CN203444584U - Electronic early-warning alarm - Google Patents

Abstract

The utility model relates to an electronic early-warning alarm, belonging to the field of electronic technology. The alarm is composed of a touch sheet, a bridge early-warning unit, an alarm starting unit, an onsite alarming unit and an information processing device. When someone tries to crack a lockhole, a touch signal is generated once the touch sheet is touched by hand, the touch signal is amplified by the bridge early-warning unit, and the onsite alarming unit is reliably started for prevention; and if cracking is not prevented, a lockhole switch and a radio remote-control emission circuit in the alarm starting unit are started, the lockhole switch protects the lockhole again, contacts of the lockhole switch are changed once the touch sheet is loosened so that an alarm starting signal is generated to start the radio remote control emission circuit to emit an alarm signal, and the information processing device timely notifies related people. An external sucker antenna is used in radio remote-control emission, so that the emission sensitivity is improved, alarm is more accurate and reliable, and performance of antitheft products is further improved.

Description

A kind of early warning type electronic sentry

Technical field

Belong to electronic technology field.

Background technology

Security personnel set up the most important basis of safety society, how to perfect the perfect of security system, are a kind of demands of social progress.Present people go out work, study, amusement, situation unmanned in family happens occasionally, this is just for person who is ambitious or tenacious of purpose provides convenience, if someone commits a crime to antitheft door, oneself do not know, and neighbours likely do not know, this is obviously by the leak becoming on security personnel, how to make up this leak, obviously become security personnel's a difficult problem.

The kind of alarm is a lot of at present, but most products all exists following deficiency: only have in flagrant delict and just producing onsite alarming, and can not likely crime just start just give a warning, so just produced the shortcoming of two aspects, the one, easily produce consequence, after door is pried open, even if there is responding sound, also likely produce and continue stolen result, the 2nd, the onsite alarming at this moment producing also can cause surrounding not peaceful terrified.If imagination just starts crime, just sound a warning, can not only overcome above-mentioned 2 deficiencies, and can also produce very large benefit: have very large lead, can make criminal understand and early have within doors preparation, thereby can receive as early as possible hand, thereby become a kind of " protection initiatively ", this protection, but solve " initiatively " protection, produced again a new difficult problem: how to reach alarm and there is lead? and there is lead, which type of method to improve the dynamics of reporting to the police by again? how initiatively effectively to notify in time personnel outside, for a long time, such difficult problem can not be properly settled all the time.

Far distance controlled be unable to do without radio remote control technology, and although present radiotelegraphy is very extensive, but its sensitivity can't reach requirement of the present invention, because the remote control distance of general application is closer, far it doesn't matter, well-known remote control distance and weather, furnish with thing within doors (transmitted wave is had, covered etc.), all be relative, and if Ben Ming sensitivity is not high, can not overcome above-mentioned impact, just can not guarantee the reliable of reception, therefore will have what kind of receiving lines, also become very large problem.

Exactly because above-mentioned difficult point, so present antitheft series products is also not very outstanding, solve the above problems, and also requires further study.

Summary of the invention

Fundamental purpose of the present invention is to make full use of the existing patent of inventor and technological achievement, a kind of new technical measures are proposed again, the feature of this measure is just, to have had the beginning of crime, or the preparatory stage, can send immediately a kind of pre-warning, prevent, and the personnel outside of active announcement, crime behavior is proposed to warning immediately simultaneously, thereby the function of antitheft series products is advanced.

The technical solution used in the present invention is:

1, electronic sentry is by a touch sheet, electric bridge prewarning unit, and warning start unit, onsite alarming unit, signal conditioning package forms jointly.

Warning start unit is comprised of lockhole switch and wireless remote control radiating circuit.

Lockhole switch is arranged on lockhole top, touch sheet below, touch sheet is oppressed the button of lockhole switch after being fixed on door, lockhole switch contact is drawn with wire, connect onsite alarming unit and wireless remote control transmitter trigger circuit, magnet segment is fixed in touch sheet, between magnet and touch sheet, has insulant.

Wireless remote control radiating circuit is to consist of radio transmitter circuit and copper foil antenna:

Its shape of copper foil antenna is English lower case n shape, antenna Copper Foil width is 2mm, left and right is the Copper Foil of two vertical parallel shapes, Copper Foil length is 30mm, distance 20 mm between the Copper Foil of two vertical parallel shapes, and the Copper Foil top of two vertical parallel shapes connects with arc Copper Foil kiss, the arc Copper Foil height that kiss connects two vertical parallel shape Copper Foils is 4.5mm, the Copper Foil of two the vertical parallel shapes in left and right is copper foil antenna input end on one side, i.e. power input, and another side is copper foil antenna output terminal.

Wireless remote control radiating circuit is: copper foil antenna input end connects Liao San road: the first via is the termination, one side that has connected a resistance, and another termination of resistance has connected the base stage of vapotron.

The second tunnel is to have connected an electric capacity, and the another side of electric capacity connects the emitter of vapotron.

Third Road is to have connected another electric capacity, and the another side of this electric capacity has connected the collector of vapotron, is also the output terminal of copper foil antenna.

Copper foil antenna input end has also connect a termination of a crystal oscillator, and a termination in another two terminations of crystal oscillator has connect the base stage of power valve, and another termination has connect the emitter of vapotron.

It is right that the output of coding integrated circuit has connected one side of a modulated resistance, the base stage of modulated resistance other end connection modulator tube, and the grounded emitter line of modulator tube, modulator tube collector is connected with vapotron emitter.

The live wire end of coding integrated circuit is controlled by transmitter trigger circuit.

Bridge type prewarning unit by transformer unit, the preposition unit of bridge type, penetrate with isolated location, amplifying unit and form.

With transformer unit, connected the preposition unit of bridge type, the preposition unit of bridge type has connected to be penetrated with isolated location, penetrates with isolated location and has connected amplifying unit, and amplifying unit has connected onsite alarming unit; With the wires touch sheet sheet metal of ining succession, the other end of this metal wire has connected the preposition unit of bridge type after having connected a commissure electric capacity.

The connection of transformer unit is; The positive pole that connects respectively two diodes with the secondary two ends of transformation, secondary center is taken out and is closed ground connection, after the negative pole of two diodes links together, has connected two-way, and the first via has connected working power, the second tunnel has connected the positive pole of an electric capacity, the minus earth of this electric capacity.

The preposition unit of bridge type, is comprised of 4 diodes and 4 electric capacity; With two diode D1 and D2, be composed in series a new branch road, with another two diode D3 and D4, be composed in series another new road, with the positive pole of these two new branch roads, be connected to, negative pole links together, become a kind of bridge rectifier circuit, wherein use the tie point in two diode D1 and D2 series arm, as the outside output terminal in the preposition unit of bridge type, with the tie point in another two diode D3 and D4 series arm, connect ground wire.

With electric capacity C1 and C2, one end connect the positive terminal of bridge rectifier circuit, the other end of capacitor C 1 has connected one end of primary, the other end of capacitor C 2 has connected the other end of primary; The one end that has connected again two capacitor C 3 and C4 in one end of the negative pole of bridge rectifier element, capacitor C 3 other ends have connected one end of primary, and the other end of capacitor C 4 has connected the other end of primary.

Penetrate with isolated location, a triode and a resistance, consist of, by the base stage of the triode in this grade, connected the output terminal of the preposition unit of bridge type, the collector of this pipe connects power supply, after a resistance of emitter series connection as output terminal at the corresponding levels.

Amplifying unit, by first NPN triode and second PNP triode, jointly formed, with first transistor base, connect and penetrate the output terminal with isolated location, grounded emitter, collector has been connected and has been connected the base stage of second triode after a resistance, the emitter of second triode connects power supply, and collector is as output terminal at the corresponding levels; This output terminal has connected onsite alarming unit.

The one end that has connected touch sheet with a wires, the other end has been connected to have connected after an electric capacity and in the preposition unit of bridge type, has been connected two utmost point positive terminals.

Onsite alarming unit is the base stage that the output of voice sheet has connected preposition amplifier tube, the grounded emitter of preposition amplifier tube, collector is connected in the base stage of the PNP triode that forms power amplifier, the base stage that forms the PNP triode of power amplifier has also connect one end of power amplifier level pull-up resistor, the pull-up resistor other end connects to form the base stage of the NPN triode of power amplifier, the commissure electric capacity of central point series winding that the PNP triode of composition power amplifier is connected with NPN transistor emitter, one end of another termination loudspeaker of commissure electric capacity, the other end ground wire of loudspeaker, the NPN pipe Integrated electrode that forms power amplifier is received on the electronic switch of shooting with video-corder control module.

Advise By Wire device is to draw 4 groups of totally 8 lead-in wires from a telephone set dialing button printed panel Copper Foil matrix, wherein the termination, one side of first group two lead-in wires is connected with corresponding two Copper Foils of hands-free button, the termination, one side of two lead-in wires of second group is connected with corresponding two Copper Foils of storage one key, the termination, one side of two lead-in wires of the 3rd group two Copper Foils corresponding with storing two keys are connected, and outwards export another termination of 4 groups of all 8 lead-in wires.Receiving interface circuit unit is to connect from the tip side of 4 electronic switches of IC interior 4 groups of 8 lead-in wires that drawn from telephone set pad, and the control end of inner 4 electronic switches of interface integrated circuit connects 4 outputs that receive programme control circut.

2, lockhole switch is dry-reed tube switch.

3,4 capacitance parameters that connect in the preposition unit of bridge type are consistent, and adopt high-tension electric capacity.

4, in onsite alarming, form the NPN triode of power amplifier and PNP triode be all withstand voltage be the large power triode of 100V.

5, in signal conditioning package telephone set lead-in wire be first by wire bonds on weld tabs, then weld tabs is sticked on telephone key rosette copper paper tinsel.

6, wireless remote control transmitting is that the copper foil antenna output terminal in printed panel is that high-frequency emission pipe collector place has increased an electric capacity, one end of electric capacity is that high-frequency emission pipe collector is connected with copper foil antenna output terminal, and the electric capacity other end is connected with transmitting external antenna.

7, wireless remote control transmitting external antenna is sucker antenna.

For having a clear understanding of the meaning of the technical program, first will make the following instructions:

It one is that normal door is opened the door without mechanical key that inventor has been fruitful, but the mode of opening the door with electronics telecontrol engineering or phone.When normal door, be installed on the propulsion system in door, will promote lockset action, realization is opened the door.Meanwhile, still retained the form that mechanical key opens the door, its objective is and when automatic system goes wrong, can have a kind of opening the door to make up.This be if opened the door with mechanical key, and great majority are to want by joining the situation of mechanical key crime, are also the situations that needs telephone call.And a few cases is own oneself to want the situation of opening the door with mechanical key because electrical equipment goes wrong, but this situation is own clearly situation on the scene, produces alert sound oneself and does not also feel fearful and nervous.

Have identification circuit, can correctly identify is the situation of crime behavior or owner's normal door.Its reason is that the behavior of opening the door is normally to open the door by electronic technology, rather than opens the door with mechanical key.When normal method is used electronic open-door, identification circuit input has electronic signal, and the input of crime behavior identification circuit is without electronic signal, will start warning system.

For this reason, the existing meaning to each technical measures of the present invention, concrete condition is further explained as follows:

One, the present invention design is that a kind of band has levels and has the alarming device of several functions.

(1), the first level is pre-warning: fundamental purpose is to prevent the heart that has crime, or firm crowd when bud.Function is to rigidly connect and touch above lockhole after cover plate at the hand when crime, sound system will send pre-warning, this warning is more neutral, as the sound can send " please noting ", or the language such as " please not staying at this " is prevented, by the benefit of gender neutral language, be to may criminal causing very large psychological pressure, but can not damage being not intended to person, to neighbours, more can not cause in terror, because causing consequence, pre-warning and crime also have very large gap, can produce so very large benefit, be to produce pressure very greatly at heart to criminal, the generation of pre-warning can make him know clearly, in room, early there is preparation, if continued, must there is " below " waiting for, by have thereby hint obliquely at later difficult, probably impel it to stop as early as possible, halt at this point, so played the initiatively effect of protection.

(2), the protection of the second level is warning device; mainly the criminal for the pre-warning of not preventing, if think formal damage lock port lid, while entering house by cracking lockhole; to be subjected to displacement by the shift knob of lockhole cap lower compression, and send formal warning enabling signal.

Electronic self-locking circuit has been used in the startup of reporting to the police, and its benefit one is the requirement of having relaxed switch, is 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.The 2nd, improved sensitivity and the reliability of the starting of reporting to the police.Because principle of the present invention is, when its people has when cracking lockhole or having the action that barbarous mode forces open the door, alarming starter action, sends warning initiating signal.

Two, pre-warning produces principle and effect:

1, touch principle: when no touch signal, the bridge diagram no-output that four electric capacity in communication channel form, the preposition unit of bridge type, no-output.When having touch signal, the bridge diagram parameter generation great change that former four electric capacity form, has alternating current output, has passed through by diode D1, D2, D3, after the rectification circuit that D4 forms, has direct current output, through penetrating with isolated location, amplifying unit has finally encouraged onsite alarming unit after amplifying, thereby has produced the various effects that various functional units produce.

2, circuit is outstanding reliable: sensitive reliable.

(1), the preposition unit of bridge type, performance is good: its reason is when no touch signal, 4 capacitance parameters of electric bridge are consistent, internal current balance, the output of bridge-type output terminal no signal, after hand contact chip, there is serious variation in the capacitance parameter that contains touch sheet end, so output terminal has signal output, bridge diagram and bridge rectifier circuit all belong to the classical circuit in circuit, theoretical show with test, and this circuit has very high sensitivity, and circuit is very reliable and stable, for the present invention has established fine basis.

(2), isolated location played matching effect well between the preposition unit of bridge type and amplifier stage, further promoted the performance of measure of the present invention.This grade of the first has very high input impedance, played good buffer action in two-stage.It two is that output impedance is low, and the excitation of rear class is had to very strong surplus.

(3), amplifier stage has outstanding performance.In this grade of unit of the first, the door of NPN triode input is very low, only has 0.7 volts.The 2nd, second three utmost point of this grade have very strong amplifying power, because NPN triode and PNP triode have formed complementary relationship, and the 3rd, second PNP triode of amplifier stage has very strong carrying load ability, formed the form of electronic switch.

(4) it is that operating voltage can have relatively wide scope that, in the present invention active all adopts the benefit of triodes, thereby can save mu balanced circuit in working power, and its benefit has two, the first, and circuit simplifies, more reliable.The secondth, if while adopting three end contain integrated regulator, when civil power changes when too high, fragile.

(5), when no touch signal, system power saving has also reduced having " electrical wear " of element, the reliability of having promoted circuit from another angle simultaneously.

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

The one, can generation not make us terrified wrong report, this is the most important.Its reason is, the door that owner is absent from the scene is within doors opened (with improper, opening), or opens the door by lockhole with ' key ', is all crime behaviors, and warning is now all 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, thereby do not affect the normal operation of the each starting of security system.

The 3rd, warning starting switch is sensitive and reliable, can when crime behavior is not accomplished, just not report to the police, thereby loss is reduced to minimum.The initiating signal of reporting to the police because the switch contact when lockhole cap is becoming flexible on lockhole will change.

Four, in onsite alarming, by a triode, formed the prestage that sound equipment amplifies, by a PNP and NPN triode, formed complementary circuit audio frequency has been carried out to power amplifier, when having pre-alarm signal, the power supply of having opened this part is controlled in its output, so have voice to produce, due to this electric circuit constitute be an OTL rather than OCL circuit, so debugging is simple, and have element not perishable, and the higher advantage of efficiency.

Five, in technical scheme 1, implemented wireless remote control launch scenario; there is important meaning; structure of the present invention is that warning starting switch is lockhole protection switch; have further moving; the moving switch contact of touch sheet souththern pine is just subjected to displacement; send the command of execution of having reported to the police, Telephone set just starts telephone call within doors.If remote control be subject to weather and surrounding environment influence large, if can not notify in time personnel outside when there is something special, that is very serious, description of test, the distance of radio controlled transmitting with when same circuit size have much relations.Because it has a great impact with reliability the stable of radio ttransmitter and receiver.Therefore copper foil antenna has been made English lower case n shape, antenna Copper Foil width is 2mm, left and right is the Copper Foil of two vertical parallel shapes, Copper Foil length is 30mm, article two, 20 mm of the distance between the Copper Foil of vertical parallel shape, the arc Copper Foil height that kiss connects two vertical parallel shape Copper Foils is 4.5mm, input at copper foil antenna increases an electric capacity over the ground in addition, the output of copper foil antenna is that collector and the transmitting of vapotron increased a coupling capacitor between external antenna, transmitting external antenna sucker antenna, improve transmitting sensitivity, allow and can realize well and mating between transmitting and reception.

Six, in signal conditioning package, have two kinds of electronic circuits, a kind of is radio reception circuit, and the wireless remote control that its energy reliable reception sends from user transmits; Another kind is to receive programme control circut, connects the extension line from telephone key rosette copper paper tinsel, allows the number of storing in telephone set transfer to successively.

In the common communication telephones in market, generally all have a number storage function, it is easy to use that telephone set designs the telephone number that is with often puts through of argument of this function, its reason is if be stored in after the storage key in telephone set often dialling plane No. code in advance, putting through while often dialing, a plurality of keys should be dialled and the mode of the code of long number could be transferred to, become and only press the simple and direct form that a key just can be transferred to multidigit number, thereby use very convenient, because there is such characteristic, thereby created important prerequisite for receiver section implementing measure of the present invention, the present invention utilizes this characteristic exactly, in advance in phone, all telephone numbers of litigant have within doors been stored, radio system is received after the signal that wireless remote control sends, started reception program control circuit, with it, replace traditional manual dial's mode, this also becomes the important foundation of phone transmission of information for the present invention.

Seven, adopt 4066 as telephone set lead-in wire and the interface circuit that receives programme control circut, to be connected with following benefit:

(1), volume is little, because just include 4 electronic switches for one 4066, thereby same function can only just can complete compared with the integrated circuit of small size with one, because reception programme control circut is to be contained in telephone set, obvious whole printed circuit board area is less, is conducive to install.

(2), when receiving programme control circut and not working, the electronic switch of 4066 IC interiors is not worked, the extension line of telephone set does not produce any negative interaction to telephone set, telephone set can normal talking.And while receiving programme control circut work, telephone set is produced to correct logic.

After the invention process, anti-theft security goalkeeper presents a kind of brand-new looks, has following outstanding advantage:

1, 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 people can be kept outside the door; when running into other people and committing a crime; can send two kinds of warnings; to increasing " the initiatively protectiveness " of anti-theft safety door; (its implication is; function of the present invention will suppress crime behavior generation; and whether waiting for passively that it destroys) and be all very significant, the situation of the passive defence of anti-theft safety door so this product is through with completely, has promoted security personnel's performance of anti-theft safety door all sidedly.

2, Forewarning Measures performance is outstanding reliable, can guarantee this functional effect.Reason one is highly sensitive, can guarantee that early warning system will be started immediately when having people to want to destroy lockhole.The 2nd, load capacity is strong, thereby various effect can fully demonstrate, and the 3rd, circuit is reliable, not fragile.

3, warning system partial properties is very excellent, for alarm, is most valuable, embodies in the following areas:

The one, warning system can not reported by mistake completely.Because after coordinating with existing achievement, there is automatic recognition property.The warning producing when owner is absent from the scene may be only crime behavior.Otherwise the behavior of not committing a crime, switch can not send signal, at this moment because the structures shape of switch is installed.Due to the intrinsic property of switch, when being subject to compressing and not suffering oppression, shift knob there is to occur the variation of contact.

The 2nd, reliable, its reason one is, user is closing the door when opening without any need for other additional move, thereby warning system is at any time all in a kind of " highly waiting " state, do not need any preliminary work, the 2nd, the malfunctioning chance of mechanical switch is far superior to electronic component.

The 3rd, easy to use.After installation, do not affect normal habits and customs completely.If increased trouble with former life, the shortcoming of obviously bringing to people is or is to use inconvenience, or forgotten necessary operation and bring the malfunction of warning or malfunctioning.

The 4th, protection is tight, has laid special stress on protecting the practice that cracks lockhole.

The 5th, telephone set can, as warning device, general time, be exactly common communication telephones when there is something special.

4, wireless remote control transmitting is specific a kind of copper foil antenna, and used external sucker antenna, having improved transmitting sensitivity, transmitting can be mated better with reception.

Accompanying drawing explanation

Fig. 1 is that electric bridge of the present invention is warned basic diagram in advance.

In figure: 01, the primary side of transformer; 02, the out secondary of transformer; 03, full-wave rectification diode; 04, rectifying and wave-filtering electric capacity; 05, touch sheet; 06, commissure electric capacity; 07, the electric capacity in electric bridge one; 08, the electric capacity in electric bridge two; 09, the electric capacity in electric bridge three; 10, the electric capacity in electric bridge four; 11, the rectifier cell in electric bridge; 12, penetrate with isolated location; 13, protective resistance; 14, first triode in amplifying unit; 15, the commissure resistance of two triodes in amplifier stage; 16, second triode in amplifying unit; 17, bridge type early warning amplifying unit output.

Fig. 2 is the scheme of installation of touch sheet and lockhole switch.

In figure: 05, touch sheet; 387, the screw hole in touch sheet; 388, magnet segment; 390, lockhole; 391, the printed panel of welding lockhole switch; 392, the screw of fixing welding lockhole switch printed panel; 393, lockhole switch; 395, lockhole switch extension line; 396, the fixing screw hole of touch sheet on anti-theft safety door; 397, anti-theft safety door.

Fig. 3 is wireless remote control radiating circuit figure.

In figure: 49, transmitter trigger circuit; 50, coding integrated circuit; 51, modulated resistance; 52, modulator tube; 53, vapotron; 55, crystal oscillator; 57, the newly-increased ground capacitance of copper foil antenna input; 58, copper foil antenna; 59, the coupling capacitor between high-frequency emission pipe collector and external antenna; 60, shielding line; 62, launch external sucker antenna.

Fig. 4 is onsite alarming circuit diagram.

In figure: 17, bridge type early warning amplifying unit output; 395, lockhole switch extension line; 301, neutral voice sheet; 302, preposition amplifier tube; 303, preamplifier state load dual-use function resistance; 304, the PNP pipe that forms power amplifier; 305, the NPN pipe that forms power amplifier; 306, commissure electric capacity (OTL circuit capacitance); 308, loudspeaker.

Fig. 5 is signal conditioning package schematic diagram.

In figure: 701, receiving antenna; 702, radio system; 703, receive programme control circut; 704, receive program control output the first output; 705, receive program control output the second output; 706, receive program control output the 3rd output; 707, receive program control output the 4th output; 709, receive the interface circuit between program controller and telephone set; 710, Hands-free key lead-in wire; 711, store a key lead-in wire; 712, store two key lead-in wires; 713, store triple bond lead-in wire; 715, Hands-free key; 716, store a key; 717, store two keys; 718, store triple bond; 720, other useless button on keyboard; 721, telephone key dish.

Fig. 6 is receiving interface circuit diagram in massaging device of the present invention.

In figure: 703, receive programme control circut; 704, receive programme control circut output the first output; 705, receive programme control circut output the second output; 706, receive program control output the 3rd output; 707, receive programme control circut output the 4th output; 709, receive the interface circuit between program controller and telephone set; 206, inner first electronic switch of interface integrated circuit 4066; 207, inner second electronic switch of interface integrated circuit 4066; 208, inner the 3rd electronic switch of interface integrated circuit 4066; 209, inner the 4th electronic switch of interface integrated circuit 4066; 710, Hands-free key lead-in wire; 711, store a key lead-in wire; 712, store two key lead-in wires; 713, store triple bond lead-in wire.

Fig. 7 is that each several part is related to block diagram.

In figure: 05, touch sheet; 290, the pre-warning circuit of electric bridge; 393, lockhole switch; 256, multi-code transmitter circuit; 291, onsite alarming unit; 258, signal conditioning package.

Embodiment

Fig. 1,2,3,4,5,6,7 has described specific embodiment of the invention example.

One, according to Fig. 2 embodiment, the cover plate of covering lockhole being installed, is also touch sheet and the lockhole switch in indication function.

1, with a hard material, be processed into and strike out the touch sheet larger than lockhole.

2, the periphery in touch sheet spiles, and the place punching that touch sheet is installed at shop front lockhole is corresponding with it, the mounting hole tapping of the shop front.

4, between touch sheet and door, add hollow cushion ring, allow hollow place expose lockhole.

5, touch sheet is fixed in the shop front.Fixedly time, should notice between touch sheet and door fixedly time that pad last layer insulant is as plastic washer.

6, with one end of a wire, connect touch sheet, the other end has connected the electric bridge being positioned in door and has warned in electronic circuit in advance.

7, lockhole switch is welded on a bar printing plate, the printed panel that has welded switch is fixed on door lock hole.

8, lockhole switch contact is drawn start-up circuit and the onsite alarming that has connected wireless remote control transmitting with wire.

9, touch sheet is oppressed lockhole shift knob after fixing.

10, magnet segment is fixed in touch sheet, and has insulant between touch sheet, its fixing optimum position after touch sheet is fixing, the nearest position that magnet is relative with lockhole switch.

Two, installation and debugging bridge type early warning circuit;

1, selectors; The preposition unit of bridge type electric capacity used adopts withstand voltage high electric capacity kind.Bridge diode in electric bridge also should select the kind that back-pressure grade is high.Onsite alarming unit can be selected one, or two, or a plurality of etc., can be selected by the requirement of oneself, as onsite alarming, telephone call, automatic camera etc. function.

2, welding: weld according to Fig. 1.

3, debugging:

(1), test and the adjustment preposition unit of bridge type: with the voltage gear of multimeter, survey and penetrate penetrating with output with triode in isolated location, when hand contacts coverage sheet on lockhole and is touch sheet, emitter follower is not output as low level, below 0.5 volt, and integrated circuit the 2nd pin should be exported a high position when hand contacts the coverage sheet on lockhole, whether equally the nonconforming emphasis of answering changes four capacitance values of electric bridge, if desired, the capacity inspection of available electric bridge to four electric capacity, whether the same referring to seeing number.

Test and adjustment amplifier stage unit: with the voltage between PNP transistor emitter in this grade of voltage detecting of multimeter and collector, when prestage integrated circuit no-output, voltage should be supply voltage substantially, and while having touch signal, voltage should be less than 0.5 volt nonconformingly should adjust the commissure resistance between two triodes in this grade.

Three, the enforcement of onsite alarming unit: weld audio amplification circuit by shown in Fig. 4, electric bridge early warning is amplified to output and be connected in audio amplification circuit.

Four, by Fig. 3, implement wireless remote control transmitting, copper foil antenna is strictly set on request, launches external sucker antenna and is connected with shielding line with wireless remote control radiating circuit.

Five, implement signal conditioning package within doors: as shown in Figure 5.

1, with one, there are 3 telephone set transformations of storing number ability, first telephone set is taken apart, expose the printed panel corresponding with keyboard.

2, by two wire bonds on weld tabs, weld tabs sticks on keyboard when Hands-free key is pressed on corresponding two Copper Foils that connect of its conductive rubber.

3, by two wire bonds on weld tabs, when weld tabs sticks on and stores a key on keyboard and press on corresponding two Copper Foils that connect of its conductive rubber.

4, by two wire bonds on weld tabs, when weld tabs sticks on and stores two keys on keyboard and press on corresponding two Copper Foils that connect of its conductive rubber.

5, by two wire bonds on weld tabs, when weld tabs sticks on and stores triple bond on keyboard and press on corresponding two Copper Foils that connect of its conductive rubber.

6,, by these 4 groups totally 8 lead-in wires, be connected to 4 electrical switch contacts ends of interface integrated circuit 4066 inside.

7, with the control end that receives 4 program control output connecting interface integrated circuit 4066 inner 4 electronic switches.When connecting, Hands-free key connects the first output, and be linked in sequence first, second and third stores key later.

8, the output of radio system is connected on the starting end that receives programme control circut.

9, by the telephone set lid involution of dismounting.

Six, Detection and adjustment onsite alarming unit effect:

When hand contact touch sheet, on-the-spot early warning should be sent early warning sound, and when hand leaves touch sheet, corresponding function should stop, otherwise should adjust the adjustment part in corresponding unit.

Tooth, each several part relation are as shown in Figure 7.

Claims (7)

1. an early warning type electronic sentry, is characterized in that: by touch sheet, and electric bridge prewarning unit, warning start unit, onsite alarming unit, signal conditioning package forms jointly;

Warning start unit is comprised of lockhole switch and wireless remote control radiating circuit;

Lockhole switch is arranged on lockhole top, touch sheet below, touch sheet is oppressed the button of lockhole switch after being fixed on door, lockhole switch contact is drawn with wire, connect onsite alarming unit and wireless remote control transmitter trigger circuit, magnet segment is fixed in touch sheet, between magnet and touch sheet, has insulant;

Wireless remote control radiating circuit is to consist of radio transmitter circuit and copper foil antenna:

Its shape of copper foil antenna is English lower case n shape, antenna Copper Foil width is 2mm, left and right is the Copper Foil of two vertical parallel shapes, Copper Foil length is 30mm, distance 20 mm between the Copper Foil of two vertical parallel shapes, and the Copper Foil top of two vertical parallel shapes connects with arc Copper Foil kiss, the arc Copper Foil height that kiss connects two vertical parallel shape Copper Foils is 4.5mm, the Copper Foil of two the vertical parallel shapes in left and right is copper foil antenna input end on one side, i.e. power input, and another side is copper foil antenna output terminal;

Wireless remote control radiating circuit is: copper foil antenna input end connects Liao San road: the first via is the termination, one side that has connected a resistance, and another termination of resistance has connected the base stage of vapotron;

The second tunnel is to have connected an electric capacity, and the another side of electric capacity connects the emitter of vapotron;

Third Road is to have connected another electric capacity, and the another side of this electric capacity has connected the collector of vapotron, is also the output terminal of copper foil antenna;

Copper foil antenna input end has also connect a termination of a crystal oscillator, and a termination in another two terminations of crystal oscillator has connect the base stage of power valve, and another termination has connect the emitter of vapotron;

It is right that the output of coding integrated circuit has connected one side of a modulated resistance, the base stage of modulated resistance other end connection modulator tube, and the grounded emitter line of modulator tube, modulator tube collector is connected with vapotron emitter;

The live wire end of coding integrated circuit is controlled by transmitter trigger circuit;

Bridge type prewarning unit by transformer unit, the preposition unit of bridge type, penetrate with isolated location, amplifying unit and form:

With transformer unit, connected the preposition unit of bridge type, the preposition unit of bridge type has connected to be penetrated with isolated location, penetrates with isolated location and has connected amplifying unit, and amplifying unit has connected onsite alarming unit; With the wires touch sheet sheet metal of ining succession, the other end of this metal wire has connected the preposition unit of bridge type after having connected a commissure electric capacity;

The connection of transformer unit is; The positive pole that connects respectively two diodes with the secondary two ends of transformation, secondary center is taken out and is closed ground connection, after the negative pole of two diodes links together, has connected two-way, and the first via has connected working power, the second tunnel has connected the positive pole of an electric capacity, the minus earth of this electric capacity;

The preposition unit of bridge type, is comprised of 4 diodes and 4 electric capacity; With two diode D1 and D2, be composed in series a new branch road, with another two diode D3 and D4, be composed in series another new road, with the positive pole of these two new branch roads, be connected to, negative pole links together, become a kind of bridge rectifier circuit, wherein use the tie point in two diode D1 and D2 series arm, as the outside output terminal in the preposition unit of bridge type, with the tie point in another two diode D3 and D4 series arm, connect ground wire;

With electric capacity C1 and C2, one end connect the positive terminal of bridge rectifier circuit, the other end of capacitor C 1 has connected one end of primary, the other end of capacitor C 2 has connected the other end of primary; The one end that has connected again two capacitor C 3 and C4 in one end of the negative pole of bridge rectifier element, capacitor C 3 other ends have connected one end of primary, and the other end of capacitor C 4 has connected the other end of primary;

Penetrate with isolated location, a triode and a resistance, consist of, by the base stage of the triode in this grade, connected the output terminal of the preposition unit of bridge type, the collector of this pipe connects power supply, after a resistance of emitter series connection as output terminal at the corresponding levels;

Amplifying unit, by first NPN triode and second PNP triode, jointly formed, with first transistor base, connect and penetrate the output terminal with isolated location, grounded emitter, collector has been connected and has been connected the base stage of second triode after a resistance, the emitter of second triode connects power supply, and collector is as output terminal at the corresponding levels; This output terminal has connected onsite alarming unit;

The one end that has connected touch sheet with a wires, the other end has been connected to have connected after an electric capacity and in the preposition unit of bridge type, has been connected two utmost point positive terminals;

Onsite alarming unit is the base stage that the output of voice sheet has connected preposition amplifier tube, the grounded emitter of preposition amplifier tube, collector is connected in the base stage of the PNP triode that forms power amplifier, the base stage that forms the PNP triode of power amplifier has also connect one end of power amplifier level pull-up resistor, the pull-up resistor other end connects to form the base stage of the NPN triode of power amplifier, the commissure electric capacity of central point series winding that the PNP triode of composition power amplifier is connected with NPN transistor emitter, one end of another termination loudspeaker of commissure electric capacity, the other end ground wire of loudspeaker, the NPN pipe Integrated electrode that forms power amplifier is received on the electronic switch of shooting with video-corder control module,

Advise By Wire device is to draw 4 groups of totally 8 lead-in wires from a telephone set dialing button printed panel Copper Foil matrix, wherein the termination, one side of first group two lead-in wires is connected with corresponding two Copper Foils of hands-free button, the termination, one side of two lead-in wires of second group is connected with corresponding two Copper Foils of storage one key, the termination, one side of two lead-in wires of the 3rd group two Copper Foils corresponding with storing two keys are connected, and outwards export another termination of 4 groups of all 8 lead-in wires;

Receiving interface circuit unit is to connect from the tip side of 4 electronic switches of IC interior 4 groups of 8 lead-in wires that drawn from telephone set pad, and the control end of inner 4 electronic switches of interface integrated circuit connects 4 outputs that receive programme control circut.

2. a kind of early warning type electronic sentry according to claim 1, is characterized in that: lockhole switch is dry-reed tube switch.

3. a kind of early warning type electronic sentry according to claim 1, is characterized in that: 4 capacitance parameters that connect in the preposition unit of bridge type are consistent, and adopt high-tension electric capacity.

4. a kind of early warning type electronic sentry according to claim 1, is characterized in that: in onsite alarming, forming the NPN triode of power amplifier and PNP triode and be all withstand voltage is the large power triode of 100V.

5. a kind of early warning type electronic sentry according to claim 1, is characterized in that: in signal conditioning package telephone set lead-in wire be first by wire bonds on weld tabs, then weld tabs is sticked on telephone key rosette copper paper tinsel.

6. a kind of early warning type electronic sentry according to claim 1, it is characterized in that: wireless remote control transmitting is that the copper foil antenna output terminal in printed panel is that high-frequency emission pipe collector place has increased an electric capacity, one end of electric capacity is that high-frequency emission pipe collector is connected with copper foil antenna output terminal, and the electric capacity other end is connected with transmitting external antenna.

7. a kind of early warning type electronic sentry according to claim 1, is characterized in that: wireless remote control transmitting external antenna is sucker antenna.

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