Modular intelligent control system and method of crane

Abstract

The invention discloses a modular intelligent control system and method of a crane. The modular intelligent control system comprises a control unit and power units controlled by the control unit. The control unit is characterized by comprising a signal acquisition module, a central processing unit and a logic output module, wherein the signal acquisition module is used for acquiring setting signals given by a user and action feedback signals fedback by all the power units controlled by the control unit in real time, processing the obtained singles and transmitting the processed signals to the central processing unit; the central processing unit is internally embedded with multiple motor control mode programs, and can be used for switching and selecting according to set signals, and operating the motor control module programs corresponding to the set signals to realize the logic control on the power units, and simultaneously, the central processing unit is also used for monitoring operating states of the power units in real time and carrying out fault alarming when an abnormal condition occurs; and the logic output module is used for controlling the operation of the power units connected with the logic output module according to logic control signals outputted by the central processing unit. The modular intelligent control system and method disclosed by the invention have the advantages that the control cost is low, the control loop is simple, the fault rate is low, the maintenance is convenient, the service life of the whole system is prolonged, the design and the production are simple and convenient, and the like.

Description

technical field [0001] The invention relates to a crane control system, in particular to a modular intelligent control system and a control method used in the field of crane motor control. Background technique [0002] At present, there are still many domestic crane control mechanisms that use series resistors for motor speed regulation, and their logic control systems still remain in the traditional control mode of the 1990s, that is, relays and contactors are used to directly connect the control loop. Its characteristics are: low cost, complex control circuit, high failure rate, and frequent maintenance; the maintenance tasks of cranes using this control method are heavy in the later stage, and it is easy to affect the normal production of users. In addition, as the country pays more and more attention to safety production, the new national standard for cranes clearly states that it is necessary to add various detection information to the crane system. Therefore, the trad...

AI Technical Summary

Problems solved by technology

Therefore, the traditional control system can no longer meet the current technical requirements and needs to be modified accordingly

At present, most of the transformation methods for this type are to increase the PLC control system, and the existing simple PLC control method has the following problems: high cost, simple circuit, low failure rate, but maintenance requires professional and technical personnel, etc.

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