CN103472795A - Device and method for reducing instrument control mistaken interlocking - Google Patents
Device and method for reducing instrument control mistaken interlocking Download PDFInfo
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- CN103472795A CN103472795A CN201310410433XA CN201310410433A CN103472795A CN 103472795 A CN103472795 A CN 103472795A CN 201310410433X A CN201310410433X A CN 201310410433XA CN 201310410433 A CN201310410433 A CN 201310410433A CN 103472795 A CN103472795 A CN 103472795A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention relates to a device and method for reducing instrument control mistaken interlocking. The device for reducing instrument control mistaken interlocking comprises a distributed control system. The signal input end of the distributed control system is connected with an instrument, the control output end is connected with an executing mechanism, and the distributed control system is provided with a detection module and a judgment module. The device for reducing instrument control mistaken interlocking is simple in structure, capable of optimizing the interlocking method, convenient to use, simple, easy to operate, and capable of avoiding adverse influence on normal interlocking of a unit and providing a powerful guarantee for stable operation of the large-scale unit.
Description
Technical field
The present invention relates to a kind of instrument measurement interlocking signal device that judges whether normally, especially a kind of device that reduces instrument control mistake interlocking, also have method, belongs to large-scale unit interlocking optimized device technical field.
Background technology
The measuring point of large-scale unit participation interlocking is more, causes thus the also corresponding increase of probability of interlock shutdown because of the fault of measuring point itself, brings greater risk to the stable operation of unit.Therefore thin and need a kind of can the true and false method of automatic decision interlocking signal, the mistakenly stop car caused to reduce the fault of instrument own.
Summary of the invention
The object of the invention is to: the problem existed for above-mentioned prior art proposes the device and method that minimizing instrument control mistake a kind of simple in structure, reasonable in design is interlocked.
In order to reach above purpose, the device and method of minimizing instrument control mistake interlocking of the present invention, it is characterized in that, this device comprises scattered control system, the signal input part of described scattered control system and Instrument connection, control output end is connected with topworks, and scattered control system has detection module and judge module; The method of this device comprises the following steps:
The off-position of one, establishing instrument is 0, and "on" position is 1, the state of the detection module identification instrument of scattered control system, and judge according to (1) formula whether instrument cuts off the power supply,
Y=0 （1）
If Y=0, enter step 2, if Y=1, EO, topworks carries out interlocked operation;
The normal condition of two, establishing instrument is 0, and malfunction is 1, the running status of detection module identification instrument, and judge that according to (2) formula whether instrumentation is normal,
Yˊ=0 （2）
If Y is ˊ=0, EO, if Y is ˊ=and 1, enter step 3;
Three, establishing interlocking signal is glitch 0, and the judge module of scattered control system judges according to (3) formula whether interlocking signal is glitch,
Y〞 =0 （3）
If Y is 〞=0, enter step 4, if Y is 〞 ≠ 0, EO;
Four, scattered control system judgement interlocking signal is glitch, controls topworks and does not carry out interlock shutdown.
It is that, in described step 1 and two, scattered control system sends a signal to actuating mechanism controls topworks and carries out interlocked operation that the present invention further improves.
It is that, in described step 3, after EO, manually-operated is to stop Concatenate shut-down that the present invention further improves.
The invention has the advantages that: the apparatus structure that the present invention reduces instrument control mistake interlocking is simple, method is truly feasible, has optimized interlock method, more convenient, succinct, easy to operate, avoided bringing adverse effect to the normal interlocking of unit, for the stable operation of large-scale unit provides powerful guarantee.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is instrument signal determining program figure of the present invention.
Embodiment
Embodiment mono-
The present embodiment reduces the device of instrument control mistake interlocking, as shown in Figure 1, comprise scattered control system, scattered control system is called for short DCS, the signal input part of scattered control system and Instrument connection, and control output end is connected with topworks, wherein scattered control system is called for short DCS, the scattered control system system has detection module and judge module, the input end of judge module and Instrument connection, and control output end is connected with the switch of large-scale unit.
During actual the use, in the situation that do not change field wiring, utilize module in DCS to carry out alarm analysis to the Quality Codes of analog input, then judge module is according to channel failure alarm set point, instrument measurement signal and the door operation of detection module output, judge whether interlocking signal is glitch, if instrument is cut off the power supply or broken down, and is glitch by this interlocking signal of automatic decision, control not interlock shutdown of large-scale unit.Its principle is shown in Fig. 2, detection module detects the Quality Codes of TIAS1212 analog input, when having channel failure, the IO output terminal is output as 1, after negate, be 0, when participating in next stage and calculating with door, no matter the LS output terminal of judge module is 1 or 0, result is all 0, can not cause the interlocking (see figure 2).
The method of the present embodiment comprises the following steps: the off-position of, establishing instrument is 0, "on" position is 1, the state of the detection module identification instrument of scattered control system, and judge according to (1) formula (being Y=0) whether instrument cuts off the power supply, if Y=0, enter step 2, if Y=1, EO, topworks carries out interlocked operation; The normal condition of two, establishing instrument is 0, and malfunction is 1, the running status of detection module identification instrument, and judge that according to (2) formula (Y ˊ=0) whether instrumentation is normal, if Y is ˊ=0, and EO, if Y is ˊ=and 1, enter step 3; Three, establishing interlocking signal is glitch 0, and the judge module of scattered control system judges according to (3) formula (Y 〞=0) whether interlocking signal is glitch, if Y is 〞=0, enters step 4, if Y is 〞 ≠ 0, and EO; Four, scattered control system judgement interlocking signal is glitch, controls topworks and does not carry out interlock shutdown.
Separately, in step 1 and two, scattered control system sends a signal to actuating mechanism controls topworks and carries out interlocked operation.In step 3, after EO, manually-operated is to stop Concatenate shut-down.
In addition to the implementation, the present invention also can have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, drop on the protection domain of requirement of the present invention.
Claims (3)
1. one kind is reduced the device and method that the instrument control mistake is interlocked, it is characterized in that, this device comprises scattered control system, the signal input part of described scattered control system and Instrument connection, control output end is connected with topworks, and scattered control system has detection module and judge module; The method of this device comprises the following steps:
The off-position of one, establishing instrument is 0, and "on" position is 1, the state of the detection module identification instrument of scattered control system, and judge according to (1) formula whether instrument cuts off the power supply,
Y=0 （1）
If Y=0, enter step 2, if Y=1, EO, topworks carries out interlocked operation;
The normal condition of two, establishing instrument is 0, and malfunction is 1, the running status of detection module identification instrument, and judge that according to (2) formula whether instrumentation is normal,
Yˊ=0 （2）
If Y is ˊ=0, EO, if Y is ˊ=and 1, enter step 3;
Three, establishing interlocking signal is glitch 0, and the judge module of scattered control system judges according to (3) formula whether interlocking signal is glitch,
Y〞 =0 （3）
If Y is 〞=0, enter step 4, if Y is 〞 ≠ 0, EO;
Four, scattered control system judgement interlocking signal is glitch, controls topworks and does not carry out interlock shutdown.
2. the method that minimizing instrument control mistake according to claim 1 is interlocked, it is characterized in that: in described step 1 and two, scattered control system sends a signal to actuating mechanism controls topworks and carries out interlocked operation.
3. the device that minimizing instrument control mistake according to claim 1 is interlocked, it is characterized in that: in described step 3, after EO, manually-operated is to stop Concatenate shut-down.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310410433XA CN103472795A (en) | 2013-09-11 | 2013-09-11 | Device and method for reducing instrument control mistaken interlocking |
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| CN201310410433XA CN103472795A (en) | 2013-09-11 | 2013-09-11 | Device and method for reducing instrument control mistaken interlocking |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106198005A (en) * | 2016-08-30 | 2016-12-07 | 北京首钢自动化信息技术有限公司 | A kind of multiaxis shakes the method that monitoring point blower fan Shaft chattering fluctuation judges and processes |
| CN110955204A (en) * | 2019-11-12 | 2020-04-03 | 铜陵有色金属集团股份有限公司 | Equipment fault interlocking system and method |
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Application publication date: 20131225 |