Controlling system of intelligent air compressor

Abstract

An intelligent air compressor control system comprises a main controller and an excutive unit circuit. The main controller consists of a one-chip computer CPU1, an analog measuring circuit, a digital to analog converter circuit, a keyboard circuit, a liquid crystal display circuit, a process monitoring display circuit, a RS422 communication circuit and a RS485 communication circuit. The excutive unit circuit consists of a one-chip computer CPU2, a RS422 communication circuit connected with the one-chip computer CPU2, a phase-sequence discrimination circuit, switching input and output circuits and a relay assembly connected with the switching output circuit. The main controller is connected with the excutive unit circuit through the RS422 bus.

Description

technical field [0001] The invention relates to a control circuit arranged on an air compressor, in particular to an intelligent air compressor control system arranged on an intelligent air compressor for controlling the operation of the intelligent air compressor. Background technique [0002] At present, compressed air is the second largest power source next to electricity in the world, and it is also a process gas source with multiple uses, and its application range covers various fields. The basic principle of the air compressor is to use the motor to drive the machine to compress the gas to the required pressure and output it. A control device of an air compressor in the prior art only involves the control of switch signals, and the control circuit is controlled sequentially by a relay logic control circuit or an integrated circuit. [0003] See figure 1 As shown, a control circuit of an air compressor A100 in the prior art consists of a relay logic control circuit A1...

AI Technical Summary

Problems solved by technology

[0006] 1. During the operation of the air compressor in the prior art, the operator needs to constantly observe the data displayed by the thermometer, pressure gauge, etc. to adjust the operating state of the air compressor, and the labor intensity of the operator is high;

[0007] 2. Since the air compressor in the prior art has no automatic adjustment control circuit, the analog parameters such as pressure and temperature cannot be adjusted accurately;

[0008] 3. The operating efficiency and safety of the prior art air compressor are low

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