CN106647697A - Verification method for switching quantity input signals - Google Patents
Verification method for switching quantity input signals Download PDFInfo
- Publication number
- CN106647697A CN106647697A CN201611115799.4A CN201611115799A CN106647697A CN 106647697 A CN106647697 A CN 106647697A CN 201611115799 A CN201611115799 A CN 201611115799A CN 106647697 A CN106647697 A CN 106647697A
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- Prior art keywords
- signal
- switch amount
- acquisition elements
- amount signal
- verification module
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Classifications
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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
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0256—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults injecting test signals and analyzing monitored process response, e.g. injecting the test signal while interrupting the normal operation of the monitored system; superimposing the test signal onto a control signal during normal operation of the monitored system
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
Abstract
The invention discloses a verification method for switching quantity input signals. The method includes the following steps that: switching quantity input signals required to be verified are acquired through switching quantity input acquisition elements; and the switching quantity input acquisition elements output a plurality of paths of switching quantity signals and sends the switching quantity signals to a verification module; the verification module compares two received paths of switching quantity signals and judges whether the two paths of switching quantity signals are effective and whether the switching quantity input acquisition elements are normal; and the verification module compares three received paths of switching quantity signals and judges whether the three paths of switching quantity signals are effective and whether the switching quantity input acquisition elements are normal. According to the verification method for switching quantity input signals of the invention, different judgments are made according to the types of the switching quantity input acquisition elements, and therefore, whether the switching quantity signals are effective, and whether the switching quantity input acquisition elements are abnormal can be judged effectively, and the authenticity of the switching quantity input signals and the reliability of the processing of the switching quantity input signals can be improved. The verification method has a bright application prospect.
Description
Technical field
The present invention relates to technical field of relay protection, and in particular to a kind of method of calibration for On-off signal signal.
Background technology
At present, in relay protection system, the acquisition method of On-off signal signal is adopted by the input of single switch amount
Collection element realizes the isolation conversion of signal, then exports one-channel signal and uses for processing unit.But, above-mentioned method exists scarce
Weary verification means, are cannot correctly to export actual switch amount input signal shape if damaging occur in On-off signal acquisition elements
State, meanwhile, processing unit cannot also perceive the distress condition of the On-off signal acquisition elements and the verity of input signal,
Cause processing unit to do the judgement for making mistake, or even affect follow-up protection act triggering, security incident occur, be current urgent need
The problem of solution.
The content of the invention
The purpose of the present invention is the damage for overcoming existing processing unit also to perceive the On-off signal acquisition elements
The verity of state and input signal, causes processing unit to do the problem of the judgement for making mistake.The present invention's is defeated for switching value
Enter the method for calibration of signal, compared with prior art, whether effectively can effectively identify On-off signal signal and close
The working condition of amount input acquisition elements improves the verity of pass amount input signal and processes On-off signal with the presence or absence of abnormal
The reliability of signal, improves safe effect, has a good application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of method of calibration for On-off signal signal, it is characterised in that：Comprise the following steps,
Step（A）, it would be desirable to verified On-off signal signal carries out signals collecting by On-off signal acquisition elements；
Step（B）, according to On-off signal acquisition elements output mux amount signal, and correction verification module is sent to, if switch
When amount input acquisition elements are two independent optic coupling elements, double switch amount signal is exported to correction verification module, and execution step
（C）；If On-off signal acquisition elements are three independent optic coupling elements, three-way switch amount signal is exported to correction verification module, and
Execution step（D）
Step（C）, correction verification module according to receive double switch amount signal be compared, judge double switch amount signal whether have
Whether effect and the On-off signal acquisition elements are normal；
Step（D）, correction verification module according to receive three-way switch amount signal be compared, judge three-way switch amount signal whether have
Whether effect and the On-off signal acquisition elements are normal.
A kind of aforesaid method of calibration for On-off signal signal, it is characterised in that：
Step（C）, correction verification module according to receive double switch amount signal be compared, judge double switch amount signal whether have
Whether effect and the On-off signal acquisition elements are normal, and process is as follows,
（C1）The very first time threshold value of the different state duration of setting；
（C2）Correction verification module is compared according to the double switch amount signal for receiving, if there is difference in double switch amount signal, and
Different state durations exceed（C1）The very first time threshold value of setting, then correction verification module send abnormal alarm, double switch
Amount input signal is disarmed state, and the On-off signal acquisition elements exception exits verification；If double switch amount signal is identical,
Then double switch amount signal is effective status, and the On-off signal acquisition elements verification is normal.
A kind of aforesaid method of calibration for On-off signal signal, it is characterised in that：
Step（D）, correction verification module according to receive three-way switch amount signal be compared, judge three-way switch amount signal whether have
Whether effect and the On-off signal acquisition elements are normal, and process is as follows,
（D1）Second time threshold of the different state duration of setting；
（D2）Correction verification module according to receive three-way switch amount signal be compared, if exist all the way switches amount signal with it is another
The different and different state duration of outer double switch amount signal exceedes（D1）Second time threshold of setting, then verify
Module sends abnormal alarm, and the on-off model of identical two-way is effective status, and the way switch amount signal is disarmed state, the road
Independent optic coupling element exception in the corresponding On-off signal acquisition elements of on-off model；If the mutual not phase of three-way switch amount signal
Together, and the different persistent period exceedes（D1）Setting the second time threshold, then correction verification module send abnormal alarm, three-way switch
Amount signal is disarmed state, and the On-off signal acquisition elements exception exits verification；If three-way switch amount signal is identical,
Three-way switch amount signal is effective status, and the On-off signal acquisition elements verification is normal.
A kind of aforesaid method of calibration for On-off signal signal, it is characterised in that：The very first time threshold value
Scope is the 1-10 seconds.
A kind of aforesaid method of calibration for On-off signal signal, it is characterised in that：Second time threshold
Scope is the 1-10 seconds.
A kind of aforesaid method of calibration for On-off signal signal, it is characterised in that：Whether each way switch amount signal
It is identical, it is to be compared according to the measured value of each way switch amount signal, the measured value of on-off model is 1 during high level；Low level
When on-off model measured value be 0.
The invention has the beneficial effects as follows：The method of calibration for On-off signal signal of the present invention, with prior art phase
Than, by the type for distinguishing On-off signal acquisition elements, different judgements are made, can effectively identify On-off signal
Whether the working condition of input acquisition elements is measured with the presence or absence of exception in effective and pass to signal, and the true of input signal is measured in raising pass
Property and process On-off signal signal reliability, improve safe effect, have a good application prospect.
Description of the drawings
Fig. 1 is the flow chart of the method for calibration for On-off signal signal of the present invention.
Fig. 2 is the schematic diagram that the On-off signal acquisition elements of the present invention are two independent optic coupling elements.
Fig. 3 is the decision flow chart that the On-off signal acquisition elements of the present invention are three independent optic coupling elements.
Specific embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
The method of calibration for On-off signal signal of the present invention, it is compared with prior art, defeated by distinguishing switching value
Enter the type of acquisition elements, make different judgements, whether effectively can effectively identify On-off signal signal and close
The working condition of amount input acquisition elements improves the verity of pass amount input signal and processes On-off signal with the presence or absence of abnormal
The reliability of signal, improves safe effect, as shown in figure 1, comprise the following steps,
Step（A）, it would be desirable to verified On-off signal signal carries out signals collecting by On-off signal acquisition elements；
Step（B）, according to On-off signal acquisition elements output mux amount signal, and correction verification module is sent to, if switch
When amount input acquisition elements are two independent optic coupling elements, as shown in Fig. 2 On-off signal during two independent optic coupling elements is adopted
The schematic diagram of collection element, exports double switch amount signal to correction verification module, and execution step（C）；If On-off signal collection unit
When part is three independent optic coupling elements, three-way switch amount signal is exported to correction verification module, and execution step（D）；
Step（C）, correction verification module according to receive double switch amount signal be compared, judge double switch amount signal whether have
Whether effect and the On-off signal acquisition elements are normal, and process is as follows,
（C1）The very first time threshold value of the different state durations of setting, here the value of very first time threshold value how 0-10 it
Between；
（C2）Correction verification module is compared according to the double switch amount signal for receiving, if there is difference in double switch amount signal, and
Different state durations exceed（C1）The very first time threshold value of setting, then correction verification module send abnormal alarm, double switch
Amount input signal is disarmed state, and the On-off signal acquisition elements exception exits verification；If double switch amount signal is identical,
Then double switch amount signal is effective status, and the On-off signal acquisition elements verification is normal；
Step（D）, correction verification module according to receive three-way switch amount signal be compared, judge three-way switch amount signal whether have
Whether effect and the On-off signal acquisition elements are normal, and process is as follows,
（D1）Second time threshold of the different state durations of setting, here the value of the second time threshold how 0-10 it
Between；
（D2）Correction verification module according to receive three-way switch amount signal be compared, if exist all the way switches amount signal with it is another
The different and different state duration of outer double switch amount signal exceedes（D1）Second time threshold of setting, then verify
Module sends abnormal alarm, and the on-off model of identical two-way is effective status, and the way switch amount signal is disarmed state, the road
Independent optic coupling element exception in the corresponding On-off signal acquisition elements of on-off model；If the mutual not phase of three-way switch amount signal
Together, and the different persistent period exceedes（D1）Setting the second time threshold, then correction verification module send abnormal alarm, three-way switch
Amount signal is disarmed state, and the On-off signal acquisition elements exception exits verification；If three-way switch amount signal is identical,
Three-way switch amount signal is effective status, and the On-off signal acquisition elements verification is normal.
Whether each way switch amount signal is identical, is compared according to the measured value of each way switch amount signal, is opened during high level
The measured value of pass amount signal is 1；The measured value of on-off model is 0 during low level.
As shown in figure 3, the concrete reality that the On-off signal acquisition elements of the present invention are two independent optic coupling elements to be judged
Apply example,
（1）If three-way switch amount signal is respectively a, b, c, correction verification module is compared to three-way switch amount signal a, b, c,
If during a=b, judging whether a is equal to c, if a=c, three-way switch amount signal a, b, c is effective status, the switching value
Input acquisition elements verification is normal；If a ≠ c, on-off model a, b is effective status, exportable, and on-off model c is nothing
Effect state, the independent optic coupling element exception in the corresponding On-off signal acquisition elements of on-off model c；
If during a ≠ b, judging whether a is equal to c, if a=c, on-off model a, c is effective status, exportable, switching value letter
Number b is disarmed state, the independent optic coupling element exception in the corresponding On-off signal acquisition elements of on-off model b；If a ≠ c,
Then judge whether b is equal to c, if b=c, on-off model b, c is effective status, exportable, on-off model a is invalid shape
State, the independent optic coupling element exception in the corresponding On-off signal acquisition elements of on-off model a；If b ≠ c, switching value letter
Number a, b, c are disarmed state, whole On-off signal acquisition elements exception.
In sum, the method for calibration for On-off signal signal of the invention, what is can effectively started identifies out
Input signal is measured in pass, and whether the working condition of effective and pass amount input acquisition elements is with the presence or absence of exception, raising pass amount input letter
Number verity and process On-off signal signal reliability, improve safe effect, have a good application prospect.
Ultimate principle, principal character and the advantage of the present invention has been shown and described above.The technical staff of the industry should
Understand, the present invention is not restricted to the described embodiments, the original for simply illustrating the present invention described in above-described embodiment and description
Reason, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes and improvements
Both fall within scope of the claimed invention.The claimed scope of the invention is by appending claims and its equivalent circle.
It is fixed.
Claims (6)
1. a kind of method of calibration for On-off signal signal, it is characterised in that：Comprise the following steps,
Step（A）, it would be desirable to verified On-off signal signal carries out signals collecting by On-off signal acquisition elements；
Step（B）, according to On-off signal acquisition elements output mux amount signal, and correction verification module is sent to, if switch
When amount input acquisition elements are two independent optic coupling elements, double switch amount signal is exported to correction verification module, and execution step
（C）；If On-off signal acquisition elements are three independent optic coupling elements, three-way switch amount signal is exported to correction verification module, and
Execution step（D）
Step（C）, correction verification module according to receive double switch amount signal be compared, judge double switch amount signal whether have
Whether effect and the On-off signal acquisition elements are normal；
Step（D）, correction verification module according to receive three-way switch amount signal be compared, judge three-way switch amount signal whether have
Whether effect and the On-off signal acquisition elements are normal.
2. a kind of method of calibration for On-off signal signal according to claim 1, it is characterised in that：
Step（C）, correction verification module according to receive double switch amount signal be compared, judge double switch amount signal whether have
Whether effect and the On-off signal acquisition elements are normal, and process is as follows,
（C1）The very first time threshold value of the different state duration of setting；
（C2）Correction verification module is compared according to the double switch amount signal for receiving, if there is difference in double switch amount signal, and
Different state durations exceed（C1）The very first time threshold value of setting, then correction verification module send abnormal alarm, double switch
Amount input signal is disarmed state, and the On-off signal acquisition elements exception exits verification；If double switch amount signal is identical,
Then double switch amount signal is effective status, and the On-off signal acquisition elements verification is normal.
3. a kind of method of calibration for On-off signal signal according to claim 1, it is characterised in that：
Step（D）, correction verification module according to receive three-way switch amount signal be compared, judge three-way switch amount signal whether have
Whether effect and the On-off signal acquisition elements are normal, and process is as follows,
（D1）Second time threshold of the different state duration of setting；
（D2）Correction verification module according to receive three-way switch amount signal be compared, if exist all the way switches amount signal with it is another
The different and different state duration of outer double switch amount signal exceedes（D1）Second time threshold of setting, then verify
Module sends abnormal alarm, and the on-off model of identical two-way is effective status, and the way switch amount signal is disarmed state, the road
Independent optic coupling element exception in the corresponding On-off signal acquisition elements of on-off model；If the mutual not phase of three-way switch amount signal
Together, and the different persistent period exceedes（D1）Setting the second time threshold, then correction verification module send abnormal alarm, three-way switch
Amount signal is disarmed state, and the On-off signal acquisition elements exception exits verification；If three-way switch amount signal is identical,
Three-way switch amount signal is effective status, and the On-off signal acquisition elements verification is normal.
4. a kind of method of calibration for On-off signal signal according to claim 2, it is characterised in that：Described first
The scope of time threshold is the 0-10 seconds.
5. a kind of method of calibration for On-off signal signal according to claim 3, it is characterised in that：Described second
The scope of time threshold is the 0-10 seconds.
6. according to a kind of method of calibration for On-off signal signal of Claims 2 or 3, it is characterised in that：Each way switch
Whether amount signal is identical, is compared according to the measured value of each way switch amount signal, the measured value of on-off model during high level
For 1；The measured value of on-off model is 0 during low level.
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| CN201611115799.4A CN106647697A (en) | 2016-12-07 | 2016-12-07 | Verification method for switching quantity input signals |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110834541A (en) * | 2019-11-15 | 2020-02-25 | 上海元城汽车技术有限公司 | Safety monitoring method and related device |
| CN111025048A (en) * | 2019-11-25 | 2020-04-17 | 深圳供电局有限公司 | Automatic comparison system based on protection device operation data |
| CN111103862A (en) * | 2018-10-25 | 2020-05-05 | 比亚迪股份有限公司 | Digital quantity acquisition circuit with self-diagnosis function |
| CN111376888A (en) * | 2020-03-30 | 2020-07-07 | 北京经纬恒润科技有限公司 | Switch station identification method and device |
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