Double-direct current brushless motor controller of currency counting machine and control method thereof

Abstract

The invention provides a double-direct current brushless motor controller of a currency counting machine. The double-direct current brushless motor controller comprises a power supply circuit, a rotor position detection circuit and a communication unit. The rotor position detection circuit comprises a microprocessor control circuit of master and slave microprocessors, a master control power tube driving circuit and a slave control power tube driving circuit, wherein the master control power tube driving circuit and the slave control power tube driving circuit are used for driving two direct current brushless motors. The controller is used for receiving instructions from the currency counting machine to control a master direct current brushless motor and a slave direct current brushless motor to work. The communication unit is used for communicating a state signal and a speed signal between the master and slave microprocessors so as to allow the master direct current brushless motor and the slave direct current brushless motor to cooperatively work, is used for controlling the master and slave motors of the currency counting machine to output stable speed under different loads and guarantees currency to stably and sequentially pass through detection positions of optical and electromagnetic sensors.

Description

technical field [0001] The invention relates to a motion control system applicable to industrial equipment and financial equipment, in particular to a double DC brushless motor controller of a counterfeit banknote counting instrument. Background technique [0002] With the development of counterfeiting technology, it is becoming more and more difficult to identify counterfeit banknotes, and the existing anti-counterfeiting equipment urgently needs to be updated. At present, the multi-spectral banknote counting device is the development direction of the international banknote counting equipment. The equipment uses the functions of geometry, magnetic detection, security line magnetic code analysis, multi-spectral image analysis and serial number identification record storage, etc. Banknotes of different denominations are counted for identification and counterfeiting. Compared with the previous ones, this counterfeit money counting instrument is much more powerful in function,...

AI Technical Summary

Problems solved by technology

[0003] (1) Poor reliability, easy to generate sparks, and its carbon brush needs to be replaced;

[0004] (2) Narrow speed range and poor load characteristics;

[0005] (3) The power density is low, and the collector ring carbon brush occupies the effective volume of the motor;

[0006] (4) The two motors operate independently, using their own control units, and there is no communication between them, so the coordinated control of the two motors cannot be realized

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