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US 7,522,636 B2Granted
System for controlling a plurality of equipments
AssigneeKabushiki Kaisha Toshiba
InventorsHirokazu Sato, Hideaki Hashimoto, Junji Ooaki, Fumio Ozaki
Life of this patent
Estimating the term…
Abstract
A main control apparatus is connected to a single signal line. A plurality of equipments is respectively connected to a multipoint line. Each multipoint line diverges from the single signal line. The main control apparatus sends a control signal to each equipment through the single signal line using a frequency band. Each equipment receives the control signal from the main control apparatus through the multipoint line using the frequency band. Each equipment is assigned a unique frequency from within the frequency band.
Claims18
A control system, comprising:
- a main control apparatus configured to connect to a single signal line;
- and
- a plurality of equipments respectively configured to connect to a multipoint line, each multipoint line being diverged from the single signal line;
- wherein
- the main control apparatus sends a control signal to the single signal line using a frequency uniquely assigned to each equipment,
- each equipment receives the control signal from the multipoint line using the frequency uniquely assigned to each equipment,
- the main control apparatus sends a synchronization notice to the single signal line using the frequency uniquely assigned to each equipment,
- each equipment waits for synchronization until a broadcast signal is received from the multipoint line after the synchronization notice is received,
- the main control apparatus sends the broadcast signal as a trigger to coincide time axes of each equipment to the single signal line using a frequency commonly assigned to each equipment, and
- each equipment receives the broadcast signal from the multipoint line using the frequency commonly assigned to each equipment.
7 more elements
A control system, comprising:
- a main control apparatus configured to connect to a single signal line;
- and
- a plurality of equipments respectively configured to connect to a multipoint line, each multipoint line being diverged from the single signal line;
- wherein
- each equipment sends a control signal to the multipoint line using a frequency uniquely assigned to each equipment,
- the main control apparatus receives the control signal from the single signal line using the frequency uniquely assigned to each equipment,
- each equipment sends an interrupt signal having a priority degree as a danger notice signal to the multipoint line using a frequency commonly assigned to each equipment,
- the main control apparatus receives the interrupt signal from the single signal line using the frequency commonly assigned to each equipment, and sends an interruption service signal to one equipment which sent the interrupt signal having the highest priority degree when a plurality of interrupt signals of the plurality of equipments are received.
5 more elements
A control system, comprising:
- a main control apparatus configured to connect to a single signal line;
- and
- a plurality of equipments respectively configured to connect to a multipoint line, each multipoint line being diverged from the single signal line;
- wherein
- the main control apparatus sends a digital signal including an address of at least one equipment to the single signal line using a frequency uniquely assigned to each equipment,
- each equipment receives the digital signal including the address of the equipment from the multipoint line using the frequency uniquely assigned to each equipment,
- the main control apparatus sends a synchronization notice to the single signal line using the frequency uniquely assigned to each equipment,
- each equipment waits for synchronization until a broadcast signal is received from the multipoint line after the synchronization notice is received,
- the main control apparatus sends the broadcast signal as a trigger to coincide time axes of each equipment to the single signal line using a frequency commonly assigned to each equipment, and
- each equipment receives the broadcast signal from the multipoint line using the frequency commonly assigned to each equipment.
7 more elements
A control system, comprising:
- a main control apparatus configured to connect to a single signal line;
- and
- a plurality of equipments respectively configured to connect to a multipoint line, each multipoint line being diverged from the single signal line, wherein
- each equipment sends a digital signal including an address of the equipment to the multipoint line using a frequency uniquely assigned to each equipment, the main control apparatus receives the digital signal from the single signal line using the frequency uniquely assigned to each equipment,
- each equipment sends an interrupt signal having a priority degree as a danger notice signal to the multipoint line using a frequency commonly assigned to each equipment,
- the main control apparatus receives the interrupt signal from the single signal line using the frequency commonly assigned to each equipment, and sends an interruption service signal to one equipment which sent the interrupt signal having the highest priority degree when a plurality of interrupt signals of the plurality of equipments are received.
3 more elements
Dependencies are inferred from the claim text.