Motor controlling system of omnibearing discretionary movable robot

The utility model relates to an all-directional automatic mobile robot motor control system comprising an upper machine, a photoelectric coded disk unit, a phase discrimination circuit and a speed measuring circuit unit. The upper machine is connected with a core processor module. An USB port of the upper machine supplies electric power to the core processor module. In addition, the core processor module is connected with a drive signal generating and measuring module. An output terminal of the drive signal generating and measuring module controls motor operation through a drive circuit. Operation signals of the motor are connected with the phase discrimination circuit and the speed measuring circuit unit through the photoelectric coded disk unit and then output to the core processor module. After being improved, the utility model can use 51 series standard single-chip as core processor thereby reducing cost and guarantee that all motor driving function can be realized and further reducing power consumption of the circuit. The power source of the entire control circuit has be simplified to be powered by one USB port, so that it can be powered by USB port of a notebook PC.