CN113311695B - Automatic following method for control states of different control places - Google Patents
Automatic following method for control states of different control places Download PDFInfo
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- CN113311695B CN113311695B CN202110452162.9A CN202110452162A CN113311695B CN 113311695 B CN113311695 B CN 113311695B CN 202110452162 A CN202110452162 A CN 202110452162A CN 113311695 B CN113311695 B CN 113311695B
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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
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
- G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Feedback Control In General (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
The invention aims to provide a method for automatically following control states of different control places, which comprises the following steps: 1) the pulse signal from the reset button is converted to a hold signal. The state signal from the reset button is used as the input of the controller, and the holding of a certain signal in the controller is realized until the next pulse signal from the reset button arrives. 2) The control states of the self-reset buttons of different control places are automatically followed. When the main control room is effective, the self-reset button A of the main control room controls the manual and automatic state of the actuator, and when the standby control room is effective, the self-reset button B of the standby control room controls the manual and automatic state of the same actuator. When the main control room and the standby control room are switched, the manual and automatic state of the actuator is not changed until the next pulse signal from the reset button arrives. The invention improves the efficiency and reliability of control operation, and the method can be used as a reference for the design of the operation console of the monitoring system.
Description
Technical Field
The invention relates to a self-reset button control method, in particular to an automatic following method.
Background
For places with higher control function requirements, such as ship control, a control room and a standby control room are generally arranged. When a control room fails or control tasks cannot be continued for some reason, the ability to switch control tasks to a standby control room must be provided. The main control tasks include: all buttons, switches, manual operators and other external inputs of distributed control systems on the control console need to be effectively transferred to a standby control room from the control room to be effective, and corresponding indicator light displays need to be transferred to the standby control room from the control room to be displayed. Taking the operation button as an example, the self-holding type and self-resetting type buttons are widely used and are indispensable operation means in the industry of monitoring systems. The self-holding button is pressed to keep one state, and the other state is opposite to the state that the button is pressed to bounce. From the button of formula that resets, the button is pressed and is changed current state, loosens the automatic bounce of back button. Compared with a self-reset button, the self-hold button is more susceptible to external unstable factors, such as power failure of the upper control, unexpected state change is generated by the self-hold button, and uncontrollable risk is generated by the control of a system. The self-reset button influences the system state at the moment when the button is pressed down, and after the system receives the signal, the system is not influenced by the automatic bounce of the self-reset button any more, so that the control is not influenced even if the upper control is powered down. This feature increases the reliability of the operation control. Meanwhile, when some special operation functions are realized, only a reset button can be used, such as automatic following of control states of different control places. How to convert the pulse signal of the reset button into a holding signal is conventionally implemented in a hardware circuit, but the method is not very flexible in the case of complex manipulation requirements.
Disclosure of Invention
The invention aims to provide a control state automatic following method for different control places, which uses a self-reset button to realize automatic following of control states when different control rooms are switched.
The purpose of the invention is realized as follows:
the invention relates to a method for automatically following control states of different control places, which is characterized by comprising the following steps of:
(1) hold process in controller for 1 self-reset button:
in the controller, the variable corresponding to the self-reset button is I n The signal variable associated therewith is Z n The counting variable is n;
the initial variable relationships are first set: i0 ═ 0, Z0 ═ 0, and n ═ 1;
secondly, writing the implemented logic into a control program: in the 1 st control cycle, if a self-reset pulse appearsOf variable I 1 1, variable Z 1 Device for placing
n is 2; if the self-reset pulse is not present, variable I 1 Still 0, variable Z 1 Unchanged, n is 2; by analogy, the variable Z is set when there is no self-reset pulse in the last cycle and there is self-reset pulse in the cycle n Change is made, otherwise variable Z n Keeping the same;
(2) automatic follow-up processing is performed in the controller for self-reset button operations of two control rooms:
in the controller, the control room switching variable is Q n When Q is 0, the main control room is effective, and the variable corresponding to the self-reset button A is I n (ii) a When Q is equal to 1, the standby control room is effective, and the variable corresponding to the self-reset button B is i n The manual and automatic state variable of the actuator is Z n The counting variable is n;
the initial variable relationships are first set: i0 ═ 0, I0 ═ 0, Z0 ═ 0, and n ═ 1;
secondly, writing the implemented logic into a control program: in the 1 st control period, if the variable Q0 is 0, the main control room is effective, and the variable I in the period is judged 1 And an initial value I 0 Whether 1 and 0, if yes, variable Z 1 Device for placing
n is 2; if the variable Q0 is 1 and the standby control room is valid, the variable i in the period is judged 1 And an initial value i 0 Whether 1 and 0, if yes, variable Z 1 Device for placing
n is 2; under the remaining conditions, the variable Z 1 Are all unchanged; by analogy, if and only if there is no self-reset pulse in the last period of the effective control chamber, there is a self-reset pulse in the period, the variable Z is changed, otherwise the variable Z is kept unchanged.
The invention has the advantages that: the invention uses the self-reset button to realize certain simple and complex functions, and improves the efficiency and the reliability of control operation. The method can be used as a reference for designing a monitoring system operating platform.
Detailed Description
The invention is described in more detail below:
the invention combines the self-reset button and the controller for use, and the following two functions are completed.
1) The pulse signal from the reset button is converted to a hold signal. The state signal from the reset button is used as the input of the controller, and the holding of a certain signal in the controller is realized until the next pulse signal from the reset button arrives.
2) The control states of the self-reset buttons of different control places are automatically followed. When the main control room is effective, the self-reset button A of the main control room controls the manual and automatic state of the actuator, and when the standby control room is effective, the self-reset button B of the standby control room controls the manual and automatic state of the same actuator. When the main control room and the standby control room are switched, the manual and automatic state of the actuator is not changed until the next pulse signal from the reset button comes.
1) First function, hold process in controller for 1 self-reset button:
in the controller, the variable corresponding to the self-reset button is I n A certain signal variable associated therewith is Z n The count variable is n.
The initial variable relationships are first set: I.C. A 0 ＝0，Z 0 ＝0，n＝1。
Secondly, writing the implemented logic into a control program: variable I if self-reset pulse occurs in the 1 st control cycle 1 1, variable Z 1 Device for placing
n is 2; if the self-reset pulse is not present, variable I 1 Still 0, variable Z 1 Unchanged, n is 2; by analogy, the variable Z is set when and only when there is no self-reset pulse in the last cycle and there is self-reset pulse in the present cycle n Change is made, otherwiseVariable Z n Remain unchanged.
2) The second function, automatic follow-up processing is performed in the controller for the self-reset button operations of the two control rooms:
in the controller, the control room switching variable is Q n When Q is 0, the main control room is effective, and the variable corresponding to the self-reset button A is I n (ii) a When Q is equal to 1, the standby control room is effective, and the variable corresponding to the self-reset button B is i n . The manual and automatic state variable of the actuator is Z n The count variable is n.
The initial variable relationships are first set: I.C. A 0 ＝0，i 0 ＝0，Z 0 ＝0，n＝1。
Secondly, writing the implemented logic into a control program: in the 1 st control period, if the variable Q 0 0, the main control room is effective, and the variable I of the period is judged 1 And an initial value I 0 Whether 1 and 0, if yes, variable Z 1 Device for placing
n is 2; if variable Q 0 1, the standby control room is effective, and a variable i of the period is judged 1 And an initial value i 0 Whether 1 and 0, if yes, variable Z 1 Device for placing
n is 2. Under other conditions, variable Z 1 Are all unchanged. And by analogy, if and only if no self-reset pulse exists in the last period of the effective control chamber and a self-reset pulse exists in the period, the variable Z is changed, and otherwise, the variable Z is kept unchanged.
Claims (1)
1. A method for automatically following control states of different control places is characterized in that:
(1) hold process for 1 self reset button in controller:
in the controller, the variable corresponding to the self-reset button is I n The signal variable associated therewith is Z n The counting variable is n;
the initial variable relationships are first set: i0 ═ 0, Z0 ═ 0, n ═ 1;
secondly, writing the implemented logic into a control program: in the 1 st control cycle, if a self-reset pulse occurs, a variable I 1 1, variable Z 1 Device for placing
n is 2; if the self-reset pulse is not present, variable I 1 Still 0, variable Z 1 Unchanged, n is 2; by analogy, the variable Z is set when there is no self-reset pulse in the last cycle and there is self-reset pulse in the cycle n Change is made, otherwise variable Z n Keeping the original shape;
(2) the automatic following processing is carried out on the self-reset button operations of the two control rooms in the controller:
in the controller, the control room switching variable is Q n When Q is 0, the main control room is effective, and the variable corresponding to the self-reset button A is I n (ii) a When Q is equal to 1, the standby control room is effective, and the variable corresponding to the self-reset button B is i n The manual and automatic state variable of the actuator is Z n The counting variable is n;
the initial variable relationships are first set: i0 ═ 0, I0 ═ 0, Z0 ═ 0, and n ═ 1;
secondly, writing the implemented logic into a control program: in the 1 st control period, if the variable Q0 is 0, the main control room is effective, and the variable I in the period is judged 1 And an initial value I 0 Whether 1 and 0, if yes, variable Z 1 Device for placing
n is 2; if the variable Q0 is 1, the standby control room is valid, and the variable i in the period is judged 1 And an initial value i 0 Whether 1 and 0, if yes, variable Z 1 Device for placing
n is 2; under the remaining conditions, the variable Z 1 Are all unchanged; and so on, if and only if there is no self-reset pulse in the last cycle of the effective control room,when the self-reset pulse exists in the period, the variable Z is changed, otherwise, the variable Z is kept unchanged.
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Effective date of registration: 20230911 Address after: No.35, Honghu Road, Yingbin Road concentration zone, hi tech Development Zone, Harbin, Heilongjiang Province Patentee after: GRAND NEW POWER Co.,Ltd. Address before: No.35, Honghu Road, Daoli District, Harbin City, Heilongjiang Province Patentee before: The 703nd Research Institute of China Shipbuilding Industry Corporation |
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