Flow path control method for material handling system of stock yard

Abstract

The invention relates to a method for controlling a material transporting system of a stock yard of a large-scale industrial enterprise. Flow equipment is constructed to select the selectional relation between a matrix storage flow and the equipment; a line number of a matrix is used as a flow number; and a row number is used to identify the equipment. Then the flow number is input; a flow equipment optional word is extracted from a flow equipment selection matrix; the flow equipment optional word and an equipment status word are subjected to logical operation; a calculation result is used to judge whether the flow is ready; if the flow is not ready, the flow number is re-input to select other flows; if the flow shows ready, the flow equipment optional word and the equipment status word are assigned to an equipment interlocking control module; and an equipment interlocking control program outputs the equipment status word. The equipment status word transmits a startup control signal and a stoppage control signal of the equipment, thereby completing the flow control. The method can save the investment of a secondary computer for controlling materials in the stock yard, can be conveniently realized through programming in a PLC or other logical controllers and shorten time for software development.

Description

technical field [0001] The invention relates to the control of the material conveying system in the raw material field of large-scale factories and mines. Background technique [0002] At present, there are mainly two methods of process control in raw material yards. One is to use a secondary computer to implement process control using database and high-level language programming. This method is mainly suitable for large-scale raw material yards, with complex systems, many equipment, and many processes; the other The first is to program one by one according to the process, and realize one process by one program. This method is mainly suitable for some small raw material farms, with less equipment, fewer processes, and a simpler system, which is not suitable for large raw material farms. [0003] The second-level computer system used in the first method is mostly imported from abroad, and more manpower and funds are invested in independent development. At present, the domesti...

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Problems solved by technology

[0002] At present, there are mainly two methods of process control in raw material yards. One is to use a secondary computer to implement process control using database and high-level language programming. This method is mainly suitable for large-scale raw material yards, with complex systems, many equipment, and many processes; the other The first is to program one by one according to the process, and realize one process and one program. This method is mainly suitable for some small raw material farms, with less equipment, less processes, and a relatively simple system, which is not suitable for large raw material farms.

[0003] The second-level computer system used in the first method is mostly imported from abroad, and more manpower and funds are invested in independent development. At present, the domestic industrial structure is adjusted, the scale of enterprises is getting larger and smaller, and small raw material farms are gradually being eliminated or transformed. Generally do not use the second method

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