CN106918730A - A kind of digital oscilloscope and its multi channel signals synchronous method - Google Patents
A kind of digital oscilloscope and its multi channel signals synchronous method Download PDFInfo
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- CN106918730A CN106918730A CN201710071408.1A CN201710071408A CN106918730A CN 106918730 A CN106918730 A CN 106918730A CN 201710071408 A CN201710071408 A CN 201710071408A CN 106918730 A CN106918730 A CN 106918730A
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- G01R13/02—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form
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Abstract
A kind of multi channel signals synchronous method of digital oscilloscope is the embodiment of the invention provides, the method includes：The delay distortion of data in each receiving channel is determined first, delay distortion according to data in described each receiving channel is by the Lag synchronization of each receiving channel other receiving channels in addition to main channel to the main channel, to realize the clock alignment of interchannel, afterwards, delay compensation is carried out to data in each receiving channel.Based on this scheme, before delay compensation is carried out to data, it is that other passages have been synchronized on a main channel, therefore, depth requirements in the delay compensation of data to FIFO are substantially reduced, also allow for again being limited to the delay compensation of data the depth of FIFO, also avoid the path delay different problem of data.The embodiment of the present invention additionally provides a kind of digital oscilloscope.
Description
Technical field
The present invention relates to digital oscilloscope technical field, and in particular to a kind of digital oscilloscope and its multi channel signals synchronization
Method.
Background technology
Digital oscilloscope is visually to show that signal changes over time the instrument of waveform, be collection data acquisition, A/D conversion,
A series of technologies such as software programming are in the high performance signal characteristic test instrument of one.
With the development of electron trade technology, the sample rate more and more higher of analog-digital converter (ADC), adopts in digital oscilloscope
The speed that sampled point is transmitted with Traditional parallel interface has reached a bottleneck, the substitute is speed serial faster
Interface.Analog-digital converter (ADC) by the data conversion sampled into multichannel high-speed serial signals, by transmission media, finally
The high-speed serial signals of multiple passages are converted into sampled data again in receiving terminal (digit chip).Due to each high speed serialization
The difference of passage cabling, it is therefore desirable to synchronized to the data of multiple passages in receiving terminal, just can guarantee that and accurately recovers
Data.
IP adjusts the delay of each serial-port using FIFO in prior art, to reach between each passage
The purpose of synchronous alignment, but, every time during upper electricity, the depth of FIFO may be inconsistent, and this can cause the path delay of data not
Equally.
The content of the invention
In order to solve problems of the prior art, the embodiment of the present invention expects to provide a kind of digital oscilloscope and its many
Channel signal synchronous method.
A kind of multi channel signals synchronous method of digital oscilloscope is the embodiment of the invention provides, including：The numeral is shown
Ripple device includes：Control module and delay compensation module；Wherein,
The control module, carried out in delay compensation module for the data in each receiving channel delay compensation it
Before, determining the delay distortion of data in each receiving channel, the delay distortion according to data in described each receiving channel will be each
The Lag synchronization of individual receiving channel other receiving channels in addition to main channel on the main channel, to realize the clock pair of interchannel
Together；
The delay compensation module, for carrying out delay compensation to the data for receiving.
In such scheme, the control module, including：Determining unit, computing unit and setting unit；Wherein,
The determining unit, it is in multiple receiving channels to be determined into be main receiving channel, other receptions are logical
Road is defined as from receiving channel；
The computing unit, the delay distortion for calculating each data from receiving channel with main receiving channel；
The setting unit, for the read/write address of main channel to be set into a fixed value；Be additionally operable to according to each from
Receiving channel is compensated to each with the delay distortion of data in main receiving channel from the read/write address of receiving channel.
In such scheme, the fixed value is more than each read/write address deviation from passage Yu main channel.
In such scheme, the digital oscilloscope also includes channel reception module and byte-aligned module；Wherein,
The channel reception module, for the high speed data conversion that will receive into being input into byte-aligned after low speed data
Module；
The byte-aligned module, for carrying out byte-aligned to the data for receiving after be input into delay compensation module.
In such scheme, the byte-aligned module, including：Detection unit and adjustment unit；Wherein,
The detection unit, the frame header position for detecting data in each receiving channel；
The adjustment unit, is adjusted for the frame header position to data in each receiving channel, receives each logical
The frame head alignment of data in road.
In such scheme, the digital oscilloscope also includes：Data combination module；
The delay compensation module, is additionally operable to the data is activation after delay compensation to data combination module；
The data combination module, for being combined to the data for receiving after recover sampled data and export.
In such scheme, the number of the control module, delay compensation module, channel reception module and byte-aligned module
It is identical with receiving channel number；Wherein,
One receiving channel uniquely one control module of correspondence, a channel reception module, a byte-aligned module and
One delay compensation module.
The embodiment of the present invention additionally provides a kind of multi channel signals synchronous method of digital oscilloscope, and methods described includes：
The delay distortion of data in each receiving channel is determined, according to the delay distortion of data in described each receiving channel
By on the Lag synchronization of each receiving channel other receiving channels in addition to main channel to the main channel, with realize interchannel when
Clock aligns；
Delay compensation is carried out to data in each receiving channel.
In such scheme, each receiving channel is removed master by the delay distortion of data in each receiving channel described in the basis
The Lag synchronization of outer other receiving channels of passage on the main channel, including：
One in multiple receiving channels is determined to be main receiving channel, other receiving channels is defined as logical from receiving
Road；
Calculate the delay distortion of each data from receiving channel with main receiving channel；
The read/write address of main channel is set to a fixed value；
Delay distortion according to each data from receiving channel with main receiving channel is to each from the read-write of receiving channel
Address compensates.
In such scheme, the fixed value is more than each read/write address deviation from passage Yu main channel.
Compared with prior art, the embodiment of the present invention at least possesses advantages below：
The multi channel signals synchronous method of the digital oscilloscope for providing according to embodiments of the present invention, it is first determined each reception
The delay distortion of data in passage, the delay distortion according to data in described each receiving channel is by each receiving channel except main logical
The Lag synchronization of other receiving channels, to realize the clock alignment of interchannel, afterwards, connects on the main channel to each outside road
Data carry out delay compensation in receiving passage.Based on this scheme, before delay compensation is carried out to data, be by other passages all
It has been synchronized on a main channel (being also reference channel), therefore, to big to the depth requirements of FIFO in the delay compensation of data
It is big to reduce, also allow for again being limited to the delay compensation of data the depth of FIFO, the path for also avoiding data is prolonged
Slow different problem.
Brief description of the drawings
Fig. 1 is digital oscilloscope of the present invention basic block diagram in one embodiment；
Fig. 2 is control module in digital oscilloscope of the present invention basic block diagram in one embodiment；
Fig. 3 is basic block diagram of the digital oscilloscope of the present invention in second implementation method；
Fig. 4 is byte-aligned module in digital oscilloscope of the present invention basic block diagram in one embodiment；
Fig. 5 is basic block diagram of the digital oscilloscope of the present invention in the third implementation method；
Fig. 6 is basic block diagram of the digital oscilloscope of the present invention in the 4th kind of implementation method；
Fig. 7 is the multi channel signals synchronous method handling process in one embodiment of digital oscilloscope of the present invention
Figure；
Fig. 8 is the multi channel signals synchronous method handling process in another embodiment of digital oscilloscope of the present invention
Figure.
Specific embodiment
The present invention is described in further detail below by specific embodiment combination accompanying drawing.
Embodiment one
Reference picture 1, shows a kind of structured flowchart of digital oscilloscope of the invention, the digital oscilloscope, including：Control mould
Block 11 and delay compensation module 12；Wherein,
The control module 11, delay compensation is carried out for the data in each receiving channel in delay compensation module
Before, the delay distortion of data in each receiving channel is determined, the delay distortion according to data in described each receiving channel will
The Lag synchronization of each receiving channel other receiving channels in addition to main channel on the main channel, to realize the clock of interchannel
Alignment；
The delay compensation module 12, for carrying out delay compensation to the data for receiving.
In actual realization, the delay compensation module can be fifo module.
Specifically, as shown in Fig. 2 the control module 11, including：Determining unit 1101, computing unit 1102 and setting
Unit 1103；Wherein,
The determining unit 1101, in multiple receiving channels to be determined into be main receiving channel, other is connect
Passage is received to be defined as from receiving channel；
The computing unit 1102, the delay distortion for calculating each data from receiving channel with main receiving channel；
The setting unit 1103, for the read/write address of main channel to be set into a fixed value；It is additionally operable to according to each
The delay distortion of the individual data from receiving channel with main receiving channel is compensated to each from the read/write address of receiving channel.
In such scheme, the read/write address of the main channel, i.e. fixed value are more than each read-write from passage Yu main channel
Address deviation.
In another optional embodiment of the invention, reference picture 3, the digital oscilloscope also includes channel reception mould
Block 13 and byte-aligned module 14；Wherein,
The channel reception module 13, for the high speed data conversion that will receive into being input into byte pair after low speed data
Neat module 14；
The byte-aligned module 14, for carrying out byte-aligned to the data for receiving after be input into delay compensation module
12。
Specifically, as shown in figure 4, the byte-aligned module 14, including：Detection unit 1401 and adjustment unit 1402；
Wherein,
The detection unit 1401, the frame header position for detecting data in each receiving channel；
The adjustment unit 1402, is adjusted for the frame header position to data in each receiving channel, connects each
Receive the frame head alignment of data in passage.
In another alternative embodiment of the invention, reference picture 5, the oscillograph also includes：Data combination module 15；
The delay compensation module 12, is additionally operable to the data is activation after delay compensation to data combination module 15；
The data combination module 15, for being combined to the data for receiving after recover sampled data and export.
In another alternative embodiment of the invention, reference picture 6, delay compensation module in the digital oscilloscope,
The number of channel reception module and byte-aligned module is identical with receiving channel number；Wherein, a receiving channel is uniquely corresponded to
One channel reception module, a byte-aligned module and a delay compensation module, that is to say, that channel reception module,
One byte-aligned module and a delay compensation module are processed the data in a receiving channel jointly.So, often
Data in individual passage are by a channel reception module, a byte-aligned module and the delay compensation module fixed.On
Multiple delay compensation modules uniquely one control module of correspondence is stated, delay compensation module is controlled by the control module.It is many
Individual delay compensation module output data is input into same data combination module and carries out data combination.
In specific implementation process, above-mentioned guest request sending module 11, delay compensation module 12, channel reception module 13
Can be by central processing unit (CPU, the Central Processing in digital oscilloscope with byte-aligned module 14
Unit), microprocessor (MPU, Micro Processing Unit), digital signal processor (DSP, Digital Signal
) or programmable logic array (FPGA, Field-Programmable Gate Array) is realized Processor.
Embodiment two
Reference picture 7, the embodiment of the present invention two provides a kind of multi channel signals synchronous method of digital oscilloscope, its feature
It is that methods described includes：
Step 701, the delay distortion for determining data in each receiving channel, according to data in described each receiving channel
Delay distortion by the Lag synchronization of each receiving channel other receiving channels in addition to main channel to the main channel, to realize leading to
Clock alignment between road；
Specifically, as shown in fig. 7, the delay distortion of data is logical by each reception in each receiving channel described in the basis
The Lag synchronization of road other receiving channels in addition to main channel is on the main channel, including following process step：
S801, determine to be main receiving channel by one in multiple receiving channels, other receiving channels are defined as from connecing
Receive passage；
S802, the delay distortion for calculating each data from receiving channel with main receiving channel；
S803, the read/write address of main channel is set to a fixed value；
S804, according to the delay distortion of each data from receiving channel with main receiving channel to each from receiving channel
Read/write address is compensated.
In actual realization, the fixed value is more than each read/write address deviation from passage Yu main channel.
Step 702, delay compensation is carried out to data in each receiving channel.
Specifically, it is described delay compensation is carried out to data in each receiving channel before, methods described also includes：
By data in each receiving channel by high speed data conversion be low speed data after carry out byte-aligned.
The above method also includes：
Sampled data is recovered after being combined to the data after delay compensation and is exported.Its specific implementation with it is existing
Technology is identical.
To sum up, the multi channel signals synchronous method of the digital oscilloscope for providing according to embodiments of the present invention, it is first determined each
The delay distortion of data in individual receiving channel, delay distortion according to data in described each receiving channel is by each receiving channel
The Lag synchronization of other receiving channels is afterwards, right to realize the clock alignment of interchannel on the main channel in addition to main channel
Data carry out delay compensation in each receiving channel.It is by other before delay compensation is carried out to data based on this scheme
Passage has been synchronized on a main channel (being also reference channel), therefore, in the delay compensation of data to the depth of FIFO
It is required that substantially reducing, also allow for again being limited to the delay compensation of data the depth of FIFO, also avoid data
Path delay different problem.
Each embodiment in this specification is described by the way of progressive, what each embodiment was stressed be with
The difference of other embodiment, between each embodiment identical similar part mutually referring to.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can be provided as method, device or calculate
Machine program product.Therefore, the embodiment of the present invention can using complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.And, the embodiment of the present invention can using wherein include computer at one or more can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention is with reference to method according to embodiments of the present invention, terminal device (system) and computer program
The flow chart and/or block diagram of product is described.It should be understood that flow chart and/or block diagram can be realized by computer program instructions
In each flow and/or flow and/or square frame in square frame and flow chart and/or block diagram combination.These can be provided
Computer program instructions set to all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is producing a machine so that held by the processor of computer or other programmable data processing terminal equipments
Capable instruction is produced for realizing in one flow of flow chart or multiple one square frame of flow and/or block diagram or multiple square frames
The device of the function of specifying.
These computer program instructions may be alternatively stored in can guide computer or other programmable data processing terminal equipments
In the computer-readable memory for working in a specific way so that instruction of the storage in the computer-readable memory produces bag
The manufacture of command device is included, the command device is realized in one flow of flow chart or multiple one side of flow and/or block diagram
The function of being specified in frame or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing terminal equipments so that
Series of operation steps is performed on computer or other programmable terminal equipments to produce computer implemented treatment, so that
The instruction performed on computer or other programmable terminal equipments is provided for realizing in one flow of flow chart or multiple flows
And/or specified in one square frame of block diagram or multiple square frame function the step of.
Although having been described for the preferred embodiment of the embodiment of the present invention, those skilled in the art once know base
This creative concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to
Including preferred embodiment and fall into having altered and changing for range of embodiment of the invention.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.And, term " including ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or terminal device including a series of key elements are not only wrapped
Those key elements, but also other key elements including being not expressly set out are included, or also includes being this process, method, article
Or the intrinsic key element of terminal device.In the absence of more restrictions, by wanting that sentence "including a ..." is limited
Element, it is not excluded that also there is other identical element in the process including the key element, method, article or terminal device.
Above to a kind of digital oscilloscope provided by the present invention and its multi channel signals synchronous method, detailed Jie has been carried out
Continue, specific case used herein is set forth to principle of the invention and implementation method, the explanation of above example is only
It is to be used to help understand the method for the present invention and its core concept；Simultaneously for those of ordinary skill in the art, according to this hair
Bright thought, be will change in specific embodiments and applications, and in sum, this specification content should not be managed
It is limitation of the present invention to solve.
Claims (10)
1. a kind of digital oscilloscope, it is characterised in that the digital oscilloscope includes：Control module and delay compensation module；Its
In,
The control module, before carrying out delay compensation in delay compensation module for the data in each receiving channel,
Determine the delay distortion of data in each receiving channel, the delay of other receiving channels is same in addition to main channel by each receiving channel
Walk on the main channel, to realize the clock alignment of interchannel；
The delay compensation module, for carrying out delay compensation to the data for receiving.
2. digital oscilloscope according to claim 1, it is characterised in that the control module, including：Determining unit, meter
Calculate unit and setting unit；Wherein,
The determining unit, it is in multiple receiving channels to be determined into be main receiving channel, other receiving channels are true
It is set to from receiving channel；
The computing unit, the delay distortion for calculating each data from receiving channel with main receiving channel；
The setting unit, for the read/write address of main channel to be set into a fixed value；It is additionally operable to according to each from reception
Passage is compensated to each with the delay distortion of data in main receiving channel from the read/write address of receiving channel.
3. digital oscilloscope according to claim 2, it is characterised in that the fixed value is logical with main from passage more than each
The read/write address deviation in road.
4. digital oscilloscope according to claim 1 and 2, it is characterised in that the digital oscilloscope also connects including passage
Receive module and byte-aligned module；Wherein,
The channel reception module, for the high speed data conversion that will receive into being input into byte-aligned mould after low speed data
Block；
The byte-aligned module, for carrying out byte-aligned to the data for receiving after be input into delay compensation module.
5. digital oscilloscope according to claim 4, it is characterised in that the byte-aligned module, including：Detection unit
And adjustment unit；Wherein,
The detection unit, the frame header position for detecting data in each receiving channel；
The adjustment unit, is adjusted for the frame header position to data in each receiving channel, in making each receiving channel
The frame head alignment of data.
6. according to the digital oscilloscope described in claim 1 to 5 any of which, it is characterised in that also include：Data combination die
Block；
The delay compensation module, is additionally operable to the data is activation after delay compensation to data combination module；
The data combination module, for being combined to the data for receiving after recover sampled data and export.
7. according to the digital oscilloscope described in claim 1 to 5 any of which, it is characterised in that the control module, delay
The number of compensating module, channel reception module and byte-aligned module is identical with receiving channel number；Wherein,
One unique correspondence of receiving channel, one control module, a channel reception module, a byte-aligned module and one
Delay compensation module.
8. the multi channel signals synchronous method of a kind of digital oscilloscope, it is characterised in that methods described includes：
Determine the delay distortion of data in each receiving channel, the delay distortion according to data in described each receiving channel will be each
The Lag synchronization of individual receiving channel other receiving channels in addition to main channel on the main channel, to realize the clock pair of interchannel
Together；
Delay compensation is carried out to data in each receiving channel.
9. method according to claim 7, it is characterised in that the delay of data in each receiving channel described in the basis
Deviation by the Lag synchronization of each receiving channel other receiving channels in addition to main channel to the main channel, including：
One in multiple receiving channels is determined to be main receiving channel, other receiving channels are defined as from receiving channel；
Calculate the delay distortion of each data from receiving channel with main receiving channel；
The read/write address of main channel is set to a fixed value；
Delay distortion according to each data from receiving channel with main receiving channel is to each from the read/write address of receiving channel
Compensate.
10. method according to claim 8, it is characterised in that the fixed value is more than each from passage and main channel
Read/write address deviation.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108449088A (en) * | 2018-03-26 | 2018-08-24 | 北京润科通用技术有限公司 | Multi-channel high-speed sampling synchronization method and device |
| WO2020010875A1 (en) * | 2018-07-12 | 2020-01-16 | 中兴通讯股份有限公司 | Link capacity adjustment method and device |
| CN113252958A (en) * | 2021-07-15 | 2021-08-13 | 深圳市鼎阳科技股份有限公司 | Digital oscilloscope and automatic calibration method for delay difference between channels thereof |
| CN114696896A (en) * | 2020-12-30 | 2022-07-01 | 华为技术有限公司 | Time delay measuring method and device |
| WO2024114006A1 (en) * | 2022-11-30 | 2024-06-06 | 三维通信股份有限公司 | Multi-channel time delay alignment method and apparatus, communication device, and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2870939A1 (en) * | 2004-05-27 | 2005-12-02 | Chauvin Arnoux | MULTIVOIC DIGITAL OSCILLOSCOPES |
| CN101039158A (en) * | 2006-03-13 | 2007-09-19 | 中兴通讯股份有限公司 | Apparatus for canceling frame dislocation |
| CN101547054A (en) * | 2009-05-05 | 2009-09-30 | 东南大学 | Data receiving device of parallel optical inter-connected system based on programmable device and method thereof |
| CN102435809A (en) * | 2011-10-12 | 2012-05-02 | 秦轲 | Multi-channel digital oscilloscope and signal synchronization method thereof |
| US20120191418A1 (en) * | 2011-01-12 | 2012-07-26 | Zeroplus Technology Co., Ltd | Structure and method of data synchronization for muti measuring apparatus |
-
2017
- 2017-02-09 CN CN201710071408.1A patent/CN106918730A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2870939A1 (en) * | 2004-05-27 | 2005-12-02 | Chauvin Arnoux | MULTIVOIC DIGITAL OSCILLOSCOPES |
| CN101039158A (en) * | 2006-03-13 | 2007-09-19 | 中兴通讯股份有限公司 | Apparatus for canceling frame dislocation |
| CN101547054A (en) * | 2009-05-05 | 2009-09-30 | 东南大学 | Data receiving device of parallel optical inter-connected system based on programmable device and method thereof |
| US20120191418A1 (en) * | 2011-01-12 | 2012-07-26 | Zeroplus Technology Co., Ltd | Structure and method of data synchronization for muti measuring apparatus |
| CN102435809A (en) * | 2011-10-12 | 2012-05-02 | 秦轲 | Multi-channel digital oscilloscope and signal synchronization method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108449088A (en) * | 2018-03-26 | 2018-08-24 | 北京润科通用技术有限公司 | Multi-channel high-speed sampling synchronization method and device |
| CN108449088B (en) * | 2018-03-26 | 2022-03-01 | 北京润科通用技术有限公司 | Multichannel high-speed sampling synchronization method and device |
| WO2020010875A1 (en) * | 2018-07-12 | 2020-01-16 | 中兴通讯股份有限公司 | Link capacity adjustment method and device |
| CN110719182A (en) * | 2018-07-12 | 2020-01-21 | 中兴通讯股份有限公司 | Method and device for adjusting link capacity |
| US11546221B2 (en) | 2018-07-12 | 2023-01-03 | Zte Corporation | Link capacity adjustment method and device |
| CN114696896A (en) * | 2020-12-30 | 2022-07-01 | 华为技术有限公司 | Time delay measuring method and device |
| CN113252958A (en) * | 2021-07-15 | 2021-08-13 | 深圳市鼎阳科技股份有限公司 | Digital oscilloscope and automatic calibration method for delay difference between channels thereof |
| WO2024114006A1 (en) * | 2022-11-30 | 2024-06-06 | 三维通信股份有限公司 | Multi-channel time delay alignment method and apparatus, communication device, and storage medium |
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Application publication date: 20170704 |