CN112579070A - Graphical programming method - Google Patents
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- CN112579070A CN112579070A CN202011506671.7A CN202011506671A CN112579070A CN 112579070 A CN112579070 A CN 112579070A CN 202011506671 A CN202011506671 A CN 202011506671A CN 112579070 A CN112579070 A CN 112579070A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000006870 function Effects 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 230000009466 transformation Effects 0.000 claims abstract description 6
- 238000004364 calculation method Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 4
- 238000013480 data collection Methods 0.000 claims 1
- 238000004422 calculation algorithm Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- 238000009423 ventilation Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/30—Creation or generation of source code
- G06F8/34—Graphical or visual programming
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/30—Creation or generation of source code
- G06F8/31—Programming languages or programming paradigms
- G06F8/315—Object-oriented languages
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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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- 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 provides a graphical programming method, which comprises a control end and an embedded system; the control end comprises a data acquisition module, a logic control module, a numerical value conversion module, a mathematical operation module and a storage and recording module; the data acquisition module, the logic control module, the numerical value transformation module, the mathematical operation module and the storage recording module are provided with corresponding identification numbers; the embedded system comprises an operation code, the operation code is compiled and stored in the embedded system in a library function form, and the identification number is matched with the operation code in a one-to-one correspondence manner; each module is allocated with an identification number, the operation codes of the modules are compiled and stored in the embedded system in a library function form, the library functions provide a uniform interface, and the scheduling algorithm calls the operation modules according to the category identification numbers to obtain operation results.
Description
Technical Field
The invention relates to the field of heating ventilation air conditioners, in particular to a graphical programming method.
Background
Embedded systems typically include embedded hardware systems and embedded software systems, including general purpose embedded operating systems and applications based on embedded operating systems. At present, the embedded application programs are generally written by using a general programming language, such as C/C + +, JAVA, and the like, and then are programmed into the embedded system to run after being compiled. Or installing a script running platform in the embedded system, and generating a script by the upper computer according to the application requirement and downloading the script to the embedded system for running.
At present, embedded application requires a professional programmer to write a special application program according to the requirements of the embedded application. Common programmers do not know about industrial applications of the embedded system, and professional application engineers who know about industrial applications, such as heating and ventilation engineers, do not know about programming languages and embedded system development. The embedded system generally has limited resources, and the script program runs in the embedded system with low efficiency. Therefore, it is necessary to develop a graphic programming method.
Disclosure of Invention
The invention aims to solve the problems and provides a graphical programming method, wherein each module is allocated with an identification number, the operation codes of the modules are compiled and stored in an embedded system in a library function form, the library function provides a uniform interface, and a scheduling algorithm calls an operation module according to the category identification number to obtain an operation result.
In order to achieve the purpose, the invention adopts the following technical scheme.
A graphical programming method comprises a control end and an embedded system; the control end comprises a data acquisition module, a logic control module, a numerical value conversion module, a mathematical operation module and a storage and recording module; the data acquisition module, the logic control module, the numerical value transformation module, the mathematical operation module and the storage recording module are provided with corresponding identification numbers; the embedded system comprises an operation code, the operation code is compiled and stored in the embedded system in a library function form, and the identification number is matched with the operation code in a one-to-one correspondence manner.
Further, the data acquisition module comprises a general input and output module, a network input and output module and a system internal parameter input and output module.
Further, the logic control module comprises a basic logic operation module, a time control module and a switching module.
Further, the numerical conversion module comprises a PID controller, linear conversion, enthalpy calculation, wet bulb temperature calculation, dew point temperature calculation, comparison and judgment, slow rising and slow falling and a threshold value.
Further, the mathematical operation module comprises four arithmetic operations, modulus, absolute value, rounding, average value, trigonometric function, logarithm, power and integral.
Further, the memory logging module includes run time, history, and trend records.
Further, the control end adopts a linux operating system and an RTOS real-time operating system.
Furthermore, the operation codes adopt HTML, CSS and JAVASCRIPT program languages.
Further, the control end adopts a serial communication bus or a network protocol mode for transmission.
The positive effects of the graphical programming method of the invention are as follows:
(1) the invention simplifies the development process of the embedded application program, avoids using script program language in the embedded system with limited resources and improves the running efficiency of the application program of the embedded system. A method for granular algorithm logic and a scheduling method for granular algorithm are provided.
(2) The invention adopts a graphical tool and designs program operation logic in a drag-and-drop mode. And generating a tree data structure according to the combination relation of the graphs, and indicating the operation priority and the operation relation among the modules. The programming is converted into design module relationships. The application engineer avoids writing program code and only needs relational application logic. The generated data structure is transmitted to the controller through a network protocol.
(3) According to the forest data structure and the priority in the data structure, the controller traverses each module in a message queue mode and calls a library function algorithm to achieve the effect of running a program.
Drawings
Fig. 1 is a schematic diagram provided by an embodiment of the present invention.
The reference numerals in the figures are respectively:
1. a control end; 2. an embedded system; 3. a data acquisition module; 4. a logic control module; 5. a numerical value transformation module; 6. a mathematical operation module; 7. a storage recording module; 8. identifying the number; 9. and (5) operating codes.
Detailed Description
The following provides a detailed embodiment of a graphical programming method according to the present invention with reference to the accompanying drawings, but it should be noted that: the described embodiments are not intended to limit the practice of the invention. All similar structures and similar variations thereof adopting the invention shall fall within the scope of the invention. The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the embodiments, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
See fig. 1. A graphical programming method comprises a control terminal 1 and an embedded system 2; the control end 1 comprises a data acquisition module 3, a logic control module 4, a numerical value conversion module 5, a mathematical operation module 6 and a storage recording module 7; the data acquisition module 3, the logic control module 4, the numerical value conversion module 5, the mathematical operation module 6 and the storage recording module 7 are provided with corresponding identification numbers 8; the embedded system 2 comprises an operation code 9, the operation code 9 is compiled and stored in the embedded system 2 in a library function form, and the identification number 8 is matched with the operation code 9 in a one-to-one correspondence manner.
The data acquisition module 3 comprises general input and output, network input and output and system internal parameter input and output. The logic control module 4 comprises a basic logic operation module, a time control module and a switching module. The numerical value conversion module 5 comprises a PID controller, linear conversion, enthalpy calculation, wet bulb temperature calculation, dew point temperature calculation, comparison and judgment, slow rising and slow falling and a threshold value. The mathematical operation module 6 comprises four arithmetic operations, modulus, absolute value, rounding, average value, trigonometric function, logarithm, power and integral. The memory logging module 7 includes run time, history and trend records. The control terminal 1 adopts a linux operating system and an RTOS real-time operating system. The operation code 9 adopts HTML, CSS and JAVASCRIPP program languages. The control end 1 adopts a serial communication bus or a network protocol mode for transmission.
The module algorithm is realized as follows: and (3) writing an external interface function by each module by adopting a C/C + + programming language. And finally programming the executable program library. And compiling the program library by adopting different compiling environments according to different operating systems. And a linux operating system and an RTOS real-time operating system are supported. Graphical programming: js and electron open source platforms are based on the program. And generating a graphical push-pull test programming interface by adopting HTML, CSS and JAVASCRIPT programming languages and a web front-end programming technology. Data structure: and storing the generated directed graph by adopting an array linked list. Each node of the graph identifies a logical module; the node attribute stores parameters required by the data module for calculation; the input edge is a node input parameter, and the output edge is an output parameter of the node. When generating the directed graph, the scheduling priority needs to be identified, and the priority is as follows: when the node without the edge has priority, the output node of the edge has priority over the input node, and the graph exists in a ring, the ring is removed first when the priority is determined. Configuration program transmission and storage: the configuration program is transmitted by adopting a serial communication bus or a network protocol mode. And storing the data into the non-volatile flash memory of the embedded system 2. And (3) program operation: and when the system runs, a module algorithm is circularly called according to the configured data structure, and a final value is output in real time, so that the running effect is achieved.
The scheme is modeled and standardizes a general calculation algorithm. In applications where programming is required, programming code is avoided. Only according to the application requirements, the data is graphically combined, and the program application is automatically generated. Writing a computer program is converted into a combination of limited data. The invention reduces the threshold of computer program design. In the field of heating, ventilating and air conditioning control or process control, an application engineer can simply and quickly generate a logic control program. Even the method is popularized to the fields of Internet of things and edge computing, and more common application engineers can realize development and application of the control program without professional programming language training.
Claims (9)
1. A graphical programming method is characterized by comprising a control end and an embedded system; the control end comprises a data acquisition module, a logic control module, a numerical value conversion module, a mathematical operation module and a storage and recording module; the data acquisition module, the logic control module, the numerical value transformation module, the mathematical operation module and the storage recording module are provided with corresponding identification numbers; the embedded system comprises an operation code, the operation code is compiled and stored in the embedded system in a library function form, and the identification number is matched with the operation code in a one-to-one correspondence manner.
2. The graphical programming method according to claim 1, wherein the data collection module comprises a general purpose input output, a network input output, and an in-system parameter input output.
3. The graphical programming method according to claim 1, wherein the logic control module comprises a basic logic operation, a time control module and a switching module.
4. The graphical programming method according to claim 1, wherein the numerical transformation module comprises a PID controller, a linear transformation, an enthalpy calculation, a wet bulb temperature calculation, a dew point temperature calculation, a comparison determination, a gradual rise and fall, and a threshold.
5. The graphical programming method according to claim 1, wherein the mathematical operation module comprises a four-way operation, a modulo, an absolute, a rounded, an average, a trigonometric function, a logarithm, a power, and an integral.
6. The graphical programming method of claim 1, wherein the memory logging module comprises run time, history and trend records.
7. The graphical programming method according to claim 1, wherein the control terminal employs a linux operating system and an RTOS real-time operating system.
8. The graphical programming method according to claim 1, wherein the operation code adopts HTML, CSS and javascript program languages.
9. The graphical programming method according to claim 1, wherein the control terminal transmits in a serial communication bus or a network protocol.
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| CN202011506671.7A CN112579070B (en) | 2020-12-18 | 2020-12-18 | Graphical programming method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6138271A (en) * | 1996-06-26 | 2000-10-24 | Rockwell Technologies, Llc | Operating system for embedded computers |
| CN102385509A (en) * | 2010-08-31 | 2012-03-21 | 苏州大学 | Graphical embedded type development method and platform |
| CN104932354A (en) * | 2015-05-28 | 2015-09-23 | 芜湖思沃电子科技有限公司 | Intelligent trolley graphical programming method based on ARM Cortex-M series single-chip microcomputer platform |
| CN105824285A (en) * | 2016-03-14 | 2016-08-03 | 上海交通大学 | Programmable-logic-control-system-based programming design method for single-chip microcomputer |
-
2020
- 2020-12-18 CN CN202011506671.7A patent/CN112579070B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6138271A (en) * | 1996-06-26 | 2000-10-24 | Rockwell Technologies, Llc | Operating system for embedded computers |
| CN102385509A (en) * | 2010-08-31 | 2012-03-21 | 苏州大学 | Graphical embedded type development method and platform |
| CN104932354A (en) * | 2015-05-28 | 2015-09-23 | 芜湖思沃电子科技有限公司 | Intelligent trolley graphical programming method based on ARM Cortex-M series single-chip microcomputer platform |
| CN105824285A (en) * | 2016-03-14 | 2016-08-03 | 上海交通大学 | Programmable-logic-control-system-based programming design method for single-chip microcomputer |
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