CN2779766Y - Visualized doorbell capable of sensing visitors - Google Patents
Visualized doorbell capable of sensing visitors Download PDFInfo
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- CN2779766Y CN2779766Y CN 200520017171 CN200520017171U CN2779766Y CN 2779766 Y CN2779766 Y CN 2779766Y CN 200520017171 CN200520017171 CN 200520017171 CN 200520017171 U CN200520017171 U CN 200520017171U CN 2779766 Y CN2779766 Y CN 2779766Y
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Abstract
A visualized talk-back doorbell which is capable of sensing visitors is composed of an outdoor machine and an indoor machine, wherein the outdoor machine is composed of an infrared transmitting circuit, an infrared receiving circuit, an environment brightness sampling circuit, a gate state judging circuit, an unlocking controlling circuit, a lighting circuit, an SCM, an outdoor speaking and imaging controlling circuit, a bell signal circuit, a manual control circuit, a voice controlling circuit, a camera and an outdoor intercom. The indoor machine is formed by connecting a display controlling circuit, a display, an indoor intercom and power supply. The SCM IC3 is used for controlling the infrared detecting circuit, and the identity of the visitor can be identified automatically. If the right visitor is identified, the host is informed, the power of the outdoor intercom and the camera is switched on, the display is turned on, the lighting switch is controlled according to the lightness of the environment, etc. The opening or the closing state of the gate is monitored at all hours, and the utility model is convenient in installation and maintenance.
Description
Affiliated technical field
The utility model relates to a kind of energy perception visitor's video intercom doorbell, belongs to household appliance technical field.
Background technology
The article of " black and white wall hanging video doorbell " stepped on one piece and is entitled as by " electronic production " 2004 the 12nd periodicals, introduces and accompanying drawing from literary composition, and it has following function: calling, visual, intercommunication, unblank, report to the police, functions such as illumination, indoor monitoring.With regard to control section, be provided with call button AN, indoor set monitoring button JK, standby button DJ, unlock button KS in " black and white wall hanging video doorbell " circuit.Off-premises station is connected by 6 lines with indoor set.Its technical essential is: 1, when the visitor, by pressing call button AN, make tone frequency channel wire ground connection, it has two effects, the one, make 555 2 pin ground connection, 555 enter monostability, 3 pin output high level, relay J 1 adhesive, its contact J1-1 closure, for display and video camera and illumination, speaking circuit provide power supply, the 2nd, trigger and call out sheet BELL, when decontroling AN, the audio signal of BELL output " ding-dong; you are good please open the door " send the indoor and outdoor speaking circuit to amplify and sound from loudspeaker through tone frequency channel wire.2, when owner mentions mobile phone, switch hook SW upsprings, and the microphone MIC lower end of indoor speaking circuit and 555 2 pin are ground connection simultaneously, realizes both sides' intercommunication.When 3, pressing standby button DJ, 555 4 pin ground connection reset it by force, relay J 1 dead electricity, and J1-1 disconnects, and doorbell recovers holding state.When 4, pressing unlock button KS, relay J 2 adhesives, contact J2-1 closure, electric control lock gets electric execution unlocking action.5, when alarming line disconnects, the alarm trigger end gets electric being triggered, and buzzer sends chimes of doom.
There is following weak point for prior art.1, the visitor must press call button and could call out owner, and it is convenient inadequately that this says for the visitor, and mechanical switch is limited useful life.2, a state arbitration functions is not arranged, forget when shutting and in time to remind owner after opening for Yin Men, have certain potential safety hazard.3, can not control automatically according to ambient brightness with illumination for shooting.4, on line is many between the indoor unit and outdoor unit, installation and maintenance inconvenience.
Summary of the invention
In order to overcome the technological deficiency of existing video doorbell circuit structure, the utility model provides a kind of video intercom doorbell that can the perception visitor, and this video intercom doorbell can not only be discerned bearer identity automatically, and can have certain intelligent.
The technical scheme that its technical problem that solves the utility model adopts is:
This machine is made of off-premises station and indoor set two parts, and off-premises station is made up of with shooting control circuit, bell signal circuit, manual control circuit, speech control circuit and video camera, outdoor intercom infrared transmitter, infrared radiation receiving circuit, ambient brightness sample circuit, door status determination circuit, the control circuit of unblanking, lighting circuit, single-chip microcomputer, outdoor intercommunication; Indoor set is connected to form by display control circuit, display, intercom and power supply.Single-chip microcomputer is connected with shooting control circuit, bell signal circuit, manual control circuit, speech control circuit with infrared transmitter, infrared radiation receiving circuit, ambient brightness sample circuit, door status determination circuit, the control circuit of unblanking, lighting circuit, outdoor intercommunication; Outdoor intercommunication is connected with video camera with the shooting control circuit, outdoor intercommunication is connected with outdoor intercom with shooting control circuit, bell signal circuit, manual control circuit, speech control circuit, be connected by 4 lines between off-premises station and indoor set two parts, i.e. power supply main track, power supply negative wire, audio signal wire, video signal cable.
On function, one of main distinction of this machine and conventional visualization entryphone is not establish bell button, and messenger need only get final product near off-premises station certain distance and certain hour.In order to realize this function, on circuit, adopted infrared ray initiatively to launch and reflected reception technique, and launch the generation of infrared signal and the signal identification that receives is finished by a slice single-chip microcomputer IC3 with control.Two of difference is opening of display and closes and need not manual intervention that the realization of this function is to adopt having or not of vision signal on circuit, the mains switch of control display.Three of difference is to have increased a door state arbitration functions, is the master control device owing to adopt single-chip microcomputer IC3, and other function of complete machine is also controlled by single-chip microcomputer IC3, thereby has certain intelligent.
Circuitry is with single-chip microcomputer IC3, and model AT89C2051 is a kernel control chip.Single-chip microcomputer IC3IC3 finishes in circulation under the control of program that brightness detects, the generation of door state (opening or closing) identification, identification that whether " supervising/standby " button is pressed and decontroled, infrared signal and receive after processing, whether personnel are visitor's judgement outdoors.
The present invention has following function: to visitor's automatic judgement, calling, visual, intercommunication, door state judge, ambient brightness is judged and throw light on, unblank, supervise, function such as tamper-proof.With regard to control section, with single-chip microcomputer IC3, model AT89C2051 is the master control device in the circuit of the present invention.Be provided with magnetic switch K1, supervise/standby button K2, unlock button K3.Off-premises station is connected by 4 lines with indoor set.Technical essential is: 1, produce and control infrared light-emitting diode to the spatial emission infrared signal by single-chip microcomputer IC3, as the visitor when the off-premises station, part infrared signal is reflexed on the integrated reception RPM-6938 by visitor's health, through the LM393 shaping, send single-chip microcomputer IC3 to discern, judge, after confirming as the visitor, single-chip microcomputer IC3 output signal is sent the control end of outdoor intercommunication with shooting control circuit IC6 (TWH8778), the TWH8778 conducting provides power supply for video camera and outdoor talkback circuit, single-chip microcomputer IC3 sends call signal simultaneously, through indoor, outer talkback circuit amplification is sent continuous two " ding-dong " sound from two loudspeaker.The vision signal of video camera output is sent indoor set and is divided two-way through video signal cable, one the tunnel directly send the display video input, another road element around IC10 (LM1881) reaches is isolated the field frequency signal, and obtain the control end that a direct current voltage send display power supply controll block IC11 (TWH8778) through multiplication of voltage, rectification, filtering, the TWH8778 conducting provides power supply for display, the outer situation of display show gate.2, when owner mentions mobile phone, can converse with the visitor, carry out both sides' intercommunication.If 3 are opened, magnetic switch K1 disconnects, and after single-chip microcomputer IC3 received this signal, the output alerting signal sent indoor talkback circuit to send " ding-dong " sound, then sends " toot " prompt tone three every 5S, shuts until door.4, at ordinary times " monitoring " state is when clicking " supervising/standby " button K2, make single-chip microcomputer IC3 obtain a low level pulse by audio signal wire, single-chip microcomputer IC3 receives behind the signal by outdoor intercommunication and shooting controll block TWH8778 provides power supply for video camera and outdoor talkback circuit, make display show outdoor situations 1 minute, if oneself was at that time " supervising " or during " intercommunication " state, if click " supervising/standby " button K2, this machine will return to " monitoring " state immediately.5, when pressing " unblanking " button K3, the supply voltage that is sent to off-premises station becomes 12V by 9V, provide rated operational voltage for electric control lock on the one hand, the analog comparator identification that carries by single-chip microcomputer IC3 on the other hand, send the control end of a signal to the control circuit TWH8752 that unblanks, the TWH8752 conducting provides the power supply of unblanking for electric control lock.6, when light was dark, single-chip microcomputer IC3 opened illuminating lamp at the video camera duration of work, and the video camera non-working time is closed illuminating lamp.7, because employing infrared ray active probe mode is surveyed the personnel near off-premises station, thereby these facility have certain tamper-proof and anti-theft feature.
The beneficial effects of the utility model are the problems that exist at prior art, adopt single-chip microcomputer IC3 control technology, have overcome deficiency of the prior art, have reached following purpose.1, utilizes single-chip microcomputer IC3 control infra-red detection circuit, automatically bearer identity is discerned, if confirm as the visitor, single-chip microcomputer IC3 sends a series of control signals, comprising: notify owner, connect outdoor to the camera power supply of making peace, open display, according to the switch of ambient brightness control illumination etc.2, utilize magnet and tongue tube to form magnetic switch, under single-chip microcomputer IC3 control, the state of monitoring door (opening or closing) at any time.3, from composite video signal, isolate field sync signal, and control the mains switch display of display after treatment.4, adopt " joint use technology " that various signals are integrated, reduced on line quantity between off-premises station and the indoor set, make things convenient for installation and maintenance.5, because employing single-chip microcomputer IC3 is the master control device, and modification of program is convenient, be convenient to improving and upgrading of every function.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is an off-premises station structure chart of the present utility model.
Fig. 2 is indoor machine structure figure of the present utility model.
Fig. 3 is the utility model electrical block diagram.
Fig. 4 is the utility model electrical block diagram.
Fig. 5 is the utility model electrical block diagram.
Fig. 6 is the utility model electrical block diagram.
Fig. 7 is this practical schematic flow sheet.
Embodiment
Embodiment 1: this machine is made of off-premises station (shown in Figure 1) and indoor set (shown in Figure 2) two parts,
＜one,〉infrared acquisition and visitor identification and control
By programming, make single-chip microcomputer IC3 produce the infrared signal of certain frequency, after amplifying to off-premises station the place ahead directional transmissions, as the people near off-premises station and in the coverage scope time, infrared ray is reflected on the integrated reception head, the INT0 end of input single-chip microcomputer IC3 after shaping causes that single-chip microcomputer IC3 interrupts once.Opening in limited time simultaneously, counter picks up counting.
Whether the outer personnel of opposite house are that visitor's judgement realizes by 2 measures, the one, the coverage of restriction infrared acquisition, promptly less than 50CM, prevented from pedestrian's erroneous judgement to be the visitor when far away, the 2nd, the identification on time of staying in front of the door, this machine be set at continue the time of staying during greater than 1.5S for effectively, otherwise promptly think the passerby.And be by programming greater than the 1.5S time in fact, whether (about 125MS) detection at regular intervals once has people's method to determine outdoors.Whenever detect once in certain hour (2S), single-chip microcomputer IC3 interrupts once, and counting is once, when 2S time inside counting value less than 12 the time, then remove counting, indicator light is once glittering simultaneously.2S is set prescribes a time limit the time greater than the purpose of surveying 12 the required 1.5S of count value times, be to consider that the visitor is having certain activity in front of the door, in time after detecting the visitor for the first time and opening the counter of prescribing a time limit, personnel might be movable outside effective investigative range, 0.5S leeway is set for this reason, promptly in the time that may detect 16 count values, detects 12 count values and be effectively.When confirming that personnel are for behind the visitor outdoors, single-chip microcomputer IC3 at first opens video camera and outdoor talkback circuit power supply, send the talkback circuit amplification of bell signal then by off-premises station and indoor set, from loudspeaker, send " ding-dong " sound, the vision signal of simultaneous camera is sent indoor set by video signal cable, makes the outer situation of display show gate.
＜two,〉active supervises and unblanks
When pressing " supervising/standby " button of indoor set, audio signal wire is by instant earthing, after single-chip microcomputer IC3 receives this signal by inquiry, when decontroling, opens by button video camera and off-premises station talkback circuit power supply, can observe and monitor situation outdoors this moment, gets back to " monitoring " state after one minute automatically.
The analog comparator that unlocking signal utilizes AT89C2051 to carry is differentiated, the P1.0 terminal potential is by resistance R 22, R23 carries out dividing potential drop to 5V voltage and is about 3.4V, when pressing " unblanking " button, the supply voltage of giving off-premises station becomes 12V by 9V, provide rated voltage for electric control lock on the one hand, the current potential of P1.1 end is through resistance R 26 on the other hand, the R27 dividing potential drop rises to 3.8V by 2.9V at ordinary times, the output P3.6 of comparator (this end in single-chip microcomputer IC3 inside not outside the lead-out tablet) reduces to low level by high level, the level that single-chip microcomputer IC3 inquires P3.6 changes after delay confirmation, the control circuit of unblanking is opened electric control lock, sends " ding-dong " sound simultaneously.Unlocking function is just effective for only press " unblanking " button during " supervising " and " intercommunication " by software setting, both made during " monitoring " and pressed " unblanking " button and can not open electric control lock, the purpose of doing like this is to guarantee can observe situation outdoors at any time in the process of unblanking.
＜three,〉brightness detects and door state recognition and control
The testing circuit of brightness is simpler, the conducting of controlling triode with the change in resistance of photo resistance with end, import single-chip microcomputer IC3 then and judge daytime or night by it.
Because being subject to extraneous light, infra-red detection disturbs, daytime is because spurious rays is more, under the equivalent signals emissive porwer, detection range is nearer, night is far away because of dull thread interference detection distance, for balance round the clock between the variation of detection range, be provided with the automatic control ring of emissive porwer in the infrared acquisition circuit, method is to increase emission current daytime, reduces emission current night.At monitoring period, if light is darker, illumination control circuit is lighted the red light emitting diodes D2 of off-premises station, indication doorbell position, and in effective detection range, light-emitting diode D2 flicker continuously extremely confirms as if the visitor.During " supervising " and " intercommunication ", if light is darker, illumination control circuit will be opened 4 high brightness LED D3, D4, D5, the D6 around the video camera, for shooting provides illumination.
The magnetic switch of door status determination circuit is made up of magnet and tongue tube, when door is closed, tongue tube is because the suction of magnet makes switch closure, tongue tube leaves magnet when door is opened, tongue tube disconnects owing to the suction that loses magnet makes contact, when single-chip microcomputer IC3 detects the switch disconnection, it is the state that decision gate is in out, open video camera and outdoor talkback circuit power supply this moment, send the talkback circuit amplification of bell signal then by off-premises station and indoor set, send " ding-dong " sound from loudspeaker, the vision signal of simultaneous camera is sent indoor set by video signal cable, makes the outer situation of display show gate.This moment mention mobile phone can with outdoor intercommunication.After this send " toot " prompt tone three every 5S, till door is shut.
＜four,〉control of intercommunication and image demonstration
Half-duplex mode is adopted in outdoor and indoor conversation, to adapt to the custom that people receive calls.For preventing that off-premises station and indoor set loudspeaker from producing noise at ordinary times, the power supply of outdoor talkback circuit is controlled by outdoor intercommunication and shooting power control circuit by single-chip microcomputer IC3, do not power up at ordinary times, indoor intercommunication is partly adopted and is carried the machine talking mode, when not carrying machine by switch hook with circuit input end ground connection, thereby at ordinary times, no matter indoor set still is all not have any noise in the off-premises station loudspeaker.
Camera power supply is implemented control by single-chip microcomputer IC3 by outdoor intercommunication and shooting power control circuit equally.When confirm that the visitor is arranged, when pressing " supervising " button or door and opening, video camera gets electric work, the vision signal of its output is sent indoor set and is divided two-way through video signal cable, one the tunnel directly send the display video input, display control circuit is sent on another road, at first isolates the field frequency signal from vision signal, produces direct voltage after rectification, filtering, automatically cut off display power supply when power controlling switch opens display power supply, no video signal.
As Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, IC3 is master control device AT89C2051 among Fig. 3, and C7, R15 constitute the simple and easy electrify restoration circuit of single-chip microcomputer IC3, and crystal oscillator Y1, C4, the relevant pin with IC3 of C5 constitute the clock circuit of IC3.Photo resistance RS1, Q4, R13, R14 composing environment luma samples circuit, when light was strong, RS1 resistance was little, and Q4 ends, and makes the P3.0 end of IC3 be high level, otherwise is low level.Element was formed illumination control circuit around Q7 reached, and the about 30MA of operating current is connected in 4 light-emitting diode D3, D4, D5, D6 backs in parallel in twos.The signal of the P3.1 end output of IC3 is through Q1, after two compound amplifications of triode of Q2 by infrared light emitting diode D1 to spatial emission, W1 is used to adjust transmit signal strength, triode Q3, R9, R12 forms infrared intensity automatic control circuit, when surround lighting is brighter, the P3.4 output high level of IC3, triode Q3 is saturated, infrared signal is by triode Q1, Q2 amplifies the C of back by triode Q3, the E utmost point is launched to D1, when surround lighting is dark, the P3.4 end output low level of IC3, triode Q3 ends, and infrared signal is sent D1 emission after the R9 current limliting, to reduce emissive porwer.The integrated infrared receiving terminal RPM-6938 of IC1, when the reception head is not received signal, 1 pin is a high level, receive signal after inner amplification, filtering, demodulation make 1 pin become low level, IC1, IC2A (LM393) form infrared radiation receiving circuit with element on every side, the signal of IC1 output send the P3.2 end of IC3 after the IC2A shaping, the low level pulse signal makes IC3 produce interruption.K1 is a magnetic switch, triode Q5 and K1 etc. form the door state identification circuit, tongue tube closure when door is shut, when opening, tongue tube makes two contacts disconnect triode Q5 saturation conduction, its collector electrode output low level because of leaving magnet, the P3.7 that is IC3 is an electronegative potential, informs the state that single-chip microcomputer IC3 door is in out.And close formation such as K2 and triode Q6 and " supervise/standby " control circuit, triode Q6 and element composition emitter follower on every side herein are to reduce the influence to audio signal.The unblank control circuit control electric control lock L1 of the P1.6 of IC3 by forming by IC4 (TWH8752) etc.
The P1.5 output signal of single-chip microcomputer IC3 is sent the control end of outdoor intercommunication with shooting control circuit IC6 (TWH8778), and TWH8778 provides power supply for video camera and outdoor talkback circuit.
IC6 is outdoor intercommunication and shooting power control switch device, this device adopts the TWH8778 of Guangdong Da Hua Electronics Factory, its major parameter is: maximum input voltage 30V, control utmost point cut-in voltage 1.6V, operating current＜1A, operating frequency 15KHZ (TWH8752 except that operating current＜4A, the same TWH8778 of other parameter).
Video camera adopts miniature CMOS camera, is characterized in that volume is little, low in energy consumption, low price.IC10, IC11 and peripheral element constitute the display control circuit (see figure 6), wherein IC10 is that synchronizing signal is separated integrated circuit LM1881, when 2 pin are imported the vision signal of 0.5-2Vp-p, 3 pin are promptly isolated field sync signal, and other each pin function is: the output of 1-composite sync, 4-power-, the pulse output of 5-forward position, 6-external RC, 7-parity field sign, 8-power supply (8-12V).
The field frequency signal of 3 pin output is through C43, C46, D10, D11 voltage multiplying rectifier, and R63, R64 dividing potential drop obtain the direct voltage of about 2V, are input to control end 5 pin of IC11 (TWH8778), and IC11 the 2nd, 3 pin output 12V voltage is for display.Display adopts 5.5 inches black and white displays.
Element was formed audio frequency preamplifier around outdoor talkback circuit was reached by IC8B (TDA2822M), the anti-side-tone circuit that signal after the amplification send Q8, C19, C20, W2 etc. to form, the Q8 crack initiation acts on mutually, from the opposite signal of Q8 collector and emitter difference output phase, wherein send the talkback circuit of indoor set through C21 by audio signal wire from the signal one tunnel of collector electrode output, the antiphase signal of another Lu Yucong emitter output is not through W2 cancel out each other (balancing out fully).And send 7 pin of power discharging IC 8A (TDA2822M) through C21, W2 centre cap and W3 from the audio signal that the indoor set talkback circuit is sent here, amplifying signal one tunnel send also original sound of loudspeaker, the speech control circuit is sent on another road, promptly through C27, C28, D8, D9 voltage multiplying rectifier, R46, R8 divide negative input end 6 pin of force feed IC2B, positive input terminal 5 pin of IC2B are 0.5V by resistance R 5, R6 dividing potential drop, when 6 pin current potentials are higher than 5 pin, 7 pin output electronegative potential send the INT1 end of IC3, single-chip microcomputer IC3 is produced interrupt, prolong the air time.The indoor set talkback circuit is identical with the off-premises station principle.
Power circuit such as Fig. 5 are AC/DC, and battery adopts the floating charge mode.Outdoor intercom, intercom adopt the existing market to purchase.
Program flow diagram such as Fig. 7, on program structure, adopt modularized design, mainly comprise following a few part: the control of main program, emissive porwer, a door state indicates, are supervised, monitoring, intercommunication, throw light on, unblank, ring, time-delay, infrared induction are interrupted, speech interruption supervisor.
Main program mainly is responsible for the emission of infrared signal, to visitor's judgement with to ambient brightness, door state (opening or closing), " supervising/standby " judgement whether button is pressed, call subprograms corresponding according to judged result then.For preventing the influence of transition factors such as switch from fluttering, the judgement whether ambient brightness, door state (opening or closing), " supervising/standby " button are pressed, the judgement of delaying time of the method for taking to follow the main program cycle count, because program implementation must take certain hour, the every circulation primary of main program, ambient brightness, door state and " supervising/standby " button are inquired about once, counted simultaneously.The for example judgement of opposite house state, when continuous counter is for 3 times with a kind of state, or there are 3 times in 4 times for the time with a kind of state at counting, promptly confirm actual this kind (opening or closing) state that is in, if at equal full 3 times of the meter of every kind of state of count in 4 times, then will count removing, count again, to determine actual which kind of state that is in.Utilize this kind method to judge, can eliminate the erroneous judgement that uncertain factor may cause, do not take the program work time again separately.
In monitoring program, make the infrared signal of P3.1 mouth output 12.67KHZ frequency by programming, why be designed to 12.67KHZ, be because PROG-100 programming instruction to take the machine cycle longer, output 38KHZ frequency ratio is difficulty, and 3 subharmonic of 12.67KHZ are 38.01KHZ, and very near 38KHZ, it is fine to be with operating frequency that the reception head of 38KHZ receives actual effect.INT0 interrupts being placed in the monitoring program activating, R010 is used for recorder infrared signal number of times, R011 is used in limited time, when the visitor, infrared signal is reflected, and causes that INT0 interrupts once, in interrupt routine, R010 adds one, and Active Timer R011 picks up counting when interrupting for the first time simultaneously, interrupts the beginning of the program that directly turns back to when returning.Power supply E is 12V, and power supply E1 is 9V, and power supply E2 is 9-12V.
The effect of invention: 1, when the visitor near off-premises station the place ahead distance less than 50CM, the time of staying greater than 1.5S (limiting near distance and the time of staying is that this machine judges that coming the people is that visitor or the person of passing by on one's way two are main Measure) time, indoor set sends continuous twice " ding-dong " sound, and interval 5S clock sends continuous twice again " ding-dong " sound, the simultaneously outer situation of display show gate. If this moment, light was darker, will automatically open video camera LED for illumination. If mention mobile phone can with visitor's intercommunication, intercommunication time length is not limit. 2, Dang Men Open moment, send " ding-dong " sound, simultaneously the outer situation of display show gate. Mention mobile phone this moment can With outdoor talkback. After this send " toot " sound three every 5S, until the door shut till. 3, in " monitoring " During this time when pressing " supervising/standby " button, the outer situation of display show gate one minute, during can hear door Outer sound, mention mobile phone can with outdoors intercommunication, intercommunication time length is not limit. In " intercommunication " and " supervising " Display continues to get back to " monitoring " state behind the demonstration 20S after putting back to during this time mobile phone; As press " supervising/standby " This machine of button is got back to " monitoring " state immediately. 4, during " intercommunication " and " supervising ", press " unblanking " Button can be opened electric control lock, sends simultaneously " ding-dong " sound. 5, light is darker during " monitoring " The time, the off-premises station indicator lamp is bright, indication doorbell position, if the close off-premises station distance of visitor is less than 50CM at this moment, Indicator lamp will glimmer continuously, and the visitor has been found in expression, only confirms that directly visitor's identity stops. 6, display Power supply need not manual intervention by the vision signal Synchronization Control. 7, line only needs 4 between indoor unit and outdoor unit.
Claims (1)
1. an energy perception visitor video intercom doorbell, this machine is made of off-premises station and indoor set two parts, and off-premises station is made up of with shooting control circuit, bell signal circuit, manual control circuit, speech control circuit and video camera, outdoor intercom infrared transmitter, infrared radiation receiving circuit, ambient brightness sample circuit, door status determination circuit, the control circuit of unblanking, lighting circuit, single-chip microcomputer, outdoor intercommunication; Indoor set is connected to form by display control circuit, display, intercom and power supply; It is characterized in that: single-chip microcomputer is connected with shooting control circuit, bell signal circuit, manual control circuit, speech control circuit with infrared transmitter, infrared radiation receiving circuit, ambient brightness sample circuit, door status determination circuit, the control circuit of unblanking, lighting circuit, outdoor intercommunication; Outdoor intercommunication is connected with video camera with the shooting control circuit, outdoor intercommunication is connected with outdoor intercom with shooting control circuit, bell signal circuit, manual control circuit, speech control circuit, connect by 4 lines between two parts, i.e. power supply main track, power supply negative wire, audio signal wire, video signal cable.
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| CN 200520017171 CN2779766Y (en) | 2005-04-22 | 2005-04-22 | Visualized doorbell capable of sensing visitors |
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| CN 200520017171 CN2779766Y (en) | 2005-04-22 | 2005-04-22 | Visualized doorbell capable of sensing visitors |
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| CN101877153A (en) * | 2009-04-30 | 2010-11-03 | Abb股份有限公司 | Residential communication system with access control device |
| US20150116107A1 (en) * | 2012-09-21 | 2015-04-30 | Google Inc. | Initially detecting a visitor at a smart-home |
| CN105245843A (en) * | 2015-10-10 | 2016-01-13 | 江西智能无限物联科技有限公司 | Smart peephole and smart peephole control system |
| CN105246227A (en) * | 2015-11-18 | 2016-01-13 | 周俊良 | Automatic-inductive lamp |
| CN105763811A (en) * | 2016-03-31 | 2016-07-13 | 努比亚技术有限公司 | Shooting control device and method |
| US9626841B2 (en) | 2012-09-21 | 2017-04-18 | Google Inc. | Occupant notification of visitor interaction with a doorbell at a smart-home |
| US9640055B2 (en) | 2012-09-21 | 2017-05-02 | Google Inc. | Interacting with a detected visitor at an entryway to a smart-home |
| CN106652268A (en) * | 2017-01-17 | 2017-05-10 | 成都华固特种门窗有限公司 | Intelligent calling security and protection system based on security door |
| US9652912B2 (en) | 2012-09-21 | 2017-05-16 | Google Inc. | Secure handling of unsupervised package drop off at a smart-home |
| US9711036B2 (en) | 2012-09-21 | 2017-07-18 | Google Inc. | Leveraging neighborhood to handle potential visitor at a smart-home |
| US9953514B2 (en) | 2012-09-21 | 2018-04-24 | Google Llc | Visitor feedback to visitor interaction with a doorbell at a smart-home |
| US9959727B2 (en) | 2012-09-21 | 2018-05-01 | Google Llc | Handling visitor interaction at a smart-home in a do not disturb mode |
| US9960929B2 (en) | 2012-09-21 | 2018-05-01 | Google Llc | Environmental sensing with a doorbell at a smart-home |
| US9978238B2 (en) | 2012-09-21 | 2018-05-22 | Google Llc | Visitor options at an entryway to a smart-home |
| US10510035B2 (en) | 2012-09-21 | 2019-12-17 | Google Llc | Limited access invitation handling at a smart-home |
| US10735216B2 (en) | 2012-09-21 | 2020-08-04 | Google Llc | Handling security services visitor at a smart-home |
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2005
- 2005-04-22 CN CN 200520017171 patent/CN2779766Y/en not_active Expired - Fee Related
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