JPS62175082A - Doorphone camera apparatus - Google Patents

Abstract

PURPOSE:To simplify the installation works and to reduce cost by transmitting a video signal from an outdoor unit to an in-house unit by making use of an interphone cable already installed. CONSTITUTION:The outdoor unit 6 is provided in the vicinity of an interphone slave unit 3 while the in-house unit 10 in the vicinity of an interphone master unit 4. A usual communication is executed through a two-wire interphone cable 5 connecting the said two units 3 and 4. An outdoor equipment 6 and the in- house unit 10 jointly execute the projection of a video as a doorphone camera. As a result, video system equipments can be added to an already-installed interphone system at an existing house with necessary minimum cost. Also, the installation works is simplified and can be achieved with low cost.

Description

[Detailed Description of the Invention] Technical Field> The present invention provides a doorbell equipped with an outdoor unit that images a visitor, etc. and outputs a video signal, and an indoor unit that displays an image on a monitor based on the video signal from the outdoor unit. The present invention relates to a camera device.

<Prior art> This type of conventional doorbell camera device captures images of visitors, etc. and outputs video signals. The outdoor unit that outputs the output and the indoor unit that displays the image on the monitor based on the video signal from the outdoor unit are connected by a dedicated multi-core cable that contributes to the transmission of video signals, audio signals, and power. It is structured according to the body shape.

With the doorbell camera device configured as above, the gates of the outdoor unit and the indoor unit are connected using a dedicated multi-core cable, so the dedicated multi-core cable can be installed at the place where it is installed, such as in a house. Therefore, when installing a new dedicated multi-core cable in an existing house, the dedicated multi-core cable is large in size, making installation work complicated and expensive, and the existing intercom cable must be installed. In homes where the intercom is already installed, the existing intercom becomes unnecessary, making it uneconomical.

Purpose of the present invention An object of the present invention is to provide a doorbell camera device that eliminates the above-mentioned drawbacks.

<Embodiment> An embodiment of the doorbell camera device of the present invention will be described below with reference to the drawings.

The door intercom camera device of the present invention is configured as shown in Fig. 1, in which l is an outdoor intercom, 2 is an indoor intercom, 3 is an existing intercom handset installed outdoors l, and 4 is an existing intercom slave unit installed indoors 2. The intercom base unit 5 is an existing two-wire interphone cable that connects the intercom slave unit 3 and the intercom base unit 4, and 6 is a high-frequency video signal imaged by a lens 7 installed outdoors 1. an outdoor unit 1 that modulates the signal (carrier signal), electrostatically couples it to the intercom cable 5 via the capacitor 8, and transmits it to the indoor 2 side;
0 is indoor 2 [the intercom cable 5 above where installed]
This is an indoor unit that demodulates the high-frequency signal from the outdoor unit 6 which is electrostatically coupled to the video signal via the capacitor lli, returns it to the original video signal, and displays it on the monitor television 12.

FIG. 2 is a block diagram of the configuration shown in FIG. 1, in which reference numeral 15 denotes an imaging means for taking an image of a visitor or the like in the outdoor unit 6, and 16 a video processing circuit for processing the video signal from the imaging means 15 into a predetermined video signal. , 17 is a high frequency modulation circuit that modulates the video signal from the video processing circuit 16 into a high frequency signal and superimposes it onto the intercom cable 5 via the capacitor 8; 18 is the intercom cable 5. Indoor unit lO that demodulates the high frequency signal transmitted via the capacitor Ili to the original video signal
12 is the high frequency demodulation circuit 91875.
This is a monitor television that displays images based on video signals from other sources.

In the above configuration, the outdoor unit 6 is located near the intercom slave unit 3, and the indoor unit 10 is located near the intercom base unit 4.
6.

The doorphone camera device configured as described above performs normal mutual communication using the existing intercom slave unit 3 and intercom base unit 4, and performs projection as a doorphone camera using the outdoor unit 6 and indoor unit 10. It is something.

The doorbell camera device configured as described above does not require new video cables to be installed between indoors and outdoors.
Even in an existing house with an existing intercom, a video part can be added at the minimum necessary cost, and since the existing intercom can be used as is, the existing intercom is not required when purchasing a new door intercom camera device. Is it economical and has an existing intercom cable? Since it is used in existing houses, installation work can be easily carried out and the installation work can be carried out at low cost.

Effects> Since the door intercom camera device of the present invention has the above-mentioned configuration, the installation work can be done easily and inexpensively even in an existing house, and furthermore, since it uses an existing intercom, it is economical. It is true.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram showing the configuration of an embodiment of the doorbell camera device of the present invention, and FIG. 2 is a schematic block diagram of the configuration of FIG. 1. In the drawing, 5 is an intercom cable, 6 is an outdoor unit, lO
indicates indoor @. Agent: Patent attorney Itaru Sugiyama (and 1 other person) Figure 1

Claims (1)

[Claims] 1. In a doorbell camera device comprising an outdoor unit that images a visitor, etc. and outputs a video signal, and an indoor unit that displays an image on a monitor based on the video signal from the outdoor unit, the video signal from the outdoor unit A door intercom camera device that transmits information to an indoor unit using an intercom cable installed generally.