The invention discloses a door control device,
system and method suitable for a shield door and a safety door. The device comprises a
microcontroller and a drive unit. The drive unit further comprises two sets of drive modules. The
microcontroller is connected with one set of drive module of the drive unit and used for controlling an external
direct current motor. The
microcontroller is further connected with the other set of drive module of the drive unit, used for controlling the other external
direct current motor or a door head lock or used for
backup, and compatibility of the shield door and the safety door is achieved. The microcontroller outputs PWM
waves to the drive modules, and the
direct current motors are driven by the drive modules to finish the actions including forward rotation, backward rotation, acceleration, deceleration and
constant speed, or the door head lock is driven to finish the opening and closing actions. When the door control device is applied to the safety door, the two paths of direct current motors are the same in step of actions. The door control device,
system and method can be suitable for the shielding door and the safety door at the same time, the safety and reliability of the
system are improved, and meanwhile the requirement of equipment installing for space is lowered.