JPH04234264A - Doorphone device with camera - Google Patents

Abstract

PURPOSE:To automatically switch the reception channel of a customer television receiver to the channel of a signal from a television camera at a hallway by the call operation of the hallway. CONSTITUTION:A camera 1 is operated by the call operation of the operating part 3 of a hallway part A, and outputted video signal is modulated to a high frequency signal at an RF modulation part 2, and is mixed in a co-audio line 7, and is transmitted to a receiver 9. A signal identifying the hallway where the call operation is performed is sent out by the call operation via an HPBX 10. The signal is discriminated by a discrimination part 15, and the reception channel of the receiver 9 is switched to the channel of the signal from the hallway part A by the signal sent out from a remote control signal generating part 16 based on the above discrimination, and the image of the hallway is displayed. The HPBX 10 sends out a call signal to a telephone set 11, and the telephone set 11 is connected by switching to a doorphone 4 by performing the off-hook of the telephone set 11, and speech can be performed, and the channel of the receiver 9 can be returned by performing off-hook.

Description

[Detailed description of the invention]

0001

[Industrial Field of Application] The present invention relates to a door intercom device with a camera that is installed at an entrance etc.
(hereinafter abbreviated as "receiver") etc.

0002

[Prior Art] A doorbell and a camera are installed at the entrance of a residence, and based on the call operation of the visitor, the camera takes an image of the visitor, and the image is displayed on a receiver in the house. With camera-equipped door intercom devices that allow you to make calls from your home phone while watching the video, transmitting the video signal from the camera via wire requires construction work such as signal transmission lines, and depending on the structure of the building, it may not be aesthetically pleasing. This will also lead to the above problem. As a countermeasure for this problem, for example, a video signal from a camera is modulated into a high frequency signal of an empty channel of television broadcasting, mixed with a signal line of television broadcasting, etc., and transmitted to a receiver.

However, with such a device, in order to confirm the presence of a visitor, it is necessary to perform two tasks: switch the receiving channel of the receiver to the channel of the signal from the camera, and then take the telephone device off-hook. This was troublesome and inconvenient, and improvements were needed.

0004

[Problems to be Solved by the Invention] The present invention has been developed in view of the above-mentioned problems. When a telephone in the house is off-hook in response to a call from the front door, the front door from which the call was made is determined, and based on this determination, A remote control signal (hereinafter referred to as remote control signal) that switches the reception channel of the receiver to the channel of the signal from the camera at the entrance is sent to the receiver, thereby automatically changing the screen of the receiver to the image of the entrance. To provide a door intercom device with a camera that can be switched.

[0005]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention makes a call through a telephone device in the house using a doorbell installed at the entrance, etc., and images of visitors are taken by a television camera installed at the entrance, etc. etc. is projected on a receiver in the home, and includes an operation section for performing a calling operation, and a video signal from the camera output based on the calling operation as a high-frequency signal of an empty channel such as a television broadcast. an RF modulation section that appropriately modulates the door phone;
an entrance section consisting of a first control section that controls the camera, an operation section, and an RF modulation section; a mixing section that mixes the high frequency signal from the entrance section into a signal line for television broadcasting, etc.; A home switchboard that connects and exchanges call signals, etc. between a receiver that receives high-frequency signals and a doorbell based on the operation of the operation unit, and outputs a ringing signal set according to the exchange connection source; a calling signal detection unit that detects the calling signal of the computer; a memory unit that stores entrance identification data, etc.; a discrimination unit that compares and discriminates the signal from the calling signal detection unit with data read from the memory unit; a remote control signal generating section that generates a remote control signal for switching the reception channel of the receiver to a desired channel based on the signal; the home switching device; a memory section;
The present invention provides a camera-equipped door intercom device that includes a calling signal detecting section, a discriminating section, and a second control section for controlling a remote control signal generating section.

[0006]

[Operation] With the above structure, in the camera-equipped door intercom device according to the present invention, when a calling operation is performed at the operation unit at the entrance, the HPBX outputs a signal indicating a call from the entrance. Then, this signal is compared with the data read from the memory section, and it is determined that it is a signal caused by the calling operation at the front door.
Based on this determination, a required remote control signal is generated in the remote control signal generator, and the reception channel of the receiver is switched to the channel of the high frequency signal from the entrance camera. Check for visitors on the screen of the receiver, and if you want to make a call, take the phone off-hook or press the necessary buttons to talk to the doorbell at the entrance. When the call is ended and the telephone is turned on-hook, the remote-control signal generating section sends out the previously sent remote-control signal for channel selection in response to the on-hook, thereby returning the reception channel of the receiver to the original channel.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a door intercom device with a camera according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram of a main part of one embodiment of a door intercom device with a camera according to the present invention, and FIG. 2 is a block diagram of a main part of another embodiment of a door intercom device with a camera according to the present invention.

In FIG. 1, A is the entrance, and B is the inside of the house. 1 in the entrance part A is a camera that takes images of visitors and outputs video signals. Reference numeral 2 denotes an RF modulation section that appropriately converts the video signal from the camera 1 into, for example, a signal (RF signal) of an empty channel of television broadcasting. 3 is the operation section,
Use the "Call" button, etc. to perform in-house calling operations. 4 uses the doorbell to make calls within the home. Reference numeral 5 denotes a control section that controls each section of the entrance section A. 6 in the bottom of the house is a mixing section, and RF is connected to the RF signal line 7 from a television broadcast receiving antenna, etc.
The RF signals from the modulator 2 are mixed. A distributor 8 distributes the RF signal from the mixer 6. A receiver 9 receives the RF signal from the distributor 8. 10 is an HPBX that exchanges and connects call signals etc. from the entrance A or the telephone line to the house, outputs a ringing signal once when coming from the entrance A, and then sets it to identify which entrance it is from. In the case of a call signal from other than the entrance A, the calling signal is outputted twice or more consecutively. 11
uses the telephone to make a call to doorbell 4, etc. Reference numeral 12 denotes a memory section which stores data of a calling signal set for each entrance when there is a plurality of entrances A, channel data of an RF signal modulated by the RF modulator 2, and the like. 13 is a setting section for setting and inputting data to be stored in the memory section 12; 14 is a call signal detection unit that detects a call signal from the HPBX 10. Reference numeral 15 denotes a determining section that compares the signal from the calling signal detecting section 14 with the data read out from the memory section 12 to determine whether they match. Reference numeral 16 denotes a remote control signal generating section, which generates a signal for selecting the channel modulated by the RF modulating section 2 based on the determination by the determining section 15. Reference numeral 17 denotes a hook detection unit that detects when the telephone 11 is on-hook. Reference numeral 18 denotes a control unit that controls each part of the house.

[0009] In FIG. 2, 21 in the house interior is an HPBX.
Then, if the call signal etc. from the entrance A or the telephone line etc. is exchanged and connected to the telephone 11 etc. in the house, and from the entrance A,
For example, a required dial signal such as a DTMF (multifrequency code) signal is output. 22 is a PB signal detection section, HPBX
The dial signal from 21 is detected. Other symbols are the same as those in FIG. 1, so explanations will be omitted.

Next, the operation of the camera-equipped door intercom device according to the present invention will be explained. First, in FIG. 1, a visitor at the entrance A operates the "Call" button or the like on the operation section 3 in order to call into the house. The HPBX 10 sends a calling signal to the telephone 11 via the control unit 18 of the vacant line based on the calling operation of the operating unit 3. The calling signal detection unit 14 via the control unit 18
detects this calling signal and immediately cuts off the line to the telephone 11 via the control section 18. This interruption is to prevent the telephone from ringing when a call signal for identifying the entrance is subsequently input, causing the telephone to go off-hook and making it impossible to identify the entrance. Then, the calling signal detection section 1
4, within a predetermined time from the detection of the first ringing signal, for example,
If there is only one call signal detected within 4 seconds, it is determined that the call is from the entrance A, and then the call signal detection unit 14 detects the call signal set for identifying each entrance that is sent from the HPBX 10. is detected by the discriminating unit 1 via the control unit 18.
5 and compared with the data read out from the memory section 12, and if they match, the channel data of the RF signal corresponding to the data is read out from the memory section 12. Then, based on this channel data, the remote control signal generating section 16 generates, for example, an infrared remote control signal via the control section 18, and transmits it to the receiver 9 to switch the reception channel. At this time, a receiver operation detection section (not shown) detects whether or not the receiver 9 is in operation, and if it is not in operation, first sends a remote control signal to turn on the power to the receiver 9.
After that, a channel switching signal may be sent. Thereby, the receiver 9 receives the RF signal from the camera 1 via the distributor 8 and displays it on the screen. After the remote control signal generator 16 sends a remote control signal to the receiver 9, the line to the telephone 11 that was once cut off is connected via the control section 18, and a calling signal is sent to the telephone 11. If a visitor or the like is confirmed on the screen of the receiver 9 and a call is to be made via the door phone 4, the telephone 11 is off-hook, and the call line with the door phone 4 is connected and the call can be made. Note that the data stored in the memory section 12 is stored in advance in the setting section 1.
It was written by 3.

[0011] The ringing signal detection unit 14 detects a ringing signal twice within the 4 seconds because the ringing signal from other than the entrance is repeatedly on for 1 second and off for 2 seconds. It is determined that it is coming from a place other than the entrance A, and the line to the telephone 11 is reconnected via the control unit 18. As a result, a calling signal is sent to the telephone 11, and when the telephone 11 and the like are taken off-hook, the telephone 11 is exchange-connected to the door intercom 4 via the HPBX 10, and a call can be made. When the call with the doorbell 4 is ended and the telephone 11 is turned on-hook, the hook detection section 17 detects this on-hook state, and the remote control signal generation section 16 sends out the previously transmitted channel selection signal via the control section 18, and receives the image. Return the receiving channel of machine 9 to the original channel.

Further, in FIG. 2, the HPBX 21 sends a calling signal to an empty line based on a calling operation of the operating unit 3. When the telephone 11 goes off-hook with this ringing tone, this off-hook is detected by the hook detection unit 17, and based on this detection, a required dial signal such as DTMF set for identifying each entrance is sent out via the HPBX 21. do. This dial signal is detected by the PB signal detection unit 22 via the control unit 18, and the detected signal is input to the discrimination unit 15. The data corresponding to the signal from the signal detection unit 22 is determined, and the RF signal corresponding to the data is determined.
Read the channel data of the signal from the memory section 12,
The remote control signal generator 16 generates, for example, an infrared remote control signal and sends it to the receiver 9. Check for visitors on the screen of the receiver 9, and if you want to make a call via the doorbell, take the telephone 11 off-hook and press a predetermined button, e.g.
"Press. By operating the "*" button, a dial signal such as DTMF is transmitted, detected by HPBX10, and
10 exchanges and connects the telephone 11 and the door intercom 4 based on this detection. When the phone call is ended and the telephone 11 is turned on-hook, the hook detection section 17 detects this on-hook, and the remote control signal generation section 16 sends out the previously transmitted channel selection signal via the control section 18, and the receiver 9 receives the signal. Return the channel to the original channel.

[0013] In the above, the HPBX 10 sends a signal to any available line in response to a call operation from the entrance A, but the line to be exchanged and connected is specified in advance by the signal from the entrance A. The control unit 18 and HPBX of this line
10 is always kept open, the PB signal detection unit 22 detects the dial signal sent from the HPBX 10 by the calling operation of the operation unit 3, and based on this detection, the remote control signal generation unit 16 generates the required remote control signal. may be sent to the receiver 9. In this case, the line between the HPBX 10 and the control unit 18 is temporarily closed using a signal output from the control unit 18 upon detection of the dial signal, and a ringing signal is sent again. It is also possible to make an exchange connection and make a call.

[0014]

[Effects of the Invention] As explained above, according to the door intercom device with a camera according to the present invention, the video signal from the camera installed at the entrance etc. is mixed and transmitted to the public listening signal line such as television broadcasting, and Since the receiving channel of the receiver that receives this signal is automatically switched to the channel of the signal from the entrance when a visitor at the entrance calls, etc., the reception channel of the receiver that receives this signal is automatically switched to the channel of the signal from the entrance. This method has the advantage that it provides the same functionality as when a line is installed and images are displayed on a dedicated camera monitor, and the equipment costs are low.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of essential parts of an embodiment of a camera-equipped door intercom device according to the present invention.

FIG. 2 is a block diagram of main parts of another embodiment of the camera-equipped door intercom device according to the present invention.

[Explanation of symbols]

B Entrance area B. Inside the house 1 Camera 2 RF modulation section 3 Operation section 4 Door phone 6 Mixing section 9 Receiver 10 HPBX 11　Telephone 12 Memory section 14 Calling signal detection section 15 Discrimination section 16 Remote control signal generation section 17 Hook detection part 21 HPBX 22 PB signal detection section

Claims (3)

[Claims] [Claim 1] A device that allows a call to be made via a communication device in the home using a doorbell installed at the entrance, etc., and displays an image of a visitor, etc., captured by a television camera installed at the entrance, etc., on a television receiver in the home. , an operation unit for performing a calling operation, an RF modulation unit that appropriately modulates a video signal from the television camera output based on the calling operation into a high frequency signal of an empty channel such as a television broadcast, and the door phone; an entrance section consisting of a first control section that controls a television camera, an operation section, and an RF modulation section; a mixing section that mixes a high frequency signal from the entrance section into a signal line for television broadcasting, etc.; a home switchboard that exchanges and connects call signals, etc., between a television receiver that receives high-frequency signals, and a doorbell based on the operation of the operation unit, and outputs a call signal set according to the exchange connection source; A ringing signal detection unit that detects a ringing signal from the home exchange; a memory unit that stores entrance identification data; and a discriminating unit that compares and discriminates the signal from the ringing signal detection unit with data read from the memory unit. , a remote control signal generation unit that generates a remote control signal for switching the reception channel of the television receiver to a desired channel based on the signal from the determination unit; the home exchange, a memory unit, a calling signal detection unit; 1. A door intercom device with a camera, comprising: a discriminating section; a second control section for controlling a remote control signal generating section; and a home interior. 2. The home exchange outputs a dial signal set according to the exchange connection source, and a PB signal detection section for detecting the dial signal from the home exchange is provided inside the home, and the discriminator is configured to 2. The camera-equipped door intercom device according to claim 1, wherein the signal from the PB signal detection section is compared with data read from the memory section for discrimination. 3. A hook detection unit for detecting a hook of a telephone device is provided in the home, and the home exchange outputs a dial signal set according to an exchange connection source when the hook detection unit detects off-hook. , a PB signal detection section for detecting a dial signal from a home exchange is provided in the house, and the discriminating section compares the signal from the PB signal detection section with data read from a memory section to discriminate. The door intercom device with a camera according to item 1.