CN2836378Y - Video talk-back door bell system and its indoor and outdoor units - Google Patents

Video talk-back door bell system and its indoor and outdoor units Download PDF

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Publication number
CN2836378Y
CN2836378Y CN 200520057169 CN200520057169U CN2836378Y CN 2836378 Y CN2836378 Y CN 2836378Y CN 200520057169 CN200520057169 CN 200520057169 CN 200520057169 U CN200520057169 U CN 200520057169U CN 2836378 Y CN2836378 Y CN 2836378Y
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circuit
coupler
video
audio
premises station
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Expired - Fee Related
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CN 200520057169
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Chinese (zh)
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朱家荣
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Individual
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Individual
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Abstract

The utility model relates to a video talk-back door bell system and an indoor unit and an outdoor unit thereof. The technical problem to be solved is to provide the utility model which has easy arrangement of wires and low cost and realizes the functions of audio, video and unlocking only by two wires between the indoor unit and the outdoor unit. The system comprises an outdoor unit, an indoor unit and system wires which are composed of two transmission lines and are connected with the outdoor unit and the indoor unit, wherein the outdoor unit comprises a talk-back circuit, a decoder, an unlocking circuit, a first audio coupler, and a camera head, a visual modulator, a first video coupler in sequential connection; the indoor unit comprises a second audio coupler, a talk-back / alarm circuit, an encoder, an SCM circuit, a control switch circuit, a line status testing circuit, and a second video coupler, a video signal demodulator and a video display unit in sequential connection. The utility model has the advantages of simple and convenient arrangement of wires, low cost and reliable performance.

Description

Video intercom door bell and button system and indoor set thereof and off-premises station
Technical field
The utility model relates to a kind of doorbell, relates in particular to a kind of video intercom door bell and button system and indoor set and off-premises station.
Background technology
The video intercom door bell and button system is made up of an off-premises station and indoor set and stube cable.If when having the visitor to come to visit, the visitor presses call button on off-premises station, visitor's image will show on the screen of indoor set.After owner sees visitor's image, just press the electric lock remote control switch on the indoor set if agree to enter, unlocking signal will be sent on the off-premises station automatically, and the controlling and driving electric lock is opened the gate automatically, if for the visitor of malice, then the alarm switch that can press on the indoor set threatens.Tear open when driving off-premises station as the people, indoor set can send continuously the chimes of doom notice automatically or remind owner's off-premises station stolen.
At present, when realizing these functions at home, the cable conductor quantity that indoor set is connected with off-premises station is more, and quantity does not wait between 4 to 8 lines, and the effect of every line is fairly simple.As realize that unlocking function then will add a common ground with the line of unblanking and just can finish, if realize that image signal transmission then will add a special-purpose ground wire with a video line, if realize audio frequency, video, unblank, tamper, warning and power supply, generally need 4 to 8 lines just can finish.In addition, off-premises station and indoor set distance are long also can to increase difficulty to cable wiring manufacture, even can't carry out, lead line number is many more simultaneously, its cost is also big more, and at present, the video intercom doorbell product great majority that domestic manufacturers produce are all adopting this system connection mode.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of and connects up easily, cost is low, only just can realize audio frequency, video and unlocking function between indoor set and the off-premises station with two lines video intercom door bell and button system and indoor set and off-premises station.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of video intercom door bell and button system is provided, and it comprises off-premises station, indoor set and is connected off-premises station and the system line of indoor set, wherein:
This system line is two transmission lines;
This off-premises station comprises talkback circuit, decoder, unlock circuit, first audio coupler and the camera that is linked in sequence, visual modulator and the first video coupler, and wherein the audio signal that talkback circuit produced is on the first audio coupler connecting system line; The audio control signal that is sent by indoor set is connected to the decoder input by system line through first audio coupler and decodes; Decoder outputs to connected unlock circuit to the electric lock control signal of identification; The first video coupler will be connected to through the vision signal of ovennodulation on the system line;
Indoor set comprises second audio coupler, intercommunication/warning circuit, encoder, single chip circuit, control switch circuit, line status testing circuit and the second video coupler, visual demodulator and the video display that are linked in sequence; Wherein second audio coupler, one end is connected to off-premises station, and the other end is connected to the output of talkback circuit and encoder; One end of video display is connected with single chip circuit; One end of intercommunication/warning circuit is connected with the output of second audio coupler and encoder, and the other end is connected with single chip circuit; One end of encoder is connected with the output of single chip circuit; Single chip circuit is connected with the control switch circuit on the one hand, is connected with the line status testing circuit on the other hand; The line status testing circuit also is connected with off-premises station.
The utility model also provides a kind of off-premises station of video intercom door bell and button system, it comprises talkback circuit, decoder, unlock circuit, first audio coupler and the camera that is linked in sequence and the first video coupler, it is characterized in that: it also comprises the visual modulator that is connected between the camera and the first video coupler, and the audio signal that this talkback circuit produced is on the first audio coupler connecting system line; Audio control signal by indoor set sends is connected to the decoder input by system line through first audio coupler and decodes; Decoder outputs to connected unlock circuit to the electric lock control signal of identification; The first video coupler will be connected on the system line through the vision signal of ovennodulation.
The utility model also provides a kind of indoor set of video intercom door bell and button system, it comprises second audio coupler, intercommunication/warning circuit, encoder, single chip circuit, control switch circuit, line status testing circuit and second video coupler and the video display that is linked in sequence, it is characterized in that: it also comprises the visual demodulator that is connected between the second video coupler and the video display, wherein second audio coupler, one end is connected to off-premises station, and the other end is connected to the output of talkback circuit and encoder; One end of video display is connected with single chip circuit; One end of intercommunication/warning circuit is connected with the output of second audio coupler and encoder, and the other end is connected with single chip circuit; One end of encoder is connected with the output of single chip circuit; Single chip circuit is connected with the control switch circuit on the one hand, is connected with the line status testing circuit on the other hand; The line status testing circuit also is connected with off-premises station.
The beneficial effects of the utility model are: because video intercom door bell and button system of the present utility model has visual modulator and demodulator, therefore vision signal, audio signal and unlocking signal can be transmitted on same system line, and do not need a special-purpose transmission lines, therefore only need adopt two lines connection off-premises stations and indoor set just can realize audio frequency, video and unlocking function, thereby make system wiring simple, convenient, cost is low, dependable performance.
Description of drawings
Fig. 1 is the structured flowchart of the utility model video intercom door bell and button system.
Embodiment
See also Fig. 1, video intercom door bell and button system of the present utility model comprises off-premises station 100, indoor set 200 and is connected the system line 300 of off-premises station 100 and indoor set 200, wherein:
System line 300 is two transmission lines;
Off-premises station 100 comprises camera 1, visual modulator 2, talkback circuit 4, decoder 5, warning circuit 6, unlock circuit 7, the first video coupler 8 and first audio coupler 9.Wherein camera 1 is CCD or CMOS camera, and it finishes the vision signal with the outputting standard non-modulated obtained of image pickup signal; The audio signal that talkback circuit 4 is produced is on first audio coupler, 9 connecting system lines 300; Decoder 5, its audio control signal to sending by indoor set 200, being connected to decoder 5 inputs by system line 300 through first audio coupler 9 decodes, and the alarm control signal or the electric lock control signal of identification outputed to connected warning circuit 6 or unlock circuit 7, to produce corresponding actions; The first video coupler 8 will be connected to through the vision signal of ovennodulation on the system line 300; One end of first audio coupler 9 is connected on talkback circuit 4 and the decoder 5, the other end is connected with system line 300, the effect of first audio coupler 9 is to be sent to indoor set 200 on the system line 300 with delivering to through first audio coupler 9 from the audio signal of talkback circuit 4 on the one hand, and the code signal that will send from indoor set 200 is sent to through system line 300 and first audio coupler 9 on the input of decoder 5 for identification on the other hand.
Indoor set 200 comprises second audio coupler 10, visual demodulator 11, video display 13, intercommunication/warning circuit 14, encoder 15, single chip circuit 16, control switch circuit 17 and line status testing circuit 18.Wherein second audio coupler, 10 1 ends are connected to off-premises station 100, the other end is connected to the output of talkback circuit 14 and encoder 15, the effect of second audio coupler 10 is that the audio signal on the one hand off-premises station 100 sent here and vision signal are filtered and selected audio signal, deliver in talkback circuit/warning circuit 14, will deliver to off-premises station 100 from the audio frequency intercommunication signal of talkback circuit/warning circuit 14 and the control signal of encoder 15 outputs on the other hand; One end of visual demodulator 11 is connected to the second modulated video coupler 19, the other end is connected to the input of video display 13, the effect of visual demodulator 11 is that modulated vision signal is carried out demodulation, vision signal after the demodulation is delivered to video display 13 and is handled, and image result is presented on the display screen of video display 13 inside; One end of video display 13 is connected with single chip circuit 16, receives the working control signal that single chip circuit 16 sends, 13 work of decision video display; One end of intercommunication/warning circuit 14 is connected with the output of second audio coupler 10 and encoder 15, the other end is connected with single chip circuit 16, the effect of intercommunication/warning circuit 14 is that audio signal that the audio signal on the one hand off-premises station 100 sent here through second audio coupler 10 and encoder 15 are sent here is carried out audio frequency and amplified, and the loudspeaker by intercommunication/warning circuit 14 inside show the sound of audio signal, be to amplify output by the audio signal in intercommunication/warning circuit on the other hand, and deliver to off-premises station 100 via second audio coupler 10, be that the alarm control signal that will be produced by single chip circuit 16 starts intercommunication/warning circuit 14 more on the one hand, the alarm sound that sends is delivered to off-premises station 100 to send chimes of doom through second audio coupler 10; One end of encoder 15 is connected with talkback circuit 14 with second audio coupler 10, the other end is connected with the output of single chip circuit 16, the effect of encoder 15 is to convert the control signal that single chip circuit 16 sends to audio signal, and deliver in the off-premises station 100 by second audio coupler 10, with decoded signal controlling electric lock; Single chip circuit 16 is connected with control switch circuit 17 on the one hand, gather and report to the police or unlocking signal, if what collect is alarm signal, then send alarm control signal and give intercommunication/warning circuit 14, if what collect is unlocking signal, then send the control signal of unblanking and give encoder 15, be connected with line status testing circuit 18 on the other hand, judge whether off-premises station 100 has call signal and disconnection signal, if call signal is then sent the display control signal and is started video display 13 work, if disconnection signal, then send alarm control signal and give intercommunication/warning circuit 14, produce chimes of doom and remind; The effect of control switch circuit 17 is that generation is reported to the police and the unlock switch level signal gives single chip circuit 16 identification processing; Line status testing circuit 18 is connected with off-premises station 100 on the one hand, be connected with single chip circuit 16 on the other hand, its effect is to convert the call signal of off-premises station 100 and disconnection signal to level signal that single chip circuit 16 can receive, handles for single chip circuit 16 identifications; The second video coupler 19 is connected with off-premises station 100 on the one hand, is connected with visual demodulator 11 on the other hand.
The course of work of video intercom door bell and button system of the present utility model is as follows: when the visitor is visiting, the visitor presses call button on off-premises station, then camera 1 starts, obtain visitor's video, and be sent to visual modulator 2 and modulate, the first video coupler 8 will be connected to through the vision signal of ovennodulation on the system line 300, and be sent to indoor set 200 by system line 300, be sent to visual demodulator 11 by the second video coupler 19, modulated vision signal is carried out demodulation, vision signal after the demodulation is delivered to video display 13 and is handled, and image result is presented on the display screen of video display 13 inside; When agreeing the visitor, indoor people enters, then the start-up control switching circuit 17, giving single chip circuit 16 identifications with the unlock switch level signal handles, when single chip circuit 16 collects unlocking signal, then send the control signal of unblanking and give encoder 15, it converts the control signal that single chip circuit 16 sends to audio signal, and delivers to decoder 5 in the off-premises station 100 by second audio coupler 10, unblanks with decoded signal controlling electric lock circuit 7; When indoor people disagrees with that the visitor enters, then the start-up control switching circuit 17, giving single chip circuit 16 identifications with the alarm level signal handles, when single chip circuit 16 collects alarm signal, then send alarm control signal and give intercommunication/warning circuit 14, and deliver to decoder 5 in the off-premises station 100 by second audio coupler 10, report to the police with decoded alarm control signal control warning circuit 6; Line status testing circuit 18 judges whether off-premises station 100 has call signal and disconnection signal in addition, if call signal, then single chip circuit 16 sends 13 work of display control signal startup video display, if disconnection signal, then single chip circuit 16 sends alarm control signal and gives intercommunication/warning circuit 14, produces chimes of doom and reminds.

Claims (6)

1, a kind of video intercom door bell and button system, it comprises off-premises station, indoor set and is connected off-premises station and the system line of indoor set, it is characterized in that:
This system line is two transmission lines;
This off-premises station comprises talkback circuit, decoder, unlock circuit, first audio coupler and the camera that is linked in sequence, visual modulator and the first video coupler, and wherein the audio signal that talkback circuit produced is on the first audio coupler connecting system line; The audio control signal that is sent by indoor set is connected to the decoder input by system line through first audio coupler and decodes; Decoder outputs to connected unlock circuit to the electric lock control signal of identification; The first video coupler will be connected to through the vision signal of ovennodulation on the system line;
Indoor set comprises second audio coupler, intercommunication/warning circuit, encoder, single chip circuit, control switch circuit, line status testing circuit and the second video coupler, visual demodulator and the video display that are linked in sequence; Wherein second audio coupler, one end is connected to off-premises station, and the other end is connected to the output of talkback circuit and encoder; One end of video display is connected with single chip circuit; One end of intercommunication/warning circuit is connected with the output of second audio coupler and encoder, and the other end is connected with single chip circuit; One end of encoder is connected with the output of single chip circuit; Single chip circuit is connected with the control switch circuit on the one hand, is connected with the line status testing circuit on the other hand; The line status testing circuit also is connected with off-premises station.
2. video intercom door bell and button system as claimed in claim 1 is characterized in that: this off-premises station also comprises warning circuit, and it is connected with this decoder, and it receives by the alarm control signal of decoder identification and makes corresponding actions.
3. video intercom door bell and button system as claimed in claim 1 is characterized in that: this camera is CCD or CMOS camera.
4. the off-premises station of a video intercom door bell and button system, it comprises talkback circuit, decoder, unlock circuit, first audio coupler and the camera that is linked in sequence and the first video coupler, it is characterized in that: it also comprises the visual modulator that is connected between the camera and the first video coupler, and the audio signal that this talkback circuit produced is on the first audio coupler connecting system line; Audio control signal by indoor set sends is connected to the decoder input by system line through first audio coupler and decodes; Decoder outputs to connected unlock circuit to the electric lock control signal of identification; The first video coupler will be connected on the system line through the vision signal of ovennodulation.
5. the off-premises station of video intercom door bell and button system as claimed in claim 4 is characterized in that: this off-premises station also comprises warning circuit, and it is connected with this decoder, and it receives by the alarm control signal of decoder identification and makes corresponding actions.
6. the indoor set of a video intercom door bell and button system, it comprises second audio coupler, intercommunication/warning circuit, encoder, single chip circuit, control switch circuit, line status testing circuit and second video coupler and the video display that is linked in sequence, it is characterized in that: it also comprises the visual demodulator that is connected between the second video coupler and the video display, wherein second audio coupler, one end is connected to off-premises station, and the other end is connected to the output of talkback circuit and encoder; One end of video display is connected with single chip circuit; One end of intercommunication/warning circuit is connected with the output of second audio coupler and encoder, and the other end is connected with single chip circuit; One end of encoder is connected with the output of single chip circuit; Single chip circuit is connected with the control switch circuit on the one hand, is connected with the line status testing circuit on the other hand; The line status testing circuit also is connected with off-premises station.
CN 200520057169 2005-04-15 2005-04-15 Video talk-back door bell system and its indoor and outdoor units Expired - Fee Related CN2836378Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520057169 CN2836378Y (en) 2005-04-15 2005-04-15 Video talk-back door bell system and its indoor and outdoor units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520057169 CN2836378Y (en) 2005-04-15 2005-04-15 Video talk-back door bell system and its indoor and outdoor units

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CN2836378Y true CN2836378Y (en) 2006-11-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102395022A (en) * 2011-06-09 2012-03-28 张伟 Visual doorbell

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102395022A (en) * 2011-06-09 2012-03-28 张伟 Visual doorbell

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20061108