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US 8,423,808 B2Granted
Control system for switching a control device to a power saving mode using a remote terminal
AssigneeYokogawa Electric Corporation
InventorYuuji Takabayashi
Life of this patent
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Abstract
A control device includes a communication unit which has a switch function of switching the control device into an energy saving mode, the communication unit communicating with an upper terminal via a first network; and a mode control unit which controls switching the communication unit into the power saving mode, the control being made using a network control library which is generated by a programming language.
Claims6
A control device comprising:
- a communication unit which has a switch function of switching the control device into a power saving mode, the communication unit communicating with an upper terminal via a first network;
- a mode control unit which controls switching the communication unit into the power saving mode, the control being made using a network control library which is generated by a programming language;
- a memory unit which stores a monitoring time and a frame classification as a mode control parameter, the monitoring time being a time for monitoring a transmission-reception frame transmitted and received by the communication unit, the frame classification designating a group of frames which are subject to the monitoring;
- and
- a transmission-reception frame information management unit which manages a frame-related information that includes the monitoring time and the frame classification,
- wherein the network control library is a software component which has a function of outputting a value which is necessary to control switching the control device into the power saving mode, the control being made according to at least one input value,
- the mode control unit comprises:
- a remote instruction detection unit which detects the input value which is included in a remote instruction given by a remote monitoring terminal via a second network which is different from the first network, and the remote instruction detection unit outputting an output value as a mode control signal, the output value being obtained from the network control library based on the detected input value;
- and
- a power saving control unit which controls switching the control device into the power saving mode, the control being made based on the mode control signal,
- the power saving unit determines whether or not in the monitoring time there is performed at least one of transmission and reception of the transmission-reception frame classified in the group of frames subject to the monitoring, the determination being made based on the frame-related information, and
- the power saving unit selects the power saving mode if in the monitoring time there is not performed the at least one of transmission and reception of the transmission-reception frame.
9 more elements
A control device comprising:
- a communication unit which has a switch function of switching the control device into a power saving mode, the communication unit communicating with an upper terminal via a first network;
- and
- a mode control unit which controls switching the communication unit into the power saving mode, the control being made using a network control library which is generated by a programming language,
- wherein the network control library is a software component which has a function of outputting a value which is necessary to control switching the control device into the power saving mode, the control being made according to at least one input value,
- the mode control unit comprises:
- a remote instruction detection unit which detects the input value which is included in a remote instruction given by a remote monitoring terminal via a second network which is different from the first network, and the remote instruction detection unit outputting an output value as a mode control signal, the output value being obtained from the network control library based on the detected input value;
- and
- a power saving control unit which controls switching the control device into the power saving mode, the control being made based on the mode control signal, and
- the power saving unit switches the power saving mode to an OFF-state when the power saving unit receives a request of transmitting the transmission frame from a communication application of the control device.
6 more elements
A control device comprising:
- a communication unit which has a switch function of switching the control device into an a power saving mode, the communication unit communicating with an upper terminal via a first network;
- a mode control unit which controls switching the communication unit into the power saving mode, the control being made using a network control library which is generated by a programming language, and
- a manually-operable switch,
- wherein the network control library is a software component which has a function of outputting a value which is necessary to control switching the control device into the power saving mode, the control being made according to at least one input value,
- the mode control unit comprises:
- a remote instruction detection unit which detects the input value which is included in a remote instruction given by a remote monitoring terminal via a second network which is different from the first network, and the remote instruction detection unit outputting an output value as a mode control signal, the output value being obtained from the network control library based on the detected input value;
- and
- a power saving control unit which controls switching the control device into the power saving mode, the control being made based on the mode control signal, and
- the power saving control unit controls switching the power saving mode between the ON-state and the OFF-state, the control being made by ON-OFF operations of the switch.
6 more elements
A control system comprising:
- a control device;
- a control object device to be controlled by the control device;
- an upper terminal that is capable of communication to the control device through a first network;
- a memory unit which stores a monitoring time and a frame classification as a mode control parameter, the monitoring time being a time for monitoring a transmission-reception frame transmitted and received by the communication unit, the frame classification designating a group of frames which are subject to the monitoring;
- and
- a transmission-reception frame information management unit which manages a frame-related information that includes the monitoring time and the frame classification,
- wherein the control device comprises:
- a communication unit which has a switch function of switching the control device into an a power saving mode, the communication unit communicating with an upper terminal via a first network;
- and
- a mode control unit which controls switching the communication unit into the power saving mode, the control being made using a network control library which is generated by a programming language,
- the network control library is a software component which has a function of outputting a value which is necessary to control switching the control device into the power saving mode, the control being made according to at least one input value,
- the mode control unit comprises:
- a remote instruction detection unit which detects the input value which is included in a remote instruction given by a remote monitoring terminal via a second network which is different from the first network, and the remote instruction detection unit outputting an output value as a mode control signal, the output value being obtained from the network control library based on the detected input value;
- and
- a power saving control unit which controls switching the control device into the power saving mode, the control being made based on the mode control signal,
- the power saving unit determines whether or not in the monitoring time there is performed at least one of transmission and reception of the transmission-reception frame classified in the group of frames subject to the monitoring, the determination being made based on the frame-related information, and
- the power saving unit selects the power saving mode if in the monitoring time there is not performed the at least one of transmission and reception of the transmission-reception frame.
14 more elements
A control system comprising:
- a control device;
- a control object device to be controlled by the control device;
- and
- an upper terminal that is capable of communication to the control device through a first network,
- wherein the control device comprises:
- a communication unit which has a switch function of switching the control device into an a power saving mode, the communication unit communicating with an upper terminal via a first network;
- and
- a mode control unit which controls switching the communication unit into the power saving mode, the control being made using a network control library which is generated by a programming language,
- the network control library is a software component which has a function of outputting a value which is necessary to control switching the control device into the power saving mode, the control being made according to at least one input value,
- the mode control unit comprises:
- a remote instruction detection unit which detects the input value which is included in a remote instruction given by a remote monitoring terminal via a second network which is different from the first network, and the remote instruction detection unit outputting an output value as a mode control signal, the output value being obtained from the network control library based on the detected input value;
- and
- a power saving control unit which controls switching the control device into the power saving mode, the control being made based on the mode control signal, and
- the power saving unit switches the power saving mode to an OFF-state when the power saving unit receives a request of transmitting the transmission frame from a communication application of the control device.
11 more elements
A control system comprising:
- a manually-operable switch,
- a control device;
- a control object device to be controlled by the control device;
- and
- an upper terminal that is capable of communication to the control device through a first network,
- wherein the control device comprises:
- a communication unit which has a switch function of switching the control device into an a power saving mode, the communication unit communicating with an upper terminal via a first network;
- and
- a mode control unit which controls switching the communication unit into the power saving mode, the control being made using a network control library which is generated by a programming language,
- the network control library is a software component which has a function of outputting a value which is necessary to control switching the control device into the power saving mode, the control being made according to at least one input value,
- the mode control unit comprises;
- a remote instruction detection unit which detects the input value which is included in a remote instruction given by a remote monitoring terminal via a second network which is different from the first network, and the remote instruction detection unit outputting an output value as a mode control signal, the output value being obtained from the network control library based on the detected input value;
- and
- a power saving control unit which controls switching the control device into the power saving mode, the control being made based on the mode control signal, and
- the power saving control unit controls switching the power saving mode between the ON-state and the OFF-state, the control being made by ON-OFF operations of the switch.
12 more elements
Dependencies are inferred from the claim text.