CN2893807Y - TV color display safety door bell - Google Patents
TV color display safety door bell Download PDFInfo
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- CN2893807Y CN2893807Y CN 200520052350 CN200520052350U CN2893807Y CN 2893807 Y CN2893807 Y CN 2893807Y CN 200520052350 CN200520052350 CN 200520052350 CN 200520052350 U CN200520052350 U CN 200520052350U CN 2893807 Y CN2893807 Y CN 2893807Y
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Abstract
The utility model discloses a TV color display security protection doorbell relates to an electronic product, by indoor host control device 40, color TV set 18, signal distribution box 27, outdoor extension controlling means 39 and alarm control device 25 constitute, utilize domestic colored remote control TV set as the monitor, can remote control and automatic control TV set on-off, according to state automatic switch-over screen display image time length, time and image at that time are typeeed automatically, and collect remote control screen display and monitor, the conversation is talkbacked, unblanked, remote control warning, the cloth defence, withdraw defence, function in an organic whole such as switch TV set power. The visible doorbell has the advantages of no change of any part of the television, no influence on normal television watching, good visual effect, convenient operation, small investment and the like, is suitable for residential buildings in residential districts, various families and single users, can be used as security facilities in various public places, and is an ideal security system visible doorbell.
Description
Technical field
The utility model relates to a kind of electronics security product, particularly a kind of TV colour display screen security protection doorbell.
Background technology
At present, the video doorbell of Xiao Shouing is of a great variety on the market, shows black and white video display supervisory system but great majority belong to smaller screen, and image frame is little, resolution is low, intelligence control ability.These video doorbells all need the higher display of configuration rates, and its cost is also higher; Simultaneously, because the size of display is less, so visual effect is also relatively poor.There is not supporting security protection automatic alarm system in addition, thereby, its function singleness.
The utility model content
Technical problem to be solved in the utility model provide a kind of utilize all kinds of remote control color tvs of family expenses as monitor, do not change any parts of televisor, adopt advanced digital technology to realize switch wireless, the dual remote-controlled television set power supply of infrared ray, show according to the operating conditions of TV set screen that automaticallyes switch that time length, remote control screen show supervision, intercommunication, unblank, automatic dialing alarm, union monitors, monitors, records a video, televiews, warning is the visual security protection doorbell of one automatically.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: design a kind of TV colour display screen security protection doorbell: comprise indoor host computer control device 40, off-premises extension control device 39, signal allocation box 27, televisor 18; Indoor host computer control device 40 is connected with colour television set 18 with radio frequency line 20 by AC power cord 19; Indoor host computer control device 40 is connected with signal distributor 27 by signal control line 29, vision signal control line 28 with off-premises extension control device 39;
A, indoor host computer control device 40 comprise by time cycle controller 5, wireless remote control operating means 32, infrared radio warning device 10, video recording/reproducing and conversion equipment 23, the wireless remote control talkback unit 42 of power control 2 through power of alterating and direct current line and signal wire connection;
B, off-premises extension control device 39 comprise the colour imagery shot 36, digital display circuit 38, digital dial-up circuit 37, signal controlling and the intercommunication that are communicated with through the direct current supply line of its output by off-premises station power supply 33 and power amplifier 35, electric control lock device 34, and direct supply, picture signal and speech signal are transferred to signal distributor 27, indoor host computer control device 40 through grid line.
Television screen display switching device shifter 46 comprises time distributor circuit 12, photoelectrical coupler 13,14,15, TV remote playback circuitry 16, infrared transmitter 17; Time distributor circuit 12 is accepted power control 2, direct current on-off control circuit 7 and timing oscillator 11 respectively, and connects photoelectrical coupler 13,14,15 respectively; TV remote playback circuitry 16 is subjected to the control of power control 2 and photoelectrical coupler 13,14,15 respectively, and itself controls infrared transmitter 17 again; Infrared transmitter 17 sends the control infrared ray, and the picture of control televisor 18 switches.
Video recording/reproducing and conversion equipment 23 are made up of vision signal playback circuitry 22 and AV/TV change-over circuit 21, are transferred to televisor 18 by radio frequency line 20.
Wireless remote control operating means 32 comprises wireless remote control receiver module 30, TV set power break-make and intercommunication conversion and alarm release module 31 and infrared wireless remote control device 24, and infrared wireless remote control device 24 is independent of outside the indoor host computer control device 40.
Infrared radio warning device 10 is made of wireless remote control receiver module 30, warning circuit 8, telephone automatic dialing warning circuit 9 and infrared and radio probe 26, and infrared and radio probe 26 is independent of outside the indoor host computer control device 40.
Wireless remote control talkback unit 42 comprises indoor talkback circuit 43, audio power amplifier circuit 41, signal controlling and intercommunication and power amplifier 35, infrared wireless remote control device 24, signal controlling and intercommunication and power amplifier 35 are installed in the off-premises extension control device 39, and infrared wireless remote control device 24 is independent of outside indoor host computer control device 40 and the off-premises extension control device 39.
TV colour display screen security protection doorbell of the present utility model, owing to adopted the family expenses colour television set as monitor, so image frame is bigger, display effect is good.Simultaneously, the power supply of colour television set is subjected to the control of indoor host computer control device and wireless remote control operating means, and its signal is by radio frequency line input, thereby, do not need to change any parts of televisor.In addition, also be provided with infrared radio warning device, wireless remote control talkback unit, video recording/reproducing and conversion equipment, television screen display switching device shifter, electric control lock device 34 etc. in the utility model, so, TV colour display screen security protection doorbell of the present utility model has the screen that automaticallyes switch and shows that time length, remote control screen show supervision, intercommunication, unblank, automatic dialing alarm, and union monitors, monitors, records a video, televiews, function such as warning automatically.Its model machine is through on probation, and effect is splendid; Particularly as the televisor of monitor, its AC power is only connected when seeing TV, or just connects automatically when there is a ring at the door, cuts off automatically again thereafter, and other times then are in the outage holding state, this not only can saves energy, the serviceable life that more can guarantee televisor.
Description of drawings
Accompanying drawing 1 is an electrical principle block diagram of the present utility model.
Among the figure: the 20th, the radio frequency line of signal input color televisor, the 19th, input to the 220V AC power cord of colour television set after controlled, 44 and 45 is 220V AC power cords, the 28th, vision signal control line, the 29th, signal control line.
Embodiment
Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail.
Present embodiment comprises indoor host computer control device 40, off-premises extension control device 39, signal distributor 27, alarm control unit 25 and colour television set 18.
Indoor host computer control device 40 is made of power control 2, time cycle controller 5, wireless remote control operating means 32, infrared radio warning device 10, video recording/reproducing and conversion equipment 23, wireless remote control talkback unit 42.Power control 2 comprises Switching Power Supply 1 and TV set power on-off circuit 3 and operating conditions of TV set testing circuit 4,220V exchanges and goes into Switching Power Supply 1 by power lead 44 1 pass, respectively lead to wireless remote control talkback unit 42, time cycle controller 5, infrared radio warning device 10, the wireless remote control operating means 32 of indoor host computer control device 40, DC voltage is provided thereafter; 220V exchanges and goes into TV set power on-off circuit 3 by another pass of power lead 44, provides in check alternating current 220V power supply by power control line 19 to televisor thereafter, and TV set power on-off circuit 3 also is connected with wireless remote control operating means 32; Operating conditions of TV set testing circuit 4 is connected with TV set power on-off circuit 3, extracts sampling voltage and gives time cycle controller 5.Time cycle controller 5 comprises and trigger starting and delay protection circuit 6, direct current on-off control circuit 7, timing oscillator 11, television screen display switching device shifter 46, television screen display switching device shifter 46 comprises time distributor circuit 12, photoelectrical coupler 13,14,15, TV remote playback circuitry 16, infrared transmitter 17 again, and the picture of control televisor 18 switches; Trigger to start and the DC leadout of delay protection circuit 6 one side and Switching Power Supply 1 joins, on the other hand to direct current on-off control circuit 7 output control signals, also be connected and the common line of wireless remote control talkback unit 42 joins with wireless remote control operating means 32, simultaneously, also be connected with TV set power on-off circuit 3; Direct current on-off control circuit 7 joins with the DC leadout of Switching Power Supply 1 on the one hand, provides control signal to timing oscillator 11 on the other hand, also joins with Switching Power Supply 1; Time distributor circuit 12 in timing oscillator 11 and the television screen display switching device shifter 46 joins; Time distributor circuit 12 is defeated by photoelectrical coupler 13,14,15 respectively with signal, and its output separately flows to TV remote playback circuitry 16; Time distributor circuit 12 and TV remote playback circuitry 16 all join with the sampled signal line of operating conditions of TV set testing circuit 4; Infrared transmitter 17 passes to colour television set 18 by infrared emission tube after accepting signal that TV remote playback circuitry 16 transmits.Wireless remote control operating means 32 comprises wireless remote control receiver module 30, TV set power break-make and intercommunication conversion and alarm release module 31 and infrared wireless remote control device 24, and infrared wireless remote control device 24 is independent of outside the indoor host computer control device 40; Wireless remote control receiver module 30 is shared with infrared radio warning device 10, both accepted the DC leadout of Switching Power Supply 1, to TV set power break-make and intercommunication conversion and alarm release module 31 output signals, also provide signal simultaneously again to infrared radio warning device 10; TV set power break-make and intercommunication conversion and alarm release module 31 are accepted the DC leadout of Switching Power Supply 1 and the output signal of module 31 on the one hand, provide signal to TV set power on-off circuit 3, wireless remote control talkback unit 42, wireless remote control operating means 32 respectively on the other hand.Wireless remote control talkback unit 42 comprises indoor talkback circuit 43, audio power amplifier circuit 41, signal controlling and intercommunication and power amplifier 35 and infrared wireless remote control device 24, signal controlling and intercommunication and power amplifier 35 are installed in the off-premises extension control device 39, and infrared wireless remote control device 24 is independent of outside indoor host computer control device 40 and the off-premises extension control device 39; Indoor talkback circuit 43 is accepted the DC leadout of Switching Power Supply 1 and the output signal of module 31; also transmit and received signal to signal distributor 27; simultaneously, also start and delay protection circuit 6 conveying and received signals to audio power amplifier circuit 41, wireless remote control receiver module 30 and triggering respectively.Infrared radio warning device 10 is made of wireless remote control receiver module 30, warning circuit 8, telephone automatic dialing warning circuit 9 and infrared and radio probe 26, and infrared and radio probe 26 is independent of outside the indoor host computer control device 40; Wireless remote control receiver module 30 is carried signal to warning circuit 8 and telephone automatic dialing warning circuit 9 respectively; Warning circuit 8 had both been accepted the DC leadout of Switching Power Supply 1, and also the signal that it is sent is carried and received to the output signal of module 31 also to telephone automatic dialing warning circuit 9; Telephone automatic dialing warning circuit 9 is also accepted the DC leadout of Switching Power Supply 1.Video recording/reproducing and conversion equipment 23 are made up of vision signal playback circuitry 22 and AV/TV change-over circuit 21, are transferred to televisor 18 by radio frequency line 20; Vision signal playback circuitry 22 is the signal of acknowledge(ment) signal divider 27 transmission on the one hand, accept the signal (this signal also joins with timing oscillator 11, time distributor circuit 12, AV/TV change-over circuit 21) that direct current on-off control circuit 7 transmits on the other hand, simultaneously, also direct and AV/TV change-over circuit 21 joins; AV/TV change-over circuit 21 connects radio frequency line 20.
Off-premises extension control device 39 comprises colour imagery shot 36, digital display circuit 38, digital dial-up circuit 37, signal controlling and intercommunication and power amplifier 35, electric control lock device 34, off-premises station power supply 33.Off-premises station power supply 33 is introduced AC power by 220V AC power cord 45, provides DC control supply to digital display circuit 38, digital dial-up circuit 37, signal controlling and intercommunication and power amplifier 35 respectively; The signal that colour imagery shot 36 acknowledge(ment) signal controls and intercommunication and power amplifier 35 transmit is to vision signal control line 28 transmission video signals; The signal that 34 acknowledge(ment) signal controls of electric control lock device and intercommunication and power amplifier 35 transmit; Digital display circuit 38 is accepted the dialing signal of digital dial-up circuit 37; Digital dial-up circuit 37 is to signal controlling and intercommunication and power amplifier 35 conveying and received signals.
During use, the 220V AC power is introduced into power control 2 through power plug wire 44, divide to two-way, one the tunnel is defeated by televisor 18 through power lead 19 again behind TV set power on-off circuit 3, operating conditions of TV set testing circuit 4 extracts from TV set power on-off circuit 3 that sampling voltage flows to time distributor circuit 12 and TV remote playback circuitry 16 is controlled; Another road is transported to Switching Power Supply 1 and is produced the higher-order of oscillation and be transformed into the 12V direct supply and transport to each device and circuit, and operating voltage and control voltage are provided, and the input voltage range of Switching Power Supply 1 is at 80V～250V.
Off-premises station power supply 33 is exported 12V voltage by the 220V AC power and is given each circuit of off-premises station and signal distributor 27 behind transformer step-down, diode rectification, capacitor filtering, operating voltage is provided, also is furnished with chargeable electrical storage device at this, after the 220V AC power has a power failure, to convert the electrical storage device power supply automatically to, and this machine be worked on, at this moment, except that television image can not show, still can finish image frame and store, report to the police, monitor repertoires such as monitoring, intercommunication conversation, remote-control unlocking.
After the people presses the floor number, the signal voltage that dial-up circuit 37 produces corresponding house number divides two-way output: the one tunnel is defeated by digital display circuit 38, show the floor room number, each floor signal divider 27 branch of decoding is defeated by on another road, open selected floor room number indoor unit, send " ding-dong " doorbell sound simultaneously three, and output 12V control voltage is given signal distributor 27 and outdoor main frame 39,12V control voltage with selected floor room number indoor unit, the monitoring image picture signal, the voice signal of communicating talkback, the control signals of unblanking etc. are connected with outdoor main frame 39 separately, outdoor host power supply 33 controlled connections simultaneously, 12V voltage is supplied with colour imagery shot 36 and signal controlling and intercommunication and power amplifier 35, output colour picture signal and voice signal are given televisor and indoor unit, show visitor's picture and can hear visitor's sound of speaking, show 5 seconds (when seeing TV programme) or got back to television image or shutdown automatically after (when televisor is in off-mode) in 20 seconds.
The course of work of televisor doorbell when off-position: when the digital button of outdoor main frame 39 by after going out floor door number; the digitally encoded signal that dial-up circuit 37 produces is defeated by each floor signal divider 27 through signal transmssion line 29 again through signal controlling and intercommunication and power amplifier 35; corresponding floor signal divider 27 is with output control voltage behind the signal decoding; control is to the indoor host computer 40 of the number of answering the door; trigger and start and 6 work of delay protection circuit; produce direct-current control voltage; control TV set power switch circuit 3 is connected; the 220V AC power is through TV set power on-off circuit 3; lead 19 is defeated by colour television set 18, televisor 18 power connections.The 12V DC voltage of Switching Power Supply 1 output is simultaneously connected through 7 controls of direct current on-off control circuit, the output of branch multichannel: the one tunnel is defeated by floor signal divider 27 connects corresponding on-off circuit, and the signal controlling in signal wire 29 is defeated by off-premises extension 39 and intercommunication and power amplifier 35, off-premises station power supply 33 is connected, colour imagery shot work, image video signal is through transmission line 28, floor signal divider 27, indoor host computer vision signal playback circuitry 22, TV signal AV/TV change-over circuit 21 is modulated into radiofrequency signal and flows to televisor 18 through radio frequency line 20, and 22 pairs of pictures of vision signal playback circuitry store automatically simultaneously.Another road 12V voltage is defeated by indoor talkback circuit 43, audio power amplifier circuit 41 voice is emitted by loudspeaker.Also one road 12V voltage flows to time cycle controller 5, and regularly oscillatory circuit 11 work produce timing pip and give time distributor circuit 12, and control TV remote admission circuit 16 sends high-strength TV remote coding infrared ray, and the control televisor is opened and conversion.Regularly oscillatory circuit 11 work, produce timing pip and give time distributor circuit 12, control TV remote admission circuit 16, and send high-strength TV remote coding infrared ray by infrared transmitter 17, control televisor 18 is opened and conversion, picture is transformed into tv programme picture after showing for 20 seconds automatically, triggering startup and delay protection circuit 6 simultaneously quits work, direct current 12V power supply is cut off and stops to each device and circuit supply, TV set power switch circuit 3 quits work, the 220V AC power of sever supply televisor 18; Floor signal divider 27 does not have the 12V direct-current control voltage, and various signals are disconnected; Off-premises extension 39 no 12V direct-current control voltages also disconnect powered operation voltage, and equipment set is got back to holding state.Televisor 18 is when program is seen in energising, when the digital button of off-premises extension 39 by after going out floor door number, televisor operation detection circuit 4 detects the televisor operating voltage, this Control of Voltage time distributor circuit 12, controlling first time pulse does not export, making TV remote admission circuit 16 televisors start infrared ray does not launch, delay circuit is not worked, making the image demonstration time was 5 seconds, automatically get back to tv programme picture after 5 seconds, other states and the televisor doorbell course of work when off-position is identical.
Operation infrared wireless remote control device 24 can teleswitch televisor, remote control communicating talkback, remote-control unlocking, dialing is reported to the police and remove and deploy troops on garrison duty.
The teleswitch televisor: press televisor " power switch " button on the telepilot 24, televisor 18 power connections click televisor " power switch " button on the telepilot 24 again, and televisor 18 power supplys disconnect.
Voice call, the intercommunication process: when the digital button of off-premises extension 39 by after going out floor door number, the digitally encoded signal that dial-up circuit 37 produces is defeated by each floor signal divider 27 through signal transmssion line 29, corresponding floor signal divider 27 is with output control voltage behind the signal decoding, control is to the indoor host computer 40 of the number of answering the door, trigger starting circuit 6 work, produce direct-current control voltage, make the input of signal distributor 27 signals, signal output switch is connected respectively, the off-premises extension voice signal is through signal transmssion line 29 simultaneously, the signal input switch of signal distributor 27 is transferred to corresponding floor door extension set talkback circuit 43, audio power amplifier circuit 41, sound through loudspeaker, monitor sound outdoors.Press " intercommunication " button on the telepilot 24, the sound that indoor host computer 40 spreads out of, is sounded from loudspeaker after signal controlling and intercommunication and power amplifier 35 amplifications to off-premises extension 39, realizes voice call, intercommunication.
Remote-control unlocking: press " unblanking " button on the telepilot 24 after about 2 seconds, wireless remote control operating means 32 receives unlock instruction, export the voltage of unblanking, signal controlling and intercommunication and the power amplifier 35 given in the off-premises extension 39 through signal distributor 27, signal transmssion line 29, output is unblanked voltage to electric control lock device 34, thereby electric control lock is opened.
The infrared acquisition radio alarming, dial the police emergency number automatically: infrared radio alarm probe 26 is placed on the place that garage, important storehouse, critical point etc. need monitoring, as long as someone rushes in, will be automatically by the wireless alerting signal of sending, after the wireless remote control operating means 32 of indoor host computer 40 receives alerting signal, trigger 30 work of wireless remote control receiver module, control warning circuit 8 produces loud and clear chimes of doom, triggers telephone automatic dialing warning circuit 9 simultaneously and outwards reports to the police by phone; Press " alarm release " button on the Digiplex 24, warning circuit 8 automatically terminates, and warning circuit 8 is deployed troops on garrison duty automatically after 2 minutes.
Digital image storage memory function: present embodiment can be stored 32 width of cloth visitor pictures, and whenever by a doorbell, storage memory one width of cloth visitor picture and time at that time, so that check at any time, 32 width of cloth pictures patrol the ring record.When the digital button of off-premises extension 39 by after going out floor door number, each change-over circuit is worked simultaneously, the video signal that the colour imagery shot 36 of off-premises extension 39 is sent here stores through the vision signal playback circuitry 22 that video signal cable 28 is transferred to indoor host computer 40.
Photoelectrical coupler 13: when televisor 18 is not started shooting, televisor operation detection circuit 4, can not detect the working current of televisor, there is not the output of control voltage, first time pulse voltage amplitude that can not control time distributor circuit 12, photoelectrical coupler 13 is subjected to first time pulse voltage triggered conducting, televisor " unlatching " infrared of control TV remote admission circuit 16, televisor 18 startup work.When televisor 18 when seeing TV, televisor operation detection circuit 4, detect the working current of televisor, output control voltage, first time pulse voltage amplitude of control time distributor circuit 12 ends first time pulse voltage amplitude, and photoelectrical coupler 13 does not have " unlatching " pulse voltage, can not work, televisor " unlatching " infrared ray is not launched.
Photoelectrical coupler 14: be subjected to second time pulse Control of Voltage, photoelectrical coupler 14 conductings, the TV channel conversion infrared of control TV remote admission circuit 16, the channel switch that makes televisor 18 is to the monitored picture channel.
Photoelectrical coupler 15: be subjected to the 3rd time pulse Control of Voltage, photoelectrical coupler 15 conductings, the TV channel conversion infrared of control TV remote admission circuit 16 makes televisor 18 channels be turned back to former programme channel.
The utility model both had been applicable to as a kind of electronics safety-protection system of novelty that the residential quarter residential building used, and was applicable to that also all kinds of families single household uses, and also can be used as the security protection facility of various public places.
Claims (9)
1, a kind of TV colour display screen security protection doorbell comprises indoor host computer control device (40), off-premises extension control device (39), signal allocation box (27), televisor (18); Indoor host computer control device (40) is connected with colour television set (18) with radio frequency line (20) by AC power cord (19); Indoor host computer control device (40) is connected with signal distributor (27) by signal control line (29), vision signal control line (28) with off-premises extension control device (39); It is characterized in that:
A, indoor host computer control device (40) comprise by time cycle controller (5), wireless remote control operating means (32), infrared radio warning device (10), video recording/reproducing and conversion equipment (23), the wireless remote control talkback unit (42) of power control (2) through power of alterating and direct current line and signal wire connection;
B, off-premises extension control device (39) comprise the colour imagery shot (36), digital display circuit (38), digital dial-up circuit (37), signal controlling and the intercommunication that are communicated with through the direct current supply line of its output by off-premises station power supply (33) and power amplifier (35), electric control lock device (34), and direct supply, picture signal and speech signal are transferred to signal distributor (27), indoor host computer control device (40) through grid line.
2, TV colour display screen security protection doorbell according to claim 1 is characterized in that: time cycle controller (5) comprises and trigger starting and delay protection circuit (6), direct current on-off control circuit (7), timing oscillator (11), television screen display switching device shifter (46); Trigger startup and delay protection circuit (6) and accept the signal of signal allocation box (27) by signal wire, and respectively to power control (2) and direct current on-off control circuit (7) output signal; Direct current on-off control circuit (7) is again respectively to power control (2) and timing oscillator (11) and television screen display switching device shifter (46) output signal.
3, TV colour display screen security protection doorbell according to claim 2, it is characterized in that: television screen display switching device shifter (46) comprises time distributor circuit (12), photoelectrical coupler (13), (14), (15), TV remote playback circuitry (16), infrared transmitter (17); Time distributor circuit (12) is accepted power control (2), direct current on-off control circuit (7) and timing oscillator (11) respectively, and connects photoelectrical coupler (13), (14), (15) respectively; TV remote playback circuitry (16) is subjected to the control of power control (2) and photoelectrical coupler (13), (14), (15) respectively, itself controls infrared transmitter (17) again; Infrared transmitter (17) sends the control infrared ray, and the picture of control televisor (18) switches.
4, TV colour display screen security protection doorbell according to claim 1 is characterized in that: power control (2) is by Switching Power Supply (1) and TV set power on-off circuit (3) and operating conditions of TV set testing circuit (4) formation; Switching Power Supply (1) is led to each device of indoor host computer control device (40); TV set power on-off circuit (3) provides the alternating current 220V power supply by power control line (19) to televisor; Televisor working sampling circuit (4) provides sampling voltage to TV remote playback circuitry (16), and then control infrared transmitter (17).
5, TV colour display screen security protection doorbell according to claim 1, it is characterized in that: video recording/reproducing and conversion equipment (23) are made up of vision signal playback circuitry (22) and AV/TV change-over circuit (21), are transferred to televisor (18) by radio frequency line (20).
6, TV colour display screen security protection doorbell according to claim 1, it is characterized in that: wireless remote control operating means (32) comprises wireless remote control receiver module (30), TV set power break-make and intercommunication conversion and alarm release module (31) and infrared wireless remote control device (24), and infrared wireless remote control device (24) is independent of outside the indoor host computer control device (40).
7, TV colour display screen security protection doorbell according to claim 1, it is characterized in that: infrared radio warning device (10) is made of wireless remote control receiver module (30), warning circuit (8), telephone automatic dialing warning circuit (9) and infrared and radio probe (26), and infrared and radio probe (26) is independent of outside the indoor host computer control device (40).
8. TV colour display screen security protection doorbell according to claim 1, it is characterized in that: wireless remote control talkback unit (42) comprises indoor talkback circuit (43), audio power amplifier circuit (41), signal controlling and intercommunication and power amplifier (35), infrared wireless remote control device (24), signal controlling and intercommunication and power amplifier (35) are installed in the off-premises extension control device (39), and infrared wireless remote control device (24) is independent of outside indoor host computer control device (40) and the off-premises extension control device (39).
9. TV colour display screen security protection doorbell according to claim 1, it is characterized in that: signal distributor (27) solves off-premises extension control device (39) coded control voice distributor circuits (48), image/video distributor circuit (49) by digital decoding circuit (47), output voice signal, picture signal and control signal are given selected indoor host computer control device (40), and selected indoor host computer control device (40) sends control voltage and controls digital zero clearing through signal distributor (27) to off-premises extension control device (39) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520052350 CN2893807Y (en) | 2005-11-04 | 2005-11-04 | TV color display safety door bell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520052350 CN2893807Y (en) | 2005-11-04 | 2005-11-04 | TV color display safety door bell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2893807Y true CN2893807Y (en) | 2007-04-25 |
Family
ID=38061963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520052350 Expired - Fee Related CN2893807Y (en) | 2005-11-04 | 2005-11-04 | TV color display safety door bell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2893807Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101242524B (en) * | 2008-03-10 | 2010-06-02 | 杭州普诺科技有限公司 | Digital wireless visual doorbell built-in control system |
| CN102055412A (en) * | 2010-12-02 | 2011-05-11 | 华为技术有限公司 | Power amplifier protective circuit, communication equipment and method |
-
2005
- 2005-11-04 CN CN 200520052350 patent/CN2893807Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101242524B (en) * | 2008-03-10 | 2010-06-02 | 杭州普诺科技有限公司 | Digital wireless visual doorbell built-in control system |
| CN102055412A (en) * | 2010-12-02 | 2011-05-11 | 华为技术有限公司 | Power amplifier protective circuit, communication equipment and method |
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