Fire alarm system
First Claim
1. A fire alarm system wherein a receiver polls terminal devices each have a CPU, said terminal devices including at least one of fire directors, fire sensors and repeaters, and wherein said receiver reads monitoring information called from said terminal devices or transmits control information thereto;
- wherein each of said respective terminal devices include;
a transmission signal-receiving means for receiving signals from said receiver;
a determining means for determining whether or not a polling address received by said transmission signal-receiving means coincides with a self-address of the terminal device; and
a waiting state set means for setting the CPU in the terminal device to a waiting state when a non-coincidence between said polling address and said self address is determined by said determining means.
1 Assignment
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Accused Products
Abstract
In a fire alarm system wherein a receiver polls terminal devices having CPU'"'"'s, such as fire detectors, fire sensors and repeaters, and the receiver reads monitoring information called from the terminal device or transmits control information thereto; a fire alarm system constructed so that each of said terminal devices having a CPU brings said CPU included therein into a standby status when a polling address of said receiver and an intrinsic address of said terminal device are different.
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Citations
2 Claims
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1. A fire alarm system wherein a receiver polls terminal devices each have a CPU, said terminal devices including at least one of fire directors, fire sensors and repeaters, and wherein said receiver reads monitoring information called from said terminal devices or transmits control information thereto;
- wherein each of said respective terminal devices include;
a transmission signal-receiving means for receiving signals from said receiver; a determining means for determining whether or not a polling address received by said transmission signal-receiving means coincides with a self-address of the terminal device; and a waiting state set means for setting the CPU in the terminal device to a waiting state when a non-coincidence between said polling address and said self address is determined by said determining means. - View Dependent Claims (2)
- wherein each of said respective terminal devices include;
Specification
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- Resources
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Current AssigneeNohmi Bosai Kogyo Kabushiki Kaisha
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Original AssigneeNohmi Bosai Kogyo Kabushiki Kaisha
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InventorsMorita, Toshikazu
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Primary Examiner(s)Crosland, Donnie L.
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Application NumberUS07/092,923Time in Patent Office630 DaysField of Search340/518, 340/505, 340/506, 340/508, 340/825.06-825.13, 340/825.21, 340/825.54, 340/825.52US Class Current340/518CPC Class CodesG08B 26/00 Alarm systems in which subs...
