RU183535U1 - APPARATUS OF SOFTWARE AND TECHNICAL MEANS OF CONTROL OF TECHNOLOGICAL PROCESSES - Google Patents

Abstract

The hardware and software for technological process control is installed in the cabinet and contains: many local control units, each of which consists of a controller, a terminal module and a splitter unit and provides process control and control in accordance with the program stored in the controller; two switching units, each of which contains a network switch, a cross-optical switch and a node of switching elements that provide information transfer via Ethernet and RS-485 communication interfaces; two central computers connected by communication interfaces with each other and with the controller, providing the collection, storage and processing of technological information and operating in the hot standby mode, a panel station with a touch screen located in a cabinet, connected via network switches simultaneously with two central computers, providing display information and input of control commands. In this case, the central computers are connected to external technological devices and external remote computers via redundant Ethernet and RS-485 communication interfaces.

Description

Technical field

The utility model relates to process control devices implemented on the basis of information technology and can be used to build automatic and automated process control and management systems at industrial enterprises in various industries.

State of the art

A known method of two-level control of technical means and a system for its implementation (patent RU 2503985 C2, IPC G05B15 / 00, published 01/10/2014, bull. 1).

The specified invention relates to the field of control of technical means (TS) and can be used to control vehicles for various purposes. The technical result consists in expanding the functionality by collecting, processing, analyzing data on the objects of influence, making decisions on the impact and evaluating the effectiveness of the impact of your vehicle on all objects of impact. In the method, a database of their TS, objects of influence and environmental conditions is formed, analysis and additional determination of data on objects of influence, identification and classification of objects of influence, determination of priorities and formation of a list of objects of influence in accordance with their priorities, assessment of the effectiveness of the impact at the control point (PU) of the first level, assessment of the capabilities of their vehicle group at second-level controllers, the formation of a list of vehicles for efficiency, the distribution of air objects Actions between the vehicle, the formation of instructions and control commands, the transfer of their technical means. The system implements the operations of the method.

As a disadvantage of this method, low reliability can be indicated, since the tasks solved at each of the levels are predetermined and unchanged, thus, when a node of one of the levels fails, the entire system is disrupted.

Also known is an automated control system and regulation of technological parameters (patent RU 75482 U1, IPC G05B15 / 00, G05B19 / 00, published on 10.08.2008, bull. 22).

The aforementioned automated control and regulation system for technological parameters has wide application possibilities both for controlling technological processes of various industrial enterprises and for designing automated control systems of any complexity by design organizations. The technical result - the versatility of the use of ACS for measuring and regulating various technological parameters is achieved by the fact that an automated control system of technological parameters, containing transmitting and receiving equipment, a microprocessor controller, input-output modules of discrete and analog signals, and a power source, in addition to input modules output of discrete and analog signals contains modules for pairing electrical signals, including blocks of additional relays for discrete signals and rated converters for analog signals. In addition, in an automated control system between control centers and workstations, optical and wireless Profinet communication channels have been laid.

The disadvantage of this device is the low reliability of the system, since non-redundant communication channels are used for communication between control centers and workstations.

An automated control system for civil and industrial facilities is also known (patent RU 91635 U1, IPC G05B 15/00, published 02.20.2010, bull. 5).

The automated control system for civil and industrial facilities relates to telemechanics devices. The system can find application in areas where operational accounting of energy resources, heat, water, etc., is required, as an autonomous control system or as part of automated process control systems. The technical result is to obtain data on the state of the controlled object in real time and simplify the design of the system. The technical result is achieved due to the fact that the automated monitoring and control system includes discrete, analog, digital sensors of control objects integrated through a local area network, signal converters, a signal interface to a control object, actuators, where a signal interface to a control object is connected with a Profinet network bus, directly connected to sensors and actuators and equipped with a database of sensor interaction algorithms with pairing structure.

The disadvantage of this analogue is its limited performance since one controller is used to process information from sensors and generate control signals, the performance of which will decrease with an increase in the number of sensors, in addition, this analogue has insufficient reliability, since one information network is used without data backup and if the switch fails, the system may lose functionality.

As the nearest technical solution, a universal information processing complex is considered (patent RU 2509329 C1, IPC G05B15 / 00, published on 03/10/2014, bull. 7).

The specified invention relates to the field of information technology, in particular to computer and information technology, and can be used in automated control systems for the technical parameters of industrial facilities. The technical result is to increase the operational efficiency of a universal complex of information processing. The universal complex of information processing is made in a two-module version. The upper module contains a voltage stabilizer, power supply units of the main components of the complex, as well as two filter partitions with a cooler installed on one of them, two external forced-air coolers, five 8P8C standard insulated IP54 inputs, and one high-frequency connector for antennas of the communication module, input of electric power and the lower module, which contains a universal information processing device, a communication device, a custom switch for implementing wired inclusions, a climatic complex consisting of two internal coolers with forced airflow, two thermostats “for cooling” and “for heating”, an electric heater for automation cabinets, two thermoelectric converters that allow optimizing the parameters of the medium in the internal, isolated volume of the lower module.

The disadvantage of this technical solution is that the complex has limited functionality for providing information to the operator and receiving commands from the operator due to the absence of any control panel in the complex, in addition, the complex has insufficient reliability, since the complex does not provide for power from two independent sources.

Utility Model Summary

The proposed utility model will allow to solve the problem of improving the reliability of technical equipment, will provide enhanced functionality.

The technical result is achieved due to the fact that the proposed utility model - the hardware of the software and hardware for process control, mounted in a cabinet, according to the invention, contains

a plurality of local control units, each of which consists of a controller, a terminal module and a splitter unit and provides control and process control in accordance with the program stored in the controller,

two switching units, each of which contains a network switch, a cross-optical and a node of switching elements that provide information transfer via communication interfaces,

two central computers connected by communication interfaces with each other and with controllers, providing the collection, storage and processing of technological information and working in the hot standby mode,

a panel station with a touch screen located in a cabinet, connected via network switches simultaneously with two central computers, providing information display and input of control commands, while central computers are connected to external technological devices and external remote computers via redundant communication interfaces.

Preferably, Ethernet and RS-485 interfaces are used as communication interfaces.

Preferably, the apparatus further comprises:

two power supply units operating in redundancy mode and connected to the controller via a splitter unit;

a power supply input unit having two independent external power inputs and connected by outputs to two specified power supplies, and

a protection and switching unit connected by inputs to the outputs of the power supplies and an output to the splitter unit.

The proposed utility model allows to expand the functionality for displaying information through the use of a panel station and to increase the reliability of operation by using two power supplies and a power supply input unit, which has two independent external inputs.

Brief Description of the Drawings

The utility model is illustrated by a description of a preferred embodiment with reference to the accompanying drawings, in which:

FIG. 1. general appearance of the hardware-installed hardware and software for technological process control in a cabinet;

Figure 2. depicts a block diagram of the hardware of software and hardware process control.

Description of the preferred embodiment

The hardware and software for technological process control is mounted in a cabinet 1 (Fig. 1) and contains many local control units 2 (Fig. 2), each of which consists of a controller 3, a terminal module 4, and a splitter unit 5. The control unit 2 provides monitoring and control of the technological process in accordance with the program stored in the controller.

The number of local control units 2 is determined in accordance with the maximum number of sensors from which it is necessary to receive information, as well as the number of output signals required for controlling technological equipment.

The equipment also contains two switching units 6, 7, each of which contains a network switch 8, a cross 9 optical and a node 10 switching elements for transmitting information via communication interfaces. The communication interfaces are Ethernet and RS-485.

Two central computers 11 and 12, connected by communication interfaces with each other and with the controller 3, provide for the collection, storage and processing of technological information. Two central computers 11 and 12 are in hot standby mode.

The equipment also contains a panel station 13 with a touch screen 14, located in the cabinet 2, connected via network switches 8 simultaneously with two central computers 11 and 12 and providing information display and input of control commands.

In this case, the central computers 11 and 12 are connected to external technological devices (not shown in FIG. 2) and external remote computers via redundant Ethernet and RS-485 communication interfaces.

The equipment additionally contains two power supply units 15, 16 installed in the cabinet 1, operating in the backup mode and connected to the controller 3 through the splitter unit 5; a power supply input unit 17 having two independent external power inputs 18, 19 and connected by outputs 20, 21 to the two indicated power units 15, 16. The equipment also contains a protection and switching unit 22, connected by inputs 23, 24 to the outputs of power supply units 15, 16 and output 25 - to the splitter blocks 5.

The operation of the equipment is as follows.

The basis of the equipment is programmable controllers 3, which through terminal modules 4 receive information from sensors and output control signals of technological equipment.

The supply voltage is supplied to the controllers 3 through blocks 5 of the splitters. The controller 3, the terminal module 4 and the splitter unit 5 connected to the power supply units 15, 16 constitute the necessary group of modules for organizing a local control system operating in accordance with the software previously installed in each controller 3.

Each controller 3 includes a processor module, discrete, analog, and a number of specialized signals input-output modules. The number of I / O modules is determined by the number of signals of each type. The total number of I / O modules connected to one processor is limited by the size of the frame in which the controller is mounted. If the I / O modules located in one frame do not provide the necessary total number of inputs / outputs, then the next controller is installed, etc. The backup function of the controllers is implemented by installing two controllers 3, identical in the set of modules and working in parallel under the control of a computer.

The central computer 11 and the central computer 12 operate in a hot standby mode. Information network 26 (Ethernet) and information network 27 (RS-485) are also reserved; for this, independent groups of network equipment are used, including network switches 8, cross-links 9 optical and separate channels of node 10 of the switching elements.

Information networks are used to communicate with external equipment - workstations of automated workstations of operators, similar automatic telephone exchange equipment, devices, etc.

The panel station 13 performs the functions of a human-machine interface, the panel station is not redundant, since its failure does not lead to an emergency state of the equipment.

The equipment is powered from two independent sources 18 and 19 (Power input A and Power input B). The input power supply unit automatically switches to the backup Power input B in the event of a power failure at the power input A. Power supply units 15, 16 operate in standby mode, switching from the faulty power supply to a working unit is performed by the protection and switching unit 22.

The fan unit 28 mounted in the upper part of the cabinet 1 avoids overheating of the equipment mounted inside the cabinet. The inclusion and regulation of the performance of the fan unit is controlled by the temperature control unit 29.

Industrial applicability

This utility model has advanced functionality, is made on a modern elemental base, has increased reliability and security. The utility model can be used to build automatic and automated control systems for technological processes at industrial enterprises of various industries.

Claims (10)

1. Hardware-software tools for technological control, mounted in a cabinet and containing a plurality of local control units, each of which consists of a controller, a terminal module and a splitter unit and provides control and process control in accordance with the program stored in the controller; two switching units, each of which contains a network switch, a cross-optical and a node of switching elements and provides information transfer via communication interfaces; two central computers connected by communication interfaces with each other and with controllers, providing the collection, storage and processing of technological information and working in the hot standby mode, characterized in that it comprises a panel station with a touch screen located in a cabinet, connected via network switches simultaneously with two central computers, providing information display and input of control commands, while central computers are connected to external technological devices and external remote computers via redundant communication interfaces . 2. The equipment according to claim 1, characterized in that Ethernet and RS-485 interfaces are used as communication interfaces. 3. The equipment according to claim 1, characterized in that it further comprises those installed in the cabinet: two power supply units operating in redundant mode and connected to the controller through the splitter unit; a power supply input unit having two independent external power inputs and connected by outputs to the two specified power supplies, and a protection and switching unit connected by inputs to the outputs of the power supplies and an output to the splitter unit.

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