KR19980038710A - Door phone VSI system and control method thereof - Google Patents

Abstract

The present invention relates to a VSI system capable of door phone control and door phone visitor recording, wherein the conventional V system is operated in an independent set, and the door phone is provided with a photographing means by a CD camera for visitor confirmation. It was not desirable because there was no means to simply record the necessary screen.

The present invention is connected to this from the commercial power line in the house in order to improve such a conventional problem, and transmits the screen information photographed by the RF transmission through the power line to the VSI part 2 side and the VSI part 2 The door phone unit 1 for controlling the door by the control information transmitted from the side, and the door phone unit 1 is connected to the power line to receive and record the RF signal transmitted from the door phone unit 1 to record the user key input. Accordingly, it is to provide a door phone VSI system, characterized in that the V-Sial unit 2 for transmitting door opening control information to the door phone unit 1 is connected.

Description

Door phone VSI system and control method thereof

The present invention relates to a VSI system capable of recording and controlling a door phone, which is capable of recording a visitor image photographed from the door phone on the V-shial side and the V-sial side, in particular with respect to the door phone installed on the door side of the house. The door phone can also be opened through a key input unit such as a remote control transmitter.

The VSI system is a device that can receive various audio / video sources externally to record and play a video program, and a typical form thereof is shown in FIG. 1.

Here, a tuner 202 which receives a regular broadcast signal from an antenna of a VSI system and performs channel tuning, and a timer unit 203 which provides time data and the like through time display and display unit 204 in various reservation modes. And a display unit 203 for displaying and processing various data provided from the timer unit, and a video processing unit 204 for processing a signal reproduced by the deck unit or the like and a signal provided from an external video source.

The system also includes an audio unit 207 for processing an audio signal, a servo control unit for controlling a reel motor RL, a loading motor LM, a capstan motor CM, etc., for driving the deck mechanism on the system deck side. 208, a remote control receiver 209, and the like, the operation switch unit 210 on the set side key unit side, the reel motor RL, the loading motor LM, the pinch solenoid PS, and the brake solenoid BS The mechanism part 206 connected to the back etc. is included.

In addition, the input port of the microcomputer 201 has a condensation sensor, a CST lamp (CL), a CST switch (CS), an end sensor (ES), a start sensor (SS), an anti-recording step switch (RSS), and a counter memory ( CM), after loading switch (ALS), unloading switch (US), drum F / F switch (DFF), and reel pulse generator (RFG) are connected to the sensor unit 211.

In this conventional system, the VSI system is such that the microcomputer 201 controls the system according to sensor data detected through various sensors in the device as described above. Only was performing.

In addition, the VSI system is always provided in the house as a recording / reproducing device, and it is preferable if it can be used to perform a recording operation or control the door phone in connection with the operation of the door phone.

However, in the past, such a system was not utilized, and it was difficult to overcome the limitations of actively using the door phone and the VSIAL set.

It is an object of the present invention to record the visitor and the like photographed on the door phone through the power line in the house to improve the above problems, and to control the door phone on the V side, more active use of the Vial set It is to be expected.

The present invention is particularly connected to the commercial power line in the house to implement the object of the above example to transmit the screen information taken by RF transmission through the power line to the VSI side and to control the door by the control information transmitted from the V side Door phone VSI with a door phone unit and a VSI unit connected to the door phone unit by a power line to receive and record the RF signal transmitted from the door phone unit and transmit door opening control information to the door phone unit according to a user key input. The system is unique.

Another feature of the present invention is to check whether there is RF information transmitted from the door phone unit from the VSI unit, and if there is RF information, maintaining the recording state of the VSI unit in the recording state, and if the recording state of the VSI unit is impossible, A door phone performed by a door phone recording / control processing program including outputting a visitor screen to a monitor through a (EE) mode, and transmitting door open control information to the door phone when a user opens the door. It is in the control processing method of VSI.

Hereinafter, more specific features of the present invention will be understood by describing the same in detail with the accompanying drawings.

1 is a circuit block diagram of a typical Video Cassette Recorder (VCR) system.

2 is a system schematic diagram of the present invention;

3 is a circuit block diagram of the embodiment of FIG.

4 is an exemplary embodiment of a power filter and an RF pass filter in FIG.

5 is an embodiment of a door phone recording / control processing program of the present invention

* Explanation of symbols for main parts of the drawings

1: door phone part 11: door phone

12 modulator 13 door phone side RF pass filter

14 door phone data pass filter 15 data detector

16: power filter

2: Vialalbu 21: Vialal Deck

22. Microcomputer 23: VA Pass RF Filter

24 demodulator 25 carrier detector

26: key input unit 27: data modulator

28: VSI side data pass filter

100: door phone recording / control processing program

That is, Figure 2 shows a schematic view of the door phone VSI system according to the present invention.

Here, the commercial power line in the house is connected to this, and the screen information photographed by the RF transmission through the power line is transmitted to the VSI part 2 side, and the door is controlled by the control information transmitted from the VSI part 2 side. The door phone unit 1, which is connected to the door phone unit 1 and a power line, receives and records the RF signal transmitted from the door phone unit 1 and records the door opening control information in the door phone unit 1 according to a user key input. The Vialal part 2 which sends out is connected.

Reference numeral 3 here is a door drive for opening and closing the door, 4 is a monitor.

In addition, the system has shown this in more detail as shown in FIG.

Here, the door phone 11 which generates image information such as a visitor photographed from the CD camera installed in the door phone and provides a driving output to the door driver 3, and the image signal generated from the door phone 11 A modulator 12 for converting the RF signal for transmission to the power line side, a door phone side RF pass filter 13 for interfacing the signal modulated by the RF modulator 12 to the power line side, and a control transmitted from the power line side The door phone side data path filter 14 for passing information data to the door phone unit 1 side, the data detector 15 for detecting door open data from the data signal provided from the door phone side data path filter 14, and the like. It comprises a door phone unit (1).

In addition, the door phone unit 1 is provided with a power filter 16 for providing driving power to the system from the power line.

In addition, the VSI part 2 includes a VSI side RF pass filter 23 for receiving an RF signal from a power line, a demodulator 24 for demodulating a video signal from the signal received therefrom, and the demodulator ( 24. A carrier detector 25 which detects a carrier from the RF signal provided by the BD side filter 21, and a microcomputer 22, which is provided to the microcomputer 22, for recording the demodulated video signal. ), And a microcomputer 22 for driving the BC deck 21 when a carrier is detected from the BC side filter pass filter 23 through the carrier detector 25.

4 shows a more specific embodiment of the power supply filter 16 and the RF pass filter 13 installed in the door phone unit 1 and the BC2 unit.

In this case, an inductor for removing electrical noise from a power line is installed in the line. In the case of the RF pass filters 13 and 23, a capacitor and an inductor are directly connected to each other to the RF pass filters 13 and 23.

On the other hand, the door phone recording / control processing program 100 as shown in Fig. 5 is provided on the system microcomputer 22 side of the VSI part 2.

In this case, it is checked whether or not there is carrier detection in the system of the VSI part 2 (step 101). If it is detected, it is checked whether the VSI is in a power-on state (step 102).

In the above-described case, when the VSI is in the power-on state, the receiving channel is switched to the door channel side (step 103), and it is checked whether the tape is inserted into the Vialal deck 21 (step 104), and recording is performed when there is a tape insertion (step 104). 105).

Thereafter, if the door phone unit 1 checks whether there is a carrier signal including visitor shooting end information (step 106), recording is stopped (step 107).

If there is no tape inserted in step 104, this mode is executed to check the visitor through the monitor 4 (step 108). If there is no carrier detection in step 101, it is checked whether the user's door open key is input. (Step 109).

When there is a door open key input, the door open control data generated by the microcomputer 22 is transmitted to the door phone unit 1 in a series of processes.

According to the present invention having the above configuration, as shown in FIGS. 2 to 4, when the user wants to record a video signal such as a visitor photographed from the door phone unit 1 by using the door phone BC system, the power supply of the V-real unit 2 is used. Turn on and insert the tape into VSI Deck (21).

Then, when the visitor comes from the door phone unit 1 and presses the doorbell, the CD camera is driven, and the captured signal is RF-modulated through the modulator 12 and sent to the door phone side RF pass filter 13, which is a power line. It is transmitted to the BC pass side RF pass filter 23 of the BCial unit 2 through.

The carrier is detected by the carrier detector 25 from the RF image signal passing through the RF side filter pass filter 23, and when the carrier is detected, the detection information is sent to the microcomputer 22.

When the VSD deck 21 is driven to record according to the detection signal of the carrier detector 25 of the microcomputer 22, the visitor video signal demodulated by the demodulator 24 is recorded on the tape.

In addition, the user can confirm the visitor through the monitor 4 at the same time.

After the user confirms the visitor, when the user presses the door open key through the key input unit 26 of the VSI unit 2, the microcomputer 22 recognizes this and sends the door open control data to the data modulator 27. The data modulator 27 transmits a predetermined signal to the power line through the VSI-side data path filter 28 after performing signal modulation including control information.

The door open control data sent from the VSI part 2 is received through the door phone side data path filter 14 of the door phone part 1, and the control information signal passed therefrom is decoded by the data detector 15. To provide control information to the door phone (11).

The door phone 11 drives the door driving unit 3 according to the control information from the VSI part 2 to open the door.

On the other hand, the above operation is performed by the microcomputer 22 of the Vialal unit 2 together with the door phone recording / control processing program 100 as shown in FIG. It is checked whether there is carrier detection, and if there is carrier detection, it is checked whether VSI is in the power-on state (steps 101 and 102).

In the above-described case, when the VSI is in the power-on state, the receiving channel is switched to the door channel side, and it is checked whether the tape is inserted in the V Decal 21, and recording is performed when there is a tape insertion (steps 103 to 105).

After that, if the door phone unit 1 checks whether there is a carrier signal including visitor shooting end information, the recording is stopped (steps 106 and 107).

If there is no tape inserted in the above step, this mode is executed to check the visitor through the monitor 4, and if there is no carrier detection, the user checks whether there is a user's door open key input. In this case, the door open control data generated by the microcomputer 22 is sent to the door phone unit 1 (steps 108 to 110).

Therefore, the door phone unit 1 is to perform the door opening operation in accordance with the control information sent from the V2.

In the present invention, the VSI system can control the door phone through the power line and can receive recording of the visitor video signal photographed by the door phone through the power line, so that the user can check who is in the absence of the visitor. On the other hand, it is possible to ensure the convenience of opening the door through a remote control transmitter and the like.

Claims (6)

It is connected to the commercial power line in the house, which transmits the screen information captured by the RF transmission through the power line to the VSI unit 2, and controls the door by the control information transmitted from the V2 unit 2 side. The door phone unit 1 and the door phone unit 1 are connected to the power line to receive and record the RF signal transmitted from the door phone unit 1 and record the door opening control information to the door phone unit 1 according to the user's key input. Door phone BC system, characterized in that the V2 part to be transmitted is connected The door phone unit (1) according to claim 1, wherein the door phone unit (1) generates image information such as a visitor photographed from a CD camera installed in the door phone and provides a drive output to the door driver (3). A modulator 12 for converting the image signal generated from the door phone 11 into an RF signal for transmitting to the power line side, and a door phone side RF path for interfacing the signal modulated by the RF modulator 12 to the power line side. From the filter 13, the door phone side data pass filter 14 for passing control information data transmitted from the power line side to the door phone section 1, and the data signal provided from the door phone side data path filter 14; Door phone BC system comprising a data detector 15 for detecting door open data, etc. The VSI part 2 further comprises: a VSI side RF pass filter 23 for receiving an RF signal from a power line, and a demodulator 24 for demodulating a video signal from the signal received therefrom. The carrier is detected from the RF signal provided by the VCD deck 21 for recording the video signal demodulated by the demodulator 24 and the RF pass filter 23 to the microcomputer 22. The carrier detecting unit 25 and the microcomputer 22 for driving the BC deck 21 when the carrier is detected from the BC side filter pass filter 23 through the carrier detecting unit 25 are included. Doorphone VSI system 4. The power supply filter 16 and the RF pass filter 13 provided in the door phone unit 1 and the VSI unit 2 are formed of a line filter circuit including a reactor and a condenser. Door phone VSI system, characterized in that In the VSI system including the microcomputer, it checks whether there is RF information transmitted from the door phone unit to the VSI unit, and if there is RF information, keeps recording the VSI unit in the recording state, and if the recording state of the VSI unit is impossible Outputting the visitor's screen through the EE mode to the monitor, and transmitting door open control information to the door phone when the user's door open key is input, to the door phone recording / control processing program 100. Control processing method of door phone VSI, characterized in that performed The door phone recording / control processing program 100 checks whether there is carrier detection in the system of the VSI part 2 (step 101), and if there is carrier detection, is VSI in a power-on state? (Step 102), if the VSI is in the power-on state, the receiving channel is switched to the door channel side (Step 103), and it is checked whether or not a tape is loaded in the V Decal 21 (step 104). If this occurs, recording is performed (step 105). Then, the door phone unit 1 checks whether there is a carrier signal including the visitor shooting end information, and if so (9step 106), the recording is stopped (step 107). If no tape is inserted, this mode is executed to check the visitor through the monitor 4 (step 108). If there is no carrier detection in step 101, the user's door open key input is performed. (Step 109), if there is a door open key input, the door open control data generated by the microcomputer 22 is sent to the door phone unit 1 (step 110). The control method of the door phone VSI system, characterized in that.