CN203444582U - Multifunctional safety door with telephone alarm - Google Patents

Abstract

The utility model relates to a multifunctional safety door with telephone alarm, belonging to the field of security technology. The multifunctional safety door is composed of a touch sheet, a bridge early-warning unit, an alarm starting unit, an on-site alarm unit and an information processing device, wherein the touch sheet is mounted on the door to cover both a lockhole and a lockhole switch in the alarm starting unit. When someone tries to crack the lockhole, touched touch signal is generated once the touch sheet is touched, and the bridge early-warning unit amplifies the signal and reliably starts the on-site alarm unit to prevent cracking; and if cracking is not prevented, the lockhole switch generates an alarm starting signal once the touch sheet is loosened, the on-site alarm unit and a multicode emission circuit are started to emit an alarm signal, and the information processing device timely notifies people not at home. A reception interface circuit in the information processing device is an integrated circuit, a telephone set can be used for common communication when there is no accident, and living habits of a family are not influenced. The multifunctional safety door with telephone alarm further improves the performance of alarm products, and increases the types of the alarm products.

Description

Multifunction electric telephone alarm safety door

Technical field

Belong to safety technique field.

Background technology

Society is in development, and science is improving, and rhythm of life is being accelerated, present people go out work, study, amusement, situation unmanned in family happens occasionally, and this is just for person who is ambitious or tenacious of purpose provides convenience, busy generation in family, and personnel cannot know outside, the consequence of generation is very serious.

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 to produce a very large benefit be because there is a 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 wireless remote control, but present wireless remote control volume is all solid size, faces the interference source that the upper various remote control electrical appliances of society form, and which type of is encoded just can be stopped these interference, and this is also people's difficult 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

The weakness existing for making up alarm, 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 initiatively effectively notify in time personnel outside, thereby enrich the new protector kind of outstanding warning performance.Antitheft series products is obtained further perfect.

The technical solution used in the present invention is:

1, multifunction electric telephone alarm safety door is by touch sheet, electric bridge prewarning unit, and warning start unit, onsite alarming unit, signal conditioning package forms jointly.

Warning start unit is by lockhole switch and multi-code transmitter the electric circuit constitute.

Lockhole switch is arranged on lockhole top, touch sheet below, and touch sheet is fixed on the button that door is oppressed lockhole switch after upper, and lockhole switch contact is drawn with wire, connects onsite alarming unit and multi-code transmitter start-up circuit.

Multi-code transmitter circuit is in the multichannel output with transmitting programme control circut, to connect respectively the input of a phase inverter, the output of each phase inverter, the chip select end that has connected the integrated circuit of a coding, the output of the integrated circuit of polylith coding connects respectively the input of multiterminal or door, the output of multiterminal or door, after a resistance, is connected to the base stage of radiating circuit modulation triode.

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, and emitter-base bandgap grading has been connected after a resistance 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 pipe that forms power amplifier, the base stage that forms the PNP pipe 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 pipe of power amplifier, the PNP pipe that forms power amplifier manages with NPN the commissure electric capacity of central point series winding that emitter is connected, 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.

Signal conditioning package is to draw 3 groups of totally 6 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, outwards export another termination of 3 groups of all 6 lead-in wires, interface circuit is that the tip side of inner 3 electronic switches of interface integrated circuit connects 3 groups of 6 lead-in wires that drawn from telephone set pad, the control end of inner 3 electronic switches of interface integrated circuit connects 3 outputs that receive programme control circut.

2,4 capacitance parameters that connect in the preposition unit of bridge type are consistent, and adopt high-tension electric capacity.

3, lockhole switch is travel switch.

What 4, in onsite alarming, loudspeaker were selected is internal magnetization loudspeaker.

5, in multi-code transmitter circuit, coding integrated circuit used is three.

6, 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.

7, the receiving interface circuit in signal conditioning package is the integrated circuit 4066 of use.

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 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 multi-code transmitter scheme, had important meaning, main benefit is to be difficult for producing malfunction.Structure of the present invention is that warning starting switch is lockhole protection switch, has further to employ, and the moving switch contact of touch sheet souththern pine is just subjected to displacement, and sends the command of execution of having reported to the police, and Telephone set just starts telephone call within doors.Owing to producing telephone call, be a very serious thing, if wrong report, unnecessary terrified by causing, consequence is very serious.And use now the apparatus of remote control many, as locking that car door is protected, with release etc., all want straighforward operation, just formed possible interference source.And adopt the many yards of artificial interferences that just can thoroughly stop afterwards this class.Otherwise having had after multi-code transmitter circuit, must be non-normal door if there is alarm call, so greatly improved the confidence level that the present invention reports to the police.Its principle that this circuit is realized multi-code transmitter is; When the first end of programme control circut is exported a high position, it is low that the phase inverter output connecting makes the chip select of this coding integrated circuit of connected, this chip select work of institute, and remaining sheet is not worked.Be output as when high when second, in like manner only have corresponding section's chip select work.The 3rd, the 4th reason is the same.Due to each coding integrated circuit with or a door mode be input to modulator tube, so form the form of multi-code transmitter.

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 receives that ground has after the signal of ponding, 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, transmitting is used many yards, has stopped to exist various electrical equipment to disturb in society.

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; 390, lockhole; 391, the printed panel of welding lockhole switch; 392, the fixing screw of touch sheet; 393, lockhole switch; 395, lockhole switch extension line; 397, anti-theft safety door.

Fig. 3 is multi-code transmitter circuit diagram.

In figure: 601, transmitting programme control circut; 602, transmitting programme control circut the first output; 603, transmitting programme control circut the second output; 604, transmitting programme control circut the 3rd output; 605, transmitting programme control circut first the first phase inverter that output connects; 606, transmitting programme control circut second the second phase inverter that output connects; 607, transmitting programme control circut the 3rd the 3rd phase inverter that output connects; 608, first coding integrated circuit chip select end; 609, second coding integrated circuit chip select end; 610, the 3rd coding integrated circuit chip select end; 611, first coding integrated circuit; 612, second coding integrated circuit; 611, the 3rd coding integrated circuit; 614, the output of first coding integrated circuit or door; 615, the output of second coding integrated circuit or door; 616, the output of the 3rd coding integrated circuit or door; 617, current-limiting resistance; 618, modulation triode.

Fig. 4 is onsite alarming circuit diagram.

In figure: 17, bridge type early warning amplifying unit output; 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, reception program control circuit; 704, reception program is controlled output the first output; 705, reception program is controlled output the second output; 706, reception program is controlled output the 3rd output; 709, the interface circuit between reception 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; 715, Hands-free key; 716, store a key; 717, store two keys; 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; 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; 710, Hands-free key lead-in wire; 711, store a key lead-in wire; 712, store two key lead-in wires.

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 and has been connected multi-code transmitter starting circuit end and onsite alarming with wire.

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

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 contacting when coverage sheet on lockhole is touch sheet, do not penetrate with being output as low level with device in hand, 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 respectively in audio amplification circuit with the output of electronic self-locking circuit.

Four, by Fig. 3, implement multi-code transmitter circuit, with first output of transmitting programme control circut, connect first phase inverter input in integrated circuit, this phase inverter output connects the chip select end of first coding integrated circuit, the modulation output connection of this coding integrated circuit or an input of door, as method connects the output of transmitting programme control circut second, another input of this modulation output connection or door, or connect the modulation transistor base in radio transmitter circuit after the output resistance in series of door.

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

1, with one, there are 2 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 these 3 groups totally 6 lead-in wires, be connected to 3 electrical switch contacts ends of interface integrated circuit 4066 inside.

6, with the control end that receives 3 program control output connecting interface integrated circuit 4066 inner 3 electronic switches.When connecting, Hands-free key connects the first output, and be linked in sequence first and second stores key later.

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

8, by the telephone set lid involution of dismounting.

Five, 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.

Six, each several part relation as shown in Figure 7.

Claims (7)

1. multifunction electric telephone alarm safety door, 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 by lockhole switch and multi-code transmitter the electric circuit constitute;

Lockhole switch is arranged on lockhole top, touch sheet below, and touch sheet is fixed on the button that door is oppressed lockhole switch after upper, and lockhole switch contact is drawn with wire, connects onsite alarming unit and multi-code transmitter start-up circuit;

Multi-code transmitter circuit is in the multichannel output with transmitting programme control circut, to connect respectively the input of a phase inverter, the output of each phase inverter, the chip select end that has connected the integrated circuit of a coding, the output of the integrated circuit of polylith coding connects respectively the input of multiterminal or door, the output of multiterminal or door, after a resistance, is connected to the base stage of radiating circuit modulation triode;

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, and emitter-base bandgap grading has been connected after a resistance 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 pipe that forms power amplifier, the base stage that forms the PNP pipe 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 pipe of power amplifier, the PNP pipe that forms power amplifier manages with NPN the commissure electric capacity of central point series winding that emitter is connected, 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,

Signal conditioning package is to draw 3 groups of totally 6 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, outwards export another termination of 3 groups of all 6 lead-in wires, interface circuit is that the tip side of inner 3 electronic switches of interface integrated circuit connects 3 groups of 6 lead-in wires that drawn from telephone set pad, the control end of inner 3 electronic switches of interface integrated circuit connects 3 outputs that receive programme control circut.

2. multifunction electric telephone alarm safety door 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.

3. multifunction electric telephone alarm safety door according to claim 1, is characterized in that: lockhole switch is travel switch.

4. multifunction electric telephone alarm safety door according to claim 1, is characterized in that: what in onsite alarming, loudspeaker were selected is internal magnetization loudspeaker.

5. multifunction electric telephone alarm safety door according to claim 1, is characterized in that: in multi-code transmitter circuit, coding integrated circuit used is three.

6. multifunction electric telephone alarm safety door 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.

7. multifunction electric telephone alarm safety door according to claim 1, is characterized in that: the receiving interface circuit in signal conditioning package is the integrated circuit 4066 of use.

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