Mechanical Parking Garage is a mechatronics equipment integrating mechanical, electronic, hydraulic, optical, magnetic control, and computer technologies. On the basis of realizing sequence control, it should also realize speed control, positioning control of the lifting system and lateral movement system, and circuit safety protection control, and so on. In general, we can use PLC technology to achieve these control processes. PLC is the abbreviation of Programmable Logic Controller, which is an industrial computer that can use programs to sequentially control the operation of mechanical equipment. It has the following advantages:
1. Flexible and versatile use
Due to standardization, the functional modules of PLC can be flexibly combined into control systems of various sizes and functions. When it is necessary to control different objects, just connect the output signal lines to the PLC terminal to control different output objects. When it is necessary to change the function of the control system, just modify the program.
2. High reliability and convenient maintenance
The PLC of the mechanical parking garage adopts microelectronic technology, uses electronic storage devices to replace traditional relay contacts, and uses software programs to replace the complicated wiring of relays, so its service life is long, and its reliability is greatly improved, and it has the ability of self-diagnosis of faults. The interface of the PLC has a strong load-carrying capacity, and the interface circuit is generally modular, which is convenient for maintenance and replacement, greatly shortening the time for troubleshooting and repair.
3. Small size, low power consumption, and high cost-effectiveness
The input and output systems of the PLC can intuitively reflect the changing state of the field signals, and can also intuitively reflect the running state of the control system in various ways, such as internal working state, communication state, I/O point state, abnormal state, and power state, all of which have prominent indicators, which is very conducive to the monitoring of the system by operators and maintenance personnel. The PLC is a user-oriented device, with a vivid and intuitive programming language, fewer instructions, and simple syntax.
Compared with ordinary mechanical parking garages, it basically replaces hardware wiring connections with software programming, which not only reduces the burden of circuit installation work, but also greatly shortens the overall construction period of the garage. This software programming system has advantages in task control and industrial programming languages. It can also perform simulation design to prevent program tampering and loss during operation.
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