CN203250367U - Widely used touch type antitheft device - Google Patents

Abstract

A widely used touch type antitheft device belongs to the technical field of an alarm. The touch type antitheft device is composed of the following components: an open type power supply, a prewarning signal generating sheet, a prewarning electronic circuit, an alarm starter, an electronic timing type switch circuit and a sound equipment system. The alarm starter is composed of two switches which are arranged on different positions on the door. No matter lockhole breaking or breaking-into in a crude manner, a switch contact changes and an alarm starting signal is generated. The sound equipment system is started for generating alarm sound. The electronic timing type switch line is used for causing alarm starting more reliable. The prewarning signal generating sheet totally shields a lockhole switch and the lockhole in the alarm starter. When a condition occurs, after a touch signal is generated and the prewarning electronic circuit is started as soon as the prewarning signal generating sheet is contacted, the sound equipment system generates a pre-warning. The touch type antitheft device becomes a novel alarm kind in matching with a power supply with advantages of high overvoltage capability, excellent anti-lightening effect and wide commercial power application range. The performance of the alarm products is furthermore improved.

Description

Use widely touch alarm

Technical field

Belong to the alarm technical field.

Background technology

Anti-theft safety door is the security personnel of family's indispensability; but the lockhole of anti-theft safety door exposes outside; become the breach that event occurs; and door can only be the protection of passive type; thereby door mostly is to be combined with alarm; the alarm that cooperates with anti-theft safety door at present is of a great variety, but all is could produce onsite alarming when the crime behavior has been arranged, rather than just gives a warning in the beginning that might commit a crime.Imagine, if a kind of alarm can make anti-theft safety door that the protection of a kind of " active " is arranged, that is: crime just begin just give a warning, allowing and reporting to the police in advance, the criminal is understood early have within doors and prepares and stop in advance, thereby avoid continuing stolen possibility.

Yet form the protection of " active ", but had two hang-ups: the one, how just can make alarm have standby lead? possessed lead and how to have improved again the dynamics of warning.

The startup of reporting to the police is critical element, direct relation the reliability of reporting to the police and starting, show after deliberation, address this problem, must making an effort simultaneously aspect machinery and two in the circuit, cooperatively interact, the effect that just can obtain, but will use what kind of physical construction, and what kind of circuit of joining is only best disposal route, this also is an important topic that is worth research.

Security personnel's series products, the power supply that is equipped with there is strict requirement, its reason is this series products, can just can not work because situation is special, it do not work and to become security personnel's blank of the first, it two is if damage, keep in repair more professional, can that works finds easily maintenace point as ordinary electrical home appliance.Interweaving of above-mentioned 2 reasons further strengthened making excessive demands power supply.

And present integrated regulator, very major part is the performance take 78 series as representative, and its inherency of these integrated circuit exists the low weakness of input voltage, and this weakness causes damage the easiliest the most again, is difficult to adapt to the requirement of the second electronic equipment.

Summary of the invention

The objective of the invention is to utilize the prior art achievement again to propose a kind of new technical measures, cooperate existing patented technology achievement, form a kind of novel protector kind, strong with overvoltage capabilities, lightning protection effect is good, the power supply that adapts to the civil power wide ranges matches, and remedies the weakness of existing alarm, can prepare the crime stage, just send immediately pre-caution, thereby the state of affairs is prevented in advance, enriched the kind of anti-theft safety door, strengthened the dynamics of reporting to the police.

The technical solution used in the present invention is:

1, touch alarm is by the open type power supply widely in use, and early warning signal takes out sheet, the early warning electronic circuit, and alarming starter, electronic timing formula on-off circuit, several parts of sound system form jointly.

Wherein: the open type source of stable pressure is the triode by defencive function, and the triode of voltage-regulation voltage-stabilization function and related peripheral part combine.

Rectification output has outwards connected three the tunnel, and wherein the first branch road has connected the positive pole of voltage stabilizing diode, the negative pole of this a stabilivolt resistance R 1 rear base stage that has connected a protection triode by name of having connected; The second branch road is to have connected a collector of adjusting triode by name; The 3rd branch road is to have connected a resistance in the base stage of adjusting triode.

The emitter of adjusting triode has been connected after the resistance R 2, becomes the last output terminal of power supply.

It is to have connected second voltage stabilizing diode and resistance R 3 series circuit ground connection that the base stage of adjustment triode has also connected following the three tunnel: the first branch road; The second branch road of base stage is the overcurrent protection branch road that has connected several diodes series connection, and base stage links to each other with this bypass diodes positive terminal, the linked to each other last output terminal of power supply of the negative pole end of diode; The 3rd branch road of base stage is the anode that has connected the protection triode; Emitter grounding.

The grounded emitter of protection triode.

It is to have made the bottle cap shape by a sheet metal that early warning signal takes out sheet, and docking is a kind of ring flange with it, and ring flange is installed in lockhole place on the antitheft door, bottle cap with lockhole is covered fully after ring flange docks, will warn in advance signal with wire and draw.

The early warning electronic circuit is by prestage, amplifier stage, and electronic switch level three parts form.

Prestage is that the end with wire is connected in early warning signal and takes out on the sheet, and the other end of wire is connected on the base stage of a triode, and the collector of this triode is by on system power supply, and emitter connects the input end of amplifier stage.

Amplifier stage is made of with peripheral element jointly a plurality of not gates: link to each other with output terminal with a plurality of not gate input ends, it is the input that has connected second not gate with the output of first not gate, such as the form that is connected in series of many not gates of method generation, every not gate input has been connected a resistance with output terminal; Connected the input of first not gate with the prestage transistor emitter, the output of last not gate is the output of amplifier stage.

The electronic switch level is that the input end with several not gates connects together, and becomes this input end, and several non-gate output terminals connect together, and become output terminal at the corresponding levels, and the input end of this grade is connected in the output terminal of amplifier stage, and output terminal has connected the sound system power supply.

Alarming starter is made of a travel switch and lockhole switch:

The lockhole switch is mounted in the hollow position of ring flange, and early warning signal takes out under the sheet, with screw early warning signal is taken out sheet and docks with ring flange, and early warning signal takes out the button that the lockhole switch is lived in the sheet compressing; The input that is connected to electronic timing formula on-off circuit is drawn in the contact of lockhole switch with wire.

Travel switch is mounted in door and doorframe junction, when door and doorframe close close after, the button of travel switch is lived in the doorframe compressing, with going between the input that is connected to electronic timing formula on-off circuit is drawn in the contact of travel switch.

Electronic timing formula on-off circuit is: with the base stage that has connected a NPN triode after the series connection of resistance of vibration transducer output extension line process, the grounded emitter line of this triode, the base stage of this NPN triode, the other end ground wire of this resistance have been connected with an end of a resistance; The connected rear base stage that connects a PNP triode of another resistance of the collector of this NPN triode, the emitter of PNP triode has connected 12 volts of power supplys, connected the emitter of PNP pipe with an end of another resistance, the other end of this resistance has connected the base stage of PNP pipe; Connected the collector of PNP pipe with a utmost point of an electric capacity, this electric capacity has been connected the base stage of NPN pipe in addition behind resistance of extreme series connection and the diode cathode; Another utmost point of this electric capacity has also connected an end of another resistance, the other end ground connection of this resistance; This PNP transistor collector has connected the power input of wireless remote control radiating circuit.

The power supply that has connected sound system behind the alarming starter process timing self-locking switch circuit.

Sound system is: the positive terminal of operational amplifier is received in the output of pronunciation sheet, the end of oppisite phase ground connection of operational amplifier, the output of operational amplifier has connect two-way, one the tunnel has connected an end of audio frequency adjusting resistance, the audio frequency adjusting resistance other end connects audio frequency and adjusts electric capacity, and audio frequency is adjusted electric capacity other end ground connection, and another road has connected the positive pole of commissure electric capacity, commissure electric capacity negative pole extremely links to each other with one of loudspeaker, another utmost point ground connection of loudspeaker.

2, the operational amplifier in the sound system is integrated circuit 386.

3, the voltage stabilizing diode that the first branch road of rectification output connects in the open type source of stable pressure is to be formed in parallel by two stabilivolts, and the parameter of the voltage stabilizing value of two stabilivolts is different.

4, adjusting the number of diodes of managing base stage connected overcurrent protection branch road in the open type source of stable pressure is two.

5, the amplifier stage in the early warning electronic circuit is to be formed by two to three not gate strings, and electronic switch is that output terminal and the input end by three to four not gates connects together respectively, and not gate adopts integrated circuit 4069.

6, the feedback capacity in the electronic timing formula on-off circuit is the form that is in series into electrodeless electric capacity with two capacitance cathodes.

7, the lockhole switch is a pocket buttons switch.

Now to the meaning of each technical measures of the present invention, concrete condition further is explained as follows:

1,The existing achievement in research of the present invention is, to opening the door of antitheft door, without mechanical key, but adopts the wireless remote control method to open the door, and only is a kind of backup with the lockhole that mechanical key opens the door, and just enables when breaking down, so lockhole can seal.

,Effect of the present invention is that a kind of band has levels and the alarming device of several functions is arranged.Be that the different triggering starting device of two covers is arranged, two kinds of different cautions, thereby produce two kinds of different effects.

The first level is pre-caution: fundamental purpose is to prevent the heart that crime is arranged, or firm crowd when bud.Function is to rigidly connect at the hand when crime to touch after early warning signal takes out sheet above the lockhole, sound system will send pre-caution, this caution is neutral, can send " please noting " such as the sound, or language such as " please not staying at this " is prevented, benefit one with gender neutral language is will cause very large psychological pressure to the criminal, the 2nd, can not damage being not intended to the person, and the 3rd, more can not cause in terror the neighbours.

The protection of the second level is to report to the police.Mainly be for the criminal who does not prevent the pre-caution of living, or with the barbarous mode person of forcing open the door, at this moment, if think formal damage lock port lid, when entering house by cracking lockhole, to send out and displacement by the shift knob of lockhole cap lower compression, produce the warning enabling signal, if force open the door with barbarous mode, being installed on door changes with the travel switch of the doorframe junction displacement contact because of doorframe, also can produce the warning enabling signal, thereby the starting warning system will be sent chimes of doom severe and deterrent that give great volume.

3. the principle of pre-caution generation is: touch the early warning signal taking-up sheet of aspect on the lockhole when hand after, after the base stage of touch signal process prestage emitter follower enters, the amplifier stage that enters into this grade amplifies, after enough voltage has been arranged, touch at last electronic switch at the corresponding levels (being that merit at the corresponding levels enters) and remove to promote to warn in advance acoustics circuit.

4, used its Main Function that 2 points are arranged in the measure 1, one of, relaxed the requirement to switch, namely be that switch can be key type, also can be button-type, and on the power of contact without impact, so can adopt miniature, the difficulty of installing to reduce switch increases the attractive in appearance of door simultaneously.Two are sensitivity and the reliabilities that improved the starting of reporting to the police.Because principle of the present invention is, when its people has when cracking lockhole or the action that barbarous mode forces open the door being arranged, the warning initiating signal is sent in the alarming starter action, and electronic timing formula on-off circuit starts immediately, and irretrievable, will send initiating signal.

To being described as follows of electronic timing formula on-off circuit:

(1), the form to the pipe amplification that adopts NPN and PNP to constitute jointly, following meaning is arranged, one of, amplification quantity is large; Two, the PNP pipe become saturated after, the loss of voltage of generation little (when being furnished with accumulator, peculiar meaning); Three, can easily transient signal be changed into a kind of long signal; Four, formed electronic switch volume is urinated in miniaturization.

(2), in the electronic switching circuit that pipe is formed, anti-remaining resistance, namely be that the resistance that connects between PNP pipe emitter and the base stage has played vital role in circuit, its effect is when NPN pipe no signal, the thorough no-voltage of the output of switch, output for the through engineering approaches that electronic switch uses, has been created essential condition without any remaining electricity.

(3), why between two pipes, add the positive feedback with Capacitance derivative, the one, satisfy this condition, the 2nd, can realize automatic recovery.

(4), why feedback capacity adopts electrodeless reason to be, the electrodeless electric capacity leakage coefficient is little, is used for down to feedback circuit, and circuit is more stable.

5, sound system is behind employing measure 1 described circuit, formed such principle: sound system unites two into one at circuit and power supply, so produced following outstanding advantage, circuit is simplified, do not occupy between the effective appearance of door, can utilize the position of dress doorbell in the former door.Need not often change the battery of doorbell, because the AC power of available warning system replaces.It is above-mentioned that some is very beneficial for engineering reality.Because adopted behind such circuit and the position that fills, warning gives great volume, and can produce to deter effect.

6, the power supply among the present invention is an emphasis, and the spy makes the following instructions its circuit:

(1), the cardinal principle of voltage stabilizing:

The pressure regulation triode has adopted to be penetrated with output, and very strong negative feedback is arranged, in case after line parameter circuit value is determined, adjust pipe and just can be stabilized on the concrete numerical value, and this numerical value can satisfy the requirement of institute's distribution subset.

(2), the reason that has good anti-lightning effect: when thunderbolt is arranged; usually be that power supply is perishable the time; and in thunderbolt, the pressure of gushing of generation at first is to appear at rectification output, if in time rectification output is dissolved; then it gushes pressure and can not be delivered in the subsequent conditioning circuit; and why the present invention can have good effect to mainly contain 3 points, the one, to take a sample in the output terminal of rectification, and this end is that overvoltage shows " first order "; so in case send out and overvoltage, protect the sensitiveest.The 2nd, the means of dissolving are rear class to be adopted the mode of open circuit, can not be delivered to rear class so pressure is gushed in the thunderbolt of stopping, the 3rd, and active in the circuit has been adopted high countervoltage triode, lightning protection to cross to press.Relevant principle analysis is as follows:

The first, the overvoltage protection part is by the triggering part 303,304 in the accompanying drawing 6, " protection triode " 305, and complex function element 306 forms jointly.

The protection philosophy that forms is:

When not producing overvoltage, the threshold voltage that the voltage of rectification output can breakdown triggering part stabilivolt (among Fig. 5 302) is so " protection triode " is in cut-off state.Power supply is exported design voltage through after adjusting pipe (Figure 30 7 in 5) pressure regulation.

When causing rectification output end overvoltage voltage or serious overvoltage if be struck by lightning; can exceed the threshold voltage that triggers stabilivolt (among Fig. 5 302); there is this moment electric current to flow into the base stage of protection triode; the protection triode will be in and amplify or state of saturation; exchange the base current shunting of homogeneous tube (among Fig. 5 307); this pipe emitter-base bandgap grading output voltage is changed to reducing direction; form protection from face; overvoltage is higher, and output voltage is less, so the dynamics of protection is larger; find out formed protection from inner; the protection that becomes " open circuit " direction with the electrical equipment of joining, and the short-circuit protection that unlike anti-thunder tube, forms, the negative effects that this protection produces is better.

The automatic recovery of protection system after the thunderbolt: voltage recovers normal after the thunderbolt; the threshold voltage of the voltage stabilizing diode of base loop that at this moment can not the breakdown protection triode; the protection triode reverts to again cut-off state automatically, and whole system reverts to again the working condition that does not have overvoltage.

The second, when overvoltage not, " protection triode " triggers stabilivolt with peripheral element and all is in cut-off and open-circuit condition, only just rises just open-mindedly when thunderbolt or overvoltage, so do not have " electrical wear " in normal condition, can not damage.Constantly all be in a kind of " armed state ".This protection reliability is very high.

Three, adjusting pipe is that the high inverse-voltage tube lightning protection effect is good.

Its reason is, this pipe oppositely suctions through voltage usually at hundreds of volts, and 78 serial back-pressures are generally 30 volts.To exceed more than 10 times than 78 series commonly used.

(3), form the overcurrent protection principle: when output current is excessive; adjust the resistance drop increase that the pipe emitter is connected; when surpassing certain value; diode current flow in the overcurrent protection branch road; flow into output voltage and adjust the base current minimizing of pipe; load overcurrent is super many, and the base current that then reduces is more, automatically forms to exchange the homogeneous tube protection.

(4), the reason that can not damage circuit in the higher place of civil power and period: be high inverse-voltage tube because adjusting pipe, although the voltage of bridge-type output this moment is high, also can be far below the high inverse-voltage tube withstand voltage.

(5), can be in the main cause of the lower place of civil power and period work: the one, the pressure regulation triode in the circuit, can not produce the additional electrical pressure drop, directly the bridge rectifier output voltage is adjusted into output voltage, namely be as long as bridge-type voltage is higher than output voltage, just can make triode work, just can voltage stabilizing.(illustrate: if the input voltage expansion scheme that adopts traditional triode to connect with three end integrated circuit, must three end integrated circuit the normal operation required voltage, also need the triode operating voltage simultaneously, main product has been given birth to triode supplementary loss voltage like this.Be when civil power is low, after bridge-type output must deduct this supplementary loss voltage, be only the input effective voltage of three end integrated circuit.And when civil power was low, this was valuable voltage.) it two is to be high inverse-voltage tube because adjusting pipe, so can design the bridge-type output voltage higherly when design, when civil power was low, at this moment bridge-type voltage can not be very low, just can do certain compensation.

(6), can expand the reason of civil power variation range: owing to upper two reasons, do not damage circuit when civil power is high, and when low, still can work.So can expand widely the working range that civil power changes.

(7), can adjust the reason of different output voltage stabilizing values.Because in reference voltage the first branch road, the pressure drop of voltage stabilizing diode is leading role, so can form coarse adjustment, and the shared ratio of the resistance of going here and there is very little, so also can do the usefulness of accurate adjustment, the benefit of accurate adjustment is can the furnishing normal voltage required to the accumulator floating charge, such as 6.6 volts; 12.8 volt, etc.

(8), adopted measure three after, perishable voltage stabilizing diode in the protection transistor base loop has been carried out backing up (in the accompanying drawing 6 303), improved reliability.The parameter value of 302 and 303 these voltage stabilizing diodes of two is different in the accompanying drawing 6, and a stabilivolt voltage stabilizing value is low, and a stabilivolt voltage stabilizing is high.The principle that forms is when forming protection, at first is low being opened of voltage stabilizing value, becomes work the first element, and high one of voltage stabilizing then is backup, and after the first component wear (open circuit), backing up pipe will come into operation automatically.

After the invention process, following outstanding advantage is arranged:

1, improves the defence rank, more paid attention to the idea of putting prevention first.Can prevent the symptom of a trend that much may occur in advance.The reason one that why can reach this purpose is, hand rigidly connects when touching locking closure, and (it is reported, be the main channel of committing a crime at present by cracking the lockhole crime) may be the beginning that the heart of crime has just been arranged only, if stopped immediately crime, can not produce such or such consequence.The 2nd, this caution will produce very large pressure at heart to the criminal's, because the criminal knows very well that this distance from " succeeding " is also far, if crime continues to affirm that " risk " is very large.

2, single for alarm, kept all advantages of existing warning product.

3, after the invention process; anti-theft safety door and alarm have been realized the combination of science; the advantage that has possessed two kinds of protectors; usually both can keep the people outside the door; when running into other people and committing a crime; can send two kinds of cautions; to increasing " the initiatively protectiveness " of anti-theft safety door; (its implication is; function of the present invention will suppress the crime behavior generation; and whether waiting for passively its destruction) all be very significant, the situation of the passive defence of anti-theft safety door so this product is through with has fully promoted security personnel's performance of anti-theft safety door all sidedly.

The switch of 4, pacifying in the measure scheme one is the key component that warning of the present invention starts, and also is a bright spot of putting of the present invention, because after the existing achievement of this part and inventor cooperatively interacts, it is more scientific that warning of the present invention has been accomplished, also is the place different from a lot of alarms, and its reason is:

The one, can generation not make us terrified wrong report, this is the most important.Its reason is, the door that is absent from the scene of owner is opened (opening with improper door) within doors, or opens the door by lockhole with ' key ', all is crime behaviors, and warning at this moment all is very significant.

The 2nd, very reliable because the opening the door at closing time of normal life, do not need artificial additional move, do not affect the normal habits and customs of people, thus do not affect the each starting of security system normal operation.

5, the pre-warning line of touch road is sensitive and reliable, and the one, in the line owing to adopted emitter follower input, improved the input internal resistance, so touch signal is easily taked.The 2nd, the amplifying circuit that is comprised of a plurality of not gates has higher enlargement factor.The 3rd, circuit is simplified, and this part adopts an integrated circuit 4069 just can implement.The 4th, power amplifier is served as by a plurality of not gates, has stronger power, and reliable.The 5th, this circuit is strong from motion tracking in addition, and autoshutdown after hand leaves is opened in pre-caution automatically when hand contact lockhole early warning signal takes out sheet.

6, used the benefit of timing self-lock switch: the one, relaxed the requirement to switch, reduce the difficulty that switch is installed, increase the attractive in appearance of door.The 2nd, improved sensitivity and the reliability of the starting of reporting to the police.

7, sound system is convenient to implement, and circuit is simplified, and structure does not take between the limited appearance of door, use more convenient, the acoustic alarm successful of generation.

8, used power supply of the present invention has following benefit:

(1), lightning protection and overvoltage protection are effective.Reason one is in thunderbolt during overvoltage, is at first gushing cut down output first order rectification output living starting protection immediately, and starting is sensitive; The 2nd, the protection that rear class is formed in when protection is to change to the open circuit direction, shoves when very large in thunderbolt, can not cause the infringement to prime; The 3rd, there is source protection highly sensitive; because the collector load of protection triode namely is to adjust the upper inclined to one side resistance of pipe, this numerical value is thousands of Europe, triggers door if overpressure value surpasses; the protection transistor base slightly has electric current, and this pipe becomes magnifying state or saturated immediately.The 4th, protection is large, significantly shunts because will exchange the homogeneous tube base current after the conducting of protection triode, until close output end voltage fully.The 5th, automatically form protection during overvoltage, and after the transient state peak, automatically recover.So at thunderstorm season, institute's adapted equipment is difficult for damaging, and can not quit work because of thundery sky, if be used on security personnel's product, guaranteed that " security personnel " do not produce blank, this is with three traditional end integrated circuit or traditional triode and the co-design of three end integrated circuit, is difficult to realize.

(2), adapt to widely, than traditional stabilized voltage supply wider adaptive faculty is arranged, at the voltage height that meets accident, can not damage.And also can work in voltage lower place and period.

(3), there is the voltage stabilizing value of decimal in available adjustment output generation, be convenient to the floating charge of accumulator science.Has simultaneously overcurrent protection.Be fruitful or other electronic products have excellent performance after supporting.

(4), active not fragile, adjust triode and adopted high back-pressure high power valve, reliability generally all is much higher than three end integrated circuit.The protection triode is being in open-circuit condition often without overpressure situation, does not produce electrical wear.

(5), the cost of the co-design of cost and traditional triode and three end integrated circuit, substantially do not increase, and cheap more a lot of than a lot of professional stabilized voltage supplys.

(6), simple in circuits, easily produce and debugging, reason one is because the debug point in the circuit is few.The 2nd,, very easy quantification.The debugging scope is loose.

Description of drawings

Fig. 1 is that the present invention warns circuit diagram in advance.

Among the figure: 3, early warning signal extension line; 102, signal input stage emitter follower; 103, the amplifier sensitivity adjustment resistance that first order not gate forms in amplifier stage; 105, first order not gate in amplifier stage; 107, the amplifier sensitivity adjustment resistance that the final stage not gate forms in amplifier stage; 108, final stage not gate in amplifier stage; The 109 electronic switch level that is formed by not gate, both power amplifier levels; 111, sound system.

Fig. 2 is the logical diagram of implementing measure 3 of the present invention.

Among the figure: 3, early warning signal extension line; 102, signal input stage emitter follower; 103, the amplifier sensitivity adjustment resistance that first order not gate forms in amplifier stage; 104, the amplifier sensitivity adjustment resistance that second level not gate forms in amplifier stage; 105, first order not gate in amplifier stage; 106, second level not gate in amplifier stage; 107, the amplifier sensitivity adjustment resistance that final stage (third level) not gate forms in amplifier stage; 108, final stage not gate (third level) in amplifier stage; 109 electronic switch that is formed by not gate, both power amplifier levels; 110, another not gate of measure 3 described composition electronic switches; 111, sound system.

Fig. 3 is electronic timing formula on-off circuit figure.

Among the figure: 47, travel switch extension line; 49, lockhole switch extension line; 50, travel switch lead-in wire connecting electronic timing on-off circuit or gate diode; 51, lockhole switch leads connecting electronic timing on-off circuit or gate diode; 52, input resistance; 53, NPN amplifying triode; 54, the commissure resistance between two amplifier tubes; 55, anti-remaining resistance; 56, PNP three utmost point amplifier tubes; 57, isolating diode; 58, discharge resistance; 59, feedback capacity; 60, discharge resistance; 61, feedback resistance; 62 feedback diodes; 63, steady resistance; 70, wireless remote control radiating circuit; 71, another electrochemical capacitor that forms electrodeless electric capacity.

Fig. 4 is the sound system wiring diagram.

Among the figure: 75, electronic timing formula on-off circuit output; 98, power amplifier level output; 198, the power amplifier level connect sound system or gate diode; 199, electronic timing formula on-off circuit output connecting sound equipment system or gate diode; 201, pronunciation sheet; 202, enlargement factor adjusting resistance; 203, operational amplifier; 206, audio frequency adjusting resistance; 207 commissure electric capacity; 205, loudspeaker.

Fig. 5 is the open type power circuit diagram.

Among the figure: 301, rectification output; 302, with the triggering stabilivolt of door; 303, the stabilivolt diode of the parallel connection of " backup "; 304, trigger protection resistance; 305, overvoltage protection triode; 306, adjust the upper inclined to one side resistance of pipe; 307, adjust pipe; 308, output voltage accurate adjustment resistance; 309, output voltage coarse adjustment stabilivolt; 310, the supporting diode of overcurrent protection; 311, the supporting resistance of overcurrent protection; 312, power supply output.

Fig. 6 is that each several part concerns block diagram.

Among the figure: 701, open type power supply; 702, early warning signal takes out sheet; 706, warn in advance circuit; 703, lockhole switch; 704, travel switch; 705, electronic timing formula on-off circuit; 111, sound system.

Embodiment

Fig. 1 to Fig. 6 has described implementation example of the present invention jointly.

One, pre-caution signal is installed and is taken out sheet and alarming starter.

1, adopt sheet metal to extrude " Bottle cap structure spare " and " ring flange ", wherein; " Bottle cap structure spare " area becomes early warning signal greater than lockhole and takes out sheet, and " Bottle cap structure spare " attack the negative and positive screw thread mutually with " ring flange ", makes " Bottle cap structure spare " can be with the method screw-in " bottleneck structure spare " of rotation.

When 2, installing, " ring flange " tried to get to the heart of a matter is affixed on the door its hollow lockhole that exposes." ring flange " is screwed on the door.

3, the lockhole switch is fixed on the bar printing plate allows switch and printed panel become one, draw line connecting electronic operation circuit from the lockhole switch contact.

The printed panel that 4, will be fixed with the lockhole switch is placed on " ring flange " hollow position, with the button cover of lockhole switch to the bottle cap face.

5, rotation " Bottle cap structure spare ", and allow this part capping compressing live lockhole shift knob change contact contact situation.

6, travel switch is contained in first in the box.

7, box is screwed in the door again.

8, with wire the travel switch contact is drawn.

Two, the enforcement of electronic timing formula on-off circuit: press Fig. 3 welding.Travel switch is connected respectively a diode cathode with lockhole switch contact extension line, and two diode cathodes are connected together and become or door, are connected to the input of electronic timing formula on-off circuit.Adjust feedback capacity, allow feedback time reach requirement.

Three, implement pre-caution part.

1, select 4069 integrated circuit as active of not gate.

2, weld pre-caution amplifier section according to Fig. 2.

3, the early warning signal of lockhole is taken out sheet and connect lead-in wire, the other end of this lead-in wire is connected on the base stage of early warning amplifying circuit emitter follower.

4, the electronic switch both output terminal of power amplifier level is welded on the power supply of gender neutral language.

5, sound system is by welding shown in Figure 4.

Four, implement the warning part.

The lead-in wire of travel switch in the alarming starter and lockhole switch is connected on the input of electronic timing formula on-off circuit, and the output of electronic timing formula switch is connected on the electronic switch of alarm sound.

Five, the enforcement of open type power supply:

1, selected element, wherein triode is selected high back-pressure high power valve, such as 3DD15; If press Fig. 5 welding, wherein the voltage stabilizing value of element 303 should be higher than 302 voltage stabilizing value; Diode is preferably selected the face bonded type diode.

2, press the wiring diagram welding of Fig. 5.

3, adjust the power supply output valve.Adjusting pipe base stage stabilivolt value namely is the coarse adjustment of output voltage, uses the resistance of going here and there as accurate adjustment, its rule be the stabilivolt value more high output voltage is higher, resistance is larger, output voltage is higher, otherwise lower.

4, adjust the overvoltage protection parameter.The transformer primary side that breaks is connected on source of stable pressure output with oscillographic, clicks rectifier terminal with 100 volts DC voltage, and oscilloscope display output reduces to zero substantially by normal voltage, and after 100 volts high pressure removed, the voltage point recovered normally.Otherwise should adjust the voltage stabilizing parameter value with the voltage stabilizing diode of door in the overvoltage protection transistor base loop.

Six, the relation of each several part as shown in Figure 6.

Claims (7)

1. use widely touch alarm, it is characterized in that: by the open type power supply, early warning signal takes out sheet, the early warning electronic circuit, and alarming starter, electronic timing formula on-off circuit, several parts of sound system form jointly:

Wherein: the open type source of stable pressure is the triode by defencive function, and the triode of voltage-regulation voltage-stabilization function and related peripheral part combine:

Rectification output has outwards connected three the tunnel, and wherein the first branch road has connected the positive pole of voltage stabilizing diode, the negative pole of this a stabilivolt resistance R 1 rear base stage that has connected a protection triode by name of having connected; The second branch road is to have connected a collector of adjusting triode by name; The 3rd branch road is to have connected a resistance in the base stage of adjusting triode;

The emitter of adjusting triode has been connected after the resistance R 2, becomes the last output terminal of power supply;

It is to have connected second voltage stabilizing diode and resistance R 3 series circuit ground connection that the base stage of adjustment triode has also connected following the three tunnel: the first branch road; The second branch road of base stage is the overcurrent protection branch road that has connected several diodes series connection, and base stage links to each other with this bypass diodes positive terminal, the linked to each other last output terminal of power supply of the negative pole end of diode; The 3rd branch road of base stage is the anode that has connected the protection triode; Emitter grounding;

The grounded emitter of protection triode;

It is to have made the bottle cap shape by a sheet metal that early warning signal takes out sheet, and docking is a kind of ring flange with it, and ring flange is installed in lockhole place on the antitheft door, bottle cap with lockhole is covered fully after ring flange docks, will warn in advance signal with wire and draw;

The early warning electronic circuit is by prestage, amplifier stage, and electronic switch level three parts form:

Prestage is that the end with wire is connected in early warning signal and takes out on the sheet, and the other end of wire is connected on the base stage of a triode, and the collector of this triode is by on system power supply, and emitter connects the input end of amplifier stage;

Amplifier stage is made of with peripheral element jointly a plurality of not gates: link to each other with output terminal with a plurality of not gate input ends, it is the input that has connected second not gate with the output of first not gate, such as the form that is connected in series of many not gates of method generation, every not gate input has been connected a resistance with output terminal; Connected the input of first not gate with the prestage transistor emitter, the output of last not gate is the output of amplifier stage;

The electronic switch level is that the input end with several not gates connects together, and becomes this input end, and several non-gate output terminals connect together, and become output terminal at the corresponding levels, and the input end of this grade is connected in the output terminal of amplifier stage, and output terminal has connected the sound system power supply;

Alarming starter is made of a travel switch and lockhole switch:

The lockhole switch is mounted in the hollow position of ring flange, and early warning signal takes out under the sheet, with screw early warning signal is taken out sheet and docks with ring flange, and early warning signal takes out the button that the lockhole switch is lived in the sheet compressing; The input that is connected to electronic timing formula on-off circuit is drawn in the contact of lockhole switch with wire;

Travel switch is mounted in door and doorframe junction, when door and doorframe close close after, the button of travel switch is lived in the doorframe compressing, with going between the input that is connected to electronic timing formula on-off circuit is drawn in the contact of travel switch;

Electronic timing formula on-off circuit is: with the base stage that has connected a NPN triode after the series connection of resistance of vibration transducer output extension line process, the grounded emitter line of this triode, the base stage of this NPN triode, the other end ground wire of this resistance have been connected with an end of a resistance; The connected rear base stage that connects a PNP triode of another resistance of the collector of this NPN triode, the emitter of PNP triode has connected 12 volts of power supplys, connected the emitter of PNP pipe with an end of another resistance, the other end of this resistance has connected the base stage of PNP pipe; Connected the collector of PNP pipe with a utmost point of an electric capacity, this electric capacity has been connected the base stage of NPN pipe in addition behind resistance of extreme series connection and the diode cathode; Another utmost point of this electric capacity has also connected an end of another resistance, the other end ground connection of this resistance; This PNP transistor collector has connected the power input of wireless remote control radiating circuit;

The power supply that has connected sound system behind the alarming starter process timing self-locking switch circuit;

Sound system is: the positive terminal of operational amplifier is received in the output of pronunciation sheet, the end of oppisite phase ground connection of operational amplifier, the output of operational amplifier has connect two-way, one the tunnel has connected an end of audio frequency adjusting resistance, the audio frequency adjusting resistance other end connects audio frequency and adjusts electric capacity, and audio frequency is adjusted electric capacity other end ground connection, and another road has connected the positive pole of commissure electric capacity, commissure electric capacity negative pole extremely links to each other with one of loudspeaker, another utmost point ground connection of loudspeaker.

2. use according to claim 1 touch alarm widely, it is characterized in that: the operational amplifier in the sound system is integrated circuit 386.

3. use according to claim 1 touch alarm widely, it is characterized in that: the voltage stabilizing diode that the first branch road of rectification output connects in the open type source of stable pressure, be to be formed in parallel by two stabilivolts, the parameter of the voltage stabilizing value of two stabilivolts is different.

4. use according to claim 1 touch alarm widely, it is characterized in that: the number of diodes of adjusting pipe base stage connected overcurrent protection branch road in the open type source of stable pressure is two.

5. use according to claim 1 touch alarm widely, it is characterized in that: the amplifier stage in the early warning electronic circuit is to be formed by two to three not gate strings, electronic switch is that output terminal and the input end by three to four not gates connects together respectively, and not gate adopts integrated circuit 4069.

6. use according to claim 1 touch alarm widely, it is characterized in that: the feedback capacity in the electronic timing formula on-off circuit is the form that is in series into electrodeless electric capacity with two capacitance cathodes.

7. use according to claim 1 touch alarm widely, it is characterized in that: the lockhole switch is a pocket buttons switch.

Images