CN203118130U

CN203118130U - Wireless alarm door bell

Info

Publication number: CN203118130U
Application number: CN 201320174012
Authority: CN
Inventors: 秦双华; 羊兆国; 金永; 顾成东; 秦峰
Original assignee: 秦双华
Priority date: 2013-04-09
Filing date: 2013-04-09
Publication date: 2013-08-07
Anticipated expiration: 2023-04-09

Abstract

The utility model discloses a wireless alarm door bell. The wireless alarm door bell comprises a magnetic control switch, a wireless transmitter, a wireless receiver, a physical switch, a music circuit and a loudspeaker, wherein a normally-closed contact of the magnetic control switch is electrically connected with the wireless transmitter; the output of the wireless receiver is connected with one path of input of the music circuit; a normally open contact of the physical switch is connected with the other path of input of the music circuit; and the output of the music circuit is connected with the loudspeaker. The magnetic control switch is triggered, a signal is transmitted through the wireless transmitter, the signal is received through the wireless receiver, and an alarm is sent out through the loudspeaker. The signal is transmitted in a wireless way, the magnetic control switch and the wireless transmitter are mounted in a garage, and the wireless receiver and the loudspeaker are mounted in the home, so that whether the alarm is sent out by the own garage can be clearly known. The output of the wireless receiver is connected with the low-level trigger of the music circuit, the normally open contact of the physical switch is connected with the high-level trigger of the music circuit, and the output end of the music circuit is connected with the loudspeaker through a power amplifier driving circuit, so that the normal door bell and the alarm can respectively send out different sounds and are not mixed.

Description

A kind of radio alarming doorbell

Technical field

The utility model relates to a kind of warning device, is specifically related to a kind of wireless anti-theft alarming doorbell.

Background technology

In the present city, high residential building is in the majority, and some daily vehicles, the thing of life foreign material and so on will be placed in the garage downstairs, because away from the people, is stolen easily, causes economic loss.Therefore, need load onto alarm in these places in the garage.In the prior art, alarm directly is contained on the garage doorframe, and the loudspeaker that gives the alarm also is in the garage, even give the alarm, owner upstairs also differs and hears surely.

Summary of the invention

The purpose of this utility model is: a kind of radio alarming doorbell is provided, can solves the problem that owner does not upstairs hear alarm sound in the garage downstairs.

The utility model is achieved through the following technical solutions:

A kind of garage radio alarming doorbell comprises magnetic switch, wireless launcher, wireless receiver, physical switch, music circuit, loudspeaker, and the normally closed contact of described magnetic switch is electrically connected with wireless launcher; The output of described wireless receiver connects one tunnel input of music circuit, and the normally opened contact of physical switch connects another road input of music circuit; The output of described music circuit connects loudspeaker.

As further preferred version of the present utility model, an end of described magnetic switch connects the base stage of triode, and the other end connects the negative pole of power supply G1; The base stage of triode and collector also are connected respectively to the two ends of resistance R 4; The collector of triode connects power supply G1 positive pole; One end of wireless launcher connects the emitter of triode, and the other end connects the negative pole of power supply G1.

As further preferred version of the present utility model, described music circuit adopts the KD-156 music integrated circuit.

As further preferred version of the present utility model, the output of described wireless receiver connects music circuit low level trigger end; The normally opened contact of described physical switch connects music circuit high level trigger end.

As further preferred version of the present utility model, the output terminal of described music circuit promotes circuit by power amplifier and connects loudspeaker.

The present invention has following beneficial effect:

1. magnetic switch triggers, and transmits by wireless launcher, and wireless receiver receives signal, and gives the alarm by loudspeaker.Because be by transmission of wireless signals, magnetic switch and wireless launcher are contained in the garage, and wireless receiver and loudspeaker can be contained in family, can very clear and definite knowing whether be that oneself garage gives the alarm so just.

2. the output of wireless receiver connects the low level triggering of music circuit, the high level that the normally opened contact of physical switch connects music circuit triggers, the output terminal of music circuit promotes circuit by power amplifier and connects loudspeaker, and making normally rings a doorbell sends different sound respectively with alarm, can not cause and obscure.

Description of drawings

Fig. 1 is the utility model theory diagram.

Fig. 2 is magnetic switch and transmitter connecting circuit schematic diagram.

Fig. 3 is wireless receiver, music circuit, physical switch and loudspeaker connecting circuit schematic diagram.

Embodiment

As shown in Figure 1, a kind of radio alarming doorbell comprises magnetic switch, comprises magnetic switch, wireless launcher, wireless receiver, physical switch, music circuit, loudspeaker, and the normally closed contact of described magnetic switch is electrically connected with wireless launcher; The output of described wireless receiver connects one tunnel input of music circuit, and the normally opened contact of physical switch connects another road input of music circuit; The output of described music circuit connects loudspeaker.One end of described magnetic switch connects the base stage of triode, and the other end connects the negative pole of power supply G1; The base stage of triode and collector also are connected respectively to the two ends of resistance R 4; The collector of triode connects power supply G1 positive pole; One end of wireless launcher connects the emitter of triode, and the other end connects the negative pole of power supply G1.

The wireless launcher main devices is a TWH630 mini radio emitting head, when turning on the power switch K, when magnetic switch disconnects, it by concealed antenna to aerial radiation high-frequency signal.This transmitter modulation oscillator adopts common 555 time-base integrated circuits for example NE555, SI555 or p, time-base integrated circuits such as A555, it is connected into free-running multivibrator, the output square wave frequency is about 1kHz, and square-wave signal is added to TWH630 by resistor input end modulates the high-frequency signal of radiation.

Wireless receiver is made up of devices such as TWH631 radio reception head, LM567 tone decoder and " ding-dong one chirping of birds " KD-156 special ICs.KD-156 special ICs are " ding-dong-chirping of birds. " music integrated circuit, and it has two trigger ends, and one is the high level trigger end, and it is triggered by high level, output be the chirping of birds signal, this trigger end is invalid to low level; Another is the low level trigger end, when triggered by low level, output be " ding-dong " signal, it is invalid to high level.TWH631 at first amplifies after receiving signal from transmitter module, delivering to LM567 by output terminal then decodes, this moment integrated package 8 pin output low levels, be added to the low triggering end of KD-156 special ICs, make it be subjected to sending " ding-dong " signal and amplify to drive the loudspeaker sounding through transistor.What the guest pressed when visiting is physical button, and this moment, the high level trigger end was triggered, and is " chirping of birds " sound so loudspeaker sends.

Claims

1. radio alarming doorbell, it is characterized in that: comprise magnetic switch, wireless launcher, wireless receiver, physical switch, music circuit, loudspeaker, the normally closed contact of described magnetic switch is electrically connected with wireless launcher; The output of described wireless receiver connects one tunnel input of music circuit, and the normally opened contact of physical switch connects another road input of music circuit; The output of described music circuit connects loudspeaker.

2. a kind of radio alarming doorbell according to claim 1 is characterized in that: the base stage of the end connection triode of described magnetic switch, the negative pole of other end connection power supply G1; The base stage of triode and collector also are connected respectively to the two ends of resistance R 4; The collector of triode connects power supply G1 positive pole; One end of wireless launcher connects the emitter of triode, and the other end connects the negative pole of power supply G1.

3. a kind of radio alarming doorbell according to claim 1 is characterized in that: described music circuit employing KD-156 music integrated circuit.

4. according to claim 1 or 3 described a kind of radio alarming doorbells, it is characterized in that: the output of described wireless receiver connects music circuit low level trigger end; The normally opened contact of described physical switch connects music circuit high level trigger end.

5. a kind of radio alarming doorbell according to claim 1 is characterized in that: the output terminal of described music circuit promotes circuit by power amplifier and connects loudspeaker.