RU116252U1 - AUTOMATED SYSTEM OF MANAGEMENT OF TECHNOLOGICAL PROCESSES - Google Patents

Abstract

An automated process control system containing a display device, to the input of which a control unit is connected, the input / output of which is connected by a data bus with the inputs / outputs of the control objects of the system, characterized in that a second display device is introduced, to the input of which a second control unit is connected, the input / whose output is connected by a data bus with the inputs / outputs of the system's control objects, and also a system state control unit, a process modeling unit, a process planning unit and a process monitoring and forecasting unit are introduced, the inputs / outputs of which are connected to the data bus.

Description

The utility model relates to control and regulatory control systems for general purposes and can be used to control the technological processes of various facilities, including oil and gas production facilities.

The automated process control system (ACS) of a technological process (TP) in general is a device containing a set of software and hardware designed to automate the management of basic technological operations of a given technological process.

Known hardware and software complex (AIC) of automation, control, visualization and monitoring of technological processes according to the patent for utility model RU No. 90588 U1, IPC G05B 15/00, G05B 19/418, publ. 01/10/2010. APC functional modules are used to physically affect the inputs of process control devices, take readings from process control sensors and transmit information about the status of inputs / outputs of control devices to the main control device. An automated workstation with client software is intended for visualization, monitoring and dispatch control of functional modules. An automated workstation provides a display of the state of the system and processes and provides an interface for managing them, enables the operator to assign a sequence of tasks automatically performed by the system, and also to automatically record a log of changes in the parameters of technological processes. However, the well-known agro-industrial complex does not have redundancy of hardware and software and provides only a regular control mode.

A known system of automatic control of technological processes at the enterprises of the chemical and petrochemical industries, oil refineries according to the patent for the invention RU No. 2250484 C1, IPC G05B 13/04, A62C 37/00, publ. 04/20/2005. In addition to the process control system, the device includes a fire extinguishing control system and a cleaning control system, each of which contains corresponding sensors, control and diagnostic units, as well as executive devices. At the same time, all three systems are interconnected and with the risk scenario forecasting unit, which contains models of regular and abnormal modes of the technological process.

The invention provides environmental safety and reduction of damage from pollution in case of violation of the production technology, in case of equipment failures and during industrial impacts. However, the known system has no redundancy of hardware and software and does not provide a training mode of operation.

Known simulators that provide training for operators of various systems.

So the simulator according to the patent for the invention RU No. 2273889 C1, IPC G09B 19/00, publ. 04/10/2006 provides training for operators of coastal terminals. The simulator contains an operator unit, an instructor unit, a data server, a unit for recording student histories, and a network message router containing 2N + 2 network data units connected by a network data transfer bus. Moreover, the instructor unit comprises an instructor control unit and a system process modeling unit and a unit for calculating structural strength connected by two-way communication. The well-known simulator works in standalone mode and cannot be used to improve the reliability of control of process control systems.

Closest to the claimed utility model is a visualization and control system in a network of complex topology according to the invention patent RU No. 2389062 C2, IPC G06F 06F 3/14, publ. 05/10/2010, which contains a control unit, the first output of which is connected to the input of the display device, and the second input / output of which is connected by a data bus to the inputs / outputs of network control objects. The system provides the formation of alarms, the supply of control actions and control over troubleshooting. However, the known system has no redundancy of hardware and software and provides only the normal control mode.

The objective of the utility model is to create an automated process control system with redundancy of hardware and software and providing a training operating mode, planning mode, monitoring and forecasting of technological processes.

The technical result achieved using this utility model is to expand the functionality of an automated process control system and increase the reliability of its operation.

The problem with the achievement of the above technical result is solved by the fact that, in accordance with a utility model, the control unit is connected to the input of which a control unit is connected, the input / output of which is connected by a data bus to the inputs / outputs of the system’s control objects, according to the utility model a second display device, to the input of which a second control unit is connected, the input / output of which is connected by a data bus to the inputs / outputs of the system control objects, and kzhe administered block control system state simulation process unit, a scheduling unit process and unit monitoring and prediction process, the inputs / outputs of which are connected to the data bus.

The expansion of the functionality of ACS TP and increasing the reliability of its operation is ensured by the joint use of newly introduced units in the system with their interrelations.

The utility model is illustrated by drawings, which depict:

figure 1 is a structural electrical diagram of an industrial control system;

figure 2 is a structural electrical diagram of a control unit.

The automated process control system comprises a control unit 1, the first output of which is connected to the input of the display device 2, and the second input / output of which is connected by a data bus to the inputs / outputs of the system control objects 3. A second control unit 4 is connected to the input of the second display device 5, the input / output of which is connected by the data bus to the inputs / outputs of the system control objects 3. The inputs / outputs of the system status monitoring unit 6, the TP modeling unit 7, the TP planning block 8 and the TP monitoring and forecasting unit 9 are connected to the data bus.

The control of technological processes simultaneously with visualization is ensured by the formation of two data flows opposite in direction, connected by feedback: information - from indicators of control objects 3 to display device 2 and control - from display device 2 to control bodies 3. An example implementation of the control unit 1 is shown in figure 2.

The control units 1 comprises a database and synchronization unit 10, an image forming unit 11, a data exchange control unit 12, a data backup recording unit 15, a process progress recording unit 14, series-connected indicator reception unit 19, an alarm warning generation unit 16 signaling (APS) and indicator data storage unit 13, serially connected control actions storage unit 14, control actions generation unit 17 and control actions sending unit 20. The output of the indicator data storage unit 13 is connected to the first input of the data backup recording unit 15 and to the first input of the image forming unit 11. The input / output of the data exchange control unit 12 is connected to the first inputs / outputs of the database and synchronization unit 10 and the control actions storage unit 14 and to the second inputs / outputs of the image forming unit 11 and the data backup recording unit 15. The input / output of the database and synchronization unit 10 is connected with the third input / output of the image forming unit 11, with the second inputs of the indicator data storage unit 13, the control actions storage unit 14, the APS signal generation unit 16 and the control actions generation unit 17. The outputs of the block 19 for receiving indications of indicators, block 16 for generating APS signals, block 17 for generating control actions and block 20 for sending control actions are connected to the input bus of the process recording unit. The input of the indicator reception unit 19 and the output of the control action sending unit 20 are connected to the output bus of the unit, which is the second input / output of the control unit 1. The control unit 4 is identical.

Unit 6 for monitoring the state of the system contains two subsystems for monitoring the state of health of a set of units 1 and 2 and units 4 and 5, respectively, and a unit for generating a command to connect a backup set of units 4 and 5 when the set of units 1 and 2 fails and vice versa health.

Block 7 modeling TP provides simulation of TP for use of blocks 4 and 5 in the simulator mode and the issuance of data on the parameters of TP during the operation of blocks 8 and 9. Block 8 of the planning of TP provides the preparation of plans for the implementation of the proposed operations. Unit 9 monitoring and forecasting TP provides the issuance of recommendations for the management of TP in normal and emergency modes. The mathematical models used in blocks 7, 8 and 9 are determined depending on the specific technological process.

Automated process control system operates as follows. In the initial position, the process control is carried out by the control unit 1 with the display device 2 and the blocks of 10 databases and synchronization in the control units 1 and 4 are synchronized, that is, the set of units 4 and 5 is in a hot reserve and can be used when working with blocks 7, 8 and 9 in the respective modes. When working in a training mode, the input of the control unit 4 receives data from the TP modeling unit 7, which are processed by the control unit 4 and displayed on the display device 5. With the joint work of the control unit 4 with blocks 8 and 9, the tasks of monitoring, forecasting and planning TP are ensured, respectively. That is, in the normal control mode using the control unit 1, the control unit 4, acting as a hot reserve, is used in the training mode or expert system mode with a slight increase in additional equipment.

In case of failure of block 1 or 2, upon a command from block 6, real signals from control objects 3 are received at the input of block 4, and control is transferred to control block 4 with a display device 5.

Thus, the proposed joint use of automatic process control units provides an extension of the functionality of the automatic process control system and an increase in the reliability of its operation.

Claims (1)

An automated process control system comprising a display device, to the input of which a control unit is connected, the input / output of which is connected by a data bus to the inputs / outputs of the system control objects, characterized in that a second display device is introduced, to the input of which a second control unit is connected, an input / the output of which is connected by a data bus to the inputs / outputs of the system's control objects, as well as a unit for monitoring the state of the system, a block for modeling a process, a block for technological process and a unit for monitoring and forecasting the technological process, the inputs / outputs of which are connected to the data bus.