CN117421448A - Object reference relation maintenance method based on mode management in automatic control system - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000012423 maintenance Methods 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 13
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 claims description 6
- VUFOSBDICLTFMS-UHFFFAOYSA-M ethyl-hexadecyl-dimethylazanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)CC VUFOSBDICLTFMS-UHFFFAOYSA-M 0.000 claims description 6
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- 238000007726 management method Methods 0.000 description 18
- 230000001960 triggered effect Effects 0.000 description 7
- 230000005856 abnormality Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
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Abstract
The invention discloses an object reference relation maintenance method based on mode management in an automatic control system, which comprises the following steps: creating, updating or deleting object information in a maintenance mode, wherein the creation of the object information comprises creating equipment, arranging a business flow, creating an alarm strategy, creating a configuration view, and maintaining and managing a reference relation and a signal version in the created object information; and switching the system mode, wherein when the maintenance mode is switched to the production mode, checking the data consistency. The method of the invention avoids the problem of data inconsistency caused by modifying the referenced object.
Description
Technical Field
The invention relates to the technical field of automatic control systems, in particular to an object reference relation maintenance method based on mode management in an automatic control system.
Background
In the field of automation systems, object reference relationship maintenance is a critical task, especially in complex systems, such as building automation systems, industrial automation systems, and internet of things (IoT) applications. Object reference relationship maintenance involves efficiently managing and maintaining associations and reference relationships between various objects in a system to ensure consistency, reliability, and integrity of data. This task is particularly complex in automatic control systems because they typically involve multiple sensors, actuators, controllers and data sources that must work together to achieve accurate control and monitoring, once the properties of the data source change, there is a risk of data inconsistency for all places where the data source is referenced.
The traditional method for maintaining the object reference relation generally depends on hard coding, and a series of problems exist in the method, namely the complexity is firstly a problem, and as the scale of a system is enlarged, the reference relation becomes more and more complex, and the complexity of coding is also higher and higher; secondly, the problem of expandability is solved, the coupling property of codes can be increased by depending on hard coding to process a large number of complex reference relations, and a large number of high-coupling codes are definitely unfavorable for the expandability of a system, so that the performance of the system can be reduced, and the robustness of the system can be influenced; then, the accuracy problem is that the accuracy requirement of the automatic control system on the data is very high, the system is only valuable in judging the data in real time and accurately, and hard coding maintenance of complex reference relations is easy to miss and difficult to diagnose and solve the problem rapidly.
Disclosure of Invention
In order to solve the problems, the invention provides an object reference relation maintenance method based on mode management in an automatic control system, which can automatically maintain version information of objects in the system and reference relations between the objects.
In order to achieve the above object, the present invention is realized by the following technical scheme:
the invention relates to an object reference relation maintenance method based on mode management in an automatic control system, which comprises the following steps:
creating, updating or deleting object information in a maintenance mode, wherein the object comprises a reference object and a referenced object, and the object information creation specifically comprises:
s1, creating equipment: defining different types of devices, creating corresponding components and signals on the devices, wherein the signals comprise physical signals and logical signals;
s2, arranging a business process: according to service requirements, creating different types of system rules, selecting specific nodes, configuring corresponding signals to complete specified service processes, and establishing reference relations among the system rules, the nodes and the signals; the system comprises a refrigeration system, a chilled water system, a cooling water system, a weather environment system and a waterway circulation system, wherein signals are cited objects, the system rules comprise active triggering, timing triggering or passive triggering rules, and nodes comprise indication nodes, data nodes and action nodes;
s3, creating an alarm strategy: configuring alarms of different levels for physical signals of different signal types, and establishing a referential relationship between an alarm strategy and the physical signals; wherein, the alarms of different levels comprise threshold alarms, fluctuation alarms and switching alarms, and the physical signals are referenced objects;
s4, creating a configuration view: configuring equipment and signals on canvas for display or operation, and establishing a reference relation between the configuration and the signals, wherein the signals are referenced objects;
s5, maintaining and managing the reference relation and the signal version;
and switching the system mode, wherein in the process of switching the maintenance mode to the production mode, checking the consistency of data, scanning the reference relation of all the reference objects and the version information of the referenced objects by the automatic control system, listing the inconsistent object information of all the version information, enabling the automatic control system to support clicking the inconsistent object information to modify, rescanning after confirming that no error exists, exiting the maintenance mode, and switching to the production mode. The invention further improves that: the physical signal created on the equipment in the S1 comprises custom signal attribute and signal association configuration information; the signal attribute comprises a signal name, a signal type, a signal display control type, a signal unit and a value range; the signal types comprise remote signaling signals, remote control signals, telemetry signals and remote regulation signals; the signal association configuration information comprises gateway type, network management group ID, point location, data type, precision multiplying power and complex operation; the data types include binary, boolean, unsigned, signed long ABCD, signed long CDAB, floating ABCD, floating CDAB, and double precision floating.
The invention further improves that: the logic signals created on the device in S1 may be configured in a customized manner, and specifically includes: signal name, data type, signal unit, data source type and data source, wherein the signal type and data type are consistent with the physical signal, the data type of the logical signal contains date type besides the data type of the physical signal, and the data source type comprises associated physical signal, associated system rule, parameter configuration and built-in method.
The invention further improves that: the equipment in the S1 comprises a cold water main machine, a plate heat exchanger, a water pump, an electric switch valve, an electric regulating valve, a bypass valve, a cold storage tank, a cooling tower, a water collector and a water separator.
The invention further improves that: in the step S5, the maintenance and management of the signal version is specifically: when the signal is instantiated, the automatic control system initializes the version information of the signal, and when the signal is changed, the automatic control system automatically updates the version information of the signal.
The invention further improves that: in the step S5, the maintenance and management of the reference relationship specifically includes: after the reference relation is established, the automatic control system records the reference and the referenced object information related to the reference relation and the version information of the referenced object when the reference relation is established, and when the reference relation is established, the version information of the referenced object recorded by the automatic control system is the latest version information of the referenced object.
The invention further improves that: the system mode switching further comprises switching from a production mode to a maintenance mode, switching from a production mode to an automatic control mode and switching from an automatic control mode to a production mode;
when the production mode is switched to the automatic control mode, checking the condition for starting the automatic control mode in the production mode, and switching to the automatic control mode if the condition for starting the automatic control mode is met;
the control is switched from the self-control mode to the production mode, the control is supported to wait or forcibly terminate, and the control is switched to the production mode after the control is ended or terminated.
The beneficial effects of the invention are as follows: the method of the invention can automatically maintain the version information of the object in the system and the reference relation between the objects. According to the invention, different system modes have corresponding operation authorities, data consistency is checked during mode switching, the integrity and consistency of data are ensured, the complexity and coupling degree of the coding of the automatic control system are reduced, and the expandability, the instantaneity and the accuracy of the automatic control system are improved.
Drawings
FIG. 1 is a flow chart of reference relationship maintenance in an embodiment of the invention;
fig. 2 is a schematic diagram of system mode switching in an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1, the method for maintaining object reference relationships based on mode management in an automatic control system according to this embodiment is specifically as follows:
the automatic control system is initialized to a maintenance mode, and in the maintenance mode, object information is created, updated or deleted, wherein the objects comprise referenced objects and referenced objects, and the specific operations comprise:
s1, equipment is created under different systems;
the automatic control system self-defines different types of devices, creates corresponding components and signals on the devices, for example, creates a cold water host device, can create components such as a compressor, a condenser, an evaporator and the like on the cold water host, creates corresponding signals on the cold water host itself and the components thereof, wherein the signals comprise physical signals and logical signals, and the creation signals comprise the following operations:
the system comprises a self-defined physical signal, an automatic control system, a network management System (SNMP), a network Management System (MS), a network management System (SNMP), a network management system (S7), a network management system (BACnet) and a network management System (SNMP), wherein the self-defined physical signal supports signals accessed into four protocols, the Modbus protocol, the S7 protocol, the BACnet protocol and the SNMP can self-define signal attributes and signal association configuration information, and the signal attributes comprise signal names, signal types, signal display control types, value units and value ranges. The signal types include a remote signaling signal (DI), a remote control signal (DO), a telemetry signal (AI) and a remote adjustment signal (A0). The signal association configuration information comprises gateway type, network management group ID, point location, data type, precision multiplying power and complex operation, wherein the gateway type is the same as the protocol type. The data types include binary, boolean, unsigned, signed long ABCD, signed long CDAB, floating ABCD, floating CDAB, and double precision floating. Multiple physical signals may be added according to the field device custom signal, configuring the relevant properties of the signal.
The definition of a logical signal includes signal name, data type, signal type, unit, data source type, and data source. The data type of the logic signal comprises a date type in addition to the data type of the physical signal, the data source type is mainly divided into four major categories of associated physical signals, associated system rules, parameter configuration and built-in methods, and the system can configure the logic signal in a self-defined mode for service flow.
After the device type is customized, a corresponding device model can be created according to the device type, which includes: the method comprises the steps of establishing equipment models of specified types, defining components and physical signals of corresponding equipment and physical signals of the components, and defining signal attributes such as signal types, signal units, value ranges and the like. Depending on the field situation, multiple physical signals may be added. For example, a device model of a cold water host is created, physical signals and components and physical signals of the components are defined in the device model, so that cold water host devices with the same physical signals can be created by using the device model, and after the device is created, the components and the physical signals can be added and deleted on the device again as required.
The system comprises a refrigerating system, a chilled water system, a cooling water system, a weather environment system and a waterway circulating system, wherein corresponding equipment can be created under the corresponding system, equipment types and corresponding equipment models can be selected, after the equipment types are selected, the automatic control system screens out the corresponding equipment models according to the selected equipment types, wherein the equipment models are equivalent to templates, when equipment is created, the equipment models of the corresponding types are required to be selected, and when the equipment is created, physical signals on the selected equipment models are instantiated, namely, after the equipment is created, the equipment has all the attributes of the equipment models, the adding and deleting operations and the configuration logic messages of the physical signals can be independently carried out on the equipment, namely, after the equipment is created, the equipment and the equipment models do not have association relations. Meanwhile, after the equipment is created, the logic signals built in the automatic control system are provided, and the data sources of the logic signals can be configured, added, modified or deleted according to actual conditions. When the signal is instantiated, the automatic control system initializes the version information of the signal, and when the signal is changed, the version information is changed.
S2, arranging a business process: according to the service requirement, creating different types of system rules, selecting specific nodes, configuring corresponding signals to complete specified service processes, and establishing the reference relationship among the system rules, the nodes and the signals.
The system rules include actively triggered, timed triggered, or passively triggered rules. Explicit polling periods are required when creating a timed triggered task, and explicit trigger conditions are required when creating a passive triggered task, which may be physical or logical signals. The active trigger can trigger the rule by a manual clicking mode, the timing trigger is triggered according to a designated polling period, and the passive trigger is automatically triggered when the trigger condition changes.
And selecting a specific node for arrangement according to service requirements, and planning service flows for all types of equipment in the system. In the process of arrangement, signals to be monitored or controlled are required to be configured according to specific nodes and rules, so that a reference relationship is established between the rules and the nodes and the signals, and an automatic control system maintains the reference relationship. The nodes comprise indication nodes, data nodes and action nodes. Indicating that the nodes are start and end nodes. The data nodes are nodes for calculating, recording, judging and comparing the signal data. The action node is a node which transmits a signal to perform equipment operation, state switching, quantitative adjustment, rule triggering and the like.
S3, creating an alarm strategy: and configuring alarms of different levels for physical signals of different signal types, wherein the alarms of different levels comprise threshold alarms, fluctuation alarms and switching alarms. For example, DO and DI type signals may create threshold alarms and handoff alarms, and AO and AI type signals may create threshold alarms and surge alarms. When the alarm strategy is created, a reference relation is established between the alarm strategy and the physical signal, and the automatic control system maintains the reference relation.
S4, creating a configuration view: the device and the signal are configured on the canvas for display or operation. Under the configuration management menu, a primary configuration or a secondary configuration is selected, a field cold fight device configuration view is arranged according to service requirements, any device or a public component is dragged to be arranged, the device configuration view is displayed according to configuration conditions, logic signals or physical signals can be configured, the public component comprises a water pipe, a button, signals, characters and arrows, the button is configured to be associated with the designated signals, and the designated signals are issued on a configuration view preview page. When the configuration view is organized, a reference relationship is established between the configuration and the signals, and the automatic control system maintains the reference relationship.
S5, maintaining and managing the reference relation and the signal version; the maintenance and management of the signal version information refers to: when the physical signal and the logic signal are created, the automatic control system maintains the version information of the physical signal and the logic signal, and if the physical signal and the logic signal are changed, the corresponding version information is automatically updated. Maintenance management for reference relationship maintenance refers to: if a reference relation is established between the objects, such as S2-S4, a signal is configured in the business process arrangement, an associated signal in the alarm strategy, and a signal is configured in the configuration view, that is, the business process, the alarm strategy and the configuration view all establish a reference relation with the signal, if a logic signal is associated with a physical signal, the logic signal and the physical signal also have a reference relation, the automatic control system records the reference information and the referenced information related to the reference relation and the version information of the referenced object when the reference relation occurs, wherein the referenced object is the signal, and the version information of the referenced object recorded at the moment when the reference relation occurs is the latest version information of the object. After the reference relation is established, if the signal is modified again, the version information of the signal is updated, and the version information of the signal in the reference relation recorded by the automatic control system is still the version information before modification, so that the condition of inconsistent data is caused. After the creation and configuration operations described in S1-S4 are completed, the automatic control system has the conditions for formal use, and can perform mode switching, and in the process of switching the maintenance mode into the production mode, the automatic control system checks the consistency of data, that is, scans the reference relation of all objects and the version information of the referenced objects, lists the object information inconsistent with all the version information in the reference relation, supports clicking the inconsistent object information to modify, and rescanning after confirming that there is no error, and if there is no abnormality, exits the maintenance mode, and switches to the production mode. For the abnormality which cannot be influenced, the abnormality can be directly confirmed in the prompt box, then the scanning is carried out again, and the scanning can be switched to the production mode for formally putting into use without the abnormality. In general, the equipment signal is rarely changed after the entire cooling access system, and if the object information is required to be changed, the maintenance mode can be switched back to the production mode for use after the maintenance mode is changed. Since the production mode does not have the authority to create, update and delete objects, the accuracy and data consistency of the system are ensured.
As shown in fig. 2, the system mode switching further includes switching from the production mode to the maintenance mode, switching from the production mode to the autonomous mode, and switching from the autonomous mode to the production mode. When the production mode is switched to the automatic control mode, checking the condition for starting the automatic control mode in the production mode, and switching to the automatic control mode if the condition for starting the automatic control mode is met; the control is switched from the self-control mode to the production mode, the control is supported to wait or forcibly terminate, and the control is switched to the production mode after the control is ended or terminated.
The automatic control system in the method supports flexible configuration and object information modification, can ensure the data consistency of signals, rules, alarm strategies, configuration and the like in a production environment, and greatly reduces the problem of inconsistent data caused by modifying the referenced objects.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (7)
1. The object reference relation maintenance method based on mode management in an automatic control system is characterized by comprising the following steps of: the method comprises the following steps:
creating, updating or deleting object information in a maintenance mode, wherein the object comprises a reference object and a referenced object, and the object information creation specifically comprises:
s1, creating equipment: defining different types of devices, creating corresponding components and signals on the devices, wherein the signals comprise physical signals and logical signals;
s2, arranging a business process: according to service requirements, creating different types of system rules, selecting specific nodes, configuring corresponding signals to complete specified service processes, and establishing reference relations among the system rules, the nodes and the signals; the system comprises a refrigeration system, a chilled water system, a cooling water system, a weather environment system and a waterway circulation system, wherein signals are cited objects, the system rules comprise active triggering, timing triggering or passive triggering rules, and nodes comprise indication nodes, data nodes and action nodes;
s3, creating an alarm strategy: configuring alarms of different levels for physical signals of different signal types, and establishing a referential relationship between an alarm strategy and the physical signals; wherein, the alarms of different levels comprise threshold alarms, fluctuation alarms and switching alarms, and the physical signals are referenced objects;
s4, creating a configuration view: configuring equipment and signals on canvas for display or operation, and establishing a reference relation between the configuration and the signals, wherein the signals are referenced objects;
s5, maintaining and managing the reference relation and the signal version;
and switching the system mode, wherein in the process of switching the maintenance mode to the production mode, checking the consistency of data, scanning the reference relation of all the reference objects and the version information of the referenced objects by the automatic control system, listing the inconsistent object information of all the version information, enabling the automatic control system to support clicking the inconsistent object information to modify, rescanning after confirming that no error exists, exiting the maintenance mode, and switching to the production mode.
2. The method for maintaining object reference relationships based on model management in an automation system according to claim 1, wherein: the physical signal created on the equipment in the S1 comprises custom signal attribute and signal association configuration information; the signal attribute comprises a signal name, a signal type, a signal display control type, a signal unit and a value range; the signal types comprise remote signaling signals, remote control signals, telemetry signals and remote regulation signals; the signal association configuration information comprises gateway type, network management group ID, point location, data type, precision multiplying power and complex operation; the data types include binary, boolean, unsigned, signed long ABCD, signed long CDAB, floating ABCD, floating CDAB, and double precision floating.
3. The method for maintaining object reference relationships based on model management in an automation system according to claim 2, wherein: the logic signals created on the device in S1 may be configured in a customized manner, and specifically includes: signal name, data type, signal unit, data source type and data source, wherein the signal type and data type are consistent with the physical signal, the data type of the logical signal contains date type besides the data type of the physical signal, and the data source type comprises associated physical signal, associated system rule, parameter configuration and built-in method.
4. The method for maintaining object reference relationships based on model management in an automation system according to claim 1, wherein: the equipment in the S1 comprises a cold water main machine, a plate heat exchanger, a water pump, an electric switch valve, an electric regulating valve, a bypass valve, a cold storage tank, a cooling tower, a water collector and a water separator.
5. The method for maintaining object reference relationships based on model management in an automation system according to claim 1, wherein: in the step S5, the maintenance and management of the signal version is specifically: when the signal is instantiated, the automatic control system initializes the version information of the signal, and when the signal is changed, the automatic control system automatically updates the version information of the signal.
6. The method for maintaining object reference relationships based on model management in an automation system of claim 5, wherein: in the step S5, the maintenance and management of the reference relationship specifically includes: after the reference relation is established, the automatic control system records the reference and the referenced object information related to the reference relation and the version information of the referenced object when the reference relation is established, and when the reference relation is established, the version information of the referenced object recorded by the automatic control system is the latest version information of the referenced object.
7. The method for maintaining object reference relationships based on model management in an automation system according to claim 1, wherein: the system mode switching further comprises switching from a production mode to a maintenance mode, switching from a production mode to an automatic control mode and switching from an automatic control mode to a production mode;
when the production mode is switched to the automatic control mode, checking the condition for starting the automatic control mode in the production mode, and switching to the automatic control mode if the condition for starting the automatic control mode is met;
the control is switched from the self-control mode to the production mode, the control is supported to wait or forcibly terminate, and the control is switched to the production mode after the control is ended or terminated.
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| US20210374157A1 (en) * | 2020-05-29 | 2021-12-02 | Nutanix, Inc. | System and method for near-synchronous replication for object store |
| CN116661756A (en) * | 2023-07-24 | 2023-08-29 | 浩鲸云计算科技股份有限公司 | Object analysis method and device based on low-code DSL |
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| US20210374157A1 (en) * | 2020-05-29 | 2021-12-02 | Nutanix, Inc. | System and method for near-synchronous replication for object store |
| CN116661756A (en) * | 2023-07-24 | 2023-08-29 | 浩鲸云计算科技股份有限公司 | Object analysis method and device based on low-code DSL |
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