Fire alarm system
First Claim
1. A fire alarm system comprising:
- a plurality of fire supervising or control terminals serving as fire detectors and having identification number information assigned thereto that varies depending on the type of a terminal; and
a reception unit connected to said plurality of fire supervising or control terminals;
said reception unit comprising;
a nonvolatile memory for storing therein the identification number information of said plurality of terminals connected to said reception unit;
acquisition means for acquiring identification number information from said plurality of terminals;
rewriting means for, in response to an instruction, storing the identification number information of said plurality of terminals acquired by said acquisition means in said nonvolatile memory so as to rewrite the contents of said nonvolatile memory, wherein said rewriting means comprises a mode setter for specifying a non-acquisition mode in said nonvolatile memory when the identification number information acquired by said acquisition means is stored in said nonvolatile memory in order to rewrite the contents of said nonvolatile memory; and
mode judging means for, when said reception unit is powered or reset, judging if the non-acquisition mode has been specified in said nonvolatile memory, so that it carries out fire supervision according to the identification number information stored in said nonvolatile memory when the non-acquisition mode has been specified, but allows said acquisition means to acquire identification number information from said plurality of terminals, while carrying out fire supervision according to the acquired identification number information when the non-acquisition mode has not been specified.
1 Assignment
0 Petitions
Accused Products
Abstract
For storing identification number information of terminals in a reception unit such as a fire control and indicating equipment, it is unnecessary to replace a memory with another at a factory or an installation site. Moreover, a man-made error accompanying a modification work is prevented. In a fire alarm system, a plurality of fire supervising or control terminals are connected to the reception unit. Identification number information that varies depending on the type of a terminal is assigned to the plurality of terminals. The reception unit includes an electrically rewriteable nonvolatile memory, an acquisition device, and a rewriting device. The identification number information of the plurality of connected terminals is stored in the nonvolatile memory that is electrically programmable. The acquisition device acquires identification number information from the plurality of terminals. The rewriting device stores, in response to an instruction, the identification number information of the plurality of terminals, which is acquired by the acquisition device, in the nonvolatile memory so as to thus rewrite the contents of the nonvolatile memory.
27 Citations
34 Claims
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1. A fire alarm system comprising:
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a plurality of fire supervising or control terminals serving as fire detectors and having identification number information assigned thereto that varies depending on the type of a terminal; and
a reception unit connected to said plurality of fire supervising or control terminals;
said reception unit comprising;
a nonvolatile memory for storing therein the identification number information of said plurality of terminals connected to said reception unit;
acquisition means for acquiring identification number information from said plurality of terminals;
rewriting means for, in response to an instruction, storing the identification number information of said plurality of terminals acquired by said acquisition means in said nonvolatile memory so as to rewrite the contents of said nonvolatile memory, wherein said rewriting means comprises a mode setter for specifying a non-acquisition mode in said nonvolatile memory when the identification number information acquired by said acquisition means is stored in said nonvolatile memory in order to rewrite the contents of said nonvolatile memory; and
mode judging means for, when said reception unit is powered or reset, judging if the non-acquisition mode has been specified in said nonvolatile memory, so that it carries out fire supervision according to the identification number information stored in said nonvolatile memory when the non-acquisition mode has been specified, but allows said acquisition means to acquire identification number information from said plurality of terminals, while carrying out fire supervision according to the acquired identification number information when the non-acquisition mode has not been specified. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A fire alarm system comprising:
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a plurality of fire supervising or control terminals serving as fire detectors and having identification number information assigned thereto that varies depending on the type of a terminal; and
a reception unit connected to said plurality of fire supervising or control terminals;
said reception unit comprising;
a nonvolatile memory for storing therein the identification number information of said plurality of terminals connected to said reception unit;
acquisition means for acquiring identification number information from said plurality of terminals; and
supervision instructing means for instructing whether fire supervision should be performed based on the contents of said nonvolatile memory or fire supervision should be performed by acquiring identification number information from said plurality of terminals using said acquisition means;
wherein during the time said supervision instructing means instructs that fire supervision should be performed based on the contents of said nonvolatile memory, said reception unit checks the contents of said nonvolatile memory when said reception unit is powered or reset, acquires identification number information from said plurality of terminals through said acquisition means if the contents of said nonvolatile memory are abnormal, and performs fire supervision according to the identification number information acquired by said acquisition means. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A fire alarm system comprising:
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a plurality of fire supervising or control terminals serving as fire detectors and having identification number information assigned thereto that varies depending on the type of a terminal; and
a reception unit connected to said plurality of fire supervising or control terminals;
said reception unit comprising;
a nonvolatile memory operable to store therein the identification number information of said plurality of terminals connected to said reception unit;
acquisition device operable to acquire identification number information from said plurality of terminals;
rewriting device operable to, in response to an instruction, store the identification number information of said plurality of terminals acquired by said acquisition device in said nonvolatile memory so as to rewrite the contents of said nonvolatile memory, wherein said rewriting device comprises a mode setter operable to specify a non-acquisition mode in said nonvolatile memory when the identification number information acquired by said acquisition device is stored in said nonvolatile memory in order to rewrite the contents of said nonvolatile memory; and
mode judging device operable to, when said reception unit is powered or reset, judge if the non-acquisition mode has been specified in said nonvolatile memory, so that it carries out fire supervision according to the identification number information stored in said nonvolatile memory when the non-acquisition mode has been specified, but allows said acquisition device to acquire identification number information from said plurality of terminals, while carrying out fire supervision according to the acquired identification number information when the non-acquisition mode has not been specified. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. A fire alarm system comprising:
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a plurality of fire supervising or control terminals serving as fire detectors and having identification number information assigned thereto that varies depending on the type of a terminal; and
a reception unit connected to said plurality of fire supervising or control terminals;
said reception unit comprising;
a nonvolatile memory operable to store therein the identification number information of said plurality of terminals connected to said reception unit;
acquisition device operable to acquire identification number information from said plurality of terminals; and
supervision instructing device operable to instruct whether fire supervision should be performed based on the contents of said nonvolatile memory or fire supervision should be performed by acquiring identification number information from said plurality of terminals using said acquisition device;
wherein during the time said supervision instructing device instructs that fire supervision should be performed based on the contents of said nonvolatile memory, said reception unit is operable to check the contents of said nonvolatile memory when said reception unit is powered or reset, acquire identification number information from said plurality of terminals through said acquisition device if the contents of said nonvolatile memory are abnormal, and perform fire supervision according to the identification number information acquired by said acquisition device. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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Specification