CN202454044U

CN202454044U - Small-earthquake electronic prewarning device

Info

Publication number: CN202454044U
Application number: CN201220044102XU
Authority: CN
Inventors: 王寅寅; 何林
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-12
Filing date: 2012-02-12
Publication date: 2012-09-26
Anticipated expiration: 2022-02-12

Abstract

The utility model belongs to the technical field of earthquake forecasting, and relates to a small-earthquake electronic prewarning device. The prewarning device consists of a 6-volt direct current power supply, an electronic switch circuit, a lighting circuit, a simulated alarm loudspeaker circuit and a direct coupling power amplification circuit, wherein the type of an integrated circuit IC1 in the simulated alarm loudspeaker circuit is a KD-9561 four-tone simulated sound integrated circuit. Under an earthquake of more than 4 levels, the small-earthquake electronic prewarning device can detect a first earthquake wave, namely a small earthquake sign, within extremely short time; the small-earthquake electronic prewarning device can instantly start acousto-optical alarm to timely wake up people who fall asleep; before a large earthquake, the small-earthquake electronic prewarning device ensures that people have dozens of seconds to evacuate to a safety place; and even only the escape time of several seconds is earned, harm of the earthquake to the lives of people can be effectively reduced.

Description

Little shake electronic early warning device

Technical field

The utility model belongs to electronics and earthquake prediction technical field, is about a kind of little shake electronic early warning device.

Background technology

When earthquake occurred in the late into the night, people slept soundly in the room, and this life extent of injury to people is maximum, makes people hard to guard against.If when earthquake takes place,, just can brush past with the Death if can win for tens seconds.Earthquake is a kind of very harmful and irresistible disaster, and the human sciences fails to grasp the pests occurrence rule of earthquake so far.

When the described little shake electronic early warning device of the utility model takes place in earthquake more than 4 grades; This prior-warning device can detect first seismic event in the extremely short time; That is: little shake tendency, little shake electronic early warning device can be reported to the police at moment startup sound, light, in time wakes in sleeping soundly you;, big shake wins tens second most valuable departure time before taking place for you; Help you and household to transfer to the safety area rapidly,, also can reduce the harm of earthquake effectively people's life even can win several seconds escape time.

Below specify this little shake electronic early warning device related relevant technologies content in manufacturing process.

The utility model content

Goal of the invention and beneficial effect: when the described little shake electronic early warning device of the utility model takes place in earthquake more than 4 grades; This prior-warning device can detect first seismic event in the extremely short time; That is: little shake tendency, little shake electronic early warning device can be reported to the police at moment startup sound, light, in time wakes in sleeping soundly you;, big shake wins tens second most valuable departure time before taking place for you; Help you and household to transfer to the safety area rapidly,, also can reduce the harm of earthquake effectively people's life even can win several seconds escape time.

The circuit working principle: little shake electronic early warning device has two parts circuit, and electronic switching circuit is made up of mechanical detection switch S K2, unidirectional thyristor VS, resistance R 1; The acousto-optic early warning circuit is made up of small electric bulb HL, IC 1, NPN type triode VT1, piezoelectric buzzer.

When the moment that earthquake more than 4 grades takes place, mechanical detection switch S K2 will be switched on along with rocking of the earth, and this moment, the 6V direct supply triggered unidirectional thyristor VS conducting through resistance R 1 with mechanical detection switch S K2.The unidirectional thyristor VS conducting that in a single day is triggered; Just can keep conducting state always; Make small electric bulb HL get electroluminescence; IC 1 also gets electrician's work simultaneously, the output terminal output internal memory analog alarm signal of IC 1, and alarm signal promotes piezoelectric buzzer through NPN type triode VT1 and sends loud alarm song.

In the acousto-optic early warning circuit, resistance R 2 is external oscillation resistances of IC 1, changes the tone of its resistance scalable alarm song, and pushbutton switch SW1 is the cancel switch of early warning signal.

Technical scheme: little shake electronic early warning device, to form by 6V direct supply, electronic switching circuit, lighting circuit, analog alarm acoustics circuit, direct couoling power amplifying circuit, its characteristic comprises:

Electronic switching circuit: form by 6V direct supply, pushbutton switch SW1, mechanical detection switch S K2, unidirectional thyristor VS and trigger circuit thereof; Connect the positive pole of 6V direct supply and an end of resistance R 1 behind the anode series pushbutton switch SW1 of unidirectional thyristor VS; The other end of resistance R 1 metal ring among the tool search switch SK2 of meeting sb. at the airport; The control utmost point of the unidirectional thyristor VS tup among the tool search switch SK2 of meeting sb. at the airport, the anodal VCC of the negative electrode connection circuit of unidirectional thyristor VS;

Lighting circuit: the anodal VCC of the termination circuit of small electric bulb HL, the other end connection circuit ground GND of small electric bulb HL;

The analog alarm acoustics circuit: the model that IC 1 adopts is a KD-9561 four tones of standard Chinese pronunciation simulated sound integrated circuit; The anodal VCC of the VDD pin of IC 1 and SE1 pin connection circuit; Cross-over connection resistance R 2 between the OS1 pin of IC 1 and the OS2 pin, the VSS pin connection circuit ground GND of IC 1;

The direct couoling power amplifying circuit: the base stage of NPN type triode VT1 connects the OUT pin of IC 1; The collector of NPN type triode VT1 connects the end of piezoelectric buzzer HA; The anodal VCC of the other end connection circuit of piezoelectric buzzer HA, the emitter connection circuit ground GND of NPN type triode VT1.

Description of drawings

Accompanying drawing 1 is the embodiment circuit working schematic diagram that the utility model provides a little shake electronic early warning device.

Embodiment

Implement according to the circuit working schematic diagram of little shake electronic early warning device shown in the accompanying drawing 1 and the components and parts technical requirement of description of drawings and the following stated, can realize the utility model.

The selection of components and parts and technical parameter thereof

VS selects common MCR100-6 or small-sized plastic packaging unidirectional thyristor such as BT169,2N6565 for use;

IC1 selects KD-9561 type four tones of standard Chinese pronunciation simulated sound integrated circuit for use, and it is Soft Roll envelope form; SE1 in the four tones of standard Chinese pronunciation simulated sound IC 1 end is two selected songs ends with the SE2 end, and when the positive pole of the SE1 connection circuit among IC1 VCC, SE2 hold when unsettled, IC1 exports police whistle sound; When the end of the SE1 among the IC1, when the SE2 end all meets VSS, be alarm song; SE1 end in IC1 is unsettled, and the SE2 among the IC1 holds when meeting VCC or VSS respectively, will send machine gun sound or fire engine sound.In the embodiment circuit, select alarm song for use; Also can select any head in all the other 3 first songs, the method that connects that SE1 holds and SE2 holds that only needs to change among the IC1 gets final product;

VT1 is a NPN type low-power transistor, selects 2SC9014 or 3DG6 class for use, magnificationfactor＞100;

Resistance R 1, R2 all use the small-sized carbon resister of RTX-1/8W type, the resistance 1.5K Ω of resistance R 1, the resistance 270K Ω of resistance R 1;

HL is the special-purpose small electric bulb of electric torch, selects common flashlight special-purpose 3.8V, 0.3A small electric bulb for use;

The model that HA selects for use is CPB14A04-06, and its parameter is: physical dimension is φ 14mm * 7.5mm, and weight is 0.9g, and WV is 4V～6V, working current≤18mA;

From resetting the normally closed type pushbutton switch, also available general single-pole single-throw switch (SPST) replaces SW1 with small-sized;

DC is a direct supply, and voltage is 4.5V, and No. 5 alkaline battery series of available 3 joints are synthetic.

Circuit production main points and circuit debugging

The shell of electric soldering iron is must ground connection good, punctures the inner cmos circuit of IC 1 to avoid ac induction voltage!

The optional sash weight for building of tup in the mechanical detection switch SW 2, plumb line is used the multiply metal wire instead and is come ceiling hammer, and metal ring selects for use the copper wire of ￠ 2mm to bend work;

Gap between tup and the metal ring should be regulated through the method for up-down tup, requires the gap between 1.5～2.5mm, to be advisable; Gap between tup and the metal ring is more little, and the sensitivity of warning is high more, in order to guarantee prior-warning device enough sensitivity is arranged, be used for fixing hang tup support height greater than 1.8m;

During use, this prior-warning device is placed in is not subject to extraneous vibration or blows wait the corner of disturbing, connect that the circuit of prior-warning device promptly gets into supervision earthquake state behind the power supply.Run into the people for causing the prior-warning device false triggering, can remove early warning as long as press pushbutton switch SW1.

Claims

1. one kind little shake electronic early warning device is made up of 6V direct supply, electronic switching circuit, lighting circuit, analog alarm acoustics circuit, direct couoling power amplifying circuit, and its characteristic comprises:

Electronic switching circuit is made up of 6V direct supply, pushbutton switch SW1, mechanical detection switch S K2, unidirectional thyristor VS and trigger circuit thereof; Connect the positive pole of 6V direct supply and an end of resistance R 1 behind the anode series pushbutton switch SW1 of unidirectional thyristor VS; The other end of resistance R 1 metal ring among the tool search switch SK2 of meeting sb. at the airport; The control utmost point of the unidirectional thyristor VS tup among the tool search switch SK2 of meeting sb. at the airport, the anodal VCC of the negative electrode connection circuit of unidirectional thyristor VS;

The anodal VCC of the termination circuit of small electric bulb HL in the lighting circuit, the other end connection circuit ground GND of small electric bulb HL;

The model that IC 1 in the analog alarm acoustics circuit adopts is a KD-9561 four tones of standard Chinese pronunciation simulated sound integrated circuit; The anodal VCC of the VDD pin of IC 1 and SE1 pin connection circuit; Cross-over connection resistance R 2 between the OS1 pin of IC 1 and the OS2 pin, the VSS pin connection circuit ground GND of IC 1;

The base stage of NPN type triode VT1 in the direct couoling power amplifying circuit connects the OUT pin of IC 1; The collector of NPN type triode VT1 connects the end of piezoelectric buzzer HA; The anodal VCC of the other end connection circuit of piezoelectric buzzer HA, the emitter connection circuit ground GND of NPN type triode VT1.