CN105425770A - Low-resolution real-time recording and high resolution recording synthesis method - Google Patents
Low-resolution real-time recording and high resolution recording synthesis method Download PDFInfo
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- CN105425770A CN105425770A CN201510759163.2A CN201510759163A CN105425770A CN 105425770 A CN105425770 A CN 105425770A CN 201510759163 A CN201510759163 A CN 201510759163A CN 105425770 A CN105425770 A CN 105425770A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
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Abstract
The present invention discloses a low-resolution real-time recording and high resolution recording synthesis method. The high-resolution data sampling recording which displays a key moment in a host machine software real-time/historical trend map is provided, and the fault positioning and optimized control are facilitated. The method is characterized by comprising the steps that: (1) after host machine software is started, the periodical time synchronization with a lower machine controller is carried out, (2) the host machine software carries out real-time sampling recording with a low resolution and stores recording data into a host machine, (3) a lower machine controller is triggered by a host machine software issuing command or is triggered when a lower machine controller self-defined trigger condition is satisfied, (4) the host machine software reads lower machine controller high-resolution recording data and stores the data in the host machine, and (5) the host machine software carries out synchronous synthesis display of the stored real-time recording and high-resolution recording data according to time stamp.
Description
Technical field
The present invention relates to a kind of intelligence record wave technology, be applied to the fields such as wind-power electricity generation, electrical network relay protection and Industry Control, be specifically related in wind turbine generator system controller, be specifically related to a kind of low resolution and record ripple and high resolving power record wave synthesis method in real time.
Background technology
Conventional record wave technology: be limited to communication bandwidth, upper computer software is recorded ripple in real time and is generally adopted low resolution to record wave technology; Or slave computer controller slave computer adopts high resolving power record wave technology.
Real-time record ripple, is used for trend analysis, host computer carries out record ripple with the solid slave computer controller data that periodically reads, is limited to the communication bandwidth between host computer and slave computer, be difficult to realize high resolving power analysis and excavate.
High resolving power record ripple generally realizes on slave computer controller, and the storage space of needs is comparatively large, higher to the hardware requirement of slave computer controller, is usually used in the critical data such as fault analysis, optimal control.
The slave computer controller how less at storage space, hardware configuration is lower realizes trend and fault analysis data record ripple, be a more scabrous problem always.
State Intellectual Property Office was on January 23rd, 2013, disclosing a publication number is CN202693731U, name is called the utility model patent of " medium voltage network failure wave-recording and intelligent comprehensive diagnostic process device ", have hardware platform ARM core built-in industrial control machine in its device main frame, it is connected with resultant fault monitoring modular, resultant fault diagnostic process module and record and involves wave form analysis module; The filter band having CT/PT in resultant fault monitoring modular and be connected with CT/PT and A/D change-over circuit; There are route selection module and harmonic elimination module in resultant fault diagnostic process module, have tripping operation module and digital output module in route selection module, have harmonic elimination plate in harmonic elimination module, wherein digital output module and harmonic elimination model calling; Device main frame based on IP in a wired fashion or wireless mode and background monitoring analytic function module carry out data transmission.
Summary of the invention
Owing to there is above problem in prior art, the invention provides a kind of record wave technology utilizing host computer storage space advantage to combine in conjunction with slave computer controller sample rate Dominant Facies, adopt host computer low resolution record ripple and slave computer high resolving power record ripple synchronized compound to show, solve the problems referred to above.
The technical solution used in the present invention comprises following characteristics:
A kind of low resolution records ripple and high resolving power record wave synthesis method in real time, it is characterized in that, comprising:
(1) after upper computer software starts, periodically with slave computer controller time synchronized;
(2) upper computer software is with low resolution real-time sampling record ripple, and low resolution recorder data is saved to host computer;
(3) issue instruction triggers by host computer or meet after the self-defined trigger condition of slave computer controller triggers, slave computer is with high resolving power sampling record ripple;
(4) host computer reads slave computer high resolving power recorder data, is stored to host computer;
(5) the high resolving power recorder data that the low resolution recorder data under preservation and slave computer preserve temporally stabs and carries out synchronized compound displaying by host computer.
Described upper computer software is that those skilled in the art know conventional software.
Preferably, (1) comprises further: time synchronized can be directly synchronous with timestamp, also can be synchronous with relative time.
Preferably, (2) comprise further: low resolution is sampled, and determine host computer sample frequency according to the communication speed between upper computer software and slave computer controller.The serial communication that hardware configuration is lower, CAN communication is the highest 1KHz generally, and ethernet communication can have higher sample frequency.
Preferably, (3) comprise further: the sampling rate of slave computer controller limits by storage space and control cycle, and sample frequency is higher, and sampling time length is shorter, depends on slave computer CPU frequency, can realize the sample frequency that 100KHz is even higher.
Preferably, (3) comprise further: be the record longer time, the sampling resolution of slave computer controller is variable.As triggered front sampling 10Hz, 50Hz after triggering, 10Hz after triggering 1s, the storage space of as much, can realize more wave-recording sampling point, facilitate post analysis.
Preferably, (5) comprise further: recorder data storage file name associates with slave computer high resolving power record ripple storage file name in real time, facilitates storage administration analysis.File can be stored as the text formattings such as txt/excel/xml, also can stored in database.
The invention has the beneficial effects as follows: adopt Time synchronization technique, the slave computer controller that storage space is less, configuration is lower is used to coordinate upper computer software, the synthesis achieving record ripple trend analysis and key point high resolving power analysis is in real time shown, be provided in upper computer software in real time/chart on show crucial moment high-resolution data sampling record ripple, facilitate problem localization of fault and optimal control.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is that upper computer software is through looped network and slave computer controller connection diagram;
Fig. 2 is real-time and high resolving power record ripple intelligence coincidence schematic diagram;
Fig. 3 is the Time Synchronization Mechanism schematic diagram that slave computer controller has real-time clock;
Fig. 4 is the Time Synchronization Mechanism schematic diagram that slave computer controller does not have real-time clock.
Embodiment
All features disclosed in this instructions, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this instructions, unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
embodiment 1:
A kind of low resolution records ripple and high resolving power record wave synthesis method in real time, it is characterized in that, comprising:
(1) after upper computer software starts, periodically with slave computer controller time synchronized;
(2) upper computer software is with low resolution real-time sampling record ripple, and low resolution recorder data is saved to host computer;
(3) issue instruction triggers by host computer or meet after the self-defined trigger condition of slave computer controller triggers, slave computer is with high resolving power sampling record ripple;
(4) host computer reads slave computer high resolving power recorder data, is stored to host computer;
(5) the high resolving power recorder data that the low resolution recorder data under preservation and slave computer preserve temporally stabs and carries out synchronized compound displaying by host computer.
embodiment 2:
A kind of low resolution records ripple and high resolving power record wave synthesis method in real time, it is characterized in that, comprising:
Preferably, (1) comprises further: time synchronized can be directly synchronous with timestamp, also can be synchronous with relative time.
Preferably, (2) comprise further: low resolution is sampled, and determine host computer sample frequency according to the communication speed between upper computer software and slave computer controller.The serial communication that hardware configuration is lower, CAN communication is the highest 1KHz generally, and ethernet communication can have higher sample frequency.
Preferably, (3) comprise further: the sampling rate of slave computer controller limits by storage space and control cycle, and sample frequency is higher, and sampling time length is shorter, depends on slave computer CPU frequency, can realize the sample frequency that 100KHz is even higher.
Preferably, (3) comprise further: be the record longer time, the sampling resolution of slave computer controller is variable.As triggered front sampling 10Hz, 50Hz after triggering, 10Hz after triggering 1s, the storage space of as much, can realize more wave-recording sampling point, facilitate post analysis.
Preferably, (5) comprise further: recorder data storage file name associates with slave computer high resolving power record ripple storage file name in real time, facilitates storage administration analysis.File can be stored as the text formattings such as txt/excel/xml, also can stored in database.
embodiment 3:
As accompanying drawing 2, the record ripple synthetic technology in the present invention comprises:
(1) upper computer software after starting periodically with slave computer controller time synchronized, if slave computer controller has real-time clock, adopt Absolute Time Synchronization mode, see Fig. 3; There is no real-time clock, adopt the relative time method of synchronization, see Fig. 4.
Fig. 4 relative time Synchronization Design, comparatively Absolute Time Synchronization wants complicated a lot.Slave computer controller and upper computer software, the timer that a design resolution is consistent, as 1ms.After upper computer software is opened, read the relative time variable of the timer of slave computer controller, then correspond to the absolute time of host computer.Relative time variable is recorded in recorder data, as timestamp after activating by slave computer controller failure.When host computer reads slave computer controller high resolving power recorder data, then this relative time stamp and absolute time are mapped.Require that timer time of day is longer, ensure not occur that repeatedly the cycle repeats to differentiate; Or in slave computer controller, designing a variable, metering record ripple triggering times, these 2 kinds of designs can ensure in several days to the some months time, and relative time variable can keep synchronous with absolute time.
(2) upper computer software is with 50Hz frequency real-time sampling record ripple, and recorder data is saved to host computer;
(3) slave computer controller issues instruction triggers by host computer or meets the self-defined trigger condition of slave computer controller and triggers, with 1KHz or more high resolving power sampling record ripple;
(4) upper computer software reads slave computer controller high resolving power recorder data, is stored to host computer;
(5) the real-time record ripple under preservation and high resolving power recorder data temporally stab and carry out synthesis displaying by host computer.
When system is normal, trend analysis can be carried out with real-time recorder data, break down or special circumstances time, slave computer controller trigger high resolving power record ripple, also the feature that the little sampling rate of slave computer controller storage space is high is made full use of, expediently lower one Conjoint Analysis.
The invention has the beneficial effects as follows: adopt Time synchronization technique, the slave computer controller that storage space is less, configuration is lower is used to coordinate upper computer software, the synthesis achieving record ripple trend analysis and key point high resolving power analysis is in real time shown, be provided in upper computer software in real time/chart on show crucial moment high-resolution data sampling record ripple, facilitate problem localization of fault and optimal control.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (5)
1. a low resolution records ripple and high resolving power record wave synthesis method is characterized in that in real time, comprising:
(1) after upper computer software starts, periodically with slave computer controller time synchronized;
(2) upper computer software is with low resolution real-time sampling record ripple, and low resolution recorder data is saved to host computer;
(3) issue instruction triggers by host computer or meet after the self-defined trigger condition of slave computer controller triggers, slave computer is with high resolving power sampling record ripple;
(4) host computer reads slave computer high resolving power recorder data, is stored to host computer;
(5) the high resolving power recorder data that the low resolution recorder data under preservation and slave computer preserve temporally stabs and carries out synchronized compound displaying by host computer.
2. a kind of low resolution according to claim 1 records ripple and high resolving power record wave synthesis method in real time, it is characterized in that, the time synchronized that described step (1) comprises is that absolute time stamp is synchronous or relative time stamp is synchronous.
3. a kind of low resolution according to claim 1 records ripple and high resolving power record wave synthesis method in real time, it is characterized in that, the low resolution sample frequency that described step (2) comprises is decided by the communication speed between upper computer software and slave computer controller, communication speed is determined by the serial ports connected, communication speed is faster, and sample frequency is higher.
4. a kind of low resolution according to claim 1 records ripple and high resolving power record wave synthesis method in real time, it is characterized in that, the sampling rate of the slave computer controller that described step (3) comprises limits by storage space and control cycle, and the shorter sample frequency of sampling time length is higher.
5. a kind of low resolution according to claim 1 records ripple and high resolving power record wave synthesis method in real time, it is characterized in that, described step (5) also comprises: the storage filename of host computer low resolution recorder data and the storage file name of slave computer high resolving power recorder data interrelated, the form of described store files is txt, excel or xml.
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| CN106199427A (en) * | 2016-07-06 | 2016-12-07 | 中国东方电气集团有限公司 | A kind of record wave system system of excitation in real time |
| CN113110389A (en) * | 2021-04-21 | 2021-07-13 | 东方电气自动控制工程有限公司 | Fault recording data processing method based on intelligent power plant monitoring system |
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