Control system, control method and extension board
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorTakayoshi FUJITA
Life of this patent
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Abstract
A control system, includes a master control device configured to control a first controlled object based on time information output from a first clock unit, and a slave control device connected to the master control device via a network and configured to control a second controlled object different from the first controlled object based on control information transmitted from the master control device and time information output from a second clock unit. The time information of the first clock unit and the time information of the second clock unit are time-synchronized.
Claims8
A control system, comprising:
- a master control device configured to control a first controlled object based on time information output from a first clock unit;
- and
- a slave control device connected to the master control device via a network and configured to control a second controlled object different from the first controlled object based on control information transmitted from the master control device and time information output from a second clock unit,
- wherein the time information of the first clock unit and the time information of the second clock unit are time-synchronized.
A control method to control a first controlled object by a master control device and control a second controlled object different from the first controlled object by a slave control device connected to the master control device via a network, comprising:
- controlling the first controlled object by the master control device based on time information output from a first clock unit;
- transmitting control information from the master control device;
- controlling the second controlled object based on the control information transmitted from the master control device and time information output from a second clock unit;
- and
- time-synchronizing the time information of the first clock unit and the time information of the second clock unit.
An extension board freely attachable to a master control device to control a first controlled object, comprising:
- a first clock unit configured to output time information to control the first controlled object;
- a communication unit configured to transmit control information to control a second controlled object different from the first controlled object by a slave control device connected to the master control device via a network to the slave control device;
- and
- a time synchronization unit configured to time-synchronize the time information of the first clock unit and time information of a second clock unit provided in the slave control device and configured to output the time information to control the second controlled object.
Dependencies are inferred from the claim text.