JPH0713083U - Alarm - Google Patents

Abstract

(57) [Summary] [Purpose] To facilitate the operation of adjusting the volume and / or tone of an alarm emitted from an alarm installed in a place where humans cannot reach, such as a high place. To [Arrangement] The alarm device 1 is provided with a wireless receiver 6, and a control circuit 7 is controlled by a signal from a wirelessly operated wireless transmitter to adjust the volume and / or tone of an alarm emitted from a speaker 5. [Effect] For example, it becomes possible to adjust the volume and / or tone color of the alarm issued from the alarm device from an arbitrary place according to the ambient noise level which varies depending on the time zone.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an alarm device which is adapted to issue an alarm at least by voice (including electronic sound), and more particularly to improvement of an operating means for adjusting the volume and / or tone of the alarm.

[0002]

[Prior art]

 Alarms are often installed in factories and other places to give timely sound alerts. Such alarms are usually installed at high altitudes so as to output audio downwards. This is because it is necessary to illuminate the alarm device with certainty to enable reliable transmission of the alarm to a predetermined notification area, and to avoid inadvertent contact or collision of people or conveyed items. Is.

[0003]

[Problems to be solved by the device]

 By the way, the volume of the alarm should be determined according to the noise level in the notification area. That is, a relatively loud volume is required in a place with a high noise level, while a relatively low volume is sufficient in a place with a low noise level. Alarms usually have a built-in volume control, which adjusts the volume to suit the noise level in the environment.

However, the place where the alarm is installed is not limited to the one where the noise level is constant. For example, the noise level may vary depending on the time of day. More specifically, for example, in a factory, the noise level changes depending on the time of day, such as being quiet in the morning but relatively quiet in the afternoon and being much quieter at night than in the morning.

When using the alarm device under the above-mentioned situation, it is desirable to adjust the volume of the alarm according to the ambient noise level. This is because the alarm is rather noisy outside the alarm area. Therefore, as mentioned above, it is only necessary to operate the volume controller built into the alarm according to the fluctuation of the ambient noise level, but as mentioned above, when the alarm is installed at a high place. Therefore, the operation of the volume control is very cumbersome and, in some cases, dangerous.

It should be noted that although the above description has been concerned with the volume of the alarm, the same can be said for the tone color of the alarm. That is, when the ambient noise level decreases, the same effect as reducing the volume can be obtained by reducing the timbre, that is, changing the timbre to a softer one.

Therefore, an object of the present invention is to make it possible to more easily perform an operation for adjusting the volume and / or the timbre of an alarm emitted from an alarm.

[0008]

[Means for Solving the Problems]

 The present invention is directed to an alarm device which is designed to emit at least an audio alarm, and in order to solve the above-mentioned technical problem, a wireless receiver which receives a signal transmitted from a wireless transmitter is provided. , And a control circuit for adjusting the volume and / or tone of the alarm according to the signal received by the wireless receiver.

As described above, the alarm device according to the present invention is used in combination with the wireless transmitter.

[0010]

[Action]

 The alarm device according to the present invention can adjust the volume and / or tone of the alarm by a wireless transmitter from any place apart from the alarm device.

[0011]

[Effect of device]

 Therefore, according to the present invention, even if the alarm device is installed in a place where it is difficult for humans to reach, it is possible to remotely adjust the alarm volume and / or tone. Therefore, the troublesome operation for adjusting the alarm volume and / or tone color is eliminated. As a result, it is easier to use the alarm to prevent noise pollution to the surrounding environment.

[0012]

【Example】

 FIG. 1 is a perspective view showing an appearance of an alarm device 1 according to an embodiment of the present invention, and also shows a remote controller 2. FIG. 2 is a block diagram schematically showing the internal structure of the alarm device 1 shown in FIG.

The alarm device 1 has the form of a horn type loudspeaker as a whole, and includes a horn portion 3 and a central shaft portion 4. A speaker 5 for outputting voice is built in the central shaft portion 4.

In such an alarm device 1, for example, a wireless receiver 6 is attached to the tip of the central shaft portion 4. The mounting position of the wireless receiver 6 can be changed arbitrarily. In addition to the speaker 5 described above, a control circuit 7, a sound source circuit 8 and an amplifier 9 for receiving a signal from the wireless receiver 6 are built in the alarm device 1. Further, power is supplied to the alarm device 1 from the outside.

In the above-described configuration, in the normal state, a signal sound provided by the sound source circuit 8 and / or a voice signal such as a message is amplified by the amplifier 9 and output from the speaker 5.

On the other hand, when it is desired to adjust the volume and / or tone color of the above-mentioned voice alarm, the remote controller 2 is operated. The remote controller 2 includes a wireless transmitter 10, and a signal transmitted from the wireless transmitter 10 is received by the wireless receiver 6. The radio receiver 6 controls the control circuit 7, which controls the amplifier 9 via line 11 to adjust the volume output from the speaker 5. The control circuit 7 also controls the tone generator circuit 8 to adjust the tone color of the alarm output from the speaker 5 via the line 12.

As described above, by operating the remote controller 2, it is possible to increase or decrease the volume and timbre of the alarm emitted from the alarm device 1. Tone reduction means changing the tone color to a softer one.

In the above-described embodiment, the control circuit 7 adjusts both the sound volume and the tone color of the alarm, but it may adjust only either the sound volume or the tone color.

Further, although the above-described alarm device 1 exclusively issues an alarm by voice, it may be configured to issue an alarm by light in addition to voice.

When a plurality of alarm devices 1 are installed and the volume and / or tone level to be adjusted for each alarm device 1 are different, the signal transmitted from the wireless transmitter 10 is: A relatively directional signal such as infrared or ultrasound is desired. Thus, if the remote controller 2 is operated aiming at a specific alarm device 1, the volume and / or tone color of only the alarm device 1 can be adjusted.

[Brief description of drawings]

FIG. 1 is a perspective view showing an external appearance of an alarm device 1 according to an embodiment of the present invention, and also shows a remote controller 2.

FIG. 2 is a block diagram schematically showing the internal structure of the alarm device 1 shown in FIG.

[Explanation of symbols]

 1 Alarm 2 Remote Controller 5 Speaker 6 Radio Receiver 7 Control Circuit 8 Sound Source Circuit 9 Amplifier 10 Radio Transmitter

Claims (2)

[Scope of utility model registration request] 1. An alarm device which is adapted to issue at least an audio alarm, wherein a radio receiver for receiving a signal transmitted from a radio transmitter, and a volume of the alarm by a signal received by the radio receiver. And / or a control circuit for adjusting a timbre. 2. A combination of the alarm device according to claim 1 and a wireless transmitter.