CN203325122U - Efficient lightning protection type camera shooting monitor - Google Patents
Efficient lightning protection type camera shooting monitor Download PDFInfo
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- CN203325122U CN203325122U CN2013201644149U CN201320164414U CN203325122U CN 203325122 U CN203325122 U CN 203325122U CN 2013201644149 U CN2013201644149 U CN 2013201644149U CN 201320164414 U CN201320164414 U CN 201320164414U CN 203325122 U CN203325122 U CN 203325122U
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Abstract
The utility model relates to an efficient lightning protection type camera shooting monitor, and belongs to the technical field of alarms. The efficient lightning protection type camera shooting monitor is composed of an anti-theft door, a lockhole covering sheet, a camera shooting and recording automatic control unit, an alarm starter, an alarm sound system and a hybrid power supply, wherein the lockhole covering sheet is prepared into the shape of a bottle cap, a flange plate, which is installed above a lockhole, is in abutting joint with the lockhole covering sheet, and a lockhole switch is installed in the flange plate. When a crime committing behavior occurs, a signal is transmitted to the camera shooting and recording automatic control unit as soon as the lockhole covering sheet is touched, camera shooting and recording are started, the alarm starter is two different types of switches installed at two special positions of the door, and contacts of the switches are led out and connected to the camera shooting and recording automatic control unit and the alarm sound system. Camera shooting and recording can both be carried out and an alarm is given out no matter the crime is committed by using a lock cracking mode or in a brutal way, the efficient lightning protection power supply is matched with the camera shooting monitor, thereby enabling the camera shooting monitor provided by the utility model to become a protector integrating multiple advantages, thereby enriching products of anti-theft safety doors.
Description
Technical field
Belong to the alarm technical field.
Background technology
Alarm is important antitheft equipment, can alert always when thing is arranged, but at home nobody the time, it is not all right that light has chimes of doom, the detection merit is had no to help, because any record not at that time has no way of having looked into.
This shooting record has just been become to very important thing, and for general family, being all the generation that adopts, event just starts to produce the shooting record, although such function is very important, but the situation before can't the understanding case also becomes a kind of very large deficiency.Because have after the front record of concluding a case one to be to perform in advance security measures, gaining the initiative property, generation event after even overcoming.The 2nd, the front record of concluding a case is arranged, to the understanding of event more comprehensively.So there is the front shooting of case writing function important in inhibiting.
The burglar alarm product, if run into power failure, or be afraid of to be struck by lightning and cut off the power supply at thundery sky, can not normally use, and consequence is very serious.At present outstanding integrated regulated power supply is very abundant, and as 78 series, these stabilized voltage supplys not only voltage regulation result are good but also have overcurrent protection etc., but its shortcoming is output voltage, are not very high, usually only have 30 volts, so overvoltage capabilities is poor.Can't be directly used in the important electrical equipment of a class such as security device, because this electric appliances has heavy function and mission, and power supply is perishable Focusing on components, so wish that it is very necessary stopping each dead angle that may exist.
Summary of the invention
Main task of the present invention and purpose are to use a kind ofly greatly to improve lightning protection capability, relax the power supply to civil power fluctuation ability, take full advantage of existing technological achievement, a kind of new technical measures are proposed, the record of emphasis can be arranged the environment of family, Automatic sieve is selected unwanted part, it is also the record of shooting with video-corder that the front situation of case is arranged, no matter crack lockhole or use barbarous mode, the record of can making a video recording, and report to the police, be a kind of security personnel's product category that integrates multiple advantage, thereby be conducive to social public security, the safety in family is arranged.
The technical solution used in the present invention is:
1, high efficiency lightning protection type camera monitoring device is by antitheft door, and lockhole is covered sheet, and automatic control unit is recorded in shooting, alarming starter, and alarm sound system hybrid power supply, several parts form jointly.
Wherein: it is to be made by a sheet metal that lockhole is covered sheet, sheet metal is made the bottle cap shape, what with the bottle cap sheet, dock is a kind of ring flange, the ring flange chassis is fixed on door, lockhole is covered fully, the mode that the bottle cap sheet is connected with ring flange adopts engage thread to connect, and will warn in advance signal with wire and draw, and connects the front shooting of concluding a case and records startup or the door in automatic control unit power amplifier level.
Alarming starter is to consist of travel switch and lockhole switch:
Travel switch is to be contained in door and doorframe junction, and after door closes and closes, the travel switch button is lived in the doorframe compressing, by the travel switch contact with draw before the connection case make a video recording record startup in automatic control unit power amplifier level or and the alarm sound system.
The lockhole switch is mounted in the hollow position of ring flange, and lockhole is covered under sheet, with screw, lockhole is covered to sheet and docks with ring flange, and lockhole is covered the button that the lockhole switch is lived in the sheet compressing; The contact of lockhole switch is drawn and is connected the front shooting of concluding a case and record startup or door and the alarm sound system in automatic control unit power amplifier level with wire.
Connect lockhole coverage sheet with an end of a wire, before other end connection case, the automatic control unit input end is recorded in shooting.
Shooting record automatic control unit by case before shooting record automatic control unit, the rest-set flip-flop that band shows, time controller, shooting manually boots switch, video camera recorder forms jointly.
Making a video recording before case and recording automatic control unit is by prestage, interstage amplifier section, and the power amplifier level, several parts of electronic switch form jointly.
Prestage mainly is comprised of a triode, the input end by the base stage of a triode as this unit, and collector connects power supply, and emitter has connected the input end of interstage amplifier section.
Interstage amplifier section is comprised of several not gates and relevant peripheral element:
With the input end of first not gate in interstage amplifier section as input end at the corresponding levels, and connected the input end of second not gate with the output terminal of first not gate in this grade, as method is connected to the input end of last not gate of interstage amplifier section, last non-gate output terminal is the output terminal of interstage amplifier section, and the output terminal of each not gate and input end are connected with a resistance; The output terminal of this grade has connected the input end of power amplifier level.
The power amplifier level is by two not gates and one or form:
The connected input of second not gate in this grade of the output of first not gate in the power amplifier level, the output of second not gate has connected or an input of door, and the input of first not gate connects the output of interstage amplifier section; Or the output of door is the output of power amplifier level.
In the power amplifier level or three inputs of door connected respectively the output terminal of time controller, the output terminal of warning starting switch, shooting manually boots the output terminal of switch.
The output power amplifier level or door has connected three tunnels, and the first via has connected the input of electronic switch, and the second tunnel has connected the input of the rest-set flip-flop of band demonstration; Third Road has connected the time controller control end.
The output of electronic switch has connected video camera recorder.
Hybrid power supply is by rectification unit, overvoltage voltage-limiting protection first module, overvoltage fast tripping protection second unit, and voltage regulation unit forms jointly.
Rectification unit is the positive pole that the secondary two ends of transformer has connected respectively two diodes, and the negative pole of two diodes connects together becomes the positive source output after rectification, and the center tap ground connection of pressure-changing secondary lateral coil becomes the negative pole output of power supply.
Overvoltage voltage-limiting protection first module consists of with pressure limiting stabilivolt and upper inclined to one side resistance jointly triode: be connected two-way with the output of rectification unit, a road is the collector of this grade of triode; One tunnel is an end of a resistance, and the other end of this resistance has connected the base stage of this grade of triode; The emitter of this grade of triode has connected two-way, and a road is the input end of three end integrated circuit, and a road is the anode that has connected the triggering stabilivolt in overvoltage fast tripping protection second unit.
Overvoltage fast tripping protection second unit is to be comprised of a controllable silicon and peripheral element: by the base stage of the triode in silicon controlled anodic bonding one-level overvoltage voltage-limiting protection first module; plus earth; connect a negative pole that triggers stabilivolt with the control utmost point, the positive pole that triggers stabilivolt has connected the emitter of the triode in one-level overvoltage voltage-limiting protection first module.
Voltage regulation unit is to be comprised of 78 serial integrated circuit and peripheral element: the emitter that has connected triode in one-level overvoltage voltage-limiting protection by the input stage of 78 serial integrated circuit; 78 serial integrated circuit earth terminals have connected ground connection after a resistance; output terminal has connected an end of a resistance, and the other end of visiting resistance is connected to 78 serial integrated circuit earth terminals.
The output terminal of 78 serial integrated circuit is last output terminals of the present invention.
2, the lockhole switch be one without the self-locking type pushbutton switch.
3, before case shooting to record prestage triode used in automatic control unit be high power NPN transistor, anti-phase voltage breakdown is 100V.
4, the not gate employing integrated circuit that before case, shooting is recorded in automatic control unit is hex inverter CD4069.
5, in hybrid power supply, triggering stabilivolt and pressure limiting stabilivolt power are all 1W.
6, in hybrid power supply, the controllable silicon in overvoltage fast tripping protection second unit is one-way SCR.
7, in hybrid power supply, the triode in overvoltage voltage-limiting protection first module is large power triode, oppositely hits voltage 100V.
8, in hybrid power supply, rectification unit diode used is heavy-duty diode
For having a clear understanding of the meaning of the technical program, at first will make the following instructions:
Before this, the inventor is studied antitheft door, and proposed normal door and opened the door without mechanical key, but the measure of the mode of opening the door with electronics telecontrol engineering or phone.Be when normal door, by remote control, to the propulsion system that are installed in door, send instruction, promote the lockset action, realize opening 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, so antitheft door can be made lockhole semiclosed processing, its meaning is, during normal the use, lockhole is covered, and only during out of order special circumstances, just lockhole is covered to sheet and is opened.
To above-mentioned measure, specific explanations is as follows:
One, it is reported, to the security personnel of family, the most important thing is the security personnel of opposite house, and the security personnel of opposite house, emphasis is again the security personnel to lockhole, because the great majority crime is all by cracking of lockhole entered house.For this reason, the inventor has covered cover plate above lockhole, Men Bulu lockhole at ordinary times, on the contrary with the people that hand is taken off lid, be mostly suspectable people.The record so should make a video recording, and be the important front shooting of case record.
Two, based on above-mentioned situation, record three kinds of functions before the case of measure of the present invention, one of function be that shooting starts immediately as long as hand touches lockhole top cover plate, if stop continuing, automatically stop shooting.Two be when automatic camera records, to have recorded the time occurred at that time simultaneously, three be occurrence record after, the Presentation Function of record before case will be arranged, announcements in the people overwriting situation once occurred, to watch.
Three, can preset with the rule of time period and initiatively make a video recording, be artificially will be set on one's own initiative a certain period time above, and now video camera records ambient conditions by automatic camera, rather than will contact the lockhole cover plate.This situation is mainly used for the active monitoring of people to environment in family.It should be noted that it is whole shootings of 24 hours all day that this period comprises.
Four, the shooting of the overall process after crime is produced.
Five, produce the principle explanation of above function: (explain with Fig. 1.）
Produce the principle of contact lockhole cap automatic camera record: when the hand contact is locked into lockhole, cover sheet, after being hole top cover plate (in Fig. 1 101), then the touch signal that has taken out human body enters the polystage amplifier amplification that not gate forms (in Fig. 1 105, to 108 etc.) by emitter follower (in Fig. 1 102) input, finally enter or door (in Fig. 1 111) input, finally enter electronic switch (in Fig. 1 112), finally open video camera work (in Fig. 1 113).If stop continuing, no touch signal, so electronic switch is not open-minded, the camera system non-transformer, do not work.
Produce the principle of period shooting record: 116 in Fig. 1 is a kind of instruments (abbreviation time-controlling apparatus) with time controller and demonstration, as long as preset the time, it will output signal, through or door (in Fig. 1 111) after, open electronic switch (in Fig. 1 112), then allow video camera work.
Produce the principle that overall process is recorded in shooting: although after forcing open the door, hand has left lockhole top cover plate, but above lockhole and the alarm switch contact be pressed under cover plate is not oppressed by cover plate, variation has occurred, and in this Fig. 1, switch 119 is closed, so opened the video camera job record.
After the shooting record, displaying principle is arranged before the generation case: in Fig. 1,118 is a kind of rest-set flip-flops with demonstration, thereby there is Memorability, when each or door has output to open electronic switch 112, all can trigger the rest-set flip-flop of memory, once so, after rest-set flip-flop is triggered, additional LED can luminescence display.
The principle of shooting record writing time before the generation case: when each or door has output to open electronic switch 112, have signal to trigger time controller, so can automatically record the moment of generation.
Six, produce the warning function principle: when door and doorframe are subjected to displacement, the travel switch contact of pacifying every and doorframe junction changes, and has produced the warning enabling signal; When loosening or open the cover plate of lockhole top fully after, the lockhole shift knob of being satisfied with cover plate below, lockhole top does not suffer oppression and contact changes, also produce the warning enabling signal, the contact of biswitch starts video camera work, has opened warning system work simultaneously.
Seven, the such installation benefit of warning starting switch be sensitive, reliable, simultaneously can generation not make us terrified wrong report.Reason one is alarm switch when event does not occur, and contact can not be subjected to displacement.The 2nd, do not affect the normal habits and customs of people, thereby do not affect the normal operation of the each starting of security system.
Eight, power supply is an emphasis of the present invention, and the spy makes the following instructions circuit:
1, the reason that has good anti-lightning effect: when thunderbolt is arranged, being usually power supply perishable the time, is that take the to cut off the power supply mode in source is avoided as common household electrical appliances, because these class household electrical appliances are made interim power down process, can not produce serious consequence.But, as the specialities of security personnel's class, as resolute power down source will become security personnel's blank, so improve lightning protection effect, be first emphasis of the present invention.
The first, overvoltage voltage-limiting protection first module and overvoltage fast tripping protection second unit, formed " fast tripping protection function ", and excellent performance has very strong lightning protection overvoltage capabilities.
(1) principle, formed is: if thunderbolt and while causing output terminal too high and after surpassing the door of diac 6; 6 conductings of silicon controlled trigger element stabilivolt; thereby triggering controllable silicon 4 conductings; immediately to the base stage short circuit of the triode 5 in overvoltage voltage-limiting protection first module; make this manage complete no-output; three end integrated circuit input no-voltages, form lightning protection overvoltage fast tripping protection second unit.
(2), why be called " fast tripping protection function ", be because too high once output terminal, controlled silicon conducting has very strong positive feedback, can will adjust the base stage short circuit of pipe rapidly, protection whole process is both very rapid, and protection is thoroughly.Realize sealing up a door fully.
(3), the automatic restorability of protection controllable silicon is good.Reason is after producing protection, triode 5 no-outputs in first module, and triggerless voltage, the controllable silicon anode has resistance in addition; to automatically lose the self-sustaining electric current, revert to voluntarily open-circuit condition, if again be struck by lightning; again start, form protection, until output voltage is normal value.
(4), the controllable silicon that shields and peripheral trigger " fast tripping protection function " that part forms when work in " open-circuit condition ", as long as just work when thunderbolt or overvoltage, thus be not easy to damage, constantly all in a kind of guard mode.
Its reason is power output end while being normal condition, and controllable silicon, in off state, does not have " electrical wear ", can not damage.Its external trigger is enclosed part stabilivolt voltage stabilizing value higher than output end voltage, so also in open-circuit condition, there is no " electrical wear ", also can not damage, at any time all can be in a kind of " armed state ".
The second, overvoltage voltage-limiting protection first module has formed the secondary voltage-limiting protection function of anti-lightning protection to thunderbolt, the further perfect protection to integrated circuit.
Its reason is, the base stage of triode 5 has voltage stabilizing diode over the ground, so this pipe output is by clamper, and pressure limiting has been carried out in shoving that this diode pair thunderbolt produces, and is the further Supplementary and perfect to " fast tripping protection ".
2, the reason one that higher place and period can not damaged circuit at civil power is that civil power can not gush pressure higher than thunderbolt when high, the 2nd, and triode 5 is that high inverse-voltage tube has very strong back-pressure value.
The main cause of place that 3, can be lower at civil power and period work: because preposition triode is high inverse-voltage tube, so can design the bridge-type output voltage higherly when design, when civil power is low, at this moment bridge-type voltage can not be very low, just can do certain compensation.
4, can adjust the reason of different output voltage stabilizing values.Owing to having increased peripheral element adjustable resistance 9 and 10 in measure, thereby can be on reference voltage, again realize that output voltage adjusts flexibly, to realize the normal voltage required to the accumulator floating charge, as 6.6 volts; 12.8 volt, etc.
After the invention process, the anti-theft security goalkeeper presents a kind of brand-new looks, and following outstanding advantage is arranged:
1, after the invention process, anti-theft safety door and alarm have been realized the combination of science, three kinds of functions integrate, one of be to there is the function that the people is kept outside the door, two are the functions with automatic camera record, three are the functions of reporting to the police, three kinds of functions are all very important, promote all sidedly security personnel's performance of anti-theft safety door, enriched the kind of antitheft door.
2, shooting record performance excellence.The one, before case, record is given prominence to the key points.The 2nd, after being arranged, record can automatically show the owner of announcement, can " not leak visit ".The 3rd, cases has occurred to do can record overall process.The 4th, shooting records various ways.The 5th, time of generation is arranged when recording.These 5 meanings have return visit and save time, economize energy, save device resource etc. serial advantage, have really realized that workable characteristics are.(in the situation of work strain, family can not carry out " return visit " to shooting by impunity, more impossible in return visit, watch a lot of useless impunities general records).Thereby, for understanding the family public security present situation, very important positive role is arranged.
3, warning function is reliable and sensitive, does not importantly produce wrong report.
4, reliable, easy to use.Reason one be video camera recorder and warning system at ordinary times most cases in the no power state, do not produce electrical wear, at any time all in a kind of " highly waiting " state, the 2nd, user between the whole operating period, closing the door when opening without any need for other additional move, do not affect normal habits and customs, can not produce malfunctioning situation.
5, the amplifying circuit that automatic control unit is recorded in the front shooting of case is outstanding, has guaranteed the reliable and sensitive of core circuit.Reason one is that emitter follower can realize that the coupling between lockhole cover plate and amplifier takes out signal reliably after as impact damper well.The 2nd, the sensitivity at different levels of amplifier is adjustable flexibly, and very high amplification coefficient is arranged.The 3rd, functional level has good shaping operation, realized the Digital output conversion of (0) with (1) of standard, thereby resolving power is very strong; Export energy large simultaneously, there is to very strong triggering ability in subordinate.
6, produce easily, the one, the simple and reliable debugging of circuit is easy, and the 2nd, do not need the instrument and meter of price top grade.
7, the benefit of hybrid power supply have following some: (1), anti-thunder and overvoltage protection effect are fine.So at thunderstorm season, needn't make power down process, institute's adapted equipment can be because thundery sky quits work, if be used on security personnel's equipment, guaranteed that " security personnel " do not produce blank, and be difficult to reach this effect with three traditional end integrated circuit with combining of triode.
(2), this line thunder protection effect is more much better than anti-thunder tube commonly used.Its reason one is that lightning protection function is and rear class quick-break rather than shorted to earth, to prime without negative role.The 2nd, the model of the anti-thunder tube that " suctioning through voltage " is low is difficult for having bought, and the model scope of diac of the present invention 6 is extremely wide, is easy to required " suctioning through " magnitude of voltage of supporting one-tenth, so be easy to supporting one-tenth, suctions through 30 volts of following protections of voltage.The 3rd, the present invention has " quick-break " and pressure limiting duplicate protection, thereby effective.
(3), adapt to widely, than traditional stabilized voltage supply, wider adaptive faculty is arranged, high at the voltage that meets accident, can not damage.And at voltage, lower place and the period also can work.
(4), there is the voltage stabilizing value of decimal in available adjustment output generation, be convenient to the floating charge of accumulator science.There is overcurrent protection simultaneously.Be fruitful or other electronic products have excellent performance after supporting.
(5), the voltage regulation performance excellence because it has all advantages of three end integrated regulated power supplies.
(6), easily produce.Reason one is to have adopted complex function, the simple in circuits compactness; The 2nd, because the debug point in circuit is few.The 3rd, debug point very easily quantizes, and the debugging scope is loose.
(7), cheap, cheap more a lot of than a lot of satisfactory a lot of stabilized voltage supplys.
The accompanying drawing explanation
Fig. 1 is that before case, automatic control circuit figure is recorded in shooting.
In figure: 101, sheet is covered in the lockhole top; 102, before case, the input prestage emitter follower in automatic control unit is recorded in shooting; 103, chopped-off head sensitivity adjustment resistance in the front interstage amplifier section that records automatic control unit of making a video recording of case; 105, the chopped-off head not gate in the front interstage amplifier section that records automatic control unit of making a video recording of case; 107, the final stage sensitivity adjustment resistance in the front interstage amplifier section that records automatic control unit of making a video recording of case; 108, the final stage not gate in the front interstage amplifier section that records automatic control unit of making a video recording of case; 109, make a video recording before case and record first not gate of power amplifier level in automatic control unit; 110, make a video recording before case and record second not gate of power amplifier level in automatic control unit; 111, startup or the door in the front power amplifier level that records automatic control unit power amplifier level of making a video recording of case; 112, electronic switch; 113, video camera recorder; 115,, there is the rest-set flip-flop of demonstration in generation; 116, time controller; 119, lockhole switch; 120, hand switch.
Fig. 2 is shooting record and the mutual relationship figure partly that reports to the police.
In figure: 55, travel switch; 101, sheet is covered in the lockhole top; 119, lockhole switch; 120, hand switch; 198, hybrid power supply; 201, shooting tracer signal amplifying circuit before case; 111, before case, startup or the door in automatic control unit recorded in shooting; 112, electronic switch; 113, video camera recorder; 202, alarm sound system.
Fig. 3 is the scheme of installation of travel switch in alarming starter.
In figure: 50, anti-theft safe doorframe; 51, anti-theft safety door; 52, hinge; 53, the box of travel switch is installed; 55, travel switch; 128, travel switch contact extension line.
Fig. 4 is that lockhole is covered sheet and lockhole switch schematic diagram.
In figure: 51, anti-theft safety door; 70, ring flange; 71, lockhole; 101, the coverage sheet of bottle cap shape has been made in the lockhole top; 77, the printed panel of welding switch; 78, lockhole shift knob; 119, lockhole switch; 127, lockhole switch extension line.
Fig. 5 is the hybrid power supply circuit diagram.
In figure: 1, step down side input; 3, inclined to one side resistance on the triode in overvoltage voltage-limiting protection first module; 4, the controllable silicon in the fast tripping protection unit; 5, the triode in overvoltage voltage-limiting protection first module; 6, the triggering stabilivolt that there is door in " quick-break " protection; 7, voltage-limiting protection voltage stabilizing diode; 8, three end integrated stable voltage circuits; 9, inclined to one side resistance in the output voltage accurate adjustment; 10, inclined to one side resistance under the output voltage accurate adjustment; 11, stabilized voltage supply output.
Embodiment
Fig. 1 and Fig. 5 have described the specific embodiment of the invention example.
One, the lockhole top is installed and covers sheet and alarm switch.
1, adopt sheet metal to extrude " Bottle cap structure part " and " ring flange ", wherein; " Bottle cap structure part " area is greater than lockhole to be become lockhole and covers sheet, and " Bottle cap structure part " attack the negative and positive screw thread mutually with " ring flange ", makes " Bottle cap structure part " can be with the method screw-in " bottleneck structure part " of rotation.
While 2, installing, " ring flange " tried to get to the heart of a matter and be affixed on door above, its hollow lockhole that exposes." ring flange " is screwed on door.
3, the lockhole switch is fixed on a bar printing plate and allows lockhole switch and printed panel become one, shooting tracer signal amplifying circuit and alarm sound system from switch contact is drawn line connection case.
The printed panel that 4, will be fixed with switch is placed on " ring flange " hollow position, by the button cover of travel switch to the bottle cap face.
5, rotation " Bottle cap structure part ", and allow this part capping compressing live shift knob change contact contact situation.
6, travel switch is fixed in a box, box is fixed in door again.After door and doorframe closure, doorframe compressing travel switch button.
7, the travel switch contact is drawn and is connected front shooting tracer signal amplifying circuit on record and alarm sound system with wire.
Two, record automatic control circuit according to shooting before Fig. 1 enforcement case, in the alarm sound system.
1, press Fig. 1 welding, in figure, active adopts integrated circuit 4069.Startup or door are selected the kind that three input and output are positive signal.
2, be soldered the rear inspection to function and debugging:
During A, hand contact lockhole top cover plate, video camera recorder work, hand leaves and automatically stops afterwards, otherwise should adjust sensitivity adjustment resistance in amplifier (in Fig. 1 103 or 107 etc.).
The time control section of B, the time-controlling apparatus of adjusting, the time period that simulation is adjusted, video camera recorder should be worked.Otherwise should check and start or door.
C, after video camera recorder work, in the rest-set flip-flop that band shows, pilot lamp is bright, and time controller has the corresponding time, otherwise should check relevant part.
Three, the enforcement of hybrid power supply:
1, selected triode, three end integrated stable voltage circuits, wherein triode is selected high back-pressure high power valve, and as 3DD15, the parameter value of voltage stabilizing diode 4 can not be greater than three ends input ceiling voltages.Voltage stabilizing diode 6 should be higher than the value of voltage stabilizing diode 4.
2, press the wiring diagram welding of Fig. 5.
3, adjust the power supply output valve.Adjust in the accurate adjustment of three end integrated circuit resistance and lower inclined to one side resistance partially, make it the accurate requirement of voltage conforms accumulator floating charge, as 6.6 volts, 12.8 volts etc.Its rule is that lower inclined to one side resistance 10 is larger, and output voltage is higher, otherwise lower.
4, detect and debug the overvoltage protection parameter.The transformer primary side that breaks, be connected on source of stable pressure output with oscillographic, by the DC voltage of 100 volts, clicks rectifier terminal, and oscilloscope display output reduces to zero substantially by normal voltage, and after the high pressure of 100 volts remove, voltage recovers normally.Otherwise should adjust the voltage stabilizing parameter value of the voltage stabilizing diode with door in overvoltage protection controllable silicon grid return.
Claims (8)
1. high efficiency lightning protection type camera monitoring device is characterized in that: by antitheft door, lockhole is covered sheet, and automatic control unit is recorded in shooting, alarming starter, and alarm sound system hybrid power supply, several parts form jointly;
Wherein: it is to be made by a sheet metal that lockhole is covered sheet, sheet metal is made the bottle cap shape, what with the bottle cap sheet, dock is a kind of ring flange, the ring flange chassis is fixed on door, lockhole is covered fully, the mode that the bottle cap sheet is connected with ring flange adopts engage thread to connect, and will warn in advance signal with wire and draw, and connects the front shooting of concluding a case and records startup or the door in automatic control unit power amplifier level;
Alarming starter is to consist of travel switch and lockhole switch:
Travel switch is to be contained in door and doorframe junction, and after door closes and closes, the travel switch button is lived in the doorframe compressing, by the travel switch contact with draw before the connection case make a video recording record startup in automatic control unit power amplifier level or and the alarm sound system;
The lockhole switch is mounted in the hollow position of ring flange, and lockhole is covered under sheet, with screw, lockhole is covered to sheet and docks with ring flange, and lockhole is covered the button that the lockhole switch is lived in the sheet compressing; The contact of lockhole switch is drawn and is connected the front shooting of concluding a case and record startup or door and the alarm sound system in automatic control unit power amplifier level with wire;
Connect lockhole coverage sheet with an end of a wire, before other end connection case, the automatic control unit input end is recorded in shooting;
Shooting record automatic control unit by case before shooting record automatic control unit, the rest-set flip-flop that band shows, time controller, shooting manually boots switch, video camera recorder forms jointly;
Making a video recording before case and recording automatic control unit is by prestage, interstage amplifier section, and the power amplifier level, several parts of electronic switch form jointly:
Prestage mainly is comprised of a triode, the input end by the base stage of a triode as this unit, and collector connects power supply, and emitter has connected the input end of interstage amplifier section;
Interstage amplifier section is comprised of several not gates and relevant peripheral element:
With the input end of first not gate in interstage amplifier section as input end at the corresponding levels, and connected the input end of second not gate with the output terminal of first not gate in this grade, as method is connected to the input end of last not gate of interstage amplifier section, last non-gate output terminal is the output terminal of interstage amplifier section, and the output terminal of each not gate and input end are connected with a resistance; The output terminal of this grade has connected the input end of power amplifier level;
The power amplifier level is by two not gates and one or form:
The connected input of second not gate in this grade of the output of first not gate in the power amplifier level, the output of second not gate has connected or an input of door, and the input of first not gate connects the output of interstage amplifier section; Or the output of door is the output of power amplifier level;
In the power amplifier level or three inputs of door connected respectively the output terminal of time controller, the output terminal of warning starting switch, shooting manually boots the output terminal of switch;
The output power amplifier level or door has connected three tunnels, and the first via has connected the input of electronic switch, and the second tunnel has connected the input of the rest-set flip-flop of band demonstration; Third Road has connected the time controller control end;
The output of electronic switch has connected video camera recorder;
Hybrid power supply is by rectification unit, overvoltage voltage-limiting protection first module, overvoltage fast tripping protection second unit, and voltage regulation unit forms jointly;
Rectification unit is the positive pole that the secondary two ends of transformer has connected respectively two diodes, and the negative pole of two diodes connects together becomes the positive source output after rectification, and the center tap ground connection of pressure-changing secondary lateral coil becomes the negative pole output of power supply;
Overvoltage voltage-limiting protection first module consists of with pressure limiting stabilivolt and upper inclined to one side resistance jointly triode: be connected two-way with the output of rectification unit, a road is the collector of this grade of triode; One tunnel is an end of a resistance, and the other end of this resistance has connected the base stage of this grade of triode; The emitter of this grade of triode has connected two-way, and a road is the input end of three end integrated circuit, and a road is the anode that has connected the triggering stabilivolt in overvoltage fast tripping protection second unit;
Overvoltage fast tripping protection second unit is to be comprised of a controllable silicon and peripheral element: by the base stage of the triode in silicon controlled anodic bonding one-level overvoltage voltage-limiting protection first module, plus earth, connect a negative pole that triggers stabilivolt with the control utmost point, the positive pole that triggers stabilivolt has connected the emitter of the triode in one-level overvoltage voltage-limiting protection first module;
Voltage regulation unit is to be comprised of 78 serial integrated circuit and peripheral element: the emitter that has connected triode in one-level overvoltage voltage-limiting protection first module by the input stage of 78 serial integrated circuit, 78 serial integrated circuit earth terminals have connected ground connection after a resistance, output terminal has connected an end of a resistance, and the other end of visiting resistance is connected to 78 serial integrated circuit earth terminals;
The output terminal of 78 serial integrated circuit is last output terminals of the present invention.
2. high efficiency lightning protection type camera monitoring device according to claim 1 is characterized in that: the lockhole switch be one without the self-locking type pushbutton switch.
3. high efficiency lightning protection type camera monitoring device according to claim 1 is characterized in that: before case, to record prestage triode used in automatic control unit be high power NPN transistor in shooting, and anti-phase voltage breakdown is 100V.
4. high efficiency lightning protection type camera monitoring device according to claim 1 is characterized in that: before case, shooting is recorded not gate in automatic control unit to adopt integrated circuit is hex inverter CD4069.
5. high efficiency lightning protection type camera monitoring device according to claim 1 is characterized in that: trigger stabilivolt in hybrid power supply and pressure limiting stabilivolt power is all 1W.
6. high efficiency lightning protection type camera monitoring device according to claim 1, it is characterized in that: the controllable silicon in hybrid power supply in overvoltage fast tripping protection second unit is one-way SCR.
7. high efficiency lightning protection type camera monitoring device according to claim 1, it is characterized in that: the triode in hybrid power supply in overvoltage voltage-limiting protection first module is large power triode, oppositely hits voltage 100V.
8. high efficiency lightning protection type camera monitoring device according to claim 1, it is characterized in that: in hybrid power supply, rectification unit diode used is heavy-duty diode.
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| CN2013201644149U CN203325122U (en) | 2013-04-05 | 2013-04-05 | Efficient lightning protection type camera shooting monitor |
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| CN2013201644149U CN203325122U (en) | 2013-04-05 | 2013-04-05 | Efficient lightning protection type camera shooting monitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989757A (en) * | 2019-12-16 | 2020-04-10 | 余兰兰 | Novel voltage stabilizing device for electronic monitoring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989757A (en) * | 2019-12-16 | 2020-04-10 | 余兰兰 | Novel voltage stabilizing device for electronic monitoring |
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