CN204926381U - Take precaution device of self -checking - Google Patents
Take precaution device of self -checking Download PDFInfo
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- CN204926381U CN204926381U CN201520726273.4U CN201520726273U CN204926381U CN 204926381 U CN204926381 U CN 204926381U CN 201520726273 U CN201520726273 U CN 201520726273U CN 204926381 U CN204926381 U CN 204926381U
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Abstract
The utility model provides a take precaution device of self -checking, belongs to the technical field of security, bi -polar quick -break protection monitoring steady voltage source, the touch piece, the integrated early warning circuit that enlargies, the lockhole switch, on -the -spot alarm is constituteed jointly, touch piece ann is on the lock hole, cover lockhole and lockhole switch together, attempt commit a crime through the lockhole when someone, the firm touch piece of hand just produces the touch signal, the touch signal gets into integrated form early warning circuit, enlarge the back by the early warning circuit, it carries out the early warning and shows the prevention reliably to start on -the -spot alarm, fail to prevent, the souththern pine moves the touch piece, lockhole switch contact changes and produces and report to the police to start the on -the -spot alarm of signal openning and advance to produce and report to the police, the cooperation is the monitor, again the protector simultaneously, can also steady voltage bi -polar quick -break protection monitoring steady voltage source, form a take precaution device of self -checking, prevent with regard to producing the warning at the beginning of preparing the crime, not fragile precaution device, the further performance that promotes the theftproof product.
Description
Technical field
Belong to safety technique field.
Background technology
For a long time, security personnel allow burglary-resisting installation be the emphasis that people study, and perfecting of it allows people work contentedly, the key of relieved leisure.
One family, the most basic security personnel's equipment is door, it is the main portions that isolated stranger enters house, but only only have the passive protection of door to be far from being enough, so be more coordinate with alarm, but the startup of alarm is but failed and the behavior synchronization of committing a crime, just just start to start among crime or after having had case and report to the police, cannot with regard to early warning at the beginning of crime, and when committing a crime, produce warning, likely create serious consequence, and the form of such anti-theft safety door passive type protection, how to allow people work feel at ease, travel relieved? so allow, namely report to the police be just produce to report to the police when just there being crime behavior to prevent in advance, extremely be necessary, so crime behavior has just been had just to produce prevention of reporting to the police offender, increase the psychological pressure of suspect, receive hand in advance, reduce the generation of serious consequence, but how to reach alarm and there is lead? for a long time, such difficult problem can not be properly settled all the time.
It is supporting with it that each electronic product needs an outstanding power supply, the product of class of particularly ensuring public security, just very high to the requirement of power supply, and overcritical degree will far away higher than ordinary electrical home appliance, is inefficient by traditional design proposal.How power failure or because of unexpected make rectifier output voltage too high time, power supply and equipment are not damaged to use certain means to ensure, this is the emphasis of a research, how can learn failure problems in time, this is again an emphasis, if can monitor at any time, learn in time, such power supply is all extremely outstanding power supply for any product, particularly antitheft series products is needed especially, it not only needs round-the-clock awaiting orders, more need start in time when there being event, if there is damage, and user cannot learn, because can not detect by simulated accident constantly, thus cannot notify when event occurs in time or report to the police, the consequence produced is hardly imaginable, therefore, band monitoring property, the power supply of protection is had extremely to be necessary.
Society is in development; science is improving; the new product that market more needs anti-theft safety door to combine with alarm; anti-theft safety door can initiatively be protected, and allowing reports to the police produces in advance, reduces the generation of serious consequence; but address this problem the compound needing multiple technologies; need the innovation of technology, therefore, the security performance of anti-theft safety door also treats further lifting.
Summary of the invention
In order to promote the performance of anti-theft security door product; fundamental purpose of the present invention utilizes prior art achievement; new measure is proposed; with be monitor; be simultaneously again protector, the both-end fast tripping protection monitoring source of stable pressure of voltage stabilizing can also match, form a kind of precaution device with self-inspection; prevent with regard to producing warning at the beginning of preparation crime, promoting the performance of anti-theft product further.
The technical solution used in the present invention is:
1, the precaution device with self-inspection monitors source of stable pressure, a touch sheet by both-end fast tripping protection, and integrated amplification early warning circuit, lockhole switch, onsite alarming device forms jointly.
Wherein: both-end fast tripping protection monitoring source of stable pressure is made up of jointly lightning arrester, front end overvoltage monitoring startup level, fast tripping protection level, three-terminal voltage-stabilizing circuit, rear end overvoltage monitoring startup level, sound attention device.
Lightning arrester is connected between rectification output and ground wire.
Front end overvoltage monitoring starts level and is made up of door stabilivolt one, monitoring pilot lamp one, protective resistance one, starting triode, starting diode one, two clamp diodes.
Monitoring pilot lamp one is connected with protective resistance one, form front end series arm, one termination of door stabilivolt one connects rectification and exports, another termination front end series arm is to the base stage starting triode, start the grounded emitter line of triode, the positive pole of starting diode one connects quick-break silicon controlled in fast tripping protection level and controls pole, the negative pole of starting diode one connects the collector starting triode, the negative pole of two clamp diodes is all connected on the collector of starting triode, the positive pole of clamp diode one connects the serial connection point that rear end overvoltage monitoring starts the other end tandem connection monitoring pilot lamp two of feedback resistance in level, the positive pole of clamp diode two connects the collector that rear end overvoltage monitoring starts NPN control triode in level.
Fast tripping protection level is made up of quick-break controllable silicon, trigger resistance.
Trigger resistance is connected on quick-break silicon controlled anode and controls between pole, and quick-break silicon controlled anode connects rectification and exports, and quick-break silicon controlled negative electrode connects the input of three-terminal voltage-stabilizing circuit.
Rear end overvoltage monitoring starts level and is made up of door stabilivolt two, diac, protective resistance two, NPN control triode, starting diode two, PNP control triode, feedback resistance, monitoring pilot lamp two, commissure resistance.
Door stabilivolt two is connected with diac, protective resistance two; the output and the NPN that are connected on three-terminal voltage-stabilizing circuit control between the base stage of triode; commissure resistance is connected on NPN and controls the collector of triode and PNP controls between the base stage of triode; one termination PNP of feedback resistance controls the collector of triode; the other end tandem connection monitoring pilot lamp two of feedback resistance controls the base stage of triode to NPN; the positive pole of starting diode two connects quick-break silicon controlled and controls pole, and the negative pole of starting diode two connects the collector that NPN controls triode.
Between the collector that sound attention device is connected on PNP control triode and ground wire.
Namely the output of three-terminal voltage-stabilizing circuit be the output of both-end fast tripping protection monitoring source of stable pressure.
Lockhole switch is mounted in above lockhole; below touch sheet; touch sheet is fixed on the button of oppressing lockhole switch after on door; a contact wire of lockhole switch is drawn; connect the output of both-end fast tripping protection monitoring source of stable pressure, another contact power supply of wire extraction as onsite alarming device of lockhole switch.
To in succession one piece of touch sheet with a wires, contacting with the other end of this metal wire connects the low valve end of preposition integrated circuit in integrated amplification early warning circuit after a commissure electric capacity.
Integrated amplification early warning circuit is by preposition integrated circuit, integrated amplifier, control triode and drive relay jointly to form.
Touch sheet extension line connects the low valve end of preposition integrated circuit, the discharge end of preposition integrated circuit is connected with high threshold end, the direct clearing termination power of preposition integrated circuit, the control voltage termination of preposition integrated circuit produces second electric capacity of vibration to ground, the high threshold termination two-way of preposition integrated circuit, one tunnel practices midwifery the raw resistance vibrated to power supply, raw first electric capacity vibrated is practiced midwifery to ground in another road, preposition output connects an anti-interference capacitor and sensitivity adjustment resistance over the ground, the preposition output of positive termination of integrated amplifier, an indirect isolation resistance of the end of oppisite phase of integrated amplifier and the output of integrated amplifier, the base stage controlling triode connects the output of integrated amplifier, control the grounded emitter of triode, drive two line buds of relay, a line bud connects the collector controlling triode, another line bud connects power supply, the normally opened contact of relay is driven to connect power supply, the normal pin contact of driving relay is the output of integrated amplification early warning circuit.
Onsite alarming device is: the output of integrated amplification early warning circuit and the normal pin extension line of lockhole switch connect the power supply as onsite alarming device after an isolating diode respectively, the base stage of prestage amplifying triode is connected with the output of voice sheet, the collector of this triode connects two-way, one tunnel connects a collector resistance to live wire, second tunnel is connected to commissure resistance and the base stage being connected power tube after the parallel circuit of commissure electric capacity, the collector series connection lotus root of power tube closes resistance with after the part in parallel of coupling capacitor, is connected to loudspeaker.
2, in integrated amplification early warning circuit, preposition integrated circuit is NE555.
3, the loudspeaker internal resistance in onsite alarming device is 8 Ω.
4, in both-end fast tripping protection monitoring source of stable pressure, the power of two door stabilivolts is 1W.
5, both-end fast tripping protection monitoring source of stable pressure in start triode withstand voltage >=100V.
For having a clear understanding of the meaning of the technical program, first will make the following instructions:
Inventor has achievement technology without mechanical key when being normal door, but by the mode that electronics telecontrol engineering or phone open the door, when normal door, is installed on the propulsion system in door, will promotes lockset action, realization enabling.But remain the mode that mechanical key opens the door, break down when avoiding electronic telecontrol or phone to open the door, can also open the door, so lockhole covers, and this situation to be oneself on the scene, even if so produce alert sound also can not feel alarmed.
There is identification circuit, correctly can identify it is the situation of crime behavior or owner's normal door.Its reason is the behavior of opening the door normally is open the door by electronic technology, instead of opens the door with mechanical key.During normal method electronic open-door, identification circuit input has electronic signal, and Activity recognition circuit input of committing a crime 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 explained as follows further:
One, power supply is the key of each electronic equipment, particularly anti-stealing safety product, so spy makes the following description to power supply.
Power supply in this measure is that realize can voltage stabilizing; monitoring and protecting can be formed again at the input end of three-terminal voltage-stabilizing circuit and output terminal both-end; while the series of advantages ensureing three-terminal voltage-stabilizing; fast tripping protection is implemented at the two ends of three terminal regulator; monitor constantly; there are being thunderbolt or unexpected overvoltage; also or three damageds on end bad; fast tripping protection can be started in time, and initiatively prompting, the prompting effect of formation sound and light; reduce the failure rate that power supply produces; formation is monitor, is simultaneously again protector, can also the power supply of voltage stabilizing.
(1), both-end fast tripping protection monitoring source of stable pressure both-end fast tripping protection monitoring source of stable pressure monitored by lightning arrester, rectification circuit, front end overvoltage start level, fast tripping protection level, three-terminal voltage-stabilizing circuit, rear end overvoltage monitor start level, sound attention device forms jointly.Overvoltage monitoring in front end starts protected level when level and fast tripping protection level are rectification output overvoltages under anti-lightning or fortuitous event, because although three-terminal voltage-stabilizing circuit voltage regulation result is good, but its input terminal voltage can not more than 36V, once overvoltage, will damage, therefore coordinated with fast tripping protection level by front end overvoltage monitoring startup level, form the protection to three-terminal voltage-stabilizing circuit input end, it is the monitoring and protecting formed for three-terminal voltage-stabilizing circuit itself that rear end overvoltage monitoring starts level, it also coordinates with fast tripping protection level, fast tripping protection is formed when there is something special, so be the stabilized voltage supply possessing the monitoring of both-end fast tripping protection.
(2), front end overvoltage forms the principle that monitoring, fast tripping protection and active are pointed out.
Front end overvoltage monitoring starts level and is made up of door stabilivolt one (103 in Fig. 2), monitoring pilot lamp one (104 in Fig. 2), protective resistance one (105 in Fig. 2), starting triode (106 in Fig. 2), starting diode one (107 in Fig. 2), two clamp diodes.
1, pressure is gushed when rectification has; door stabilivolt one conducting; start triode saturated; the silicon controlled of clamper quick-break immediately controls pole; produce fast tripping protection; clamp diode two (109 in Fig. 2) clamper rear end overvoltage monitoring simultaneously in two clamp diodes starts NPN in level and controls the collector of triode (116 in Fig. 2), and the collector impelling PNP to control triode (118 in Fig. 2) produces high pressure, makes sound attention device (122 in Fig. 2) send prompting.
2, because trigger resistance (111 in Fig. 2) resistance of quick-break controllable silicon (110 in Fig. 2) is very large, all can trigger when hundreds of K, as long as so debugged the resistance of protective resistance one, just can cause starting triode saturated or to saturated change, due to quick-break silicon controlled positive feedback, so quick-break controllable silicon can towards the change of cut-off direction, (it should be noted that here, textbook is said, controllable silicon cut-off condition is when anode current reduces and is less than when maintaining electric current and can changes to cut-off direction, but concerning one-way SCR, theory and practice all illustrates, silicon controlled negative electrode is reduced to zero, controllable silicon still can be made towards the change of cut-off direction.) due to quick-break controllable silicon very fast with the response speed of starting triode, so have good protective effect.And after failure vanishes, overvoltage monitoring in front end starts level and fast tripping protection level reverts to armed state again.
3, monitoring is formed under front end produces overpressure situation; the conducting of monitoring pilot lamp one; send light; after failure vanishes; monitoring pilot lamp does not work, after failure vanishes, because the base stage trigger voltage of starting triode disappears; therefore start triode and change cut-off into again, so front end overvoltage monitoring and protecting level can self-healing.
(3), rear end overvoltage forms the principle of monitoring and fast tripping protection.
Rear end overvoltage monitoring starts level and is made up of door stabilivolt two (113 in Fig. 2), diac (114 in Fig. 2), protective resistance two (115 in Fig. 2), NPN control triode (116 in Fig. 2), starting diode two (117 in Fig. 2), PNP control triode (118 in Fig. 2), feedback resistance (120 in Fig. 2), monitoring pilot lamp two (121 in Fig. 2), commissure resistance (119 in Fig. 2).Form monitoring three-terminal voltage-stabilizing circuit, the effect that formation fast tripping protection and sound, light are warned after three-terminal voltage-stabilizing circuit damages.
1, when three terminal regulator damages; output end voltage is caused to increase; if exceeded the voltage stabilizing value of door voltage stabilizing two, make NPN control triode and changed to saturated direction by ending, owing to adding feedback circuit; therefore while pilot lamp two sends light; make NPN control triode and accelerate saturated state, it is open-minded immediately that PNP controls triode, the effect of formation sound warning; NPN controls triode clamp quick-break silicon controlled and controls pole simultaneously, forms fast tripping protection.
2, because this fault appears at three-terminal voltage-stabilizing circuit to have occurred problem, must process fault guarantee equipment can not damage, therefore can not self-healing.
(4) luminotron that monitoring pilot lamp, in front end overvoltage monitoring and protecting level one and the monitoring in rear end overvoltage monitoring and protecting level indicate two can adopt different colours; therefore judge it is that front end or rear end there occurs fault very well; also possess the prompting of sound simultaneously, to be suitable for and reliable.
Two, warn Be very effective in advance, warning device is reliable, is a kind of multi-level alarming device.
1, first level is pre-warning: mainly for the crowd of the heart having crime, room is entered when crime personnel attempt to crack lockhole, hand has just contacted touch sheet (because inventor has patent achievement technology, with opening door of remote-control, thus lockhole is covered), send pre-warning immediately, this pre-warning can be alert sound also can be gender neutral language, as " please noting " or " please not being want this again stop " etc., pressure and stopping at heart being produced to criminal, continue if make it to understand, must be lose more than gain, it is probably impelled to stop as early as possible, halt at this point, so serve the effect of initiatively protection.
2, the protection of the second level is warning device, the lockhole switch namely under touch sheet on lockhole, if want to continue to destroy lockhole, touch sheet and lockhole souththern pine move, and the shift knob at this moment by touch sheet compressing will be subjected to displacement, and send formal alerting signal.
Three, principle and the effect of pre-warning is produced.
1, the principle of early warning generation: preposition integrated circuit (06 in Fig. 3) and oscillating element form a kind of oscillatory circuit, when hand contact touch sheet, touch signal is through electric capacity, this electric capacity is the commissure electric capacity (02 in Fig. 3) between touch sheet and preposition integrated circuit, enter preposition IC interior, produce accurate vibration, cause vibration failure of oscillation or seriously change, make the OUT pin of preposition integrated circuit and preposition output (07 in Fig. 3) have high-order output.This high-order output encourages control triode (13 in Fig. 3) after integrated amplifier (12 in Fig. 3), opens and drives relay (16 in Fig. 3), starts onsite alarming device sounding.
2, integrated amplification early warning circuit is reliably outstanding:
(1), preposition integrated circuit is reliable, touch-sensitive, and in the present invention of its reason, preposition integrated circuit is not when there being touch signal, preposition integrated circuit is in vibrational stabilization state, and after having touch signal, great change inherently occurs oscillating operation condition, output terminal must have high-order output.The output terminal ground capacitance of preposition integrated circuit has interference effect, improves this grade of performance from another angle.Preposition integrated circuit is structurally being combined into of mimic channel and digital circuit, analog functuion and logic function compatibility are integrated, produce accurate vibration, a power supply can be shared with integrated amplifier, and preposition integrated circuit maximum output current selects 200mA, carrying load ability is strong, use reliable, the life-span is long.
(2), amplifier stage has outstanding performance.Amplifying circuit is made with integrated amplifier, more much bigger than the enlargement factor of discrete component, therefore when after hand contact lockhole cover plate, preposition integrated circuit has output, through the amplification of integrated circuit, and trigging control triode, start and drive relay, drive relay adhesive, drive relay adhesive contact change and start acoustics circuit, and then produce warning.
3, pre-warning is produced reliably sensitive.The sensitivity of integrated circuit adjusts very well, and sensitivity adjustment resistance (09 in Fig. 3) resistance is large, its sensitivity step-down, and resistance is little, sensitivity raises, and has very strong adjustable, compared with the amplifying circuit of discrete component, circuit is simpler, and adjust more convenient, performance is stronger.
4, the application of relay (16 in Fig. 3) is driven, enhance the reliability triggering late-class circuit (being warning circuit) here, small area analysis can be converted to big current by it, trigger late-class circuit more reliable and more stable, the normally opened contact (17 in Fig. 3) of relay is driven to connect power supply, drive the normal pin contact of relay, namely integrated amplification early warning circuit exports (18 in Fig. 3).
Four, the lockhole switch installed, stable performance, shows: one is can not produce to make us terrified wrong report, and this is the most important.Its reason is, the door that owner is absent from the scene within doors is opened (opening with improper door), is all crime behaviors, and warning is now all very significant.
Two is very reliable because normal life enabling at closing time, do not need artificial additional move, do not affect the normal habits and customs of people, thus do not affect the normal work that security system is started at every turn.
Three is that warning starting switch is sensitive and reliable, just can report to the police, thus loss is reduced to minimum when crime behavior is not accomplished.Because will to change initiating signal of reporting to the police at the switch contact of touch sheet when loosening on lockhole.
Five, acoustics circuit is made up of separation member, element is few, simple in circuits, and gain is larger, easy for installation, power tube in circuit is large power triode, and amplification effect is good, the applicable loudspeaker of pronunciation part, also be suitable for alert sound sheet, selectivity is many, and voice sheet can record some language in advance, as " please not stopping at this " or " asking speed to be left " etc.
Anti-theft safety door presents a kind of brand-new looks, has following outstanding advantage:
One, the quality of power supply, directly has influence on overall performance.Power source performance is good, then overall performance is good.Power supply be also usually the normal keypoint part damaged, so the failure rate of power supply can be greatly reduced after adopting this circuit, so be very significant.Its advantage is as follows:
1, source of stable pressure voltage regulation result is good.Can provide stable voltage, because this circuit is three end integrated stable voltage circuits, this circuit is a kind of outstanding integrated regulator, and voltage regulation result is good, and again containing multiple protection, so be a kind of outstanding mu balanced circuit.
2, reliable operation, one is three-terminal voltage-stabilizing collector is a kind of integrated stable voltage circuit of maturation, reliable operation.Two is devices that controllable silicon used in circuit and large power triode belong to ripe, because of but reliable, three is that each circuit peripheral circuit is simplified, so failure condition is few.
3, lightning protection and anti-unexpected overvoltage is effective.Add lightning arrester at rectification output end, when there being thunderbolt to gush pressure, first through lightning arrester, will shove importing ground wire, define protection.Start in level and fast tripping protection level in front end overvoltage monitoring, the triode adopted and controllable silicon have good time response, adapt to the thunderbolt of transient state and the protection of overvoltage, and triode withstand voltage are a few hectovolt, so can not damage.
4, can monitor the performance of three-terminal voltage-stabilizing circuit, form monitoring and the protection of overvoltage at the output terminal of three-terminal voltage-stabilizing circuit, after three-terminal voltage-stabilizing circuit damages, make its output voltage too high, now form fast tripping protection immediately, guarantee equipment is not damaged.
5, both-end is formed and monitors constantly, when there being fault, because the light color that the monitoring pilot lamp that two ends use sends is different, therefore judges it is which place goes wrong very well, forms the active prompting of sound simultaneously, uses more extensive.
Two, after the invention process, anti-theft safety door possesses initiatively protection, with alarm scientific matching, at ordinary times, stranger is kept outside of the door, just can send and warn prevention in advance at the beginning of having people to commit a crime, and continues crime, can send formal warning.Finish the situation of the passive defence of anti-theft safety door completely, improve security personnel's performance of anti-theft safety door all sidedly.
Three, early warning excellent performance.Reason one is highly sensitive, and can ensure that early warning system will be started immediately when there being people to want to destroy lockhole, two is embodiments that thus load capacity can ensure by force various early warning effect, and three is use reliably, and the life-span is long.
Four, warning system partial properties is very excellent, and warning system can not be reported by mistake completely.Because after coordinating with existing achievement, there is automatic recognition property.The warning produced when owner is absent from the scene may be only crime behavior.Otherwise behavior of not committing a crime, switch can not send signal, at this moment because install the structures shape of switch.Due to the intrinsic property of switch, when shift knob is being subject to oppressing and the change that contact occurs inherently to occur when not suffering oppression, lay special stress on protecting the lockhole be the most easily cracked.
Five, simple in circuits, cost is low, easy scheduling and planning.It is little that circuit accounts for area, is convenient to install.
Accompanying drawing explanation
Fig. 1 is a kind of block scheme of the precaution device with self-inspection.
In figure: 0.1, both-end fast tripping protection monitoring source of stable pressure; 0.2, integrated amplification early warning circuit; 0.3, onsite alarming device; 1, touch sheet; 5, lockhole switch.
The circuit diagram of the both-end fast tripping protection monitoring source of stable pressure that Fig. 2 is.
In figure: 100, rectification exports; 102, lightning arrester; 103, door stabilivolt one; 104, pilot lamp one is monitored; 105, protective resistance one; 106, triode is started; 107, starting diode one; 108, clamp diode one; 109, clamp diode two; 110, quick-break controllable silicon; 111, trigger resistance; 112, three-terminal voltage-stabilizing circuit; 113, door stabilivolt two; 114, diac; 115, protective resistance two; 116, NPN controls triode; 117, starting diode two; 118, PNP controls triode; 119, commissure resistance; 120, feedback resistance; 121, pilot lamp two is monitored; 122, sound attention device; 123, the output of both-end fast tripping protection monitoring source of stable pressure.
Fig. 3 is integrated amplification early warning circuit figure.
In figure: 01, touch sheet extension line; 02, the commissure electric capacity between touch sheet and preposition integrated circuit; 03, the resistance of vibration is produced; 04, first electric capacity of vibration is produced; 05, second electric capacity of vibration is produced; 06, preposition integrated circuit; 07, preposition output; 08, anti-interference capacitor; 09, sensitivity adjustment resistance; 11, isolation resistance; 12, integrated amplifier; 13, triode is controlled; 16, relay is driven; 17, relay normally open contact is driven; 18, drive the normal pin contact of relay, namely integrated amplification early warning circuit exports; 123, the output of both-end fast tripping protection monitoring source of stable pressure.
Fig. 4 is the scheme of installation of touch sheet and lockhole switch.
In figure: 1, touch sheet; 01, the line of touch sheet; 2, the screw of fixing touch sheet; 3, the printed panel of lockhole switch is welded; 4, the screw of fixing welding lockhole switch printed panel; 5, lockhole switch; 6, a contact extension line of lockhole switch; 7, another contact extension line of lockhole switch; 8, anti-theft safety door; 9, lockhole.
Fig. 5 is onsite alarming device circuit diagram.
In figure: 7, another contact extension line of lockhole switch; 18, drive the normal pin contact of relay, namely integrated amplification early warning circuit exports; 20, the isolating diode between integrated amplification early warning circuit and onsite alarming device; 50, the isolating diode between another contact extension line and onsite alarming device of lockhole switch; 51, voice sheet; 53, prestage amplifying triode; 55, prestage amplifying triode collector resistance; 57, commissure resistance; 58, commissure electric capacity; 60, power tube; 61, lotus root closes resistance; 63, coupling capacitor; 67, loudspeaker.
Embodiment
Fig. 1 to 5 describes specific embodiment of the invention example.
One, according to Fig. 2 embodiment, touch sheet and lockhole switch are installed.
1, the touch sheet larger than lockhole is become by one piece of metal material processing.
2, spile at the periphery of touch sheet, the place punching of installing cover plate at shop front lockhole is corresponding with it, and the mounting hole tapping of the shop front, in order to increase the difficulty of taking off touch sheet, can beat around several aperture, particularly lockhole more.
3, touch sheet is fixed in the shop front.When should note fixing between touch sheet and door when fixing, pad last layer insulant is as plastic washer.
4, connect touch sheet with one end of a wire, the other end is connected in the integrated amplification early warning circuit be positioned in door.
5, be welded on a bar printing plate by lockhole switch, the printed panel having welded switch is fixed on door.
6, a contact extension line of lockhole switch connects with integrated amplification early warning circuit power supply, is all connected in the output of both-end fast tripping protection monitoring source of stable pressure, makes the power supply of onsite alarming device after another contact extension line of lockhole switch connects an isolating diode.
7, touch sheet oppresses lockhole shift knob after fixing.
Two, the integrated amplification early warning circuit of installation and debugging.
1, selectors: preposition integrated circuit selects 555, controlling triode is large power triode.
2, weld: weld according to the mode of Fig. 3.
3, debug.
Test and adjustment prestage: the OUT pin surveying integrated circuit with the voltage gear of multimeter, the integrated circuit when namely the coverage sheet that hand does not contact on lockhole is touch sheet
pin exports as low level, namely less than 0.5 volt, and when hand contacts the touch sheet on lockhole integrated circuit
pin should export a high position, the nonconforming resistor-capacitor unit value that should adjust integrated circuit.
Test and adjustment amplifier stage: with the collector of voltage table observing and controlling triode, when preposition output is low level, the current collection controlling triode is very high-order, when preposition output is high-order, control the current collection very low level of triode, as integrated amplifier insufficient sensitivity, sensitive adjusting resistance should be adjusted.
Three, as shown in Figure 2, both-end fast tripping protection monitoring source of stable pressure is implemented.
1, option: quick-break controllable silicon selects one-way SCR, monitoring pilot lamp one and the luminotron of monitoring instruction two and selecting the color that sends light different.The power of two door stabilivolts is 1W.Start triode withstand voltage >=100V.The control triode of NPN is selected 8050, PNP to control triode and is selected 8550, and other resistor-capacitor unit is without particular/special requirement.
2, front end overvoltage protection parameter is adjusted: (1), interchange of breaking; export with the oscillographic both-end fast tripping protection monitoring source of stable pressure that is connected on; rectification output end is clicked by the DC voltage of 100 volts; oscilloscope display exports and substantially reduces to zero by normal voltage; now; monitoring pilot lamp one (104 in Fig. 2) is luminous; sound attention device (122 in Fig. 2) sends the sound; the collector surveying PNP control triode (118 in Fig. 2) in rear end overvoltage monitoring startup level with multimeter should be high-order; if not high, be then that clamp diode two (109 in Fig. 2) welding is anti-.
If the output of both-end fast tripping protection monitoring source of stable pressure is non-vanishing, then should debug the voltage stabilizing value of door stabilivolt one (103 in Fig. 2), or the resistance of adjustment protective resistance one (105 in Fig. 2).
(2), the DC voltage of 100 volts of breaking, oscilloscope display output end voltage is normal, if the resistance of abnormal just adjustment quick-break silicon controlled trigger resistance (111 in Fig. 2).
3, to three-terminal voltage-stabilizing circuit output end overvoltage monitoring and the detection protected and debugging.
(1) starting value of door voltage stabilizing two, is adjusted.
The output terminal of three-terminal voltage-stabilizing circuit is measured with voltage table.Determine the overvoltage threshold voltage of output terminal, as higher than normal voltage stabilizing value 10% volt, protection act.
Namely A, the impaired situation of simulation three-terminal voltage-stabilizing circuit are that after simulation damages, output voltage increases,
Method disconnects three-terminal voltage-stabilizing circuit ground end, and the lower inclined resistance that a resistance of connecting between this end with ground is namely newly-increased, be connected the namely newly-increased upper inclined resistance of another resistance at three-terminal voltage-stabilizing circuit ground end with output terminal simultaneously, at this moment the voltage of output terminal can improve, adjust the value of two resistance, as the resistance of newly-increased lower inclined resistance is increased, (maybe the resistance of upper inclined resistance being reduced), the voltage allowing the output terminal of three-terminal voltage-stabilizing circuit increase reaches desirable value, as 10%.At this moment voltage table is designated as high as 10% voltage.
B, when output voltage overvoltage, exceed the voltage stabilizing value of door stabilivolt two (113 in Fig. 2), it is saturated immediately that NPN controls triode, it is open-minded immediately that PNP controls triode, the current collection surveying PNP control triode with multimeter is very high-order, now monitor pilot lamp two (121 in Fig. 2) long bright, sound attention device (122 in Fig. 2) is long to be rung.
(2), the normal phenomenon of monitoring and protection.
After PNP control triode (118 in Fig. 2) opens, the sound, and also monitoring pilot lamp two (121 in Fig. 2) is bright.
The lower inclined resistance that short circuit is newly-increased, now sound still rings, and monitoring pilot lamp two is bright.
If survey output voltage with multimeter have overvoltage, and monitor pilot lamp two and do not work, whether the collector then detecting PNP control triode is high-order, if high-order, it is then the base stage sealing-off that monitoring pilot lamp two damaged or monitored that instruction two and NPN control triode, if the collector that PNP controls triode is not high-order, then may be that the voltage stabilizing value of door stabilivolt two is too high.
Four, Detection and adjustment onsite alarming device.
Fig. 5 welding pressed by onsite alarming device.
When hand contact touch sheet, each onsite alarming unit should produce corresponding functional effect, first onsite alarming unit is onsite alarming, then should send early warning sound, second unit automatically opens camera function, then video camera should start, when hand leaves touch sheet, corresponding function should stop, otherwise should adjust the adjustment part in corresponding unit.
Claims (5)
1. the precaution device with self-inspection, is characterized in that: monitor source of stable pressure, touch sheet by both-end fast tripping protection, integrated amplification early warning circuit, lockhole switch, onsite alarming device forms jointly;
Wherein: both-end fast tripping protection monitoring source of stable pressure is made up of jointly lightning arrester, front end overvoltage monitoring startup level, fast tripping protection level, three-terminal voltage-stabilizing circuit, rear end overvoltage monitoring startup level, sound attention device;
Lightning arrester is connected between rectification output and ground wire;
Front end overvoltage monitoring starts level and is made up of door stabilivolt one, monitoring pilot lamp one, protective resistance one, starting triode, starting diode one, two clamp diodes;
Monitoring pilot lamp one is connected with protective resistance one, form front end series arm, one termination of door stabilivolt one connects rectification and exports, another termination front end series arm is to the base stage starting triode, start the grounded emitter line of triode, the positive pole of starting diode one connects quick-break silicon controlled in fast tripping protection level and controls pole, the negative pole of starting diode one connects the collector starting triode, the negative pole of two clamp diodes is all connected on the collector of starting triode, the positive pole of clamp diode one connects the serial connection point that rear end overvoltage monitoring starts the other end tandem connection monitoring pilot lamp two of feedback resistance in level, the positive pole of clamp diode two connects the collector that rear end overvoltage monitoring starts NPN control triode in level,
Fast tripping protection level is made up of quick-break controllable silicon, trigger resistance;
Trigger resistance is connected on quick-break silicon controlled anode and controls between pole, and quick-break silicon controlled anode connects rectification and exports, and quick-break silicon controlled negative electrode connects the input of three-terminal voltage-stabilizing circuit;
Rear end overvoltage monitoring starts level and is made up of door stabilivolt two, diac, protective resistance two, NPN control triode, starting diode two, PNP control triode, feedback resistance, monitoring pilot lamp two, commissure resistance;
Door stabilivolt two is connected with diac, protective resistance two, the output and the NPN that are connected on three-terminal voltage-stabilizing circuit control between the base stage of triode, commissure resistance is connected on NPN and controls the collector of triode and PNP controls between the base stage of triode, one termination PNP of feedback resistance controls the collector of triode, the other end tandem connection monitoring pilot lamp two of feedback resistance controls the base stage of triode to NPN, the positive pole of starting diode two connects quick-break silicon controlled and controls pole, and the negative pole of starting diode two connects the collector that NPN controls triode;
Between the collector that sound attention device is connected on PNP control triode and ground wire;
Namely the output of three-terminal voltage-stabilizing circuit be the output of both-end fast tripping protection monitoring source of stable pressure;
Lockhole switch is mounted in above lockhole, below touch sheet, touch sheet is fixed on the button of oppressing lockhole switch after on door, a contact wire of lockhole switch is drawn, connect the output of both-end fast tripping protection monitoring source of stable pressure, another contact power supply of wire extraction as onsite alarming device of lockhole switch;
To in succession one piece of touch sheet with a wires, contacting with the other end of this metal wire connects the low valve end of preposition integrated circuit in integrated amplification early warning circuit after a commissure electric capacity;
Integrated amplification early warning circuit is by preposition integrated circuit, integrated amplifier, control triode and drive relay jointly to form;
Touch sheet extension line connects the low valve end of preposition integrated circuit, the discharge end of preposition integrated circuit is connected with high threshold end, the direct clearing termination power of preposition integrated circuit, the control voltage termination of preposition integrated circuit produces second electric capacity of vibration to ground, the high threshold termination two-way of preposition integrated circuit, one tunnel practices midwifery the raw resistance vibrated to power supply, raw first electric capacity vibrated is practiced midwifery to ground in another road, preposition output connects an anti-interference capacitor and sensitivity adjustment resistance over the ground, the preposition output of positive termination of integrated amplifier, an indirect isolation resistance of the end of oppisite phase of integrated amplifier and the output of integrated amplifier, the base stage controlling triode connects the output of integrated amplifier, control the grounded emitter of triode, drive two line buds of relay, a line bud connects the collector controlling triode, another line bud connects power supply, the normally opened contact of relay is driven to connect power supply, the normal pin contact of driving relay is the output of integrated amplification early warning circuit,
Onsite alarming device is: the output of integrated amplification early warning circuit and the normal pin extension line of lockhole switch connect the power supply as onsite alarming device after an isolating diode respectively, the base stage of prestage amplifying triode is connected with the output of voice sheet, the collector of this triode connects two-way, one tunnel connects a collector resistance to live wire, second tunnel is connected to commissure resistance and the base stage being connected power tube after the parallel circuit of commissure electric capacity, the collector series connection lotus root of power tube closes resistance with after the part in parallel of coupling capacitor, is connected to loudspeaker.
2. a kind of precaution device with self-inspection according to claim 1, is characterized in that: in integrated amplification early warning circuit, preposition integrated circuit is NE555.
3. a kind of precaution device with self-inspection according to claim 1, is characterized in that: the loudspeaker internal resistance in onsite alarming device is 8 Ω.
4. a kind of precaution device with self-inspection according to claim 1, is characterized in that: in both-end fast tripping protection monitoring source of stable pressure, the power of two door stabilivolts is 1W.
5. a kind of precaution device with self-inspection according to claim 1, is characterized in that: both-end fast tripping protection monitoring source of stable pressure in start triode withstand voltage >=100V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520726273.4U CN204926381U (en) | 2015-09-20 | 2015-09-20 | Take precaution device of self -checking |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520726273.4U CN204926381U (en) | 2015-09-20 | 2015-09-20 | Take precaution device of self -checking |
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| CN204926381U true CN204926381U (en) | 2015-12-30 |
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| CN201520726273.4U Expired - Fee Related CN204926381U (en) | 2015-09-20 | 2015-09-20 | Take precaution device of self -checking |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106023551A (en) * | 2016-07-27 | 2016-10-12 | 沈阳奥森自动化装备有限公司 | Simulating flame light source independent clock alarm self-checking circuit |
-
2015
- 2015-09-20 CN CN201520726273.4U patent/CN204926381U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106023551A (en) * | 2016-07-27 | 2016-10-12 | 沈阳奥森自动化装备有限公司 | Simulating flame light source independent clock alarm self-checking circuit |
| CN106023551B (en) * | 2016-07-27 | 2017-07-07 | 沈阳奥森自动化装备有限公司 | One kind simulation flame light source independent clock alarm self-checking circuit |
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