JPS61285597A - Alarm - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an alarm device that is used when an anti-theft device detects an intruder.

[Background technology]

With conventional theft prevention devices, when the presence of an intruder is detected, the device alerts the surrounding area of the intrusion using visible light, sound, radio waves, etc., thereby preventing theft. I was trying to prevent it. To give a concrete example,
Anti-theft devices installed in automobiles use methods such as sounding the horn, flashing headlights, or notifying the user via radio communication. In addition, in service industries such as banks, which provide busy BGM and TV images for customers, the speakers of these audio equipment and the alarms of anti-theft devices are separately provided, which is costly. Not only does this increase the noise level, but it also impedes the effective use of space.Furthermore, even when an alarm sounds, the audio from the audio equipment mentioned above is output, so in some cases there is a possibility that the alarm may be misheard. There was a fear that the purpose of warning could not be achieved.

In addition to the drawbacks pointed out above, the above-mentioned anti-theft device also includes the following problems. Even if the intruder did not know that an alarm was being issued to the outside, and the first person or third party found out, they would not take any measures for fear of being harmed by the intruder. As a result, theft may not be prevented, or even if the intruder learns that the alarm has been activated, if the intruder is accustomed to the alarm of the anti-theft device, the intimidation effect is weak and the theft may occur. The problem is that it is not possible to completely eliminate damage.

[Purpose of the invention]

The present invention has been made in order to solve the above-mentioned problems, and the main purpose of the present invention is to intimidate intruders by using a speaker installed in an audio device, rather than providing a dedicated speaker for an anti-theft device. To provide an alarm device that actively drives away an intruder by emitting an alarm sound not to the outside but to the intruder.

[Disclosure of the invention]

In order to achieve the above object, the present invention has a configuration of an alarm device including a speaker of an audio device, a sensor for detecting movement of an object, an operator for activating this sensor, and a set of the operator. and alarm generating means for driving the speaker in response to a detection signal generated by the sensor when the sensor is in a state of alarm.

Example 1 Example 1 of the present invention is shown in FIG. The operator (1) detects the operating state of a sensor (2) such as an ultrasonic sensor that detects the movement of an object, and the signal input to a speaker (5) as an audio output of an audio device such as a radio (3). The user can select either the alarm signal generation circuit (4) or the alarm signal generation circuit (4). Alarm signal generation circuit (41#:t, above sensor (2
) detects a moving object and issues a detection signal, it drives the speaker (5) to generate an alarm. The operation of each part will be explained below based on Figure @1. First, when the operator (1) is in the OFF state, the power supply voltage VCC is not applied to the sensor (2), and the sensor (21Fi) does not operate, but the inverter's input (-0 becomes low level, so the output Voltage (0
) becomes high level. Therefore, the transistor (B) is in the OFF state, and the audio output signal of the radio (3) is input to the speaker h (5), but since the sensor (2) is not in the operating state, the alarm signal generation circuit ( There is no input from 4),
The speaker (5) outputs only the audio output of the radio (:I). Next, when the controller (1) is suddenly turned on,
Power supply voltage vcc is supplied to the sensor (2), and the sensor (2)
) is activated. On the other hand, since the input voltage of the inverter (8) is at a high level, the output voltage (0) #:
The to-level radio (3) is a transistor (B
) The power is cut off from K, and the supply of audio output to the speaker (5) is stopped. Therefore, when the operator (1) is in the on state, the alarm signal generation circuit (
Only the output of sensor (2) will be supplied.
If the device detects an intruder, the speaker (5) emits an alarm sound.

Example 2 Example 2 of the present invention is shown in FIG. Operator +1) is used to select whether to turn on or off the operating state of the sensor (2) that detects the movement of an object. speed h(
5), depending on the output state of the sensor (2), the radio (
3) or the output signal of the alarm signal generating circuit (4) is connected. The operation of each part will be explained below based on FIG. When the operator (1) is off, the sensor (2) is in the off state and no reed detection signal is generated, so that the transistor (C) #:t is in the off state and the relay's )F! Through contact 09, which is not driven, the audio output of the radio (3) is supplied to the speaker (6).

When the operator (1) is on, the sensor (2) is on, and therefore generates a detection signal if a moving object is detected. Depending on the condition of this detection signal, the operation of each part is divided into the following two types. First, sensor (2) is in the operating state, but when there is no intruder and no detection output is generated, the sensor (2) is busy.
The transistor (C) is in the OFF state, and the subsequent operation of the circuit is the same as when the operator +11 is OFF, and the speaker (5) K is supplied with only the audio output of the radio (3). Next, when the sensor (2) detects the presence of an intruder, a detection signal is generated, and when the detection signal is busy, an alarm output is output from the alarm signal generation circuit (4). At this time, a current based on the detected output voltage flows through the base of the transistor (C), so the transistor (C) is turned on and drives the relay 〇)). For this reason, relay (D)
Then, the audio output of contact 0 is cut off, and an alarm output is supplied to the speaker (5) through the contact port, so that the speaker (5) emits an alarm sound.

In the configuration of Embodiment I above, when the sensor (2) is activated and the anti-theft device is placed in an alert state, the radio (3)
However, with the configuration of Embodiment 2, it is possible to listen to the radio (3) even if the anti-theft device is set to the alert mode.Moreover, if an intruder is detected, , Since the alarm sound is output from the speaker (5) in place of the output of the radio (3), the alarm sound can be heard without being disturbed by the sound generated by the radio (3). .

In the above embodiments 1 and 2, the alarm signal generation circuit (4) is an alarm generation means, and instead of the radio (3), audio equipment such as a television, stereo, cassette, etc., or a combination of these may be used. Furthermore, since the transistor (B), the transistor (a), and the relay (to) are switching means, they may be elements having a switching function.Furthermore, in the above embodiment, as an alarm sound, If you decide to use a sound that is too loud for an intruder to hear at the place of entry, such as by increasing the sound pressure or having a frequency spectrum that makes humans uncomfortable, such as a metallic sound, you can intimidate the intruder and cause harm. It can be expected to have the effect of preventing theft by forcing people to leave the area.This effect is particularly effective in a closed car interior.

〔Effect of the invention〕

The zero output 151 includes a speaker of an audio device, a sensor that detects the movement of an object, an operator that activates this sensor, and a detection signal that is emitted by one sensor when the operator is set and the sensor is in an alert state. Since it consists of an alarm generating means that drives the above-mentioned speaker, there is no need to provide a separate speaker exclusively for the alarm device, which not only reduces costs, but also makes the alarm device more compact, making space more efficient. It has the advantage of being usable. Furthermore, since the alarm sound is emitted from an unexpected source, the speaker of the audio device, the intimidation effect against the intruder becomes more effective, especially when a large number of audio devices are placed at the intrusion site. Even if there is only one audio device emitting the alarm sound, the probability that an intruder will find the source of the alarm sound on Yongjima is low;
Also, if all the audio equipment is used as the alarm sound source, it will be difficult to stop the alarm at all times.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a block diagram showing the configuration of Embodiment I of the present invention, FIG. 2 is a block diagram showing the configuration of Embodiment 2 of the present invention, (1) is an operator , (2) is a sensor, (3) is a radio,
(+lF1 alarm signal generation circuit, (6) is the speaker. Agent Patent Attorney Ishi 1) Cho 7@1 Diagram

Claims (2)

[Claims] (1) A speaker of an audio device, a sensor that detects the movement of an object, an operator that activates this sensor, and when the operator is set and the sensor is in an alert state, the sensor emits a detection signal, An alarm device comprising: alarm generation means for driving the speaker. (2) The alarm according to claim 1, further comprising alarm generating means for cutting off the output of the audio equipment circuit from the speaker and driving the speaker based on the detection signal generated by the sensor. Device.