color, brightness and other information of the video signal, and use an oscilloscope to observe the waveform curves of various signal amplitudes over time.
  • Traditional oscilloscopes are digital image oscilloscopes with display screens.
  • oscilloscopes are complex in structure, large in size, not portable, and unable to adapt to outdoor use scenarios, and traditional oscilloscopes have a single display content, which is not convenient for users to conduct intuitive observations.
  • the purpose of the present disclosure is to overcome the above shortcomings of the prior art and provide a digital oscilloscope and oscillogram generation system.
  • a digital oscilloscope including:
  • Video input interface used to receive digital video signals
  • a data processing system connected to the video input interface, receiving the digital video signal, and processing the digital video signal to generate an oscillogram signal, the oscillogram signal including an oscillogram image signal, and a menu At least one of an image signal and a frame image signal of the digital video signal;
  • Video output interface connected to the data processing system, receiving and outputting the signal from the data output unit
  • the clock system is connected to the data processing system and provides a clock signal for the work of the data processing system.
  • the data processing system includes a data input unit, a processor, a memory, and a data output unit, and the data input unit is connected to the video input interface for receiving the digital video.
  • the processor is connected to the data input unit for processing image information in the digital video signal to generate the oscillogram signal
  • the data output unit is connected to the processor and the The video output interface is used to output the oscillogram signal to the video output interface
  • the memory is used to store the data signal inside the processor; wherein the processor includes:
  • a signal input processing unit connected to the data input unit, for decoding the digital video signal to generate a frame image of each frame image
  • a frame image analysis unit connected to the signal input processing unit, for extracting characteristic data from the frame image
  • An oscillogram generating unit connected to the frame image analysis unit, for receiving the characteristic data and generating the corresponding oscillogram image signal;
  • a menu generating unit connected to the frame image analysis unit, for receiving the characteristic data and generating the corresponding menu image signal
  • the video output processing unit is respectively connected to the oscillogram generating unit, the menu generating unit, and the memory, and is used to combine at least one of the menu image signal, the frame image signal of the digital video signal, and the State that the oscillogram image signal is fused into a fusion image signal;
  • the signal output processing unit is connected to the video output processing unit, and is configured to encode the fused image to generate the oscillogram signal, and output the oscillogram signal to the data output unit.
  • the oscillogram generating unit further includes sequentially connected:
  • a data structure conversion unit further connected to the frame image analysis unit, for converting the characteristic data into a readable data structure
  • An oscilloscope data graphical construction unit used to draw the data structure into an initial oscillogram
  • the oscilloscope background image superimposing unit is used to superimpose the initial oscilloscope and the background image to generate a composite oscilloscope
  • the oscillogram display optimization unit is configured to optimize the display effect of the composite oscillogram to generate the oscillogram image and output it to the signal output processing unit.
  • the method for generating the fused image by the video output processing unit includes a layer superposition method and a splicing synthesis method.
  • the oscilloscope further includes a number of first selection devices for selecting the type of the fused image signal
  • the processor further includes a function selection unit which is connected to the first selection unit respectively.
  • the selection device and the video output processing unit, and the function selection unit is configured to generate a first instruction signal according to the instruction of the first selection device and send it to the video output processing unit, so that the video output processing unit is The first instruction signal selects at least one of the menu image signal and the frame image signal of the digital video signal to be fused with the oscillogram image signal.
  • the fusion image signal includes three types, the first is the fusion image signal of the menu image signal and the oscillogram image signal; the second is the frame image signal and the oscillogram image The fusion image signal of the signal, the third type is the fusion image signal of the menu image signal, the frame image signal, and the oscillogram image signal.
  • the oscilloscope further includes a number of second selection devices for selecting the type of the oscillogram image signal, and the function selection unit is also connected to each of the second selection devices respectively.
  • the frame image analysis unit, the oscillogram generation unit and the menu generation unit are connected, and the function selection unit is further configured to generate a second instruction signal according to the instruction of the second selection device and send it to the frame image analysis unit , A menu generation unit and an oscillogram generation unit, so that the frame image analysis unit extracts corresponding characteristic data according to the second instruction signal, and the oscillogram generation unit generates corresponding characteristic data according to the second instruction signal
  • the oscillogram image signal enables the menu generating unit to generate a corresponding menu image signal according to the second instruction signal.
  • the first selection device and the second selection device are both buttons.
  • the oscilloscope further includes several prompting devices for prompting the working state, and the prompting devices are light emitting devices or sound emitting devices.
  • the video input interface includes a variety of different digital video input interfaces
  • the video output interface includes a variety of different digital video output interfaces.
  • an oscillogram generation system including:
  • Video output device connected to the video input interface of the oscilloscope
  • the display terminal is connected to the video output interface of the oscilloscope for receiving and displaying the oscillogram signal generated by the oscilloscope.
  • FIG. 1 is a schematic diagram of the overall structure of an oscilloscope in this embodiment
  • FIG. 2 is a schematic diagram of the internal functional unit structure of the oscilloscope according to the embodiment.
  • FIG. 3 is a schematic diagram of functional units of a processor in this embodiment
  • FIG. 4 is a schematic diagram of an image fusion method of this embodiment
  • FIG. 5 is a schematic diagram of another image fusion manner in this embodiment.
  • FIG. 6 is a schematic diagram of functional units of the oscillogram generating unit of this embodiment.
  • FIG. 7 is a schematic diagram of the overall structure of the oscillogram generating system of this embodiment.
  • the embodiment of the present disclosure provides a digital oscilloscope, which is used to analyze and process frame images in a digital video signal to generate an oscillogram.
  • the digital oscilloscope according to the embodiment of the present disclosure includes a housing 1, a video input interface 2, a data processing system 3, a video output interface 4, and a clock system 5.
  • the video input interface 2 is provided on the housing 1 for receiving digital video signals
  • the data processing system 3 is provided in the housing 1, connected to the video input interface 2, and receives the digital video signal received from the video input interface 2, and The digital video signal is processed to generate an oscillogram signal.
  • the oscillogram signal includes the oscillogram image signal, and also includes the menu image signal and/or the frame image signal of the digital video signal;
  • the video output interface 4 is provided on the housing 1 , Connect to the data processing system 3, receive the oscillogram signal generated from the data processing system 3 and output to other external devices (such as display devices);
  • the clock system 5 is set in the housing 1, connected to the data processing system 3, for data processing
  • the operation of system 3 provides a clock signal.
  • a power supply system 6 can also be provided in the housing 1, and the power supply system 6 is respectively connected to the data processing system 3 and the clock system 5 to provide power for the data processing system 3 and the clock system 5.
  • the oscilloscope receives the digital video signal input from the external video input device through the video input interface 2, and uses the data processing system 3 to analyze and process the digital video signal to analyze and process the frame image signal in the digital video signal to generate its oscilloscope
  • the video signal is then output to the external display terminal through the video output interface 4 to achieve the purpose of monitoring video color, brightness and other information.
  • the external oscilloscope of the present disclosure does not require a display screen. Instead, it is connected to the display terminal when the oscillogram needs to be displayed, so that the generated oscilloscope signal can be displayed on the external display terminal. Displayed as an oscillogram. Because the oscilloscope and the display terminal are separated, the oscilloscope structure is simplified, the volume is reduced, the portability is improved, and it is easy to move and carry. It only needs to be connected to the display terminal when in use, which is convenient for outdoor use.
  • the oscilloscope signal generated by the oscilloscope also contains the menu image signal and the video source frame image signal.
  • the oscillogram image can be explained or compared, and it is convenient for the user when displayed on the display terminal. Interpreting the oscillogram image further improves the intuitiveness of the oscilloscope display.
  • the external digital oscilloscope of this embodiment has a housing 1.
  • the video input interface 2 and the video output interface 4 are respectively provided on opposite sides of the housing 1, so that the oscilloscope 100 can be easily connected to other devices. Phase connection.
  • the video input interface 2 adopts a digital video input interface, which may include a variety of different digital video input interfaces, such as 12G-SDI, 3G-SDI, HDMI, DVI, DP, etc., to meet the requirements of different transmission equipment.
  • the video output interface 4 may also include a variety of different digital video output interfaces, such as the several digital video output interfaces described above, to meet the requirements of different transmission equipment.
  • the video signal can be input through any of the above-mentioned interfaces.
  • the data processing system 3 After the data processing system 3 generates the oscillogram signal, it can be output by any digital video output interface 4. That is to say, the interface types used for input and output can be the same. It can be different to meet different transmission needs.
  • the clock system 5 may be a clock circuit system composed of electronic components such as a clock crystal oscillator and a clock chip, and provides a clock signal for the normal operation of the data processing system 3.
  • the power supply system 6 can be in the form of an adapter or USB power supply, and the system has built-in electronic components such as a power management chip to provide matching power for various chips or components in the entire data processing system 3.
  • a corresponding power interface 10 can be provided on the oscilloscope housing 1 to provide power input for the device.
  • the power interface 10 may adopt a USB power supply or a DC power supply interface.
  • you can also set and switch on the oscilloscope casing 1 to control the power switch.
  • the data processing system 3 includes a data input unit 31, a processor 32, a memory 33 and a data output unit 34.
  • the data input unit 31 is connected to the video input interface 2 for receiving digital video signals from the video input interface 2.
  • the processor 32 is connected to the data input unit 31 for processing image information in the digital video signal to generate an oscillogram signal.
  • the data output unit 34 is connected to the processor 32 and the video output interface 4 for outputting the oscillogram signal to the video output interface 4.
  • the memory 33 is connected to the processor 32 and is used to store various data signals inside the processor 32.
  • the processor 32 includes a signal input processing unit 321, a frame image analysis unit 322, an oscillogram generation unit 323, a menu generation unit 325, a video output processing unit 326, and a signal output processing unit. Unit 324.
  • the signal input processing unit 321 is connected to the data input unit 31, receives digital video signals, and uses the matching interface protocol analysis algorithm according to the currently selected input digital video interface (such as 12G-SDI, 3G-SDI, HDMI, DVI, DP, etc.) Decode the digital video signal and restore each frame of the digital video.
  • the frame image analysis unit 322 is connected to the signal input processing unit 321, receives and analyzes each image from the signal input processing unit 321, and extracts characteristic data therefrom.
  • the oscillogram generation unit 323 is connected to the frame image analysis unit 322, receives characteristic data and generates a corresponding oscillogram image signal.
  • the menu generating unit 325 is connected to the frame image analyzing unit 322, receives the characteristic data, and generates a corresponding menu image signal.
  • the video output processing unit 326 is respectively connected to the oscillogram generating unit 323, the menu generating unit 325, and the memory 33, and is used to fuse at least one of the menu image, the frame image signal of the digital video signal, and the oscilloscope image signal into a The fused image signal displayed in an image.
  • the signal output processing unit 324 is connected to the video output processing unit 326, receives the fused image signal, selects the matching interface protocol algorithm according to the output interface type to encode the fused image signal, generates an oscillogram signal that conforms to the protocol standard, and then outputs it to the data output Unit 34.
  • the types of oscillogram image signals include, but are not limited to, image brightness histogram, image RGB histogram, image YCbCr histogram, image brightness waveform, image RGB waveform, image YCbCr waveform, and image chroma vector diagram , This disclosure does not specifically limit this.
  • various data signals generated can be buffered by the memory 33, and the next-level processing unit reads the corresponding data signals from the memory 33 for processing.
  • the signal input processing module sequentially sends each frame of the parsed image to the memory 33 for buffering according to its time sequence.
  • the frame image analysis unit 322 first reads the corresponding frame image signal from the memory 33 and then analyzes it.
  • the oscillogram generating unit 323 generates the oscillogram signal, it can be buffered in the memory 33, and the signal output processing unit 324 reads the relevant signal from the memory 33 and then encodes it.
  • the memory 33 includes volatile memory (such as DDR, DRAM, SDRAM, etc.) and non-volatile memory (such as FLASH flash memory, PROM, etc.).
  • volatile memory such as DDR, DRAM, SDRAM, etc.
  • non-volatile memory such as FLASH flash memory, PROM, etc.
  • the volatile memory is used to provide a cache function during system operation.
  • Non-volatile memory is used to provide the storage function of configuration parameters and other data after the system is powered off.
  • the processor of this embodiment can display at least one of the oscillogram image and the menu image or the video source frame image on the display terminal, thereby enabling the user to intuitively observe the oscillogram and the corresponding image on a display terminal.
  • the video source frame images and menu images provide users with an interactive interface, and it is also convenient for users to understand the oscillogram information more intuitively. Compared with only seeing the oscillogram, the fused image improves the user's intuitiveness.
  • the menu information generated by the menu generating unit 325 may include information such as function selection, function parameter setting, current status display, input and output signal configuration, etc., which can be specifically set according to requirements.
  • the video output processing unit 326 fuses the oscillogram image signal and the corresponding menu image signal into a fused image signal, and the image finally displayed on the display terminal is composed of the oscillogram and the corresponding menu image signal.
  • the image of the menu image In the second specific embodiment, the video output processing unit 326 fuses the oscillogram image signal and the corresponding frame image signal into a fused image signal, and the image finally displayed on the display terminal is the image including the oscillogram and the frame image. image.
  • the video output processing unit 326 fuses the oscilloscope image signal, the corresponding frame image signal, and the menu image signal into a fused image signal, and the image finally displayed on the display terminal includes the oscillogram, Image of frame image and menu image.
  • the user can intuitively know the currently displayed oscillogram and the corresponding reference image.
  • the fusion method of the oscilloscope image signal, the menu image signal and the frame image signal can adopt the layer superposition method or the splicing synthesis method.
  • the layer superposition method can be that the menu layer and the oscillogram layer are all overlaid on the frame image as shown in Figure 4
  • the stitching synthesis method can be the side-by-side arrangement of the frame image layer, the menu layer and the oscilloscope layer as shown in Figure 5.
  • it can also be other superimposed and stitched methods, or adopt Other ways of integration.
  • the oscillogram generating unit 323 sequentially includes a data structure conversion unit 301, an oscilloscope data graphical construction unit 302, an oscilloscope background image overlay unit 303, and an oscillogram display optimization unit 304. .
  • the feature data from the frame image analysis unit 322 is buffered in the internal memory, it first enters the data structure conversion unit 301 to convert the feature data into a data structure that is easy to read.
  • the data structure conversion unit 301 prestores algorithms for converting various characteristic data and algorithms for various conversion requirements. Specifically, corresponding algorithms can be selected for structural conversion according to requirements.
  • the oscilloscope data graphical construction unit 302 the integrated data structure is drawn into the required oscillogram.
  • the oscilloscope background image superimposing unit 303 the generated oscilloscope data stream and the corresponding background image are superimposed to generate an oscilloscope with indicator marks such as a scale and a scale.
  • the generated oscillogram is subjected to display optimization operations such as scale and scale conversion, multi-channel oscillogram splicing, etc., to generate a complete oscillogram signal and output to the signal output processing unit 324.
  • the oscillogram generating unit 323 may also be formed by other modules, which will not be listed here.
  • the oscilloscope 100 further includes a first selection device 7, the first selection device 7 is configured to generate a first instruction, and the processor 32 further includes The function selection unit 320, the data processing system 3 further includes a number of first I/O interfaces 35, the input terminals of each first I/O interface 35 are connected to each first selection device 7 in a one-to-one correspondence, and each first I/O interface The output terminal of 35 is connected to the function selection unit 320, and the function selection unit 320 is configured to generate a first instruction signal according to the first instruction.
  • the function selection unit 320 is also connected to the video output processing unit 326, and sends the generated first instruction signal to the video output processing unit 326, so that the video output processing unit 326 selects at least one of the menu image signal, the frame image signal, and the oscilloscope.
  • Figure image signal fusion Specifically, the first selection device 7 may be a button provided on the housing 1. Each button generates an instruction signal corresponding to a type of fused image signal. When the user presses one of the buttons, the video output processing unit 326 The image fusion processing will be performed according to the corresponding command signal.
  • the first selection device 7 may also be other structures such as a knob, which will not be listed here.
  • the first I/O interface 35 may adopt a general programmable I/O interface (GPIO interface) to simplify the device structure.
  • the oscilloscope is also provided with a second selection device 8, the second selection device 8 is used to generate a second instruction, the data processing system 3 also includes a number of second I/O interface 36, each second The input terminal of the I/O interface 36 is connected to each second selection device 8 in a one-to-one correspondence, and the output terminal of each second I/O interface 36 is connected to the function selection unit 320, and the function selection unit 320 can also generate according to the second instruction The second command signal.
  • the function selection unit 320 can be connected to the frame image analysis unit 322, the oscillogram generation unit 323, and the menu generation unit 325, respectively, to send the second instruction signal to these three units, so that the frame image analysis unit 322 is in accordance with the second instruction signal.
  • Select one of the multiple oscillogram image signal types to extract the corresponding feature data the oscillogram generating unit 323 generates the corresponding oscillogram image according to the second instruction signal
  • the menu generating unit 325 generates the corresponding menu image according to the second instruction signal .
  • the second selection device 8 can also be a button provided on the housing 1, and the second selection device 8 can also be a knob or other structures, which will not be listed here.
  • the second I/O interface 36 may also adopt a general programmable I/O interface.
  • the connection relationship between the function selection unit 320 and other units is indicated by a dotted line.
  • the function of the function selection unit 320 can be understood as being used to generate a corresponding instruction signal according to a user's instruction, and other functional units are used to generate a corresponding result according to the instruction signal, so that the oscilloscope finally outputs the oscillogram signal required by the user.
  • a number of prompting devices 9 are also provided on the oscilloscope, and the processor 32 also includes the ability to generate a working state prompt signal (such as whether the current video format is Support, whether the current system is working normally, current power input, etc.) prompt signal generation unit 327, the data processing system 3 is also provided with a number of third I/O interfaces 37, and the input terminals of each third I/O interface 37 and prompts The signal generating unit 327 is connected, and the output end of each third I/O interface 37 is connected to each prompting device 9 in a one-to-one correspondence.
  • a working state prompt signal such as whether the current video format is Support, whether the current system is working normally, current power input, etc.
  • the third I/O interface 37 is used to transmit the working state prompt signal issued by the prompt signal generating unit 327 to the prompt device 9.
  • the working state prompt signal may be a switch signal for controlling the corresponding prompt device 9 to turn on or off.
  • the prompting device 9 may be a light-emitting device provided on the housing 1, such as an indicator light.
  • a working state prompt signal controls a switch of the indicator light.
  • the prompting device 9 may also be a sounding device, such as a speaker, etc., which will not be listed here.
  • the third I/O interface 37 may also adopt a general programmable I/O interface. Through this prompt device, the user can know whether the current working state of the oscilloscope is normal.
  • the processor 32 in the above embodiment can specifically select a processor that requires software support, such as CPU and GPU, or a processor that integrates software and hardware such as FPGA and ASIC.
  • a processor that requires software support such as CPU and GPU
  • a processor that integrates software and hardware such as FPGA and ASIC.
  • FPGA and ASIC a processor that integrates software and hardware
  • it can be a heterogeneous FPGA processor such as Zynq and MPSoC. Class processors perform more efficiently.
  • the specific type of the processor 32 is not particularly limited in the present disclosure, and can be selected according to actual needs.
  • the embodiment of the present disclosure also provides an oscillogram generation system.
  • FIG. 7 it includes the above-mentioned digital oscilloscope 100, a video output device 200, and a display terminal 300.
  • the video output device 200 is connected to the video input interface 2 of the oscilloscope 100; the display terminal 300 is connected
  • the video output interface 4 of the oscilloscope 100 is used to receive and display the oscillogram signal generated by the oscilloscope 100.
  • the video output device 200 may be any device capable of outputting digital video, such as a signal generator, a video player, and a camera.
  • the display terminal 300 may be, for example, any product or component with a display function, such as a television, a notebook computer, a tablet computer, a mobile phone, a navigation, an e-book, a digital photo frame, and an advertising light box.
  • the present disclosure does not specifically limit the specific types of the two.
  • each component of the oscillogram generating system of the present disclosure is independent of each other, which is convenient for installation according to the needs of the demonstration occasion. It is also easy to maintain, saves maintenance costs, and has rich functions and high selectivity.

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Abstract

一种数字示波器和示波图生成系统。数字示波器包括视频输入接口（2）、数据处理系统（3）、视频输出接口（4）和时钟系统（5），视频输入接口（2）用于接收数字视频信号；数据处理系统（3）接收数字视频信号并进行处理以生成示波图信号，示波图信号包含示波图图像，还包含菜单图像和数字视频信号的帧图像中的一种；视频输出接口（4）连接数据处理系统（3），接收示波图信号并输出至外部终端。提出的示波器可显示多种图像信息，直观度高，且结构简化，便携性提高，便于室外等场所使用。

Description

数字示波器及示波图生成系统
交叉引用
本公开要求于2020年02月27日递交的第202010125630.7号中国专利申请的优先权，在此全文引用上述中国专利申请公开的内容以作为本公开的一部分。
技术领域
本公开涉及示波器技术领域，具体而言，涉及一种数字示波器，还涉及包含该数字示波器的示波图生成系统。
背景技术
示波器是一种用途十分广泛的电子测量仪器，它能把肉眼看不见的电信号变换成看得见的图像，便于人们研究各种电现象的变化过程。
在对进行分析处理时候，通常会需要监测视频信号的色彩、亮度等信息，利用示波器来观察各种不同信号幅度随时间变化的波形曲线。传统示波器是带有显示屏的数字图像示波器，然而此种示波器结构复杂，体积较大，不便携带，无法适应室外的使用场景，且传统示波器显示内容单一，不便于用户进行直观的进行观察。
需要说明的是，在上述背景技术部分发明的信息仅用于加强对本公开的背景的理解，因此可以包括不构成对本领域普通技术人员已知的现有技术的信息。
发明内容
本公开的目的在于克服上述现有技术的不足，提供一种数字示波器和示波图生成系统。
根据本公开的一个方面，提供一种数字示波器，包括：
视频输入接口，用于接收数字视频信号；
数据处理系统，连接所述视频输入接口，接收所述数字视频信号，并对所述数字视频信号进行处理以生成示波图信号，所述示波图信号包 含示波图图像信号，还包含菜单图像信号和所述数字视频信号的帧图像信号中的至少一种；
视频输出接口，连接所述数据处理系统，接收来自所述数据输出单元的信号并输出；
时钟系统，连接所述数据处理系统，为所述数据处理系统的工作提供时钟信号。
在本公开的一种示例性实施方式中，所述数据处理系统包括数据输入单元、处理器、存储器和数据输出单元，所述数据输入单元连接所述视频输入接口，用于接收所述数字视频信号；所述处理器连接所述数据输入单元，用于对所述数字视频信号中的图像信息进行处理以生成所述示波图信号；所述数据输出单元分别连接所述处理器和所述视频输出接口，用于将所述示波图信号输出至所述视频输出接口；所述存储器用于存储所述处理器内部的数据信号；其中，所述处理器包括：
信号输入处理单元，连接所述数据输入单元，用于对所述数字视频信号进行解码，以生成每一帧图像的帧图像；
帧图像分析单元，连接所述信号输入处理单元，用于从所述帧图像中提取特征数据；
示波图生成单元，连接所述帧图像分析单元，用于接收所述特征数据并生成对应的所述示波图图像信号；
菜单生成单元，连接所述帧图像分析单元，用于接收所述特征数据并生成对应的所述菜单图像信号；
视频输出处理单元，分别连接所述示波图生成单元、所述菜单生成单元和所述存储器，用于将所述菜单图像信号、所述数字视频信号的帧图像信号中的至少一种和所述示波图图像信号融合为融合图像信号；
信号输出处理单元，连接所述视频输出处理单元，用于对所述融合图像进行编码以生成所述示波图信号，并将所述示波图信号输出至所述数据输出单元。
在本公开的一种示例性实施方式中，所述示波图生成单元还包括依次连接的：
数据结构转换单元，还连接所述帧图像分析单元，用于将所述特征 数据转换成可读取的数据结构；
示波数据图形化构造单元，用于将所述数据结构绘制成初始示波图；
示波背景图叠加单元，用于将所述初始示波图和背景图叠加，以生成复合示波图；
示波图显示优化单元，用于对所述复合示波图的显示效果进行优化处理，以生成所述示波图图像并输出至所述信号输出处理单元。
在本公开的一种示例性实施方式中，所述视频输出处理单元生成所述融合图像的方法包括图层叠加法和拼接合成法。
在本公开的一种示例性实施方式中，所述示波器还包括用于选择融合图像信号类型的若干第一选择装置，所述处理器还包括功能选择单元，所述功能选择单元分别连接第一选择装置和所述视频输出处理单元，所述功能选择单元用于根据所述第一选择装置的指令生成第一指令信号并发送至所述视频输出处理单元，以使所述视频输出处理单元根据所述第一指令信号在所述菜单图像信号、所述数字视频信号的帧图像信号中选择至少一种和所述示波图图像信号融合。
其中，所述融合图像信号类型包括三种，第一种为所述菜单图像信号和所述示波图图像信号的融合图像信号；第二种为所述帧图像信号和所述示波图图像信号的融合图像信号，第三种为所述菜单图像信号、所述帧图像信号和所述示波图图像信号的融合图像信号。
在本公开的一种示例性实施方式中，所述示波器还包括用于选择所述示波图图像信号类型的若干第二选择装置，所述功能选择单元还分别与各所述第二选择装置、所述帧图像分析单元、示波图生成单元和菜单生成单元连接，所述功能选择单元还用于根据所述第二选择装置的指令生成第二指令信号并发送至所述帧图像分析单元、菜单生成单元和示波图生成单元，以使所述帧图像分析单元根据所述第二指令信号提取对应的特征数据，使所述示波图生成单元根据所述第二指令信号生成对应的示波图图像信号，使所述菜单生成单元根据所述第二指令信号生成对应的菜单图像信号。
在本公开的一种示例性实施方式中，所述第一选择装置和第二选择装置均为按键。
在本公开的一种示例性实施方式中，所述示波器还包括若干用于提示工作状态的提示装置，所述提示装置为发光装置或发声装置。
在本公开的一种示例性实施方式中，所述视频输入接口包括多种不同的数字视频输入接口，所述视频输出接口包括多种不同的数字视频输出接口。
根据本公开的另一个目的，还提供一种示波图生成系统，包括：
以上所述的数字示波器；
视频输出设备，连接所述示波器的视频输入接口；
显示终端，连接所述示波器的视频输出接口，用于接收所述示波器生成的示波图信号并显示。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本实施方式示波器的整体结构示意图；
图2为本实施方式示波器的内部功能单元结构示意图；
图3为本实施方式处理器的功能单元示意图；
图4为本实施方式的一种图像融合方式示意图；
图5为本实施方式的另一种图像融合方式示意图；
图6为本实施方式示波图生成单元的功能单元示意图；
图7为本实施方式示波图生成系统的整体结构示意图。
图中：1、壳体；2、视频输入接口；3、数据处理系统；4、视频输出接口；5、时钟系统；6、电源系统；7、第一选择装置；8、第二选择装置；9、提示装置；10、电源接口；
31、数据输入单元；32、处理器；33、存储器；34、数据输出单元； 35、第一I/O接口；36、第二I/O接口；37、第三I/O接口；
320、功能选择单元；321、信号输入处理单元；322、帧图像分析单元；323、示波图生成单元；324、信号输出处理单元；325、菜单生成单元；326、视频输出处理单元；327、提示信号生成单元；301、数据结构转换单元；302、示波数据图形化构造单元；303、示波图显示优化单元；304、示波背景图叠加单元；
100、示波器；200、视频输出设备；300、显示终端。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本公开将全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。图中相同的附图标记表示相同或类似的结构，因而将省略它们的详细描述。此外，附图仅为本公开的示意性图解，并非一定是按比例绘制。
虽然本说明书中使用相对性的用语，例如“上”“下”来描述图标的一个组件对于另一组件的相对关系，但是这些术语用于本说明书中仅出于方便，例如根据附图中所述的示例的方向。能理解的是，如果将图标的装置翻转使其上下颠倒，则所叙述在“上”的组件将会成为在“下”的组件。当某结构在其它结构“上”时，有可能是指某结构一体形成于其它结构上，或指某结构“直接”设置在其它结构上，或指某结构通过另一结构“间接”设置在其它结构上。
用语“一个”、“一”、“该”、“所述”和“至少一个”用以表示存在一个或多个要素/组成部分/等；用语“包括”和“具有”用以表示开放式的包括在内的意思并且是指除了列出的要素/组成部分/等之外还可存在另外的要素/组成部分/等；用语“第一”、“第二”和“第三”等仅作为标记使用，不是对其对象的数量限制。
本公开实施方式中提供了一种数字示波器，用于对数字视频信号中的帧图像进行分析处理，生成示波图。参考图1和图2，本公开实施方式的数字示波器包括壳体1、视频输入接口2、数据处理系统3、视频输 出接口4和时钟系统5。其中，视频输入接口2设于壳体1上，用于接收数字视频信号；数据处理系统3设于壳体1内，连接视频输入接口2，接收来自视频输入接口2接收的数字视频信号，并对数字视频信号进行处理以生成示波图信号，示波图信号包含示波图图像信号，还包含菜单图像信号和/或数字视频信号的帧图像信号；视频输出接口4设于壳体1上，连接数据处理系统3，接收来自数据处理系统3生成的示波图信号并输出至其他外部设备(例如显示设备)；时钟系统5设于壳体1内，连接数据处理系统3，为数据处理系统3的工作提供时钟信号。除此之外，壳体1内还可以设置电源系统6，电源系统6分别连接数据处理系统3和时钟系统5，为数据处理系统3和时钟系统5提供电源。
该示波器通过视频输入接口2接收来自外部视频输入设备输入的数字视频信号，利用数据处理系统3对数字视频信号进行分析处理，以对数字视频信号中的帧图像信号进行分析处理，生成其示波图信号，再通过视频输出接口4将示波图信号输出至外部的显示终端，达到监测视频色彩、亮度等信息的目的。与传统带显示屏的示波器相比，本公开的外接式示波器无需设置显示屏，而是在需要显示示波图时将其与显示终端连接，以将生成的示波图信号在外部显示终端上显示为示波图。由于示波器和显示终端分离，因此示波器结构得到简化，体积减小，便携性提高，易于移动携带，只需在使用时再与显示终端连接即可，便于室外等场所使用。
另一方面，该示波器生成的示波图信号除了示波图图像信号还包含菜单图像信号和视频源帧图像信号，可以对示波图图像进行说明或对比，在显示终端上显示时，便于用户解读示波图图像，进一步提高了示波显示的直观性。
下面对本公开实施方式的外接式数字示波器进行详细说明：
如图1和图2所示，本实施方式的外接式数字示波器具有一壳体1，视频输入接口2和视频输出接口4分别设于壳体1相对的两侧，以便于示波器100与其他装置相连接。视频输入接口2采用数字视频输入接口，其可以包括多种不同的数字视频输入接口，例如12G-SDI、3G-SDI、HDMI、DVI、DP等，以满足不同传输设备的需求。同样，视频输出接口4也可 以包括多种不同的数字视频输出接口，例如上述所述的几种数字视频输出接口，以满足不同传输设备的需求。视频信号可以通过上述任一种接口输入，数据处理系统3生成示波图信号后，可采用任意一种数字视频输出接口4输出，也就是说，输入和输出所采用的接口种类可以相同，也可以不同，以满足不同的传输需求。
时钟系统5可以为由时钟晶振、时钟芯片等电子元件构成的时钟电路系统，为数据处理系统3的正常工作提供时钟信号。
电源系统6可以采用适配器或USB供电等形式，系统内置电源管理芯片等电子元件，为整个数据处理系统3中各类芯片或元件提供匹配的电源。相应的，在示波器壳体1上可以设置相应的电源接口10，为设备提供电源输入。电源接口10可采用USB供电或DC供电接口等。另外，还可以在示波器壳体1上设置与开关，以对电源开关进行控制。
如图2所示，本实施方式中，数据处理系统3包括数据输入单元31、处理器32、存储器33和数据输出单元34。数据输入单元31连接视频输入接口2，用于接收来自视频输入接口2的数字视频信号。处理器32连接数据输入单元31，用于对数字视频信号中的图像信息进行处理以生成示波图信号。数据输出单元34连接处理器32和视频输出接口4，用于将示波图信号输出至视频输出接口4。存储器33连接处理器32，用于存储处理器32内部的各种数据信号。
在一种实施方式中，如图3所示，处理器32包括信号输入处理单元321、帧图像分析单元322、示波图生成单元323、菜单生成单元325、视频输出处理单元326和信号输出处理单元324。信号输入处理单元321连接数据输入单元31，接收数字视频信号，根据当前选择的输入数字视频接口(例如12G-SDI、3G-SDI、HDMI、DVI、DP等)，使用相匹配的接口协议解析算法对数字视频信号进行解码，还原出数字视频中的每一帧图像。帧图像分析单元322连接信号输入处理单元321，接收来自信号输入处理单元321的每张图像并对其进行分析，从其中提取特征数据。示波图生成单元323连接帧图像分析单元322，接收特征数据并生成对应的示波图图像信号。菜单生成单元325连接帧图像分析单元322，接收特征数据并生成对应的菜单图像信号。视频输出处理单元326分别连 接示波图生成单元323、菜单生成单元325和存储器33，用于将菜单图像、数字视频信号的帧图像信号中的至少一种和示波图图像信号融合为能在一张图像中显示的融合图像信号。信号输出处理单元324连接视频输出处理单元326，接收融合图像信号，按照输出接口类型选择相匹配的接口协议算法对融合图像信号进行编码，生成符合协议标准的示波图信号，然后输出至数据输出单元34。本公开中，示波图图像信号的类型包括但不限于图像亮度直方图、图像RGB直方图、图像YCbCr直方图，图像亮度波形图、图像RGB波形图、图像YCbCr波形图、图像色度矢量图，本公开不对此进行特殊限定。
在处理器32生成示波图信号的过程中，可以通过存储器33缓存生成的各种数据信号，下一级处理单元从存储器33中读取相应的数据信号再进行处理。例如，信号输入处理模块将解析出来的每一帧图像按照其时序顺序依次发送至存储器33中进行缓存。帧图像分析单元322则先从存储器33中读取相应的帧图像信号，再对其进行分析。示波图生成单元323生成示波图信号后可以缓存至存储器33，信号输出处理单元324从存储器33中读取相关信号再对其进行编码。本实施方式中，存储器33包括易失性存储器(例如DDR、DRAM、SDRAM等)和非易失性存储器(例如FLASH闪存、PROM等)，易失性存储器用于提供系统运行时的缓存功能，非易失性存储器用于提供系统掉电后的配置参数等数据的存储功能。
本实施例的处理器可以将示波图图像和菜单图像或视频源帧图像中的至少一种在显示终端上显示，由此使得用户在一个显示终端上可直观的观察到示波图和对应的视频源帧图像以及菜单图像，为用户提供交互界面，也便于用户更直观的了解示波图信息，相比于仅能看到示波图，融合后的图像提高了用户的直观性。菜单生成单元325生成的菜单信息可以包括功能的选择、功能参数设置、当前状态显示、输入输出信号配置等信息，具体可根据需求设置。
由此，该示波器可以生成的融合图像信号类型包括三种。具体而言，在第一种具体实施例中，视频输出处理单元326将示波图图像信号和对应的菜单图像信号融合为融合图像信号，最终显示于显示终端的图像即 为包括示波图和菜单图像的图像。在第二种具体实施例中，视频输出处理单元326分将示波图图像信号和对应的帧图像信号融合为融合图像信号，最终显示于显示终端的图像即为包括示波图和帧图像的图像。在第三种具体实施例中，视频输出处理单元326将示波图图像信号和对应的帧图像信号、菜单图像信号融合为融合图像信号，最终显示于显示终端的图像即为包括示波图、帧图像和菜单图像的图像。以上实施例中，用户均可可直观的获知当前显示的示波图和对应的参考图像。
需要注意的是，在从存储器33中读取示波图图像信号、菜单图像信号与帧图像信号进行融合时，应当保证三者相互对应。
示波图图像信号、菜单图像信号与帧图像信号融合的方法可采用图层叠加法或拼接合成法，图层叠加法可以是如图4所示菜单图层和示波图图层均覆盖在帧图像图层上的方式，拼接合成法可以是如图5所示的帧图像图层、菜单图层和示波图图层并列排布的方式，当然也可以是其他叠加、拼接的方式，或采用其他的融合方式。
在一种具体实施例中，参考图6，示波图生成单元323依次包括数据结构转换单元301，示波数据图形化构造单元302、示波背景图叠加单元303和示波图显示优化单元304。来自帧图像分析单元322的特征数据经过内部存储器缓存后，首先进入数据结构转换单元301，将特征数据转换成易于读取的数据结构。数据结构转换单元301中预先存储有针对各种特征数据进行转化的算法以及针对各种转化需求的算法，具体可根据需求进行选择相应的算法进行结构转化。其次，示波数据图形化构造单元302中，将整合好的数据结构绘制成所需的示波图。然后，示波背景图叠加单元303中，将生成的示波图数据流和相应的背景图叠加，生成具有刻度、比例尺等指示标记的示波图。最后在示波图显示优化单元304中，将生成的示波图进行比例和尺度变换、多通道示波图拼接等显示优化操作，生成完整的示波图信号输出至信号输出处理单元324。在其他实施例中，示波图生成单元323还可以通过其他模块形成，此处不再一一列举。
在一种实施方式，为了实现对融合图像信号类型进行选择，参考图1-图3，示波器100还包含第一选择装置7，第一选择装置7用于生成第 一指令，处理器32还包括功能选择单元320，数据处理系统3还包括若干第一I/O接口35，各第一I/O接口35的输入端与各第一选择装置7一一对应连接，各第一I/O接口35的输出端与功能选择单元320连接，功能选择单元320用于根据第一指令生成第一指令信号。功能选择单元320还连接视频输出处理单元326，将生成的第一指令信号发送至视频输出处理单元326，以使视频输出处理单元326在菜单图像信号、帧图像信号中选择至少一种和示波图图像信号融合。具体的，第一选择装置7可以为设于壳体1上的按键，每一按键产生一种指令信号，对应一种融合图像信号类型，当用户按下其中一个按键，视频输出处理单元326就会根据相应的指令信号进行图像融合处理。当然，在其他实施例中，第一选择装置7也可以为旋钮等其他结构，此处不再一一列举。第一I/O接口35可采用通用可编程I/O接口(GPIO接口)，以简化设备结构。
在一种实施方式，如前所述，由于示波图图像信号类型包括亮度直方图、RGB直方图、亮度波形图等多种类型，为了实现对示波图图像信号类型的选择，提高示波器功能可选择性，参考图1-图3，示波器还设置第二选择装置8，第二选择装置8用于生成第二指令，数据处理系统3还包括若干第二I/O接口36，各第二I/O接口36的输入端与各第二选择装置8一一对应连接，各第二I/O接口36的输出端均与功能选择单元320连接，功能选择单元320还可以根据第二指令生成第二指令信号。功能选择单元320可分别连接帧图像分析单元322、示波图生成单元323和菜单生成单元325，以将第二指令信号发送至这三个单元，使帧图像分析单元322根据第二指令信号在多种示波图图像信号类型中选择一个提取相应的特征数据，示波图生成单元323根据第二指令信号生成对应的示波图图像，菜单生成单元325根据第二指令信号生成对应的菜单图像。与第一选择装置7类似，第二选择装置8也可以为设于壳体1上的按键，第二选择装置8也可以为旋钮等其他结构，此处不再一一列举。第二I/O接口36也可以采用通用可编程I/O接口。
需要说明的是，在图3中，用虚线表示了功能选择单元320与其他单元的连接关系。功能选择单元320的功能可以理解为用于根据用户的指令生成相应的指令信号，其他功能单元用于根据指令信号生成相应的 结果，以使示波器最终输出用户需要的示波图信号。
在一种实施方式，为了便于用户实时获知示波器当前工作状态，参考图1-图3，示波器上还设置了若干提示装置9，处理器32还包括能够生成工作状态提示信号(如当前视频格式是否支持、当前系统是否正常工作、当前电源输入情况等)的提示信号生成单元327，数据处理系统3还设置了若干第三I/O接口37，各第三I/O接口37的输入端与提示信号生成单元327连接，各第三I/O接口37的输出端与各提示装置9一一对应连接。第三I/O接口37用于向提示装置9传递提示信号生成单元327发出的工作状态提示信号，工作状态提示信号可以为开关信号，用于控制对应的提示装置9的开启或关闭。具体的，提示装置9可以为设于壳体1上的发光装置，例如指示灯，一个工作状态提示信号控制一个指示灯的开关。提示装置9也可以为发声装置，例如扬声器等，此处不再一一列举。第三I/O接口37也可以采用通用可编程I/O接口。通过该提示装置，用户可以获知当前示波器当前工作状态是否正常。
上述实施方式中的处理器32具体可选用CPU、GPU等需要软件支持的处理器，也可采用FPGA、ASIC等软硬件一体的处理器，例如可以为Zynq、MPSoC等异构FPGA处理器，这类处理器执行效率更高。处理器32的具体种类本公开不进行特殊限制，可根据实际需求选择。
本公开实施方式还提供一种示波图生成系统，参考图7，包括上述数字示波器100、视频输出设备200和显示终端300，视频输出设备200连接示波器100的视频输入接口2；显示终端300连接示波器100的视频输出接口4，用于接收示波器100生成的示波图信号并显示。
视频输出设备200可以是信号发生器、视频播放器、摄像机等任何能够输出数字视频的设备。显示终端300可以是例如电视机、笔记本电脑、平板电脑、手机、导航、电子书、数码相框、广告灯箱等任何具有显示功能的产品或部件。本公开不对二者的具体类型进行特殊限定。
综上，本公开的示波图生成系统的各部件结构相互独立，便于根据演示场合需要进行安装。也便于维修，节约了维修成本，同时功能丰富，可选择性高。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想 到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由所附的权利要求指出。

Claims (10)

  1. 一种数字示波器，其中，包括：
    视频输入接口，用于接收数字视频信号；
    数据处理系统，连接所述视频输入接口，接收所述数字视频信号，并对所述数字视频信号进行处理以生成示波图信号，所述示波图信号包含示波图图像信号，还包含菜单图像信号和所述数字视频信号的帧图像信号中的至少一种；
    视频输出接口，连接所述数据处理系统，接收所述示波图信号并输出；
    时钟系统，连接所述数据处理系统，为所述数据处理系统的工作提供时钟信号。
  2. 根据权利要求1所述的数字示波器，其中，所述数据处理系统包括数据输入单元、处理器、存储器和数据输出单元，所述数据输入单元连接所述视频输入接口，用于接收所述数字视频信号；所述处理器连接所述数据输入单元，用于对所述数字视频信号中的图像信息进行处理以生成所述示波图信号；所述数据输出单元分别连接所述处理器和所述视频输出接口，用于将所述示波图信号输出至所述视频输出接口；所述存储器用于存储所述处理器内部的数据信号；其中，所述处理器包括：
    信号输入处理单元，连接所述数据输入单元，用于对所述数字视频信号进行解码，以生成每一帧图像的帧图像；
    帧图像分析单元，连接所述信号输入处理单元，用于从所述帧图像中提取特征数据；
    示波图生成单元，连接所述帧图像分析单元，用于接收所述特征数据并生成对应的所述示波图图像信号；
    菜单生成单元，连接所述帧图像分析单元，用于接收所述特征数据并生成对应的所述菜单图像信号；
    视频输出处理单元，分别连接所述示波图生成单元、所述菜单生成单元和所述存储器，用于将所述菜单图像信号、所述数字视频信号的帧图像信号中的至少一种和所述示波图图像信号融合为融合图像信号；
    信号输出处理单元，连接所述视频输出处理单元，用于对所述融合 图像信号进行编码以生成所述示波图信号，并将所述示波图信号输出至所述数据输出单元。
  3. 根据权利要求2所述的数字示波器，其中，所述示波图生成单元还包括依次连接的：
    数据结构转换单元，还连接所述帧图像分析单元，用于将所述特征数据转换成可读取的数据结构；
    示波数据图形化构造单元，用于将所述数据结构绘制成初始示波图；
    示波背景图叠加单元，用于将所述初始示波图和背景图叠加，以生成复合示波图；
    示波图显示优化单元，用于对所述复合示波图的显示效果进行优化处理，以生成所述示波图图像信号并输出至所述信号输出处理单元。
  4. 根据权利要求2所述的数字示波器，其中，所述视频输出处理单元生成所述融合图像信号的方法包括图层叠加法和拼接合成法。
  5. 根据权利要求2所述的数字示波器，其中，所述示波器还包括用于选择融合图像信号类型的若干第一选择装置，所述处理器还包括功能选择单元，所述功能选择单元分别连接第一选择装置和所述视频输出处理单元，所述功能选择单元用于根据所述第一选择装置的指令生成第一指令信号并发送至所述视频输出处理单元，以使所述视频输出处理单元根据所述第一指令信号在所述菜单图像信号、所述数字视频信号的帧图像信号中选择至少一种和所述示波图图像信号融合
    其中，所述融合图像信号类型包括三种，第一种为所述菜单图像信号和所述示波图图像信号的融合图像信号；第二种为所述帧图像信号和所述示波图图像信号的融合图像信号，第三种为所述菜单图像信号、所述帧图像信号和所述示波图图像信号的融合图像信号。
  6. 根据权利要求5所述的数字示波器，其中，所述示波器还包括用于选择所述示波图图像信号类型的若干第二选择装置，所述功能选择单元还分别与各所述第二选择装置、所述帧图像分析单元、示波图生成单元和菜单生成单元连接，所述功能选择单元还用于根据所述第二选择装置的指令生成第二指令信号并发送至所述帧图像分析单元、菜单生成单元和示波图生成单元，以使所述帧图像分析单元根据所述第二指令信号 提取对应的特征数据，使所述示波图生成单元根据所述第二指令信号生成对应的示波图图像信号，使所述菜单生成单元根据所述第二指令信号生成对应的菜单图像信号。
  7. 根据权利要求6所述的数字示波器，其中，所述第一选择装置和第二选择装置均为按键。
  8. 根据权利要求1所述的数字示波器，其中，所述示波器还包括若干用于提示工作状态的提示装置，所述提示装置为发光装置或发声装置。
  9. 根据权利要求1所述的数字示波器，其中，所述视频输入接口包括多种不同的数字视频输入接口，所述视频输出接口包括多种不同的数字视频输出接口。
  10. 一种示波图生成系统，其中，包括：
    如权利要求1-9中任一项所述的数字示波器；
    视频输出设备，连接所述示波器的视频输入接口；
    显示终端，连接所述示波器的视频输出接口，用于接收所述示波器生成的示波图信号并显示。
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