CN2426996Y

CN2426996Y - Portable micro-alarmer

Info

Publication number: CN2426996Y
Application number: CN 00229915
Authority: CN
Inventors: 陈承水; 陈伟; 吴惠娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-10
Filing date: 2000-05-10
Publication date: 2001-04-18
Anticipated expiration: 2010-05-10

Abstract

The utility model relates to a portable micro-alarmer, which comprises an alarm signal detection circuit, a control circuit, and an alarm sound emitting circuit. The utility model is characterized in that the loop of the alarm signal detection circuit is connected with a pull sensitive switch, a vibration sensitive switch, and a selection switch, wherein, one end of the pull sensitive switch is connected in parallel with one end of the vibration sensitive switch, and the other end of the pull sensitive switch is respectively connected with two selection joints of the selection switch; alarm signals obtained by the alarm signal detection circuit generate control signals via the control circuit to control the operation of the alarm sound emitting circuit. The utility model is favorable for users to select an appropriate triggering alarm mode according to a practical situation, and consequently, the utility model can realize the aim of effective and reliable anti-theft alarms.

Description

The portable minisize alarm

The utility model relates to a kind of portable minisize alarm.

Existing a kind of alarm is to be triggered by magnetic switch to report to the police, and its shortcoming mainly is only to enter the cloth defence area and cause the alarm magnetic switch to disconnect or during closure, this alarm just can send chimes of doom as the burglar.Therefore this alarm application scenario is limited.

The purpose of this utility model is that a kind of portable minisize alarm will be provided, and it has, and pulling triggers warning and vibration triggers the two kinds of performances of reporting to the police, and is convenient to the user and selects suitable triggering type of alarm according to practical matter, with the purpose of realization burglar alarm.

The utility model is to constitute like this, it comprises alerting signal testing circuit, control circuit, warning phonation circuit and housing, it is characterized in that: be connected with pulling sensitive switch, vibrating sensing switch and selector switch on the loop of (1) alerting signal testing circuit, one end of pulling sensitive switch and vibrating sensing switch is in parallel, and the other end is connected with two selection contacts of selector switch respectively.(2) alerting signal obtained of alerting signal testing circuit produces the work of control signal control warning phonation circuit through control circuit.

Than existing alarm, the utility model is owing to be provided with on the alerting signal testing circuit in order to trigger the extending type sensitive switch and the oscillatory type sensitive switch of alerting signal, therefore help the in use selected according to actual needs suitable triggering type of alarm of user, thereby enlarged the application scenario of alarm.As: invade from balcony in order to prevent the burglar, when the user lays alarm, can set the pulling type of alarm, the end of lead-in wire is fixed on the movable position (also can select to set the vibration alarming mode) of balcony door and window through selector switch; And for example in order to prevent that briefcase from being stolen, the user then can adopt the vibration alarming mode and alarm directly is positioned in the inclusion.

Below in conjunction with drawings and Examples the utility model is specifically described.

Fig. 1 is embodiment one circuit diagram.

Fig. 2 is embodiment one a product external view, and Fig. 3 is the left view of Fig. 2.

Fig. 4 is embodiment two circuit diagrams.

See figures.1.and.2, embodiment one comprises power supply B1, alerting signal testing circuit, control circuit and warning phonation circuit.It is characterized in that: the alerting signal testing circuit is a pulse detection signals generation circuit, and it is made up of resistance R 1, R2, capacitor C 1, diode D1, selector switch S2, pulling sensitive switch K2 and vibrating sensing K switch 1.Control circuit is made of single-chip microcomputer and peripheral cell thereof, and wherein, single-chip microcomputer 6 pin and potentiometer W1 connect and compose the sensitivity initialization circuit; Single-chip microcomputer 7 pin, 8 pin, resistance R 11, R12 and selector switch S1 constitute time-delay circuit are set; Single-

chip microcomputer

9,10,11,12,13 pin and peripheral keyboard constitute the encoding setting circuit of deploying troops on garrison duty and withdraw a garrison; Single-chip microcomputer 17,18 pin, resistance R 9, R10 and warning light emitting diode L1, L2 and keyboard light emitting diode L3, L4 constitute luminous indicating circuit; Single-chip microcomputer 4 pin and external R14, R13 and C6 constitute reset circuit; Single-chip microcomputer 16 pin and external R15 and the required oscillatory circuit of C6 formation single-chip microcomputer work.The warning phonation circuit is made of single-chip microcomputer 1 pin, audio manifold block (as: B-38), triode Q and loudspeaker Y 1.2 pin of the pulse input single-chip microcomputer that signal deteching circuit produces.

The course of work of embodiment one is as follows:

(1) stir toggle 4 among Fig. 2, set the warning delay time through S1, when S1 was positioned at C point, follow procedure setting delay time was t1 second; When S1 is positioned at the D point, be Realtime Alerts.

(2) stir toggle 5 among Fig. 2, set pulling or vibration alarming mode through S2, when S2 was positioned at the A point, for pulling is reported to the police, S2 was positioned at the B point and then is vibration alarming.

(3) press the key of deploying troops on garrison duty among Fig. 2, light emitting diode L2 lamp is bright, and follow procedure is set and entered the state of deploying troops on garrison duty through t2 after second.When external force pulling draught line 6, K2 disconnects, R1, C1, R2, D1 produce positive pulse, input end 2 pin of single-chip microcomputer IC1, detect this pulse after, selection according to S1, time-delay t1 exports high level at 1 pin of IC1 second, drives audio manifold block and triode Q, makes loudspeaker Y 1 send chimes of doom, follow procedure set t3 after second chimes of doom stop, alarm enters the state of deploying troops on garrison duty once more.During reporting to the police or during the time-delay t1 (the L1 lamp is bright), import the correct sign indicating number of withdrawing a garrison, alarm is removed warning and is withdrawed from the state of deploying troops on garrison duty.

When S2 selects vibration alarming, can regulate the sensitivity of vibration alarming through potentiometer W1 toggle 10.

This alarm is provided with the original sign indicating number of withdrawing a garrison, and the sign indicating number of withdrawing a garrison can be changed, and refills when taking out alarm battery, and the sign indicating number of withdrawing a garrison promptly reverts to source code.

The circuit of embodiment two as shown in Figure 4.Frame of broken lines part 7 expression alerting signal testing circuits among the figure, frame of broken lines 8 parts are represented control circuit, frame of broken lines 9 parts are represented the phonation circuit of reporting to the police.

The circuit theory of embodiment two is described as follows:

K2 is pulling sensor, a kind of microswitch.K1 is a vibration transducer, a kind of moving quick switch.S2 is a selector switch, and alarm works in the pulling alarm condition when selecting the A point; Alarm works in the vibration alarming state when selecting the B point.

The energized switch S, R9, C2 and N1 constitute t2 and delay time and indicating circuit second, and R9, C2 make N2 be output as high level by D3, can not produce warning during this period.T2 is after second in energising, do the time spent as external force, or produce pulling or produce vibration, R1, C1, R2 and D1 produce positive spike pulse, it is low that N2 is output as, at this moment to make C point be high level to the inverter circuit that constitutes of R5, R6, Q1, feeds back to the input end of N2 through D2, and maintenance N2 is output as low, it is low that N3 is output as, the Q2 conducting, IC1, Q3 start working, and send chimes of doom.

R3, R4, C3, D5, D4 constitute t3 time-delay and reset circuit, when N2 output terminal D when low, C3 discharges by R4, be the time t3 that alarm continues sounding its discharge time.When C3 is discharged to low level, by D4, make N2 output become high level, so Q1 ends, Q2 also ends, and Q3 also ends, and chimes of doom stops.Entire circuit enters the state of deploying troops on garrison duty once more, when there being external force to do the time spent again, then repeats said process.

The utility model is novel, rational in infrastructure, stable performance, practical not only, and volume little, be easy to carry, Not only keep high sensitivity but also can prevent from causing unnecessary agitation because of false alarm. Can be widely used in dwelling house, night shift room and night shift room Near the place burglar alarm such as official rooms and go on business and wait the individual burglar alarm use of durante absentia (particularly night).

Claims

1. portable minisize alarm, comprise alerting signal testing circuit, control circuit. warning phonation circuit and housing, it is characterized in that: be connected with pulling sensitive switch, vibrating sensing switch and selector switch on the loop of (1) alerting signal testing circuit, one end of pulling sensitive switch and vibrating sensing switch is in parallel, the other end is connected with two selection contacts of selector switch respectively, and the alerting signal that (2) alerting signal testing circuit obtains produces the work of control signal control warning phonation circuit through control circuit.

2. according to the described portable minisize alarm of claim, it is characterized in that: the alerting signal testing circuit is a pulse detection signals generation circuit, and it is made up of resistance R 1, R2, capacitor C 1, diode D1, selector switch S2, pulling sensitive switch K2 and vibrating sensing K switch 1; Control circuit is made of single-chip microcomputer and peripheral cell thereof, and wherein, single-chip microcomputer 6 pin and potentiometer W1 connect and compose the sensitivity initialization circuit; Single-chip microcomputer 7 pin, 8 pin, resistance R 11, R12 and selector switch S1 constitute time-delay circuit are set; Single-chip microcomputer 9,10,11,12,13 pin and the peripheral keyboard with button constitute the encoding setting circuit of deploying troops on garrison duty and withdraw a garrison; Single-chip microcomputer 17,18 pin, resistance R 9, R10 and warning light emitting diode L1, L2 and keyboard light emitting diode L3.L4 constitute luminous indicating circuit; Single-chip microcomputer 4 pin and external R14, R13 and C6 constitute reset circuit; Single-chip microcomputer 16 pin and external R15 and the required oscillatory circuit of C6 formation single-chip microcomputer work; The warning phonation circuit is made of single-chip microcomputer 1 pin, audio manifold block, triode Q and loudspeaker Y 1; 2 pin of the pulse input single-chip microcomputer that signal deteching circuit produces.