Automatic control system database expansion method based on control principle loop diagram

Abstract

The invention relates to a method for expanding an automatic control system database based on a control principle loop diagram. The method comprises the following steps of: constructing an automatic control system database platform; counting all IO points of the automatic control system, and inputting the IO points into a database of an automatic control system database platform; drawing measurement and control principle loop diagrams of all IO points; defining attributes of the instrument control equipment, and collecting related data of the instrument control equipment; integrating the measurement and control principle loop diagrams with the attributes of the instrument control equipment, and inputting into a database; and generating an independent two-dimensional code, and scanning by a mobile phone. According to the invention, an automatic control system database expanded based on a measurement and control principle loop diagram exists in a form of scanning a two-dimensional code through a WeChat applet, is an online database, and integrates an IO table, a control principle diagram and related information of instrument control equipment which are originally dispersed and are not communicated with each other, so that the system has intercommunity, and the system is convenient to use. Instrument control personnel can know the whole control loop conveniently, the fault processing thought is guided, and the method is a simple and efficient online auxiliary method.

Description

Technical Field

[0001] This patent application belongs to the field of automatic control maintenance technology, and more specifically, it relates to an expansion method of an automatic control system database based on a control principle loop diagram. Background Art

[0002] At present, the maintenance of automatic control system is quite difficult. There are many monitoring points in the automatic control system, and there are many types of instrumentation and control equipment. In addition, IO tables, control schematics, and equipment-related data are all independent and scattered. It is impossible for automatic control maintenance workers to be familiar with the automatic control system and on-site instrumentation and control equipment of each project, which makes it very difficult to find and solve instrumentation and control faults.

[0003] Therefore, there is a need for an automatic control system database with online query function, integrating IO tables, measurement / control principle circuit diagrams and instrumentation and control equipment related information, which can help automatic control maintenance workers quickly find and solve faults and improve work efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an expansion method of an automatic control system database based on a control principle loop diagram, which can enable instrumentation and control personnel to understand the entire control loop and guide their troubleshooting ideas; and can conveniently query the relevant information of each instrumentation and control device in the entire control loop, with the characteristics of simplicity and high efficiency.

[0005] In order to solve the above problems, the technical solution adopted by the present invention is: A method for expanding an automatic control system database based on a control principle loop diagram comprises the following steps: S1. Build an automatic control system database platform with the function of uploading and modifying data; S2. Count all IO points of the automatic control system and input them into the database of the automatic control system database platform; S3. Draw the measurement and control principle loop diagram of all IO points, where the control principle loop diagram reflects the terminal wiring of all IO points from the control system to the field equipment and the instrumentation and control equipment involved in the control principle loop; S4. Define the attributes of instrumentation and control equipment and collect relevant information of instrumentation and control equipment; S5. Integrate the measurement and control principle circuit diagram with the instrumentation and control equipment attributes and enter them into the database; S6. The data of each instrument and control equipment is stored in the automatic control system database platform and has an independent website. The website generates an independent QR code. Mobile phones can scan the independent QR code to locate and browse its content in the automatic control system database platform.

[0006] Furthermore, in S1, the automatic control system database platform is an APP, and by inputting the name / number of the measurement point to be found in the search bar of the APP, a certain position of a process flow chart where the measurement point is located can be quickly located.

[0007] Furthermore, in S2, all IO points of the automatic control system are counted by position.

[0008] Furthermore, in S4, the relevant information includes name, model specification, manufacturer, terminal wiring diagram, commissioning instructions, and previous maintenance records.

[0009] Furthermore, in S5, the measurement and control principle loop diagram and the instrumentation and control equipment attributes are integrated in the form of text or hyperlinks.

[0010] Due to the adoption of the above technical solution, the beneficial effects achieved by the present invention are: The present invention integrates the previously scattered and unconnected IO tables, control schematics, and instrumentation and control equipment related data together to make them interoperable, so that the instrumentation and control personnel can understand the entire control loop and guide their troubleshooting ideas; at the same time, it has an online query function, which can conveniently query the relevant data of each instrumentation and control device in the entire control loop. It has the characteristics of simplicity and high efficiency, good on-site application effect, and extremely high promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The process flow chart of the job operation screen is used as the background, and all IO points are defined at the corresponding positions of the process flow chart.

[0012] Figure 2 It is a measurement principle circuit diagram taking a certain IO point (static blade opening control, static blade opening) of the position as an example, as well as a data display diagram of a certain measurement point in the database that integrates equipment-related data. DETAILED DESCRIPTION

[0013] The present invention is further described in detail below with reference to the embodiments.

[0014] A method for expanding an automatic control system database based on a control principle loop diagram comprises the following steps: S1. Build an automatic control system database platform with the function of uploading and modifying data.

[0015] like Figure 1 The process flow chart of the post operation screen is used as the background, and all IO points are defined in the corresponding positions of the process flow chart. The automatic control system database exists in the form of an APP. Enter the name / number of the measurement point to be found in the APP search bar to quickly locate its location in a certain process flow chart. For example, searching for the measurement point of the stator opening control can quickly locate its location. Figure 1Click on the circled position to enter the data of this measurement point in the database.

[0016] Figure 1 The contents displayed are fan supply air pressure, fan supply air flow, control mode (air volume control), fan static blade control, fan supply air flow, fan supply air flow differential pressure, fan supply air temperature, fan inlet pressure, fan throat differential pressure, fan inlet temperature, fan inlet air flow, fan exhaust pressure, fan exhaust temperature, anti-surge self-adjusting output, anti-surge manual operation, etc.

[0017] S2. Count all IO points of the automatic control system and input them into the database of the automatic control system database platform. This step needs to be counted in a certain order, such as by position or by department, so as to ensure rationality and order, and there will be no omissions.

[0018] S3. Draw the measurement and control principle loop diagram of all IO points, where the control principle loop diagram reflects the terminal wiring of all IO points from the control system to the field equipment and the instrumentation and control equipment involved in the control principle loop; S4. Define the attributes of instrumentation and control equipment, which include equipment position number, model, alarm value, process description and spare parts status, and collect relevant information of instrumentation and control equipment, including name, model specification, manufacturer, terminal wiring diagram, commissioning manual, previous maintenance records, etc., and can also have personalized content.

[0019] S5. Integrate the measurement and control principle loop diagram with the instrumentation and control equipment attributes and enter them into the database. The integration can be performed in the form of text or hyperlinks. Through text or hyperlinks, the measurement and control principle loop diagram can be quickly jumped to the instrumentation and control equipment attributes.

[0020] S6. The data of each instrument and control equipment is stored in the automatic control system database platform and has an independent website. The website generates an independent QR code. Mobile phones can scan the independent QR code to locate and browse its content in the automatic control system database platform.

[0021] Attached Figure 2 It is a measurement principle circuit diagram of an AO point (stator blade opening control) at a post as an example, and a display of data of a certain measurement point in the database fused with equipment-related data. For the stator blade control circuit, it includes 1 AI, 1 AO, and involves 6 equipment objects.

[0022] The data includes the terminal wiring from the template to the field equipment of the stator opening control measurement point and the instrumentation and control equipment involved in the control principle loop. It is an integration of the terminal wiring diagram and the control principle between each instrumentation and control equipment. Figure 2The rectangular box in the middle contains the relevant information of the instrumentation and control equipment involved, including name, model specification, manufacturer, terminal wiring diagram, commissioning manual, and previous maintenance records, which are presented in the form of text or hyperlinks. Such an automatic control system database based on the measurement and control principle circuit diagram integrates the previously scattered and unconnected IO tables, control principle diagrams, and instrumentation and control equipment related information together to make them interoperable.

[0023] For example, the rectangular box in the upper left corner shows: Name: Analog input template; Model specification: AAI143-S; Template location: 1st rack, 2nd rack, 14th channel; Wiring diagram, instruction manual, maintenance log, and related information are all missing.

[0024] The rectangular box in the lower left corner shows: Name: Analog output template; Model specification: AAI143-S; Template location: The first channel of the first template of the first rack; There are no wiring diagrams, instructions, maintenance logs, or related information.

[0025] The rectangular box in the upper middle shows: Name: One-input and two-output distributor; Model specification: ICC312; Manufacturer: MTL; No spare parts, wiring diagram, maintenance log or related information.

[0026] The rectangular box in the lower center shows: Name: Manual operation of static blade; Model specification: YS136-002 220VAC with 250 ohm resistor; Manufacturer: Yokogawa-Nishi; No spare parts, wiring diagram, maintenance log; Related information shows operating instructions and common fault diagnosis.

[0027] The rectangular box in the upper right corner shows: Name: Position feedback device; Position number: ZT305; Model specification: 4211; Manufacturer: fisher; No spare parts, wiring diagram, maintenance log; Related information shows the debugging method.

[0028] The rectangular box in the lower right corner shows: Name: Electro-hydraulic servo valve; No information on location, model, specification, manufacturer, spare parts, wiring diagram, maintenance log; related information on debugging methods.

[0029] From the above, it can be seen that the automatic control system database expanded on the basis of the measurement and control principle loop diagram of the present invention exists in the form of scanning a QR code through the WeChat applet. It is an online database, and integrates the originally scattered and unconnected IO tables, control principle diagrams, and instrumentation and control equipment related information together to make them interoperable, making it convenient for instrumentation and control personnel to understand the entire control loop and guide their fault handling ideas. It is a simple and efficient online auxiliary method with extremely high promotion and application value.

Claims

1. A method for expanding an automatic control system database based on a control principle circuit diagram, characterized in that The steps include: S1. Build an automatic control system database platform with the function of uploading and modifying data; S2. Count all IO points of the automatic control system and input them into the database of the automatic control system database platform; S3. Draw the measurement and control principle loop diagram of all IO points, where the control principle loop diagram reflects the terminal wiring of all IO points from the control system to the field equipment and the instrumentation and control equipment involved in the control principle loop; S4. Define the attributes of instrumentation and control equipment and collect relevant information of instrumentation and control equipment; S5. Integrate the measurement and control principle circuit diagram with the instrumentation and control equipment attributes and enter them into the database; S6. The data of each instrument and control equipment is stored in the automatic control system database platform and has an independent website. The website generates an independent QR code. Mobile phones can scan the independent QR code to locate and browse its content in the automatic control system database platform.

2. The method for expanding the automatic control system database based on the control principle loop diagram according to claim 1, characterized in that: In S1, the automatic control system database platform is an APP. By entering the name / number of the measurement point to be found in the search bar of the APP, the position of the measurement point in the process flow chart can be quickly located.

3. The method for expanding the automatic control system database based on the control principle circuit diagram according to claim 2, characterized in that: In S2, all IO points of the automatic control system are counted by position.

4. The method for expanding the automatic control system database based on the control principle circuit diagram according to claim 2, characterized in that: In S4, the relevant information includes name, model specification, manufacturer, terminal wiring diagram, commissioning instructions, and previous maintenance records.

5. The method for expanding the automatic control system database based on the control principle circuit diagram according to claim 1, characterized in that: In S5, the measurement and control principle loop diagrams and instrumentation and control equipment attributes are integrated in the form of text or hyperlinks.

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