CN116068946A - Electric valve controller, visual programming system and visual programming method - Google Patents
Electric valve controller, visual programming system and visual programming method Download PDFInfo
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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
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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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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Abstract
The invention discloses an electric valve controller, a visual programming system and a visual programming method, wherein the method comprises the following steps that S1, a micro control unit generates a resource table according to hardware configuration of the valve controller; s2, performing visual programming by matching a Bluetooth module, a 4G/5G/WIFI network or a field bus with a touch display screen; s3, integrating the parameters generated by programming into a parameter model by the micro control unit, storing the parameter model into an internal Flash, and loading and running after restarting; and S4, a parameter model stored by the micro control unit is derived through the Bluetooth module, the 4G/5G/WIFI network or the field bus. The user only needs to drag and drop the graphic elements on the panel of the working area to carry out connection input and output, and parameter setting is carried out on the components represented by the graphic elements according to actual requirements, so that programming can be completed.
Description
Technical Field
The invention relates to the field of automatic control, in particular to an electric valve controller, a visual programming system and a visual programming method.
Background
The intelligent valve controller is widely applied to the industries of water supply and drainage, heat supply, power stations, substitution, food, textile, papermaking, ships, steel, coal and the like which use pipeline valves.
Most of the general electric valve controllers have fixed external interfaces, special requirements need to be customized by a manufacturer, and the delivery period is long and the cost is high; when the local or remote parameter setting and control are performed, the local or remote parameter setting and control mainly depends on a field bus or 4-20mA analog signals and other switch signals of an access master control system; the system is suitable for independent valve control, each controller needs independent control signals, cannot be controlled in a cascading and linkage manner, and needs to be connected into a specific control system through a signal line or a field bus under the condition that the functions of centralized control, multiple linkage, edge calculation and the like are required to be realized; under different application scenes, for example, when sensor data such as temperature, pressure or flow are to be acquired, a PLC or special RTU device is needed to be additionally arranged, and a transmission channel cannot be shared with a valve, so that waste is caused.
Disclosure of Invention
In order to solve the technical problems, the invention provides an electric valve controller, which comprises a micro control unit, wherein a driving layer of the micro control unit is provided with a kernel program for loading and executing a parameter model generated by visual programming; the system power supply is used for supplying power to the whole system; a field bus driving circuit used as an input data source or an output memory variable; the signal matrix is used for collecting and outputting signals; the Bluetooth module is used for importing data and exporting data; the wireless network module is used for calibrating calendar time; and the valve driver is used for realizing valve control.
Preferably: the signal matrix comprises a switch signal input matrix and a plurality of paths of switch signals are collected; the switch signal output matrix outputs multipath switching values outwards; the analog signal input matrix is used for collecting multiple paths of analog voltage and current signals; the analog signal output matrix outputs multipath analog voltage and current signals to the outside.
Preferably: the torque acquisition circuit is used for acquiring a torque value acting on the valve; the valve position encoder is used for acquiring real-time valve position values; the touch display screen is used for displaying valve position values, parameter settings and visual programming inputs.
The visual programming system is suitable for the electric valve controller and comprises a data source, a data temporary storage and processing unit and a driving and output unit.
Preferably: the data temporary storage and processing unit comprises a trigger and an operation unit.
Preferably: the flip-flop includes a single-input flip-flop and a multiple-input flip-flop; the single-input trigger is used for setting trigger conditions, synthesizing the trigger conditions of all paths and outputting trigger signals; the multi-input trigger outputs a trigger signal after performing logic operation on each logic signal; the operation unit comprises a monocular operation and a binocular operation, and performs operation processing on an input signal.
Preferably: the drive and output unit includes a valve drive output, a switch signal output, and an analog signal output.
Preferably: the valve actuation output includes on, off and off.
The visual programming method is suitable for the electric valve controller and the visual programming system, and comprises the following specific steps:
s1, generating a resource table by a micro control unit according to hardware configuration of a valve controller;
s2, performing visual programming by matching a Bluetooth module, a 4G/5G/WIFI network or a field bus with a touch display screen;
s3, integrating the parameters generated by programming into a parameter model by the micro control unit, storing the parameter model into an internal Flash, and loading and running after restarting;
and S4, a parameter model stored by the micro control unit is derived through the Bluetooth module, the 4G/5G/WIFI network or the field bus.
Preferably: the resource table includes graphic elements in the data source and drive and output units.
The invention has the technical effects and advantages that:
1. allowing custom input and output signals, external sensors or drivers can be accessed without accessing other control systems or devices; the operation unit and the trigger are combined to realize edge calculation; the centralized control and the linkage of a plurality of valves can be realized without an external system or equipment, and the time is acquired through a global navigation satellite system or a mobile communication network, so that the problem of asynchronous time of the plurality of valve controllers is solved, and the accuracy and consistency of the control time are improved.
2. The visual programming operation is simple, only the graphical drag and drop, the connection line and the parameter configuration are needed, and the code writing is not needed; the arithmetic unit and the trigger design a common algorithm and mechanism, and can be applied to various scenes; meanwhile, the parameter model generated by programming can be used as a template to be exported and imported to other controllers, so that the parameter model can be applied in batches, and the parameter model is more convenient and faster.
Drawings
Fig. 1 is a schematic structural diagram of an electric valve controller according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a coordinated operation of a plurality of controllers according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a visual programming system provided in an embodiment of the present application;
FIG. 4 is a schematic flow chart of a visual programming method according to an embodiment of the present application;
FIG. 5 is a flow chart of timing control valve operation in a visual programming method provided in an embodiment of the present application;
FIG. 6 is a diagram illustrating an example trigger function in a visual programming system according to an embodiment of the present application;
fig. 7 is a functional example diagram of an arithmetic unit in a visual programming system according to an embodiment of the present application.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description. The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Referring to fig. 1, in this embodiment, an electric valve controller is provided, which includes a micro-control unit, wherein the micro-control unit is respectively connected with a system power supply, a field bus driving circuit, a bluetooth module, a signal matrix, a wireless network module, a valve driver, a torque acquisition circuit, a valve position encoder and a touch display screen.
The system power supply is used for supplying power to the whole system.
The field bus driving circuit provides an interactive function of external information, and is used as an input data source or an output memory variable, and is used as one of programming input modes when visual programming is performed.
The Bluetooth module is used for importing data and exporting data, and is used as one of programming input modes when visual programming is carried out.
The signal matrix and the micro-control unit realize information interaction and comprise a switch signal input matrix, a switch signal output matrix, an analog signal input matrix and an analog signal output matrix, wherein the switch signal input matrix acquires multiple paths of switch signals, the switch signal output matrix externally outputs multiple paths of switch values, the analog signal input matrix acquires multiple paths of analog voltage and current signals, and the analog signal output matrix externally outputs multiple paths of analog voltage and current signals.
The wireless network module obtains accurate time, sends time information to the micro control unit, calibrates calendar time in the micro control unit, and can enable time of each controller to be consistent when a plurality of controllers are combined, so that accuracy and consistency of control time are improved.
The valve driver realizes the control of the valve according to the control signal sent by the micro-control unit, and in the embodiment, the valve driver can control the valve to open, close and stop.
The torque acquisition circuit acquires a torque value applied to the valve and sends the data to the micro control unit.
The valve position encoder collects real-time valve position values and sends the data to the micro-control unit.
The touch display screen acquires and displays valve position values and other parameter settings stored in the micro-control unit, and simultaneously serves as a physical input end for visual programming.
All the functions of the input and output interfaces can be customized according to practical application, and the input signals can be subjected to arithmetic, fitting, comparison and other operation processing, so that the serial and parallel operation of a plurality of controllers is supported.
Referring to fig. 2, in the case of parallel and serial operation of multiple controllers, the output of one controller may be used as the input of another controller, in this embodiment, the output of the controller 1 is connected to the input terminals of the controller 2, the controller 3 and the controller 4, the output terminal of the controller 2 is connected to the input terminal of the controller 5, and the output terminal of the controller 5 is connected to the output terminal of the controller 6, which is in turn connected to the controller N.
The time of each controller is calibrated through the wireless network module, so that the calendar time consistency of each controller can be ensured, and the accuracy and consistency of the control time are improved.
Referring to fig. 3, in this embodiment, a visual programming system is provided, where all peripheral interfaces and internal data resources are mapped to memory addresses of a micro control unit in a unified manner, and are abstracted into a structure body and correspond to graphic elements one by one, the graphic elements can be organized, connected and configured according to actual requirements of users, and the graphic elements mainly have three categories, namely a data source, a data temporary storage and processing unit and a driving and output unit.
The data source comprises calendar time, and time information is output through a real-time clock in the micro control unit; the software timer outputs a timer millisecond value and is calibrated through the wireless network module; the valve position, output valve position value, obtain through the valve position encoder; the moment, output moment value, obtain through the moment acquisition circuit; an external switching signal outputting 1 and 0; an external analog signal, outputting an acquired analog value; memory variables, including fieldbus data.
The data temporary storage and processing unit comprises a single-input trigger, sets triggering conditions, synthesizes the triggering conditions of each path and outputs a book triggering signal; the multi-input trigger outputs a trigger signal after performing logic operation on each logic signal; and an operation unit for performing an operation on the signal.
The driving and outputting unit comprises a valve driving output, a switching signal output and an analog signal output, wherein the valve driving output comprises on, off and stop.
Referring to fig. 4, in this embodiment, a visual programming method is provided, which includes:
s1, generating a resource table by a micro control unit according to hardware configuration of a valve controller;
s2, performing visual programming by matching a Bluetooth module, a 4G/5G/WIFI network or a field bus with a touch display screen;
s3, integrating the parameters generated by programming into a parameter model by the micro control unit, storing the parameter model into an internal Flash, and loading and running after restarting;
and S4, a parameter model stored by the micro control unit is derived through the Bluetooth module, the 4G/5G/WIFI network or the field bus.
The resource table comprises a data source and graphic elements in a driving and outputting unit, a user only needs to drag and drop the graphic elements to a working area panel to carry out connection input and output, parameter setting is carried out on components represented by the graphic elements according to actual requirements, programming can be completed, the input way of programming is in three modes of Bluetooth, network and field bus, after programming is completed, the micro-control unit stores programming logic and parameter models, and batch operation can be realized by exporting and importing the programming logic and parameter models to other controllers through Bluetooth, network and field bus.
Referring to fig. 5, an embodiment of a visual programming method is provided, in which an output of a calendar time is connected to an input of a multi-input trigger, and simultaneously the input of the multi-input trigger is also connected to an output of a monocular operation unit, the input of the monocular operation unit is connected to an output of an external analog signal, and the output of the multi-input trigger is connected to an input of a valve drive, in this embodiment, a time range of 8:00-18:00 can be set, and when the analog signal X is converted to be greater than C through ax+b engineering in this time range, the valve is opened; the specific method for realizing the function is as follows:
s01, an algorithm formula is formulated for an operation unit: ax+B, defining a time range of 8:00-18:00, and outputting by the trigger in the time range;
s02, providing calendar time by an internal real-time clock of the micro control unit and outputting the calendar time to the multi-input trigger;
s03, inputting an external analog signal X to a monocular operation unit, performing logic operation by the monocular operation unit, and transmitting the operated signal to a multi-input trigger;
s04, after the multi-input trigger acquires signals, the trigger signals are output after the trigger conditions of all paths are synthesized.
The micro control unit realizes all peripheral drivers, parameters of all peripheral drivers can be set and reinitialized, and a timer is used for periodically or singly triggering and calling the peripheral drivers; support multiple signals to point to the same drive and output unit; meanwhile, the priority of the driving signals is supported to be set, and when signals conflict, the final output is judged according to the priority or determined according to the time sequence.
Referring to fig. 6, a single-input flip-flop is a switching value input, and a multi-input flip-flop is an analog value input.
The switching value input is respectively switched on and off by 1 and 0, and definable trigger conditions comprise edge trigger, rising trigger, falling edge trigger, pulse trigger and level trigger, wherein the pulse trigger comprises upper pulse trigger and lower pulse trigger, and the level trigger comprises high level trigger and low level trigger.
The analog quantity input is variable data, and comprises time output by calendar time, timer millisecond value output by a software timer, valve position value output by a valve position encoder, moment value output by a moment acquisition circuit and analog value output by an external analog signal; the customizable triggering rules comprise numerical comparison, multiple-input logic operation and hysteresis comparison; numerical comparisons include =, <, > or more, intra-interval, and extra-interval; the multiple-input logical operation includes AND, OR, NOT, XOR, and AND; the hysteresis comparison comprises A, H/L and B, H/L.
The single call signals include open valve, close valve, stop, ESD action, and commanded position.
The switching value output includes an output high level, an output low level, and an output pulse, which is divided into an upper pulse and a lower pulse.
Referring to fig. 7, the operation units are divided into a monocular operation and a binocular operation, both operations support cascading, the monocular operation performs numerical operation, discount fitting, quadratic curve fitting and absolute value operation, and the binocular operation performs ax+by or Ax-By, axy or Ax/y and bitwise operation, which includes and, or and exclusive or.
The trigger and the operation unit support a commonly used algorithm formula and trigger logic in a matched mode, and a user can customize the algorithm formula and the trigger logic according to an actual application scene; the external input and output are matrix switching modes, and a factory practical standard template can be manufactured, so that a user can customize parameters and functions through visual programming according to an actual application scene.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present invention without the inventive step, are intended to be within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (10)
1. The electric valve controller is characterized by comprising a micro control unit, wherein a driving layer of the micro control unit is provided with a kernel program for loading and executing a parameter model generated by visual programming;
the system power supply is used for supplying power to the whole system;
a field bus driving circuit used as an input data source or an output memory variable;
the signal matrix is used for collecting and outputting signals;
the Bluetooth module is used for importing data and exporting data;
the wireless network module is used for calibrating calendar time;
and the valve driver is used for realizing valve control.
2. The electrically operated valve controller of claim 1 wherein said signal matrix comprises a switching signal input matrix for collecting multiple switching signals;
the switch signal output matrix outputs multipath switching values outwards;
the analog signal input matrix is used for collecting multiple paths of analog voltage and current signals;
the analog signal output matrix outputs multipath analog voltage and current signals to the outside.
3. The electrically operated valve controller of claim 1 further comprising a torque acquisition circuit for acquiring a torque value applied to the valve;
the valve position encoder is used for acquiring real-time valve position values;
the touch display screen is used for displaying valve position values, parameter settings and visual programming inputs.
4. A visual programming system, which is suitable for an electrically operated valve controller as claimed in any one of claims 1 to 3, and comprises a data source, a data temporary storage and processing unit and a driving and output unit.
5. A visual programming system as in claim 4, wherein the data buffering and processing unit comprises a trigger and an arithmetic unit.
6. The visual programming system of claim 5, wherein the flip-flops comprise single-input flip-flops and multi-input flip-flops;
the single-input trigger is used for setting trigger conditions, synthesizing the trigger conditions of all paths and outputting trigger signals;
the multi-input trigger outputs a trigger signal after performing logic operation on each logic signal;
the operation unit comprises a monocular operation and a binocular operation, and performs operation processing on an input signal.
7. A visual programming system as in claim 4, wherein the drive and output unit comprises a valve drive output, a switch signal output and an analog signal output.
8. A visual programming system as in claim 7, wherein the valve actuation outputs comprise on, off and off.
9. A visual programming method, which is suitable for an electrically operated valve controller as claimed in any one of claims 1 to 3 and a visual programming system as claimed in any one of claims 4 to 8, and specifically comprises the following steps:
s1, generating a resource table by a micro control unit according to hardware configuration of a valve controller;
s2, performing visual programming by matching a Bluetooth module, a 4G/5G/WIFI network or a field bus with a touch display screen;
s3, integrating the parameters generated by programming into a parameter model by the micro control unit, storing the parameter model into an internal Flash, and loading and running after restarting;
and S4, a parameter model stored by the micro control unit is derived through the Bluetooth module, the 4G/5G/WIFI network or the field bus.
10. A method of visual programming as in claim 9, wherein the resource table comprises graphical elements in the data source and drive and output units.
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