FIRE-PREVENTING TERMINAL DEVICE

• US 20110080295A1
• Filed: 02/27/2009
• Published: 04/07/2011
• Est. Priority Date: 03/14/2008
• Status: Abandoned Application

• Current Assignee: Hochiki Corporation
• Original Assignee: Hochiki Corporation
• Inventors: Nakamura, Yoshio
• Application Number:
  US12/922,381
• Publication Number:
  US 20110080295A1
• Time in Patent Office: Days
• US Class Current: 340/577
• CPC Class Codes: G08B 25/009 Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range
• CPC Class Codes: G08B 25/10 using wireless transmission systems G08B25/009 takes precedence
• CPC Class Codes: G08B 7/06 using electric transmission , e.g. involving audible and visible signalling through the use of sound and light sources

Abstract

To provide a fire-preventing terminal device that can eliminate the need to newly lay a power line and a signal line and can avoid problems caused by battery driving. Display lights 10 provided in a fire-preventing area each include a display unit that transmits fire-preventing information in the fire-preventing area to outside, and an antenna that relays a signal transmitted between fire sensors 1 and receiving relays 2 placed in the fire-preventing area, and transmits a signal wirelessly transmitted from the fire sensors 1 to the receiving relays 2.

Claims

1. A fire-preventing terminal device installed in a fire-preventing area, the device comprising:

a fire-preventing-information transmitting unit that transmits fire-preventing information in the fire-preventing area to outside of the fire-preventing terminal device; and

a receiving relay unit that relays a signal between a plurality of communicating devices installed in the fire-preventing area, and receives a signal wirelessly transmitted from a part of the communicating devices and wirelessly or wiredly transmits the received signal to another part of the communicating devices.

2. The fire-preventing terminal device according to claim 1, wherein

the fire-preventing-information transmitting unit comprises:

a terminal unit that performs input or output of information to or from outside of the fire-preventing terminal device; and

a device body that accommodates therein a portion other than the terminal unit of the fire-preventing-information transmitting unit, and

the receiving relay unit is placed within the terminal unit, and the terminal unit is detachable from the device body.

3. The fire-preventing terminal device according to claim 1, wherein

the fire-preventing-information transmitting unit comprises a device body, and a nonmetallic cover that protrudes outside from the device body,

the receiving relay unit comprises an antenna that receives or transmits a wireless signal from or to the communicating devices, and

the antenna is placed within the nonmetallic cover.

4. The fire-preventing terminal device according to claim 1, wherein the receiving relay unit comprises a wireless-signal-abnormality notifying unit that, when a wireless signal received from the communicating device has strength equal to or lower than a predetermined threshold, transmits abnormality of the wireless signal to outside of the fire-preventing terminal device.

5. The fire-preventing terminal device according to claim 1, comprising a frequency setting unit that sets a frequency of a wireless signal relayed by the receiving relay unit.