Abstract: A control system includes a factory system to control an actuator, and a learning system. The learning system extracts records for machine learning associated with the actuator from the factory system via a network, and generates an estimation model for estimating a condition of the actuator by machine learning using the records. The factory system includes a plurality of nodes including a control device to control the actuator, and a readable data construction device connected to the learning system via the network. The readable data construction device acquires data items associated with the actuator from at least one of the nodes other than the readable data construction device, and constructs readable data which is readable from the learning system. The readable data includes the data items associated with the actuator, and the learning system extracts the records from the readable data.

Abstract: An electric vacuum cleaner includes an electric blower, a driver for driving the electric blower, a determination controller for controlling the electric power supply to the electric blower by transmitting a signal to the driver, and a dust amount sensor for sensing the amounts of dusts of different sizes. The determination controller controls the electric power supply to the electric blower based on the amounts of dusts of the different sizes sensed by the dust amount sensor.

Abstract: A vacuum cleaner including an electric blower for generating suction air, a collecting unit for collecting dust contained in the suction air, a dust removing unit for removing dust adhered to the collecting unit, and a dust removing stop unit for stopping an operation of the dust removing unit. The dust removing stop unit stops the operation of the dust removing unit in response to a user's selection or an operation mode of the vacuum cleaner, thereby saving a power consumption of the dust removing unit.

Abstract: A vacuum cleaner including an electric blower for generating suction air, a collecting unit for collecting dust contained in the suction air, a dust removing unit for removing dust adhered to the collecting unit, and a dust removing stop unit for stopping an operation of the dust removing unit. The dust removing stop unit stops the operation of the dust removing unit in response to a user's selection or an operation mode of the vacuum cleaner, thereby saving a power consumption of the dust removing unit.