JPH0384597A - Alarm buzzer output system - Google Patents

Abstract

PURPOSE:To securely generate an alarm in a pleasant state at all time by adjusting the sound volume of a buzzer sound according to the output of a noise detection part which detects ambient noise. CONSTITUTION:A buzzer sound generation part 3 generates a buzzer sound of constant level by receiving an instruction from an alarm input part 1 and the noise detection part 2 detects the ambient noise level and sends its detection signal to a sound volume adjustment part 4. The sound volume adjustment part 4 adjusts the sound volume of the buzzer sound to a specific quantity larger than the sound volume of the noise according to the detection signal from the noise detection part 2 and outputs the buzzer sound to a speaker 5. Consequently, the alarm can clearly and accurately be generated without any feeling of physical disorder.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an alarm buzzer output method for an alarm device, and in particular to a system that enables the volume of an alarm buzzer to be automatically changed according to the level of surrounding noise. Regarding the alarm buzzer output method.

[Prior Art] Conventionally, the alarm buzzer output of this type of alarm device was set to a constant volume, and the output was always constant regardless of the level of surrounding noise.

[Problems to be solved] In the alarm buzzer output method of the conventional alarm device described above, the alarm buzzer output is set at a constant volume, so it is difficult to hear the alarm buzzer sound when the surrounding noise is large, and it is difficult to hear the alarm buzzer sound when the surrounding area is quiet. At that time, there was a problem that the alarm buzzer sound was too loud.

The present invention has been made in view of the above problems, and is provided with a noise detection unit that detects ambient noise and a volume adjustment unit that adjusts the volume of the buzzer sound according to the output of this noise detection unit. To provide an alarm buzzer output method capable of outputting an alarm buzzer sound that is louder than the volume of noise by a predetermined amount, and always providing a reliable alarm in a comfortable condition.

[Means for Solving the Problems] The alarm buzzer output method of the present invention includes a buzzer sound generator that generates a buzzer sound at a certain level when an alarm is input, a noise detector that detects surrounding noise, and this noise detector. and a volume adjustment section that adjusts the volume of the buzzer sound according to the output of the buzzer.

[Embodiment] An embodiment of the alarm buzzer output system of the present invention will be described with reference to FIG.

FIG. 1 is a block diagram of the alarm buzzer output method. This alarm buzzer output method uses the alarm input section l.

Buzzer sound generator 3. A volume adjustment section 4 and a speaker 5 are connected in series, and a noise detection section 2 is connected to the volume adjustment section 4.

The alarm input section 1 is a section that detects an alarm input state from the outside, and instructs the buzzer sound generating section 3 to generate a buzzer sound when there is an alarm input.

The buzzer sound generating section 3 receives an instruction from the alarm input section 1 and generates a buzzer sound at a certain level. The noise detection section 2 detects the ambient noise level and sends a detection signal to the volume adjustment section 4. The volume control unit 4 adjusts the volume of the buzzer sound in response to the detection signal from the noise detection unit 2 so that it is larger than the noise volume by a predetermined amount, and outputs the buzzer sound to the speaker 5 to generate an alarm such as 0 or more. To output a buzzer sound using the buzzer output method, the alarm input section 1 detects an alarm input and instructs the buzzer sound generation section 3 to generate a buzzer sound. A sound is generated and output to the volume control section 4. The volume adjustment section 4 inputs the buzzer sound from the buzzer sound generation section 3 and the noise level detection signal from the noise detection section 2, adjusts the buzzer sound so that it is a predetermined amount louder than the noise level, and then Outputs the buzzer sound to the speaker.

In this way, the buzzer sound is output from the speaker 5,
If the ambient noise level changes (1) For example, if the noise level becomes larger, the noise detection section 2 outputs this increased noise level to the volume adjustment section 4, and the volume adjustment section 4 outputs the increased noise level. The buzzer sound is adjusted to be louder by the level and output to the speaker 5.

As described above, the alarm buzzer output method of the present invention automatically changes the buzzer sound depending on the level of surrounding noise.

[Effects of the Invention] As explained above, the present invention provides a benefit to the user of the alarm device by automatically changing the alarm buzzer sound so that it always becomes louder by a certain level according to the level of surrounding noise. This has the effect of making it possible to clearly and accurately notify a warning without causing discomfort, regardless of the level of surrounding noise.

[Brief explanation of drawings]

FIG. 1 shows a block diagram illustrating one embodiment of the present invention. Alarm input section Noise detection section Buzzer sound generator Volume control section speaker

Claims (1)

[Claims] A buzzer sound generation section that generates a certain level of buzzer sound when an alarm is input, a noise detection section that detects surrounding noise, and a volume adjustment section that adjusts the volume of the buzzer sound according to the output of this noise detection section. An alarm buzzer output method characterized by comprising: