CN102915011A - Method and device for solving median from five parameters by distributed control system - Google Patents
Method and device for solving median from five parameters by distributed control system Download PDFInfo
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- CN102915011A CN102915011A CN2012103638462A CN201210363846A CN102915011A CN 102915011 A CN102915011 A CN 102915011A CN 2012103638462 A CN2012103638462 A CN 2012103638462A CN 201210363846 A CN201210363846 A CN 201210363846A CN 102915011 A CN102915011 A CN 102915011A
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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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Abstract
The invention discloses a method for solving median from five parameters by a distributed control system. The method includes: obtaining five parameters in the distributed control system; solving the median of three parameters X1, X2 and X3 from the five parameters to obtain parameter A; solving the high value of the parameters X1, X2 and X3 to obtain parameter B; solving the low value of the parameters X1, X2 and X3 to obtain parameter C; solving the median of the rest two parameters X4 and X5 from the five parameters and the parameter A to obtain parameter D; solving the median of parameters B, C and D, and thereby, solving the median of the five parameters.
Description
Technical field
The present invention relates to automation field, particularly, relate to a kind of dcs that realizes and five parameters are got method and the device of middle operation.
Background technology
DCS is that the English of dcs is write a Chinese character in simplified form (Distributed Control System), the robotization control of the industries such as it is widely used in generating electricity, chemical industry, subway, pharmacy, the three modeling pieces that moulding is all arranged in the function storehouse of present all kinds of DCS, can realize three get in, three get low, three get the operation that height, three is averaged.And for some Industry Control, sometimes need to use five to get middle operation, exactly the parameter of five Real-time Collections is got the operation of intermediate value.And do not have moulding in all kinds of DCS system that uses at present and fairly simple to five parameters get the method for middle operation and five parameters are got in functional block.
Summary of the invention
The purpose of this invention is to provide a kind of for realizing that dcs gets method and the device of operation to five parameters.Operation in can realizing five parameters are got by the method.
To achieve these goals, the invention provides a kind of dcs that realizes five parameters are got the method for middle operation, the method comprises: obtain five parameters in the described dcs; Three parameter X 1, X2 and X3 in described five parameters are got middle operation, obtain parameter A; Described parameter X 1, X2 and X3 are got high operation, obtain B parameter; Described parameter X 1, X2 and X3 are got low operation, obtain parameters C; Remaining two parameter X 4 and X5 and described parameter A in described five parameters are got middle operation, obtain parameter D; And described B parameter, C and D got middle operation, the operation in realizing described five parameters are got.
Preferably, realize describedly getting middle operation, describedly getting high operation and describedly get low operation by three modeling pieces.
The present invention also provides a kind of dcs that realizes that five parameters are got the device of middle operation, and this device comprises: first three modelings piece, be used for three parameter X 1, X2 and X3 of described five parameters are got middle operation, and obtain parameter A; Second three modeling piece is used for described parameter X 1, X2 and X3 are got high operation, obtains B parameter; The 3rd three modeling pieces are used for described parameter X 1, X2 and X3 are got low operation, obtain parameters C; The 4th three modeling pieces are used for remaining two parameter X 4 of described five parameters and X5 and described parameter A are got middle operation, obtain parameter D; And the 5th three modeling pieces, be used for described B parameter, C and D are got operation the operation during realization is got described five parameters.
Utilize technique scheme, by getting middle operation, get high operation and getting low simple to operately and realize exactly dcs to the middle operation of getting of five parameters, this need to use the industrial process control configuration that five parameters are got middle operation for all and all have very practical reference value.
Other features and advantages of the present invention will partly be described in detail in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide a further understanding of the present invention, and consists of the part of instructions, is used from explanation the present invention with following embodiment one, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is that boiler bed is pressed the measuring point synoptic diagram;
Fig. 2 is that present DCS gets the block diagram of middle operation to five parameters;
Fig. 3 is that DCS according to the present invention gets the block diagram of middle operation to five parameters.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.Should be understood that embodiment described herein only is used for description and interpretation the present invention, is not limited to the present invention.
Fig. 1 is that boiler bed is pressed the measuring point synoptic diagram.The boiler that uses in the generation current factory has Circulating Fluidized Bed Boiler, and wherein boiler bed presses measuring point to be divided into the bottom and middle part pressure is two-layer, and there are respectively five measuring points on every layer left side or right side, as shown in Figure 1.Press five measuring points on left side or right side all to require to get middle operation for every layer of bed, to obtain intermediate value.
To design according to mode shown in Figure 2 to the middle operation of getting of five parameters before this.Operation in as seen in Figure 2 should be to five parameters getting is carried out getting for twice three middle operation with three modeling pieces 11 and three modeling pieces 12 and is finished operation during five parameters are got.And the operation of the realization that in fact this method of operating can not be real during five parameters are got.For example, suppose that parameter X 1, parameter X 2, parameter X 3, parameter X 4 and parameter X 5 are respectively 4,6,5,7,8, according to the described method of Fig. 2, with parameter X 1, parameter X 2 and parameter X 3, namely 4,6 and 5 input to and carry out three in the three modeling pieces 11 and get value of obtaining 5 after the middle operation, then with parameter X 4, X5 and numerical value 5, namely 7,8 and 5 input to and carry out three in the three modeling pieces 12 and get value of obtaining 7 after the middle operation, and in fact 4,6,5,7 and 8 intermediate value is 6, is inaccurate in some cases so utilize the operation in the method finishes five parameters are got.
Fig. 3 be according to the present invention in DCS five parameters are got the block diagram of middle operation.From four groups of pressure-measuring-points shown in Figure 1 (every group of pressure-measuring-point comprises five measuring points), obtain any one group of parameter, and be expressed as parameter X 1, parameter X 2, parameter X 3, parameter X 4 and parameter X 5.As shown in Figure 3, to obtain parameter X 1, parameter X 2, parameter X 3 inputs to carries out three in the three modeling pieces 21 and chooses operation, obtain parameter A, input to and carry out the high operation of three choosings in the three modeling pieces 22, obtain B parameter, input to and carry out the low operation of three choosings in the three modeling pieces 23, obtain parameters C, then with parameter X 4, parameter X 5 and parameter A input to carries out three in the three modeling pieces 24 and gets middle operation, obtain parameter D, at last with resulting B parameter, C, D inputs to and carries out three in the three modeling pieces 25 and get middle operation, thereby finally obtains parameter X 1, parameter X 2, parameter X 3, the intermediate value of parameter X 4 and parameter X 5.
Suppose the parameter X 1 of acquisition, parameter X 2, parameter X 3, parameter X 4 and parameter X 5 are respectively 4,6,5,7,8, according to the described method of Fig. 2, with parameter X 1, parameter X 2 and parameter X 3, namely 4,6 and 5 input to and carry out three in the three modeling pieces 21 and get value of obtaining 5 after the middle operation, input to and carry out three in the three modeling pieces 22 and get value of obtaining 6 after the high operation, input to and carry out three in the low module 23 of three choosings and get value of obtaining 4 after the low operation, then with parameter X 4, parameter X 5 and 5, namely 7,8 and 5 input to and carry out three in the three modeling pieces 24 and get value of obtaining 7 after the middle operation, at last with resulting value 6,4,7 input to and carry out three in the three modeling pieces 25 and choose operation, finish the operation during five parameters are got, obtain intermediate value 6.
Operation during five parameters are got provided by the invention can be by existing three modeling pieces, the operation in simply and accurately realizing five parameters are got in DCS.
Below describe by reference to the accompanying drawings preferred implementation of the present invention in detail; but; the present invention is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.For example, three modeling pieces can be changed into the operation in realizing five parameters are got such as instruction list (IL), ladder diagram (LD), SFC (SFC), structured text (ST).Concrete grammar repeats no more, in a word with method of operating provided by the invention roughly the same, all belong to this patent scope.
Need to prove in addition, each concrete technical characterictic described in above-mentioned embodiment in reconcilable situation, can make up by any suitable mode, for fear of unnecessary repetition, the present invention is to the no longer separately explanation of various possible array modes.
In addition, also can carry out combination in any between the various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (3)
1. realize that dcs gets the method for middle operation to five parameters for one kind, the method comprises:
Obtain five parameters in the described dcs;
Three parameter X 1, X2 and X3 in described five parameters are got middle operation, obtain parameter A;
Described parameter X 1, X2 and X3 are got high operation, obtain B parameter;
Described parameter X 1, X2 and X3 are got low operation, obtain parameters C;
Remaining two parameter X 4 and X5 and described parameter A in described five parameters are got middle operation, obtain parameter D; And
Described B parameter, C and D are got middle operation, the operation during realization is got described five parameters.
2. method according to claim 1 wherein realizes describedly getting middle operation, describedly getting high operation and describedly get low operation by three modeling pieces.
3. realize that dcs gets the device of middle operation to five parameters for one kind, this device comprises:
First three modelings piece is used for three parameter X 1, X2 and X3 of described five parameters are got middle operation, obtains parameter A;
Second three modeling piece is used for described parameter X 1, X2 and X3 are got high operation, obtains B parameter;
The 3rd three modeling pieces are used for described parameter X 1, X2 and X3 are got low operation, obtain parameters C;
The 4th three modeling pieces are used for remaining two parameter X 4 of described five parameters and X5 and described parameter A are got middle operation, obtain parameter D; And
The 5th three modeling pieces are used for described B parameter, C and D are got operation, the operation during realization is got described five parameters.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439890A (en) * | 2013-08-19 | 2013-12-11 | 中国神华能源股份有限公司 | Simulation system and method based on one-machine virtual DPU |
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| US4662443A (en) * | 1985-12-05 | 1987-05-05 | Amoco Corporation | Combination air-blown and oxygen-blown underground coal gasification process |
| JP2000028103A (en) * | 1998-07-10 | 2000-01-25 | Hitachi Ltd | Thermal electric power plant control device |
| CN101034009A (en) * | 2007-04-09 | 2007-09-12 | 上海发电设备成套设计研究院 | Online detecting, soot blowing and optimal energy-saving method for large coal-fired boiler |
| CN101709863A (en) * | 2009-12-18 | 2010-05-19 | 杭州电子科技大学 | Hybrid control method for furnace pressure system of coal-fired boiler |
| CN101907685A (en) * | 2010-06-18 | 2010-12-08 | 华北电力大学 | Method for checking correctness of operating parameters of generator set capable of adapting to change of operating conditions |
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- 2012-09-26 CN CN201210363846.2A patent/CN102915011B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4662443A (en) * | 1985-12-05 | 1987-05-05 | Amoco Corporation | Combination air-blown and oxygen-blown underground coal gasification process |
| JP2000028103A (en) * | 1998-07-10 | 2000-01-25 | Hitachi Ltd | Thermal electric power plant control device |
| CN101034009A (en) * | 2007-04-09 | 2007-09-12 | 上海发电设备成套设计研究院 | Online detecting, soot blowing and optimal energy-saving method for large coal-fired boiler |
| CN101709863A (en) * | 2009-12-18 | 2010-05-19 | 杭州电子科技大学 | Hybrid control method for furnace pressure system of coal-fired boiler |
| CN101907685A (en) * | 2010-06-18 | 2010-12-08 | 华北电力大学 | Method for checking correctness of operating parameters of generator set capable of adapting to change of operating conditions |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103439890A (en) * | 2013-08-19 | 2013-12-11 | 中国神华能源股份有限公司 | Simulation system and method based on one-machine virtual DPU |
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