CN104454344B - A kind of efficient conditional code latch reset design method - Google Patents
A kind of efficient conditional code latch reset design method Download PDFInfo
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- CN104454344B CN104454344B CN201410565942.4A CN201410565942A CN104454344B CN 104454344 B CN104454344 B CN 104454344B CN 201410565942 A CN201410565942 A CN 201410565942A CN 104454344 B CN104454344 B CN 104454344B
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention discloses a kind of efficient conditional code latch reset design method, it is characterised in that：Conditional code Array for structural body is initially set up, is handled according to a series of actions such as locking of this Array for structural body to conditional code, reset, shieldings by a kind of simple mode so that the subprogram possesses the features such as readable strong, succinct, efficient：1. which can be succinct, the purpose that the conditional code of blower fan is latched, resetted and shielded is rapidly reached, only can complete all actions by a logical relation judges code without substantial amounts of logical statement, increases the readability of program；2. the design is by the trigger condition of conditional code, the action such as the latch of reset condition and conditional code, reset, shielding is peeled off；So designer with more convenient by adding, deleting, changing conditional code, the problem of without worrying program error caused by complicated logic, can increase the maintainability of program.
Description
Technical field
The present invention relates to the conditional code used in blower fan control system, and in particular to a kind of efficient conditional code latch reset
Design method.
Background technology
With the universalness of wind-powered electricity generation and the increase of installed capacity, power network and wind power plant owner propose to air-blower control part
More, higher functional requirement, this air-blower control logic for allowing for script need to modify every now and then, and this is just to designer
Member proposes higher requirement, it is necessary in the case where ensureing safety and existing function to complete adding for New function in the short period
Add and system test.
The latch of conditional code is occurred after conditional code triggering, and trigger condition does not terminate or trigger condition is over, but
A kind of protection act carried out during reset condition is not met also.In the controls, the latch of conditional code is extremely important, and it is straight
The stability and security for affecting control system are connect, determines execution action and the man-machine safety of control system.
At present, the various control system including air-blower control is all employed by state machine to realize control output
Mode, which possess clear logic for control system, and program realizes more conveniently advantage.But which is scarce
Point is also more obvious, that is, the triggering of state machine is largely dependent on the particular state residing for conditional code.Especially increasing
Add, delete, when changing conditional code, it is necessary to it is double cautious, cause system to be in a mistake to avoid conditional code modification mistake
State machine, so as to cause the damage to control system by mistake.
The content of the invention
The present invention, can be with order to solve the above technical problems, provide a kind of efficient conditional code latch reset design method
The actions such as locking, reset, shielding to the trigger condition of conditional code, reset condition, shielding condition and conditional code are separated,
What addition so as to largely conditions of support code and modification did not influenceed conditional code performs action；Latch for conditional code,
The action such as reset and shielding only needs a logical operation formula that repertoire can be achieved, and reduces the amount of writing of code, carries
The high readability and reliability of program.
Technical scheme is as follows：
A kind of efficient conditional code latch reset design method, it is characterised in that：Conditional code Array for structural body is initially set up,
Be set to Statu [i], wherein i is specific required state number of codes, the attribute of each conditional code structure set comprise at least with
Under several sign：
State triggering sign：Tripping；
State latch indicates：Tripped；
State reset indicates：Reset；
State mask marker：Fobbid；
Four signs are BOOL amounts（Boolean type variable）.
According to the conditional code Array for structural body of above-mentioned foundation, then it can realize and touching for conditional code is write in individual document
Hair, reset condition and mask switch：
Trigger the page：Statu[i].Tripping = A&B；（A, B are respectively writing a Chinese character in simplified form for condition）；
Reset the page：Statu[i].Reset =C|D；（C, D are respectively writing a Chinese character in simplified form for reset condition）；
Shield the page：Statu[i].Fobbid = 0；（1- represents to shield the state；0- represents not shield）；
After writing conditional code, it is also necessary to latched the state of conditional code by equation below：
Statu[i].Tripped=(Statu[i].Tripping|(Statu[i].Tripped&(!Statu[i]
.Reset)))&(! Statu[i].Fobbid)；
Above-mentioned steps completely embody a series of processes of latch, reset and the shielding of conditional code, dexterously by conditional code
Each state combine with logical operator, both saved size of code, and simple readability, embodied very strong logicality.
By above-mentioned steps, triggering, latch, reset and shielding a series of actions for completing conditional code are write.It is corresponding
For whole control system, remaining work just only needs control action corresponding to establishment.
In addition, when establishing conditional code Array for structural body, the sign that the attribute of each conditional code structure is set can also root
Need to increase other signs, such as conditional code triggered time, checkout time etc. according to system.
Beneficial effects of the present invention are as follows：
The present invention is that occur during the conditional code used in blower fan control system is modified, adds and deleted
Complexity, the one kind being extract in the thinking and practice of the code revision work of redundancy is succinct, efficient conditional code processing mode,
And the fields such as air-blower control and pitch control have been successfully applied to it.Intrinsically, every control for being related to state machine
Field, which is applicable, possesses very strong adaptability and scalability, can increase the readable and maintainable of program,
Ensure the stability and correctness of control logic；The present invention can by the trigger condition of conditional code, reset condition, shielding condition with
The actions such as the locking of conditional code, reset, shielding are separated, the not shadow of the addition and modification so as to largely conditions of support code
That rings conditional code performs action；The actions such as latch, reset and shielding for conditional code only need a logical operation formula i.e.
Repertoire can be achieved, reduce the amount of writing of code, improve the readability and reliability of program.
Brief description of the drawings
Fig. 1 is the logic diagram of state of the present invention locking.
Embodiment
A kind of efficient conditional code latch reset design method, is to initially set up conditional code Array for structural body, is specifically defined
It is as follows：
STRUCT
SC_Tripping : BOOL；（* state triggering *）
SC_Tripped : BOOL；（* state latch *）
SC_Fobbid : BOOL；（* state shielding *）
SC_Reset : BOOL；（* conditional code resets *）
END_STRUCT
Instantiate conditional code Array for structural body, array length 100：
G _SC : ARRAY[1..100] OF Statu；
According to the conditional code Array for structural body of above-mentioned foundation, the latch of 100 conditional codes：
FOR i:=1 TO 100 DO
G _SC[i].SC_Tripped := （G _SC[i].SC_Tripping OR（G _SC[i].SC_Tripped
AND NOT G _SC[i].SC_Reset ）） AND （NOT G _SC[i].SC_Fobbid）；
END_FOR
In above-mentioned steps, the logic diagram of state locking is as shown in Figure 1.
Claims (2)
- A kind of 1. efficient conditional code latch reset design method, it is characterised in that：Conditional code Array for structural body is initially set up, if For Statu [i], wherein i is specific required state number of codes, and the attribute of each conditional code structure is set including at least following Several signs：State triggering sign：Tripping；State latch indicates：Tripped；State reset indicates：Reset；State mask marker：Fobbid；Four signs are Boolean type variable；According to the conditional code Array for structural body of above-mentioned foundation, then it can realize and triggering, being multiple for conditional code is write in individual document Position condition and mask switch：Trigger the page：Statu[i].Tripping = A&B；Wherein, A, B are respectively writing a Chinese character in simplified form for condition；Reset the page：Statu[i].Reset =C|D；Wherein, C, D are respectively writing a Chinese character in simplified form for reset condition；Shield the page：Statu[i].Fobbid = 0；Wherein, 1- represents to shield the state；0- represents not shield；After writing conditional code, also need to be latched the state of conditional code by equation below：Statu[i].Tripped=(Statu[i].Tripping|(Statu[i].Tripped&(!Statu[i] .Reset)))&(! Statu[i].Fobbid)。
- A kind of 2. efficient conditional code latch reset design method according to claim 1, it is characterised in that：Establishing shape During state code Array for structural body, the sign that the attribute of each conditional code structure is set needs to be provided with other signs according to system, Including conditional code triggered time sign, checkout time sign.
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| CN201410565942.4A CN104454344B (en) | 2014-10-22 | 2014-10-22 | A kind of efficient conditional code latch reset design method |
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| CN104454344B true CN104454344B (en) | 2017-12-29 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101604265A (en) * | 2008-06-13 | 2009-12-16 | 艾默生网络能源系统北美公司 | A kind of reset locking shielding circuit of watchdog circuit |
| CN102214124A (en) * | 2011-06-08 | 2011-10-12 | 深圳市理邦精密仪器股份有限公司 | Watchdog reset control system |
| CN102748215A (en) * | 2012-07-12 | 2012-10-24 | 国电南京自动化股份有限公司 | Safety chain system of wind generating set and fault rapid identification method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10030991A1 (en) * | 2000-06-30 | 2002-01-10 | Bosch Gmbh Robert | Microcontroller and watchdog operation synchronization method for vehicle control device, involves operating watchdog based on time period elapsed after booting up to resetting operation of microcontroller |
-
2014
- 2014-10-22 CN CN201410565942.4A patent/CN104454344B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101604265A (en) * | 2008-06-13 | 2009-12-16 | 艾默生网络能源系统北美公司 | A kind of reset locking shielding circuit of watchdog circuit |
| CN102214124A (en) * | 2011-06-08 | 2011-10-12 | 深圳市理邦精密仪器股份有限公司 | Watchdog reset control system |
| CN102748215A (en) * | 2012-07-12 | 2012-10-24 | 国电南京自动化股份有限公司 | Safety chain system of wind generating set and fault rapid identification method thereof |
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Address after: 618000 No. 18, Third Section of Lushan South Road, Deyang City, Sichuan Province Patentee after: Dongfang Electric Automatic Control Engineering Co., Ltd. Address before: 618099 No. 18, Section 3, Lushan South Road, Deyang City, Sichuan Province Patentee before: Sichuan Orient Electric Automatic Control Engineering Co., Ltd. |
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