RU176997U1 - Automated device for monitoring and control of technological processes of a dredging dredger - Google Patents

Abstract

The utility model relates to the field of hydromechanization and is intended for automatic and remote automated control of technological equipment of dredging dredging projectiles (dredgers) in order to ensure high productivity and safety of work and minimizing the crew of the vessel. The device contains a programmable logic controller 1, sensor 2 for pulp consumption, sensor 3 for density pulp (consistometer), pressure sensor 4 in the slurry pipeline, layer 5 thickness sensor (layer meter), soil position sensor 6 A primary frame, a precipitation sensor 7, each of these sensors is connected to a corresponding device for interfacing with an object - bow 8, central 9, aft 10. The object interfacing devices, in turn, are connected via digital data exchange interfaces to the corresponding controller module 1. Also the device comprises an alarm unit 11 and an operator panel 12, each of which is connected to the corresponding module of controller 1. The device includes a fuzzy controller (controller with fuzzy logic) 13, which includes fuzzification 14, decision block 15, the knowledge base unit 16, defuzzification block 17 are connected to respective modules of the controller 1. Increased efficiency of dredging is achieved through the use of the fuzzy controller acting on a pump supplying soil, the angle of inclination of the frame and soil feeding speed of the dredger.

Description

Automated device for monitoring and control of technological processes of a dredging dredger.

The utility model relates to the field of hydromechanization and is intended for automatic and remote automated control of technological equipment of dredging dredging projectiles (dredgers) in order to ensure high productivity and safety of work and minimize the crew of the vessel.

A device for controlling a dredger [copyright certificate for the invention of the USSR No. 708020, IPC E02F 3/90], comprising a current load sensor of a drive winch engine, a power and speed sensor of a mechanical baking powder drive.

Known Regulator for controlling the operation mode of a suction dredger [USSR inventor's certificate No. SU 1451223 A1, IPC E02F 3/90], comprising a current load sensor, a vacuum sensor, a pulp flow sensor, a pulp consistency sensor, shapers, dead zone adjusters, scale control units , delay unit, inverter, cut-off switches, dominant signal extraction unit, driver amplifier, alarm unit, display unit.

The disadvantage of these devices is that the control algorithms embedded in them are highly efficient only if there is a full mathematical description of the object and the regulators are pre-configured in accordance with this description, which is practically impossible for the hydroprocessing process. The inability to adapt to changing production conditions (soil density, soil hardness, depth of the reservoir at the place of work, etc.) does not allow for maximum performance.

More effective is the use of control systems on dredgers using expert knowledge in the field of hydraulic development formalized in the form of rules. The input and output parameters of an object are defined as linguistic variables, and a qualitative description of the processes is set by a set of rules defined by an expert based on the principles of fuzzy logic (fuzzy logic). This eliminates the need for a complete mathematical description of the control object.

The task being solved by a utility model is the control of technological processes of a dredging dredger. Achievable technical result - increased productivity of the dredging process.

The problem is solved by the introduction of new functional elements. The claimed automated device for monitoring and controlling the technological processes of a dredging dredger contains a programmable logic controller, a pulp flow sensor, a pulp density sensor (consistometer), a pulp pressure sensor, a layer thickness sensor (layer meter), a frame position sensor, an upsetting sensor, each of these sensors connected to the appropriate device for interfacing with the object - bow, center, aft, also contains an alarm unit and an operator console, each of which is connected to the appropriate controller module. It is characterized by the fact that it includes a fuzzy controller (controller with fuzzy logic), which includes a fuzzification unit, a decision making unit, a knowledge base unit, a defuzzification unit connected to the corresponding controller modules and interconnected via digital data exchange interfaces.

The automated device for monitoring and controlling the technological processes of the dredging dredger shown in the Figure contains a programmable logic controller 1, a pulp flow sensor 2, a pulp density sensor 3 (consistometer), a pressure sensor in the slurry pipe 4, a layer thickness sensor 5 (layer meter), a position sensor 6 soil frame, precipitation sensor 7, each of these sensors is connected to a corresponding device for interfacing with the nose - bow 8, central 9, aft 10. The device for interfacing with the object, in turn, they are connected via digital data exchange interfaces to the corresponding controller module 1. The device also contains an alarm unit 11 and an operator panel 12, each of which is connected to the corresponding controller module 1. The device includes a fuzzy controller (controller with fuzzy logic) 13, which includes a fuzzification unit 14, a decision making unit 15, a knowledge base unit 16, a defuzzification unit 17 connected to the respective controller modules 1. The dredging efficiency is improved due to t applying fuzzy controller acting on a pump supplying soil, the angle of inclination of the frame and soil feeding speed of the dredger.

The claimed device operates as follows.

Pulp flow sensor 2, pulp density sensor 3 (consistometer), pulp line pressure sensor 4, layer thickness sensor 5 (layer meter), soil frame position sensor 6, sediment sensor 7 continuously measure the current values of the process parameters. Data from these sensors is received through the device 8, 9 and 10 pairing with the object in the controller 1.

In the block of the knowledge base 16, fuzzy control rules formalized accordingly are generated, formed by the expert on the basis of a logical understanding of the control problem.

Information processing and the formation of control actions is carried out as follows:

1) In the fuzzification unit 14, the specific values of the input variables are converted into the values of linguistic variables by applying certain provisions of the theory of fuzzy sets, namely using membership functions.

2) In the decision making block 15, based on the 16 control rules stored in the knowledge base block, which reflect the functional relationship between input and output, control actions are formed.

3) In the defuzzification unit 17, a reverse transition is carried out from fuzzy values of quantities (linguistic variables) to certain physical parameters that enter controller 1 and are then transferred to actuators.

To control the process, the operator provides an alarm unit 11 and a remote control 12.

Claims (1)

An automated device for monitoring and controlling the technological processes of a dredging dredger containing a programmable logic controller, pulp flow sensor, pulp density sensor (consistometer), pulp pressure sensor, layer thickness sensor (layer meter), soil frame position sensor, sediment sensor, each of these sensors connected to the appropriate device for interfacing with the object - bow, center, stern, also contains an alarm unit and an operator console, each of which connected to the corresponding controller module, characterized in that it includes a fuzzy controller (controller with fuzzy logic), which includes a fuzzification block, a decision block, a knowledge base block, a defuzzification block connected to the corresponding controller modules and interconnected via digital data exchange interfaces.

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