Virtual-real integrated simulation system for mechanical-electrical-hydraulic equipment

Abstract

The invention discloses a virtual-real integrated simulation system for mechanical-electrical-hydraulic equipment. The simulation system is composed of a special embedded process control unit, a mechanical-hydraulic real-time simulation unit, visual simulation software and a simulation communication interface. The special embedded process control unit controls the input switching unit and the output switching unit to realize direct control of an actual controlled object and can also form a complete closed-loop control system with a virtual simulation system, during the working period of the virtual simulation system, data can be sent to the visual simulation assembly in real time, real-time visual feedback is achieved, and the running state of the virtual controlled object is displayed ina three-dimensional mode in real time. The system has the advantages that the system is based on the special embedded process control unit, complete testing of actual control logic can be achieved, and development and testing of the control logic in a virtual simulation environment can be supported. The developed complete control logic can be directly applied to an actual control system without any modification.

Description

technical field [0001] The invention relates to mechanical-hydraulic real-time simulation technology, semi-physical simulation technology and visual simulation technology, and mainly relates to a virtual-real integrated simulation system for electromechanical hydraulic equipment. Background technique [0002] Electromechanical hydraulic equipment is widely used in various industries. For ordinary electromechanical hydraulic systems, the usual design and performance analysis systems model and analyze mechanical and hydraulic systems relatively independently, or use the results of mechanical system performance analysis as The input to the design of the hydraulic system is followed by the design of the control system. However, in some large-scale electro-hydraulic projects, the mechanical, hydraulic and control systems are highly coupled. When traditional design and analysis systems are applied to such systems, there are many obvious problems, mainly including: 1) The relations...

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Problems solved by technology

However, in some large-scale electro-hydraulic projects, the mechanical, hydraulic and control systems are highly coupled. When traditional design and analysis systems are applied to such systems, there are many obvious problems, mainly including: 1) The relationship between various subsystems It is complicated. In the design stage, the designers of some equipment can only design according to the known index requirements. The problems caused by system coupling cannot be revealed. If the problems are exposed in the system test stage and then modified, on the one hand, it will affect the progress of system development. On the other hand, local system design changes may affect other subsystems, causing a lot of repetitive design work; 2) The system integration workload is heavy, and there is no effective way to analyze the overall system indicators for the integrated system. Evaluation; 3) System testing is costly, time-consuming, and harsh

[0003] In view of the various drawbacks of traditional design methods, using simulation analysis system to guide design in the design process has become a common means of optimal design. At present, research institutions at home and abroad mainly use different simulation software, through certain simulation interfaces, simulation management programming means Integrate these simulation software to achieve the purpose of co-simulation of mechanical, hydraulic, and control systems. These simulations are usually aimed at fixed work processes, and the key design element of "human" is not considered; and the simulation process of pure software is too idealized. There may be a big gap with the actual application process

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