CN113138578A - Air valve control execution device and control method thereof - Google Patents
Air valve control execution device and control method thereof Download PDFInfo
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- CN113138578A CN113138578A CN202110532575.8A CN202110532575A CN113138578A CN 113138578 A CN113138578 A CN 113138578A CN 202110532575 A CN202110532575 A CN 202110532575A CN 113138578 A CN113138578 A CN 113138578A
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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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
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Abstract
The invention relates to an air valve control execution device, which comprises a main control module and a power supply module, wherein the main control module is respectively connected with a switching signal detection module, a position detection module, a motor control module and a feedback signal output module; the main control module is used for controlling the motor control module to drive the air valve actuator to rotate according to a switch direction signal input by the switch signal detection module, the position detection module is used for detecting the rotating position of the air valve actuator in real time, and the main control module is used for controlling the feedback signal output module to output a feedback signal for switching in place, switching in place or giving a fault alarm according to the rotating position of the air valve actuator detected by the position detection module in real time. The invention also relates to a control method of the air valve control execution device. The invention not only has small-angle opening function, but also can detect the fault of the air outlet valve control execution device in time.
Description
Technical Field
The invention relates to the technical field of air valve equipment, in particular to an air valve control execution device and a control method thereof.
Background
At present, the integrated air valve actuator adopting the switching value control mode can only realize the control of the full-on state and the full-off state of the valve, and meanwhile, the switching state feedback signals of the mechanism are realized by two groups of mechanical micro switches, and only the full-off feedback signals and the full-on feedback signals are obtained. The requirement that a valve needs to be half-opened at a certain angle in a field use environment is met, and the existing air valve actuator in a switching value control mode cannot achieve the function.
The angle of the feedback signal is set by a manual screw adjusting tabletting mechanism, the feedback signal exists only under the conditions of in-place opening and in-place closing, and the feedback signal is wrong or missing due to deviation of the feedback angle caused by loosening of the screw after long-time use.
If the air valve actuator mechanism or the air valve is blocked due to faults in the using process, the air valve actuator cannot rotate, and the existing product cannot judge whether the air valve actuator works normally or fails at the first time.
Disclosure of Invention
The invention aims to solve the technical problem of providing an air valve control execution device and a control method thereof, which not only have a small-angle opening function, but also can detect the fault of the air valve control execution device in time.
The technical scheme adopted by the invention for solving the technical problems is as follows: the air valve control execution device comprises a main control module and a power supply module, wherein the main control module is respectively connected with a switching signal detection module, a position detection module, a motor control module and a feedback signal output module, the motor control module is connected with an air valve actuator, and the power supply module is used for supplying power to the main control module;
the main control module is used for controlling the motor control module to drive the air valve actuator to rotate according to the switch direction signal input by the switch signal detection module, the position detection module is used for detecting the rotating position of the air valve actuator in real time, and the main control module is used for controlling the feedback signal output module to output a feedback signal for switching on or off in place or giving a fault alarm according to the rotating position of the air valve actuator detected by the position detection module in real time.
The wind valve actuator rotation detection device comprises a main control module and a feedback signal output module, and is characterized by further comprising a small opening angle setting module connected with the main control module, wherein the small opening angle setting module is used for setting a small opening angle of the wind valve actuator, the main control module is used for comparing the small opening angle of the wind valve actuator set by the small opening angle setting module with the rotation position of the wind valve actuator actually detected by the position detection module, and controlling the feedback signal output module to output a feedback signal of the small opening angle in place or fault alarm according to a comparison result.
The small opening angle setting module sets the small opening angle of the air valve actuator to be within the range of 10-85 degrees.
The position detection module comprises a variable resistance unit, and the position detection module detects the rotating position of the air valve actuator in real time through the variable resistance unit.
The feedback signal output module comprises a relay, and outputs a feedback signal for switching on or off in place or giving a fault alarm through the relay.
The master control module is internally provided with a single chip microcomputer, and the model of the single chip microcomputer is STC8G1K 08.
The power supply module adopts 220V alternating current for power supply.
The technical scheme adopted by the invention for solving the technical problems is as follows: provided is a control method of an air valve control execution device, comprising the following steps:
step (1): the main control module controls a motor control module to drive an air valve actuator to rotate according to the switch direction signal detected by the switch signal detection module;
step (2): the rotation position of the air valve actuator detected in real time is transmitted to the main control module through the position detection module;
and (3): and according to the received rotation position of the air valve actuator, the main control module controls the feedback signal output module to output a feedback signal for opening in place, closing in place or giving a fault alarm.
The step (3) is specifically as follows:
when the main control module detects that the motor control module is locked and the rotation position of the air valve actuator is in the in-place opening position, outputting an in-place opening feedback signal through the feedback signal output module;
when the main control module detects that the motor control module is locked and the rotation position of the air valve actuator is in the closed position, a closed position feedback signal is output through the feedback signal output module;
when the main control module detects that the motor control module is locked and the rotation position of the air valve actuator is not in the opening position or the closing position, outputting a fault alarm feedback signal through the feedback signal output module;
when the main control module does not detect that the air valve actuator rotates to the position of opening or closing in place within the first preset time, a fault alarm feedback signal is output through the feedback signal output module.
The step (3) further comprises: the small opening angle of the air valve actuator set by the small opening angle setting module is compared with the actual rotating position of the air valve actuator detected by the position detection module through the main control module, and the method specifically comprises the following steps:
when the difference between the actual rotating position of the air valve actuator and the set small-opening angle is smaller than or equal to the design error range, the main control module controls the motor control module to stop rotating and controls the feedback signal output module to output a small-opening-angle in-place feedback signal;
when the main control module detects that the motor control module is locked and the rotation position of the air valve actuator does not reach the position of the small opening set angle, outputting a fault alarm feedback signal through the feedback signal output module;
when the main control module does not detect that the air valve actuator rotates to the position of the small opening set angle within the second preset time, a fault alarm feedback signal is output through the feedback signal output module.
Advantageous effects
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: the invention provides more accurate output feedback signals for opening and closing in place; the invention can accurately judge whether the motor of the air valve actuator is damaged or not and overtime operation, and output a fault feedback signal; the invention can accurately judge the jamming of the air valve actuator at the middle position and output a fault feedback signal; the invention effectively solves the problems that the feedback angle of the mechanical structure is not accurately adjusted and the angle is easy to deviate in the using process.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic wiring diagram of an air valve actuator according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the output wiring of the feedback signal output module according to an embodiment of the present invention;
FIG. 4 is a schematic external view of an air valve control actuator according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a single-chip microcomputer according to an embodiment of the present invention;
FIG. 6 is a sliding resistance circuit diagram of a small opening angle setting module according to an embodiment of the present invention;
FIG. 7 is a circuit diagram of a variable resistance unit of a position detection module of an embodiment of the present invention;
FIG. 8 is a circuit diagram of a switching signal detection module of an embodiment of the present invention;
fig. 9 is a circuit diagram of a feedback signal output module according to an embodiment of the invention.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The embodiment of the invention relates to an air valve control execution device, which comprises a main control module and a power supply module, wherein the main control module is respectively connected with a switching signal detection module, a position detection module, a motor control module and a feedback signal output module, the motor control module is connected with an air valve actuator, and the power supply module is used for supplying power to the main control module; the main control module is used for controlling the motor control module to drive the air valve actuator to rotate according to the switch direction signal input by the switch signal detection module, the position detection module is used for detecting the rotating position of the air valve actuator in real time, and the main control module is used for controlling the feedback signal output module to output a feedback signal for switching on or off in place or giving a fault alarm according to the rotating position of the air valve actuator detected by the position detection module in real time.
Further, the present embodiment further includes a small opening angle setting module connected to the main control module, where the small opening angle setting module is configured to set a small opening angle of the air valve actuator, and the main control module is configured to compare the small opening angle of the air valve actuator set by the small opening angle setting module with a rotation position of the air valve actuator actually detected by the position detection module, and control the feedback signal output module to output a feedback signal indicating that the small opening angle is in place or a fault alarm is issued according to a comparison result. The small opening angle setting module sets the small opening angle of the air valve actuator within a range of 10 degrees to 85 degrees, and fig. 6 shows the sliding resistance in the small opening angle setting module, and the small opening angle of the air valve actuator can be set by controlling the sliding resistance to slide at the voltage end.
Furthermore, a single chip microcomputer is arranged in the main control module, and the model of the single chip microcomputer is STC8G1K 08.
Further, the position detection module includes a variable resistance unit, and the position detection module detects the rotation position of the damper actuator in real time through the variable resistance unit, as shown in fig. 7, the variable resistance unit represents different rotation positions of the damper actuator by moving at a voltage end to realize different resistance values.
Further, the feedback signal output module comprises a relay, and the feedback signal output module outputs a feedback signal for turning on, turning off or giving a fault alarm through the relay, which is shown in detail in fig. 9.
Further, the power supply module adopts 220V alternating current for power supply.
Embodiments of the present invention relate to a control method for an air valve control actuator, which is described in detail below:
the power supply module adopts 220V alternating current power supply, and after the system circular telegram back, switching signal detection module detects the angle size that the blast gate executor needs to operate, needs to open, close still middle angle (see fig. 8), reads behind the switching angle direction signal, and master control module control motor control module realizes that the motor rotates according to the direction that needs.
The air valve actuator is electrified to operate in a full-opening and full-closing mode
(1) When the air valve actuator detects that the motor control module (motor) is locked in rotation in the operation process, the main control module controls the feedback signal output module to output an in-place opening feedback signal when the rotation position of the air valve actuator is judged to be in the in-place opening position.
(2) When the motor control module (motor) is locked and the position of the air valve actuator is in the closed position, the main control module controls the feedback signal output module to output a closed position feedback signal.
(3) If the motor control module (motor) is locked, but the position of the air valve actuator is not in the interval of being opened to the position or being closed to the position, the air valve actuator is blocked at the middle position, and the main control module outputs a fault alarm feedback signal through the feedback signal output module.
(4) Every time when a motor control module (motor) runs, timing is started, if the set angle (full on or full off) is not reached within the first preset time, the air valve actuator is indicated to be slipped or damaged, and the main control module outputs a fault alarm feedback signal through the feedback signal output module.
(II) the wind valve actuator is electrified to operate in a small-opening control mode
The wind valve actuator's that SETs for the wind valve actuator of little open Angle setting module is compared with the actual rotational position of the wind valve actuator's of position detection module's detection through host system, as shown in fig. 5, fig. 6 and fig. 7, slide resistance's Angle SET output pin links to each other with No. 2 pin of singlechip in the little open Angle setting module, variable resistance unit's Angle MOT output pin links to each other with No. 1 pin of singlechip in the position detection module, host system will receive the signal of these two pins and compare, specifically do:
(1) when the difference between the actual rotating position of the air valve actuator and the set small-opening angle is smaller than or equal to the design error range, the main control module controls the motor control module to stop rotating and controls the feedback signal output module to output a small-opening-angle in-place feedback signal.
(2) If the rotation position of the air valve actuator does not reach the position of the small-opening set angle and the motor control module (motor) is locked, indicating the mechanism fault, the main control module outputs a fault alarm feedback signal through the feedback signal output module.
(3) If the fact that the air valve actuator rotates to the position of the small-opening set angle is not detected after the second preset time, mechanism faults are explained, and the main control module outputs fault alarm feedback signals through the feedback signal output module.
The invention is further illustrated by the following specific embodiments:
as shown in fig. 2, 3 and 4, when the two lines of the No. 1 line and the No. 2 line of the air valve actuator in fig. 2 are connected with an alternating current 220V power supply, the air valve actuator rotates anticlockwise, when the air valve actuator rotates to the 0 ° position in fig. 4, 01 and 02 of the output wiring diagram of the feedback signal output module in fig. 3 are connected, and an on-position feedback signal of the air valve actuator is output.
When the two wires of the No. 1 wire and the No. 3 wire in the air valve actuator in the figure 2 are connected with an alternating current 220V power supply, the air valve actuator rotates clockwise, when the air valve actuator rotates to the 90-degree position in the figure 4, the 01 and 03 output wiring diagrams of the feedback signal output module in the figure 3 are connected, and the closed-position feedback signal of the air valve actuator is output.
When the two lines of the No. 1 line and the No. 4 line in the air valve actuator in the figure 2 are connected with a 220V power supply, the air valve actuator works in a small opening degree mode. In the mode, the air valve actuator is controlled according to a set small-opening-angle point location device signal, when the small opening angle to be set is reached, the motor stops running, at the moment, 01 and 04 of an output wiring diagram of the feedback signal output module in the figure 3 are switched on, and a small-opening-angle in-place feedback signal is output. The maximum angle range in which the small opening angle of the present embodiment can be set is 10 ° to 85 °, and any angle in the maximum range can be set at any time and adjusted at any time, and the mechanism is executed at the latest set angle in response at any time. And the system has overtime and overload protection, when a fault occurs, the 01 and 05 fault alarm feedbacks of the output wiring diagram of the feedback signal output module in the figure 3 are switched on, and the fault feedbacks can be released only by re-starting the small-open function after the fault is eliminated after the power failure. When the small opening is in place, if the air valve actuator rotates beyond a set error range due to external force, the mechanism can execute control logic again according to a set angle, and the mechanism stops rotating after reaching the set angle.
When the air valve actuator is in the process of clockwise or anticlockwise rotation and the motor is locked, but the position is not in the 0-degree or 90-degree position, the middle of the valve of the air valve actuator is blocked due to a fault, and at the moment, 01 and 05 of an output wiring diagram of the feedback signal output module in the figure 3 are connected, and a fault alarm feedback signal is output.
When the air valve actuator is electrified to start to perform actions (start to rotate clockwise or anticlockwise), the main control module starts to time, if the air valve actuator does not reach 0 degrees or 90 degrees or a set angle within the design standard time, a fault is determined to occur, and at the moment, 01 and 05 of an output wiring diagram of the feedback signal output module in the figure 3 are connected, and a fault alarm feedback signal is output.
It can be seen that the present invention provides more accurate output feedback signals that are turned on and off in place; the invention can accurately judge whether the motor of the air valve actuator is damaged or not and overtime operation, and output a fault feedback signal; the invention can accurately judge the jamming of the air valve actuator at the middle position and output a fault feedback signal.
Claims (10)
1. The air valve control execution device is characterized by comprising a main control module and a power supply module, wherein the main control module is respectively connected with a switching signal detection module, a position detection module, a motor control module and a feedback signal output module; the main control module is used for controlling the motor control module to drive the air valve actuator to rotate according to the switch direction signal input by the switch signal detection module, the position detection module is used for detecting the rotating position of the air valve actuator in real time, and the main control module is used for controlling the feedback signal output module to output a feedback signal for switching on or off in place or giving a fault alarm according to the rotating position of the air valve actuator detected by the position detection module in real time.
2. The air valve control execution device of claim 1, further comprising a small opening angle setting module connected to the main control module, wherein the small opening angle setting module is configured to set a small opening angle of the air valve actuator, and the main control module is configured to compare the small opening angle of the air valve actuator set by the small opening angle setting module with an actually detected rotation position of the air valve actuator by the position detection module, and control the feedback signal output module to output a feedback signal indicating that the small opening angle is in place or a fault alarm is given according to a comparison result.
3. The air valve control actuator device according to claim 2, wherein the small opening angle setting module sets the small opening angle of the air valve actuator in a range of 10 ° to 85 °.
4. The air valve control execution device of claim 1, wherein the position detection module comprises a variable resistance unit, and the position detection module detects the rotation position of the air valve actuator in real time through the variable resistance unit.
5. The blast gate control actuator of claim 1, wherein the feedback signal output module comprises a relay, and the feedback signal output module outputs a feedback signal for opening, closing or fault alarm through the relay.
6. The air valve control execution device of claim 1, wherein a single chip microcomputer is arranged in the main control module, and the single chip microcomputer is STC8G1K 08.
7. The blast gate control actuator of claim 1, wherein the power supply module is powered by 220V AC.
8. A control method of an air valve control execution device is characterized by comprising the following steps:
step (1): the main control module controls a motor control module to drive an air valve actuator to rotate according to the switch direction signal detected by the switch signal detection module;
step (2): the rotation position of the air valve actuator detected in real time is transmitted to the main control module through the position detection module; and (3): and according to the received rotation position of the air valve actuator, the main control module controls the feedback signal output module to output a feedback signal for opening in place, closing in place or giving a fault alarm.
9. The blast gate control execution device control method according to claim 7, wherein the step (3) is specifically:
when the main control module detects that the motor control module is locked and the rotation position of the air valve actuator is in the in-place opening position, outputting an in-place opening feedback signal through the feedback signal output module;
when the main control module detects that the motor control module is locked and the rotation position of the air valve actuator is in the closed position, a closed position feedback signal is output through the feedback signal output module;
when the main control module detects that the motor control module is locked and the rotation position of the air valve actuator is not in the opening position or the closing position, outputting a fault alarm feedback signal through the feedback signal output module;
when the main control module does not detect that the air valve actuator rotates to the position of opening or closing in place within the first preset time, a fault alarm feedback signal is output through the feedback signal output module.
10. The blast gate control actuator control method according to claim 7, wherein said step (3) further comprises: the small opening angle of the air valve actuator set by the small opening angle setting module is compared with the actual rotating position of the air valve actuator detected by the position detection module through the main control module, and the method specifically comprises the following steps:
when the difference between the actual rotating position of the air valve actuator and the set small-opening angle is smaller than or equal to the design error range, the main control module controls the motor control module to stop rotating and controls the feedback signal output module to output a small-opening-angle in-place feedback signal;
when the main control module detects that the motor control module is locked and the rotation position of the air valve actuator does not reach the position of the small opening set angle, outputting a fault alarm feedback signal through the feedback signal output module;
when the main control module does not detect that the air valve actuator rotates to the position of the small opening set angle within the second preset time, a fault alarm feedback signal is output through the feedback signal output module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110532575.8A CN113138578A (en) | 2021-05-17 | 2021-05-17 | Air valve control execution device and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110532575.8A CN113138578A (en) | 2021-05-17 | 2021-05-17 | Air valve control execution device and control method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114543341A (en) * | 2022-01-24 | 2022-05-27 | 青岛海尔空调器有限总公司 | Method and device for controlling air deflector, air conditioner and storage medium |
| CN114624018A (en) * | 2022-02-16 | 2022-06-14 | 苏州东剑智能科技有限公司 | Small-angle self-checking method and locked-rotor retry method for valve |
| CN114811687A (en) * | 2022-04-15 | 2022-07-29 | 杭州老板电器股份有限公司 | Air valve angle self-adaptive adjusting method and device, air valve and storage medium |
-
2021
- 2021-05-17 CN CN202110532575.8A patent/CN113138578A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114543341A (en) * | 2022-01-24 | 2022-05-27 | 青岛海尔空调器有限总公司 | Method and device for controlling air deflector, air conditioner and storage medium |
| CN114543341B (en) * | 2022-01-24 | 2023-10-20 | 青岛海尔空调器有限总公司 | Method and device for controlling air deflector, air conditioner and storage medium |
| CN114624018A (en) * | 2022-02-16 | 2022-06-14 | 苏州东剑智能科技有限公司 | Small-angle self-checking method and locked-rotor retry method for valve |
| CN114811687A (en) * | 2022-04-15 | 2022-07-29 | 杭州老板电器股份有限公司 | Air valve angle self-adaptive adjusting method and device, air valve and storage medium |
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