CN2119692U - Multifunctional intelligent alarm with electronic clock - Google Patents

Abstract

The utility model discloses a multifunctional intelligent alarm with an electronic clock. The multifunctional intelligent alarm with an electronic clock comprises a single-chip microcomputer circuit, a display circuit and a power supply circuit; a set of detection signals of an environmental anomaly condition detection circuit are input into the single-chip microcomputer circuit through an analog/digit converter, and then the single-chip microcomputer circuit controls an alarm circuit to send out an alarm signal; the display circuit is connected with a microcomputer control circuit; an input keyboard is connected with the single-chip microcomputer circuit through a series/ parallel converter; the power supply circuit respectively provides required power supply for each circuit. The utility model has the alarm functions of gas, intrusion, fire, etc. and can provide fixed-time call, time indication and date indication. Moreover, the utility model can automatically switch on a lamp.

Description

Multifunctional intelligent alarm with electronic clock

The utility model relates to the warning device in the telltale, is a kind of alarm that responds two or more different accident or abnormal conditions, comprises burglar and fire alarm etc.The utility model also relates to the electronic timer in the horology, is a kind of indicating device of visual time or date, specifically, is the overlapping character that utilizes the indicator elment combination, for example: the indicating device that utilizes the time or date etc. of multiplex techniques.

At present existing various types of guard and alarm devices, but only possess simple function mostly, as gas leak detector, fire-alarm, intrusion alarm unit etc.Electronic clock also is simple function usually.Because these alarms and clock apparatus purposes have nothing in common with each other, and utilize common design to be difficult to organically combine, therefore, finishing multiple warning function etc. just must purchase a plurality of alarms usually and use simultaneously, this not only brings difficulty to operation and maintenance, also increased and bought spending, be unfavorable for promoting the use of of alarm.

The purpose of this utility model provides a kind of multiple abnormal conditions warning function that has, and is simple in structure, has the intelligent multifunction alarm of the charged secondary clock of clock and time control function simultaneously.

Technical solution of the present utility model is: a kind of intelligent multifunction alarm of charged secondary clock, has a single chip circuit, two---four groups of environmental abnormality situation testing circuits convert detected signal to digital signal through A/D converter, send into single chip circuit again and handle; Single chip circuit sends corresponding alerting signal according to warning circuit of signal processing results control; A display circuit is connected with single chip circuit, and an input keyboard is connected with monolithic integrated circuit through a serial/parallel transducer; A power circuit is respectively above-mentioned each circuit provides required power supply.

Environmental abnormality situation testing circuit in the utility model by gas and Smoke Detection circuit, invade thief-proof testing circuit, and temperature sensing circuit formed.

The thief-proof testing circuit of invasion in the utility model adopts far infrared intrusion detection circuit or microwave intrusion detection circuit or video intrusion detection circuit.

Single chip circuit in the utility model is connected to holding circuit, comprising: electrification reset and deadlock are from compound circuit, power-down operation circuit, internal memory erosion control circuit, and power-fail detection circuit.

Power circuit in the utility model is included in and is electrically connected separate analog power and digital power.

Having 7 keys on the input keyboard in the utility model, is command key entirely, and countless keyboard.

The utility model has the advantages that: owing to adopt single-chip microcomputer as central Operations Analysis, utilize single-chip microcomputer technology all to convert the signal that all kinds of testing circuits send to digital quantity, and combine with the fully automatic electric secondary clock of forming with software with functions such as the summer time is changed automatically, leap year corrections, show by data operation, logic discrimination, time-delay timing and numeral, thereby reached multifunction and intellectuality.Can finish carbon monoxide and smoke monitoring reliably, invade thief-proof warning, turn on light automatically, fire alarm, the full-automatic electronic clock time shows and date demonstration, fixed time call, alarm clock, temperature demonstration etc.And circuit structure is simple, and cost is low, is easy to the manufacturing, reliability height, has widened usable range greatly.

The utility model is described in further detail below in conjunction with drawings and Examples:

A kind of gas and the Smoke Detection electrical block diagram of Fig. 1 for adopting in the utility model.

A kind of temperature sensing circuit structural representation of Fig. 2 for adopting in the utility model.

A kind of far infrared intrusion detection electrical block diagram of Fig. 3 for being adopted in the utility model.

Fig. 4 is structural representations such as the microcomputer control circuit that adopted in the utility model, warning circuit, display circuit, input keyboard.

Fig. 5 is holding circuit structural representations such as the electrification reset that adopts in the utility model and deadlock runback, power-down operation, internal memory erosion control.

The power-fail detection circuit structural representation of Fig. 6 for adopting in the utility model.

The circuit construction of electric power synoptic diagram of Fig. 7 for adopting in the utility model.

Fig. 8 is the part of the flow chart of the software that adopts in the utility model.

Fig. 9 is another part of the flow chart of the software that adopts in the utility model.

Figure 10 is timer T ₀The interrupt service routine block diagram.

Figure 11 is timer T ₁The interrupt service routine block diagram.

Figure 12 is the SCR AC switch circuit structure diagram.

Fig. 1,2,3,4,5,6,7 unites and has described an embodiment of the present utility model.Described gas of Fig. 1 and Smoke Detection circuit, be by gas sensor QM-N5, operational amplifier F2, F3(model: 1/25G358), photoelectrical coupler BG10, BG11(model 1/2PC827), resistance R 24, R25, R26, R27, R28, R57, R68, R69, capacitor C 28, C29, C41 etc. form; The detected signal of gas sensor QM-N5 after the one-level direct current amplifies, the about 31dB of voltage gain, the linear light that amplified analog signal is made up of two photoelectrical couplers and the amplifier F3 again circuit that is coupled is sent into the sample port IN3 of A/D converter 0809.The temperature sensing circuit that Fig. 2 describes, be by temperature sensor NST-1, operational amplifier F4, F5(model: 1/25G353), photoelectrical coupler BG12, BG13(model: 1/2PC827), resistance R 29, R30, R31, R32, R33, R34, R35, R36, R37, R38, R39, R70, R71, capacitor C 30, C42 etc. form; The detected signal of temperature sensor NST-1 is after the bridge-type direct current amplifier amplifies, the about 20dB of voltage gain, equally, the linear light coupling circuit be made up of two photoelectrical couplers and amplifier of amplified analog signal is sent into the sample port IN4 of A/D converter 0809.The far infrared intrusion detection circuit that Fig. 3 describes, be by far-infrared sensor P228, operational amplifier F6, F7, F8(model: 1/25G358), photoelectrical coupler BG14, BG15(model: 1/2PC827), trigistor WH8778, diode D8, resistance R 40, R41, R42, R43, R44, R45, R46, R47, R48, R49, R50, R51, R52, R72, R73, R74, capacitor C 31, C32, C33, C34, C35, C36, C37, C38, C39, C43 etc. form; The detected signal of far-infrared sensor is after two-stage exchanges operational amplifier, and the about 94dB of voltage gain, this amplifier output voltage when static state is about 1/2 of supply voltage VS, and output voltage was swung in the top/bottom latitude of 1/2VS when the invasion signal was arranged; Through amplified analog signal, also the linear light coupling circuit of being made up of two photoelectrical couplers and amplifier is sent into the sample port IN5 of A/D converter 0809.Because above-mentioned amplifying circuit of analog signal and single chip circuit are ground altogether not, this is to the anti-interference very big effect of raising total system.Detected signal is amplified to 0-5V.

The described circuit of Fig. 4, its center are 8031 single-chip microcomputers, certainly, also can adopt other single-chip microcomputers like other 51 series monolithics or the performance classes; Adopt the EPROM(model of 4K byte: 2732) as memory under program, latch 74LS373 is used for latching the data address signal that timesharing occurs on the bus.Serial/parallel line transformer 74LS164 is used for the serial signal that single-chip microcomputer 8031 sends is transformed into parallel signal to realize keyboard scan and to provide the segment encode of LED charactron.In order to remedy the deficiency of single-chip microcomputer 8031 delivery outlets, expanded a slice 74LS373 as 8 bit data delivery outlets, as the scan shift of LED.

8 A/D converters 0809 are used for temperature sensor, gas sensor and the hot signal transition of releasing far-infrared sensor are become digital quantity.

Output signal is respectively from P1.0; P1.1; P1.2 is through photoelectrical coupler BG1, BG3(model: PC613) output, start respectively after oppositely amplifying and report to the police with siren integrated package CW9561 or music-integrating block CW9300 and time opening far infrared deterctor, the concrete pin of integrated package CW9561 and CW9300 is connected can be with reference to common connection.Also comprise triode BG4 in the foregoing circuit, relay J, diode D1, photoelectrical coupler BG5(model PC613), resistance R 1, R3, R4, R5, R6, R7, R8, R71, timely basic circuit devices such as (models 1/2 556).

The P1.4 of single-chip microcomputer 8031 connects deadlock from the corresponding contact of compound circuit, and P1.5 connects the power-down operation circuit, and P1.7 connects the key input, and P1.6 K switch 1 is selected ground connection or connect+VC through resistance R 8, and P3.5 connects a second mark through a not gate.XTAL1 and XTAL2 connect the crystal oscillating circuit of being made up of crystal oscillator HT, capacitor C 2, C3.Describe among the visible figure of other pin connection.

Keyboard has only command key and does not have numerical key in this circuit, and this is one of characteristics of this circuit.The setting of numeral starts the internal clocking T1 of single-chip microcomputer 8031 by command key rice key, makes it to stir from 0 → 9 with the speed of one of per second, connects command key rice again, numeral is promptly locked, during by the 3rd time, numeral moves from high to low, and whole assignment procedure is similar to mode time calibration of electronic watch.

The functions of use of each command key is as follows:

A key: reset key.

The B key: circulation shows options button, whenever by the demonstration conversion that once can finish from the temperature → day → week moon → time-division.

C key: time key.

D key: month day time-division key.Whenever click and show in such a month, and on such a day some time branch respectively.

E key: far infrared time opening key.Whenever click the unlatching moment and close moment that demonstration respectively sets.

F key: fixed time call or alarm clock setting key.Cooperate with K switch 1 it can show the moon that needs fixed time call, day, the time, branch or alarm clock play the noisy moment.

More than can not come the changed content with rice key input digit except that A key and B key in each key, all available rice of other each keys key is revised at any time.

Also have 8 7407,4 75492 in the keyboard circuit, resistance R 54, R57, R60, R61, R62, R63, R64, R65, R66, R67 etc.

Relay J is also controlled a SCR AC switch circuit shown in Figure 12, and this circuit is by resistance R 2, capacitor C 1, pilot lamp D, fusible link RD1, compositions such as bidirectional triode thyristor SCR.

Fig. 5 has described electrification reset and deadlock runback, power-down operation and the internal memory erosion control circuit in the holding circuit.Foregoing circuit is by integrated circuit (IC) 1(model 556), IC2(model 74LS123), IC3(model 1/2 556), transistor BG6, BG7, BG8, diode D2, D3, D4, D5, D6, D7, resistance R 9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, capacitor C 4, C5, C6, C7, C8, C9, C10, C11, C12, C13, C14, button A, and or compositions such as door, rejection gate, Sheffer stroke gate.Pins such as the P1.4 of single-chip microcomputer 8031, P1.5, P2.5, P2.6, P2.7, PSEN, RST/VPD are connected with corresponding contact in the circuit.

The course of work of power-down operation is: the INTO end of single-chip microcomputer 8031 is triggered the back by negative pulse and jumps to the power down protection program from present procedure; after finishing data protection, send low level and trigger the power-down operation circuit of forming by second half 556 time base circuit by the P1.5 end; the RST/VPD that standby power supply 3V is fed single-chip microcomputer 8031 holds, to guarantee unlikely the losing of ram in slice data.If false triggering, the power-down operation circuit can cut off standby power supply automatically and recover normal power supply.

The course of work of electrification reset and deadlock runback is: what the P1.4 end of single-chip microcomputer 8031 sent is the square wave of certain frequency.Transistor BG6, BG7 be conducting under high-low level respectively, thereby produces voltage on capacitor C 4, C5, is added to the P2.6 pin of 1/2 556 time base circuits by diode D2, D3.1/2 556 time base circuits are connected into voltage comparator, if system's run time address pointer deadlock, the P1.4 pin of single-chip microcomputer 8031 can stop to export square wave, transistor BG6 or BG7 must have a pipe to end, therefore voltage comparator upset, export a low level by the 5th pin, because the differential action of resistance R 14 and capacitor C 9, negative pulse joins the 8th pin.Second half 556 time base circuit is connected into a monostable circuit, and negative pulse makes the anti-phase back of monostable circuit output low level add transistor BG8 by resistance R 5, thereby makes system reset.

The course of work of internal memory erosion control is: because memory under program is the 4K byte, so the P2.5 of single-chip microcomputer 8031, P2.6, P2.7 pin all are the sky pin.If system runs and flies, address pointer will inevitably enter the high address district, and promptly P2.5, P2.6, P2.7 pin always have a pin and produce high level, will export a low triggering level behind rejection gate, in order to prevent at non-fetch phase, P2.5, P2.6, P2.7 is last high level may occur.The PSEN of this circuit from 8031 take out signal make it behind the AOI signal again through or door clamp down on, thereby guarantee that it is to run to fly signal that P2.5, the P2.6, the high level on the P2.7 that only occur at fetch phase just are confirmed to be.Race flies signal and triggers the monostable circuit of being made up of 74LS123, can make system reset, in case address pointer washes away the data in the ram in slice.

Fig. 6 has described the power-fail detection circuit in the holding circuit.It is by optoisolator BG9, diode WD, resistance R 20, R21, R22, R23, capacitor C 15, operational amplifier F1(1/2 5G358), integrated circuit (IC) 4(,1/2 556) etc. form.The course of work is: the end of oppisite phase that after the filtering of optoisolator BG9 taking-up electric main half-wave high level is joined operational amplifier F1; if power down; the upset of amplifier voltage comparator; the rest-set flip-flop that 1/2 556 time base circuits are formed triggers and sends the INTO end that a negative pulse is delivered to single-chip microcomputer 8031, thereby makes the system break present procedure change the power down protection operation over to.

Fig. 7 has described power circuit.It is by transformer B, rectifier bridge heap ZL1, ZL2, ZL3, ZL4, three of regulator block 7805(), 7809,7812,7905, diode D9, D10, capacitor C 16, C17, C18, C19, C20, C21, C22, C23, C24, C25, C26, C7 etc. form, VM is analog power output, and VS is digital power output.Analog power and digital power two parts and adopt the two-stage voltage regulation way not altogether.All be added with the electrostatic screening separation layer in order to eliminate power supply interference transformer primary and secondary.

The SCR AC switch that Figure 12 describes is by fuse RD1, bidirectional triode thyristor SCR, resistance R 2, and capacitor C 1, pilot lamp D etc. form.

Fig. 8, Fig. 9, Figure 10, Figure 11 have described software used in the present embodiment.Its characteristics are as follows:

128 ram in slice are done following distribution:

Totally 24 bit locations of 20H-22H all makes zone bit.

Stack top is 60H.

Four interrupt sources are to distribute like this:

The arrangement of T0 interrupt source has the electronic clock program, leap year discriminating program, comparison program regularly, A/D sampling analog to digital conversion program, and the far infrared one minute counting procedure of signal that transfinites.

The arrangement of T1 interrupt source has 0 → 9 circulation to put several programs and the watchdog routine of turning on light automatically night.

The INTO exterior interrupt connects the decompression signal of power-fail detection circuit.It recovers outside the stack top except performing the zero clearing of stack district during decompression, and address pointer is deposited in the 004DH place, in case collide data among the RAM.

The 1NT1 exterior interrupt connects the monostable trigger pip of sending when turning on light night.When K2 turned on light the position at night, the low level that P1.0 sends made the BG4 conducting on the one hand, and the relay adhesive makes the ac thyristor switch conduction; Make BG5 be subjected to exciting of photodiode and conducting on the other hand, 1NT1 interruption present procedure is jumped in the watchdog routine of turning on light automatically thereby send single steady signal.

Considering also in software that gas sensor has when just opening reaches 2-4 minute non-steady state.Therefore has 5 minutes function of automatic time delay.

Consider that infrared components has 2 minutes non-steady state when just opening, therefore be timed to the time-delay that the back also has 2 minutes.

Consider that far-infrared element has only three-dimensional monitoring (length in space), and can not get rid of extraneous instantaneous interference, therefore increased the time differentiation in this software, just open the T1 timer immediately behind the signal monitoring first, in per 0.1 second once sampling,, show that promptly historical signal is consistent with " current demand signal " if accumulated signal has more than 10 times, therefore be true, otherwise be false.This four-dimensional monitor mode can prevent the interference that accidental factor is brought effectively.

Leap year discriminating program in this software removes cubic method with the time and differentiates.What day program is with asking the week formula to determine:

S＝（X－1）＋（ (X－1)/4 ）－（ (X－1)/100 ）＋（ (X－1)/400 ）＋C

Because between year, month, day and what day is funtcional relationship, therefore is difficult for makeing mistakes, and can finishes the computing of asking in arbitrary year in such a month, and on such a day to what day.

In order to improve reliability, the A/D converse routine is except carrying out also having the function of medium filtering the interrupt mode analog to digital conversion in the mode of per 0.1 second once sampling signal.

This software serial scan program adopts time-sharing format that button and LED charactron are scanned, and shows to realize that keyboard commands input and LED are digital.

Fully automatic electric secondary clock program has the automatic correction leap year, summer time function, and the realization of a certain function is to utilize the software resource in 8031 single-chip microcomputers.

The utility model can be made suspension type or desk-top, if adopt suspension type, then button and switch all can be assembled in the movable capsule, so that pull down operation from eminence, looses one's grip after having operated movable capsule to be sent and returns in the clock body.

Claims (9)

1, a kind of intelligent multifunction alarm of charged secondary clock, it is characterized in that: have a single chip circuit, two-four groups of environmental abnormality situation testing circuits convert detected signal to digital signal through A/D converter, send into single chip circuit again and handle; Single chip circuit sends corresponding alerting signal according to warning circuit of signal processing results control; A display circuit is connected with single chip circuit, and an input keyboard is connected with single chip circuit through a serial/parallel transducer; A power circuit is respectively above-mentioned each circuit provides required power supply.

2, the intelligent multifunction alarm of charged secondary clock according to claim 1 is characterized in that: environmental abnormality situation testing circuit by gas and Smoke Detection circuit, invade thief-proof testing circuit, and temperature sensing circuit formed.

3, charged secondary clock intelligent multifunction alarm according to claim 2 is characterized in that: invade thief-proof testing circuit and adopt far infrared intrusion detection circuit or microwave intrusion detection circuit or video intrusion detection circuit.

4, according to the intelligent multifunction alarm of claim 1 or 2,3 described charged secondary clocks; it is characterized in that: single chip circuit is connected to holding circuit, comprising: electrification reset and deadlock are from compound circuit, power-down operation circuit, internal memory erosion control circuit, and power-fail detection circuit.

5, according to the intelligent multifunction alarm of claim 1 or 2,3 described charged secondary clocks, it is characterized in that: power circuit is included in and is electrically connected separate analog power and digital power.

6, the intelligent multifunction alarm of charged secondary clock according to claim 4 is characterized in that: power circuit is included in and is electrically connected separate analog power and digital power.

7, according to the intelligent multifunction alarm of claim 1 or 2,3 described charged secondary clocks, it is characterized in that: have 7 keys on the input keyboard.

8, the intelligent multifunction alarm of charged secondary clock according to claim 4 is characterized in that: have 7 keys on the input keyboard.

9, the intelligent multifunction alarm of charged secondary clock according to claim 6 is characterized in that: have 7 keys on the input keyboard.

Images