JP2968601B2 - Alarm detector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an alarm detector, and more particularly, to a detector for detecting that a fire alarm has been activated.

[0002]

2. Description of the Related Art Recently, security related to disaster prevention, crime prevention, etc. has been regarded as important, and various proposals have been made.
There is no connection with the existing disaster alarms, and the mainstream is to newly build the entire system. For example, when constructing a security system against fire, a wireless transmitter is built in the fire detector, a wireless signal from this wireless transmitter is received by a wireless receiver, and the central monitoring center etc. is connected via a telephone line. The fire alarm is to be reported, and it is necessary to use a fire alarm which is completely different from the existing fire alarm, in other words, has a built-in wireless transmitter. for that reason,
When trying to build a security system in an existing facility (building), the existing fire detector must be replaced with a new one, which is not only difficult to construct but also expensive. there were.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and more particularly, to construct a security system by effectively combining with an existing alarm, for example, a fire alarm and a gas leak alarm. The purpose of the present invention is to provide an alarm detector that can be used.

[0004]

To achieve the above object, the present invention provides (1)
An alarm detector that is disposed near the disaster detector that generates an alarm by a buzzer or the like and detects that the disaster detector is operating and is generating an alarm, wherein the detector is A sensor for detecting a sound generated from the disaster detector,
A wireless transmitter that generates a wireless signal when the sensor is activated, or (2) the disaster detector is arranged near a disaster detector that generates an alarm by sounding a buzzer or the like and operates. An alarm detector for detecting that an alarm is being generated, the detector detecting a vibration generated from the disaster detector, and generating a radio signal when the sensor is activated. It has a wireless transmitter, or (3) it is arranged near a disaster detector that generates an alarm by flashing light by flashing a light bulb or the like, and the disaster detector operates to generate an alarm. An alarm detector for detecting the flashing of light emitted from the disaster detector, and a wireless transmitter for generating a wireless signal when the sensor is activated. It is characterized by. Hereinafter, a description will be given based on an example of the present invention.

FIG. 2 is a block diagram for explaining an example of the prior art of a security system to which the present invention is applied.
In the figure, 1-4 are various transmitters, 10 is a relay, 20 is a security board (receiver), 20 is a telephone line, 40 is an information center, for example, 1 is a pendant receiver, 2 is a fire with a transmitter. Alarm device 3, gas leak alarm device with transmitter, 4
In the D transmitter, the radio signals from these transmitters 1 to 4 are received by the security panel through the relay, and
0 to the information center 40. Therefore, as described above, the fire alarm, the gas leak alarm, and the like have a built-in transmitter therein, and cannot use an existing alarm. According to the present invention, it is possible to construct a security system by effectively combining with an existing alarm which does not include a transmitter as described above.

FIG. 1 is a diagram showing an example of a case where a security system is constructed by using an alarm detector according to the present invention. In FIG. 1, parts having the same functions as those of the prior art shown in FIG. Reference numbers. In FIG. 1, 5
Reference numeral 0 denotes an alarm detector according to the present invention. By installing and using the alarm detector 50 near the alarms 2a and 3a, a fire alarm 2a, a gas leak alarm 3a and the like with a built-in transmitter can be used. It is possible to use existing existing alarms as they are without using them. (Note that in FIG. 1, these alarms are not shown in FIG. 2 to clearly show that they do not include a transmitter. Use different symbols 2a and 3a). These alarm detectors 50 detect that the fire alarm 2a, the gas leak alarm 3a, etc. have been activated. For example, when the alarms of these alarms 2a, 3a are based on the sounding of a buzzer or the like, It has a built-in sensor for detecting these ringing sounds and a wireless transmitter driven by the sensor, thereby performing the same operation as an alarm device having a built-in wireless transmitter. However, in this case, that is, in the case of a buzzer alarm,
Since the buzzer vibrates, the vibration of the buzzer can be detected to detect that the alarm is operating. In these cases, it is, of course, necessary to activate the wireless transmitter after the alarm has been activated for a predetermined period of time. Otherwise, malfunctions due to external noise or the like will increase. However, in order to reduce this malfunction difference, if both the ringing sound detection sensor and the vibration detection sensor as described above are provided, and the wireless transmitter is operated by the logical product thereof, malfunction is minimized. Can be reduced. Further, when the alarm device is a device such as an electric lamp that blinks light, an optical sensor that detects the blinking of the light may be used as a sensor of the alarm detectors 2a and 3a. It can be easily understood that any desired one can be selected and used in accordance with the above method.

[0007]

As is apparent from the above description, according to the present invention, a security system can be constructed at a low cost and with a small amount of work by effectively utilizing an existing alarm device.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of a case where a security system is constructed using an alarm detector according to the present invention.

FIG. 2 is a diagram showing an example of a security system currently generally used.

[Explanation of symbols]

1 ... Pendant transmitter, 2 ... Fire alarm with transmitter, 2a
... Fire alarm without transmitter, 3 ... Gas leak alarm with transmitter, 3a ... Gas leak alarm without transmitter, 4 ... I. D transmitter, 10 ... repeater, 20 ... security board (receiver),
Reference numeral 30: telephone line, 40: information center, 50: alarm detector.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Satoshi Ikeya 1-4-12 Tokiwacho, Shizuoka-shi, Shizuoka TOKAI Co., Ltd. (72) Inventor Mitsunori Sano 6-16-10 Minamioi, Shinagawa-ku, Tokyo RICOH (56) References JP-A 1-175096 (JP, A) JP-A 62-140197 (JP, A) JP-A 55-19204 (JP, U) (58) Fields surveyed ( Int.Cl. ⁶ , DB name) H04M 11/00-11/10 G08B 19/00-21/00 G08B 23/00-31/00

Claims (3)

(57) [Claims] 1. An alarm detector which is disposed near a disaster detector which generates an alarm by a sound of a buzzer or the like, and detects that the disaster detector operates to generate an alarm. An alarm detector comprising: a sensor for detecting a ringing sound generated from the disaster detector; and a radio transmitter for generating a radio signal when the sensor is activated. 2. An alarm detector that is disposed near a disaster detector that generates an alarm based on a sound of a buzzer or the like and detects that the disaster detector operates to generate an alarm. An alarm detector comprising: a sensor for detecting vibrations generated from the disaster detector; and a radio transmitter for generating a radio signal when the sensor is activated. 3. An alarm detector that is disposed near a disaster detector that generates an alarm when a light blinks due to the flashing of a light bulb or the like and detects that the disaster detector operates and generates an alarm. Wherein the alarm detector has a sensor for detecting the flickering of light emitted from the disaster detector, and a wireless transmitter for generating a wireless signal when the sensor is activated. vessel.