KR102451015B1 - Wire/wireless door phone system having cctv security function - Google Patents

Abstract

The present invention relates to a wired and wireless door phone system having a CCTV security function. The purpose of the present invention is to provide a door phone system capable of implementing a CCTV security function without installing a CCTV camera. For the purpose, the present invention provides a door phone system comprising: a wired and wireless door phone (100) installed on an entrance door of an apartment house or a front door of each household to check the identity of a visitor; and a wall pad (2) connected to the wired and wireless door phone (100) by a cable (3) and provided inside each household to receive the video and audio information of the wired and wireless door phone (100), and the door phone system further comprising: a door bell (200) wirelessly connected to the wired and wireless door phone (100) and provided indoors; an internet router (4) wirelessly connected to the wired and wireless door phone (100) to connect the video and audio information to an internet network; and a smartphone (5) connected to the internet router (4) through the internet network.

Description

Wired and wireless door phone system with CCTV security function {WIRE/WIRELESS DOOR PHONE SYSTEM HAVING CCTV SECURITY FUNCTION}

The present invention relates to a wired/wireless door phone system having a CCTV security function, and more particularly, in a door phone system having a door phone and a wall pad for checking visitors of each household, the door phone and wirelessly connected to the door phone system. It relates to a wired/wireless door phone system that allows visitors to be safely controlled using an internet router, wireless doorbell, and smart phone, and at the same time, allows a simple CCTV security system to be built without installing a separate CCTV.

A door phone system is being used as a device to identify who visits apartments and general households.

1 shows such a door phone system, a door phone (1) provided at the entrance or entrance of an apartment building, and a wall pad (2) (') provided in the living room inside each household It is configured to include a 'generation device' or 'video phone') and a cable 3 for connecting the door phone 1 and the wall pad 2 by wire.

The door phone 1 includes a camera 1-1, a microphone 1-2, a door phone speaker 1-3, and a button 1-4.

The wall pad 2 is configured to include a display 2-1, a wall pad speaker 2-2, and a microphone 2-3.

With the door phone system having the above structure, the resident can check the image and voice of the visitor through the door phone 1 on the wall pad 2 in the room.

In addition, the cable 3 is usually composed of a VCC wire of DC+, a GND wire of DC-, a video signal wire, and an audio signal wire.

With the above configuration, the wall pad 2 in the room supplies DC power to the outside door phone 1 side, and the door phone 1 and the wall pad 2 can exchange images and voices with each other.

In addition, the wall pad 2 is connected to a general AC power source to receive power. In the case of a large-scale residential facility such as an apartment, the wall pad 2 is also connected to a network device for security or a common apartment management system. .

In addition, the visitor's video information is transmitted in an analog manner of CVBS (Composite Video Banking Sync).

The CVBS is a representative method of analog image transmission in which image information such as color difference and luminance is transmitted through one signal line.

However, in the conventional door phone system described above, when a visitor presses a button 1-4 provided on the door phone 1, it detects it and activates the camera 1-1 and the microphone 1-2, and provides video and audio It only transmits information to the wall pad 2, and does not have a video storage and recording function like CCTV.

Therefore, it is pointed out that it is difficult to actively deal with violent crimes and the like.

To solve the above problems, consider installing CCTV in each household.

However, in order to construct a CCTV system, an image acquisition device such as a surveillance camera and an image storage device such as a DVR (Digital Video Recorder) are required, and thus, there is a disadvantage in that the cost is high.

In addition, when CCTV is additionally installed in an existing apartment, there is a disadvantage in that the installation work becomes very complicated because it is necessary to install the CCTV at the entrance and exit and connect each device by wire.

Korean Patent Registration No. 10-1761594 (2017. 07. 27. Announcement) Korean Patent Publication No. 10-2017-0009532 (published on January 25, 2017) Korean Patent Registration No. 10-1169422 (2012. 07. 30. Announcement)

The present invention is to solve the problems of the prior art, and an object of the present invention is to provide a door phone system that can implement a CCTV security function without installing a separate CCTV.

Another object of the present invention is to utilize a wired door phone system already built in an apartment complex to easily and conveniently build a door phone system having a CCTV security function.

Another object of the present invention is to check the identity of the visitor from the outside of each household through Wi-Fi wireless communication and a smart phone App so that access can be safely controlled.

Another object of the present invention is to recognize the approach of an trespasser, notify a resident in a remote place, and store the corresponding image.

In order to achieve the above object, the present invention provides a wired/wireless door phone installed at the entrance door of an apartment or the front door of each household in order to confirm the identity of a visitor, and the wired/wireless door phone connected by a cable to the wired/wireless door phone. In the door phone system comprising a wall pad provided in the room of each household to receive video and audio information, a doorbell provided in the room connected to the wired/wireless door phone wirelessly, and the wired/wireless door phone wirelessly It is characterized in that it further comprises an Internet router for connecting the video and audio information to the Internet network, and a smart phone wirelessly connected to the Internet router.

In addition, the wired/wireless door phone transmits the visitor's video and audio information over a wire through a cable, and at the same time transmits the visitor's video and audio data to a remote user's smart phone through an internet router connected through Wi-Fi wireless communication. characterized in that

In addition, the wired/wireless door phone is characterized in that it includes a door phone MCU that manages an operation scenario of the entire door phone hardware system, and a memory for processing the operation of the door phone MCU or storing information.

In addition, the wired/wireless door phone is characterized in that it includes a front-facing camera that looks at the front direction so as to identify the visitor, and a lower-view camera that is provided at the bottom to check the delivery and mail.

In addition, the lower gazing camera is provided to be rotated at a certain angle, and a stopper for maintaining the state after determining the position by rotating the camera is provided at the rear of the lower gazing camera.

In addition, the wired and wireless door phone includes a solenoid locker for preventing the door phone from being separated and stolen by interlocking with a bracket for fixing the door phone to the wall, and a reciprocating shaft that reciprocates according to an electrical signal inside the solenoid locker; It characterized in that it further comprises a circular hook assembled with the reciprocating shaft.

In addition, the wired/wireless door phone is characterized in that it further includes a transmission/reception module for transmitting and receiving data in a Wi-Fi wireless standard, and a door phone Wi-Fi antenna.

In addition, the wired/wireless door phone includes a motion proximity sensor that recognizes when a visitor approaches a door phone and reaches a predetermined distance and delivers information to the door phone MCU, and when the brightness around the door phone is lower than a set value, it It further includes an illuminance sensor that transmits to the door phone MCU to turn on the infrared LED, an infrared LED that emits infrared to identify surrounding objects at night, and an indicator LED that indicates the recording and sensor recognition status of the door phone. characterized in that

In addition, the wired/wireless door phone includes a door phone SD memory that records information acquired by a camera and a microphone together with time information when a visitor approaches or a visit event occurs, and the power input to the door phone is used as an appropriate power source for all ICs on the hardware system. It is characterized in that it further comprises a power management IC for distribution.

In addition, the wired/wireless door phone is characterized in that it further includes an emergency battery for continuously performing a CCTV function by supplying emergency power to the inside of the door phone when external power is cut off due to a power outage.

In addition, the wired/wireless door phone includes a DC-DC converter for changing the high voltage input from the wall pad to a voltage suitable for the internal IC and maintaining it, and a door phone amplifier IC for large and clear amplification of the voice signal of the door phone. It is characterized in that it further comprises.

In addition, the wired/wireless door phone further comprises an RF transmitter for transmitting a wireless signal through amplitude variation modulation (ASK)/on-off modulation (OOK), and a door phone RF antenna for transmitting a corresponding frequency standard. .

And the wireless doorbell, characterized in that it comprises a doorbell MCU that manages the operation scenario of the entire doorbell hardware system, and an RF receiver that receives information transmitted from the door phone and the RF transmitter and transmits it to the doorbell MCU. .

In addition, the wireless doorbell is characterized in that it includes a doorbell antenna for receiving the corresponding frequency signal, and a Wi-Fi repeater module that receives the signal of the transmission/reception module of the door phone and repeatedly transmits the signal to the Internet router.

In addition, the wireless doorbell includes a doorbell SD memory that backs up and stores the video information of the wired/wireless door phone received through the Wi-Fi repeater module, and a doorbell amplifier IC that loudly and clearly amplifies the sound output from the doorbell speaker. It is characterized in that it includes.

In addition, the wireless doorbell is provided at the rear so that when a visitor notifies a visit by pressing a button on the door phone, a doorbell speaker for outputting a specific sound from the doorbell and a power supply can be supplied by connecting to a household 220V AC outlet A power outlet plug, a SMPS to convert 220V AC power to DC, a DC-DC converter to change and maintain high-voltage DC power to a power suitable for each IC in the system, It characterized in that it includes a doorbell button to change the setting of the.

In addition, the doorbell button may include a pairing button for pairing the wired/wireless door phone with the wireless doorbell.

In addition, the wired/wireless door phone and the Internet router are wirelessly connected, the Internet router and the wireless doorbell are wirelessly connected, and the Internet router and the smart phone are connected through an Internet network.

In addition, the wired/wireless door phone and the wireless doorbell are primarily wirelessly connected, the wireless doorbell and the Internet router are secondarily wirelessly connected, and the Internet router and the smart phone are connected through an Internet network.

In addition, the wired/wireless door phone includes a window composed of a transparent or translucent area, a pictogram indicating the CCTV recording status on the window, and a character display unit for displaying text indicating that a CCTV security function is performed on the window. characterized.

According to the present invention, there is an effect that a CCTV security function can be implemented without installing a separate CCTV.

In addition, by using the wired door phone system already built in apartment complexes, it is possible to build a door phone system with CCTV security function easily and conveniently.

Thereby, compared to the case of installing CCTV, there is an effect of reducing the cost of constructing a security system.

In addition, through Wi-Fi wireless communication and smart phone app, it has the effect of safely controlling access by verifying the identity of visitors from outside each household.

In addition, a resident in a remote location can recognize the access of an unauthorized intruder, and by storing the video, there is an effect that a safe security system can be established without installing a separate CCTV.

In addition, by having an emergency battery in the door phone, there is an effect of allowing the security system to operate normally even when external power is not supplied.

In addition, by having an illuminance sensor and an infrared LED in the door phone, there is an effect that a clear image can be obtained even at night.

In addition, by providing a solenoid locker in the door phone, there is an effect of preventing theft of the door phone.

In addition, by embedding an SD memory in the doorbell as well as the door phone, there is an effect of improving security by backing up and storing video and audio information.

1 is a view showing a connection method of a door phone and a wall pad according to the prior art.
2 is a schematic diagram showing the configuration of a wired/wireless door system according to the present invention.
3 is a block diagram showing hardware of a wired/wireless door phone according to the present invention.
4 is a view showing a wired/wireless door phone according to the present invention.
5 is a perspective view of a wired/wireless door phone according to the present invention.
6 is a cross-sectional view taken along line AA of FIG.
Fig. 7 is a cross-sectional view taken along line BB of Fig. 4;
8 is a hardware block diagram of a wireless doorbell according to the present invention.
9 is a view showing a wireless doorbell according to the present invention.
10 is a view showing a state in which the door phone system of the present invention is wirelessly connected by the Wi-Fi infrastructure method.
11 is a view showing a state in which the door phone system of the present invention is wirelessly connected through a Wi-Fi repeater method.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

A wired/wireless door phone system having a CCTV security function according to the present invention, as shown in FIG. 2, includes a wired/wireless door phone (100) provided at an entrance door or front door of an apartment, and the wired/wireless door phone (100). ) and a cable (3) connected to a wall pad (Wall Pad) 200 provided indoors, a wireless doorbell 200 and an Internet router 4 connected to the wired/wireless door phone 100 wirelessly, It is configured to include a smart phone 5 connected to the Internet router 4 and wirelessly.

The wired/wireless door phone 100 is connected to the wall pad 2 in each household by wire to transmit the corresponding video and audio information to the wall pad 2, and at the same time is wirelessly connected to the Internet router 4 to provide an external The corresponding video and audio information is also transmitted digitally to the user's smart phone 5 .

In addition, the door phone 100 is connected to the wall pad 20 by a cable 3 to receive power, and transmits the visitor's image and audio information to the wall pad 2 through a camera and a microphone in a wired manner. do.

In addition, the door phone 100 stores digital image information such as visitor history and special matters, and the wall pad 200 receives image and audio information of the door phone 100 within the household.

The Internet router 4 serves to connect the video and audio information of the door phone 100 to the Internet network.

In addition, the doorbell 200 may be wirelessly connected to the door phone 100 so that, in the case of a household without the wall pad 2 , only a simple notification sound function may be performed.

In addition, the smart phone 5 makes it possible to remotely check the visitor's visit and special matters from the outside of the household by means of an App.

Hereinafter, the configuration of the wired/wireless door phone 100 according to the present invention will be described with reference to FIGS. 3 to 7 .

The wired/wireless door phone 100 (hereinafter simply referred to as 'door phone') of the present invention is, as shown in FIG. 3, a door phone MCU 101 and a microcontroller unit that manages the operation scenario of the entire door phone hardware system. It is configured to include an IC (Micro Control Unit Integrated Curcuit) and a memory 102 for efficiently processing the operation of the door phone MCU 101 or for storing information.

In addition, as shown in FIG. 6 , the door phone 100 includes a bracket 124 for fixing the door phone to the wall, and a solenoid for preventing the door phone from being detached and stolen by interlocking with the bracket 102 . A locker (Solenoid Locker) 103, a reciprocating shaft 103-1 that reciprocates according to an electric signal inside the solenoid locker 103, and a circular shape assembled with the reciprocating shaft 103-1 It is configured to include a hook (Hook) (124-1).

With the above structure, when the reciprocating shaft 103-1 of the solenoid locker 103 is advanced through the App of the smart phone 5, the reciprocating shaft 103-1 is attached to the bracket 124. As it is engaged with the formed circular hook 124-1, the door phone 100 and the bracket 124 are in a locked state.

Conversely, if the reciprocating shaft 103 - 1 of the solenoid locker 103 is moved backward from the circular hook 124 - 1 of the bracket 124 , the door phone 100 can be removed from the bracket 124 .

In addition, the door phone 100 includes a transmission/reception module 104 for transmitting and receiving data in a Wi-Fi wireless standard, and a door phone Wi-Fi antenna 104-1.

In addition, the door phone 100 includes a mechanical or electronic door phone button 105 for notifying the visitor of his/her visit, and when the visitor approaches the door phone and reaches a predetermined distance, recognizes it and recognizes the door phone MCU 101 a motion proximity sensor 106 that communicates information to

In addition, the door phone 100 includes a door phone SD memory 107 that records information acquired by a camera and a microphone together with time information when a visitor approaches or a visit event occurs, and the power input to the door phone is supplied to all hardware systems. It includes a power management IC (Power Management IC) 108 for distributing an appropriate power to the IC.

In addition, the door phone 100 includes a DC-DC converter 110 that changes and maintains a high voltage input from the wall pad 2 to a voltage suitable for the internal IC, and the voice of an internal user using the wall pad 2 . It includes a door phone speaker 111 for outputting information through the door phone 100 and a door phone microphone 112 for receiving voice information of a visitor using the door phone and transmitting it to the wall pad 2 .

In addition, the door phone 100 includes electronic switches 113 and 114 for activating the microphone and speaker provided in the door phone in a necessary situation, and a door phone amplifier ( Amp) includes a wire socket (Wire Socket) 117 for connecting the IC (115, 116), and the cable (3) connected to the wall pad (2).

In addition, the door phone 100 recognizes the brightness around the door phone, and when the brightness is lower than the set value, the illuminance sensor 118 transmits it to the door phone MCU 101 to turn on the infrared LED 119. And, it includes an infrared LED 119 that emits infrared rays to identify surrounding objects in a dark environment such as at night, and an indicator LED 120 that indicates the recording or sensor recognition state of the door phone.

In addition, the door phone 100 includes an RF transmitter (Radio Frequency Transmitter) 123 that transmits a wireless signal through Amplitude Shift Keying (ASK)/On-Off Keying (OOK) and, It includes a door phone RF antenna 123-1 for transmitting a corresponding frequency standard.

In addition, the door phone 100 includes a window 125 composed of a transparent or semi-transparent area, a pictogram 126 indicating a CCTV recording state on the window 125, and a window 125 on the window 125 . It includes a character display unit 127 for displaying a character that performs a CCTV security function.

The text display unit 127 may display a phrase such as “in home black box shooting”.

In addition, as shown in FIG. 4 , the camera provided in the door phone 100 of the present invention is composed of a front-facing camera 122 and a bottom-looking camera 121 that is rotatable and can look at the bottom direction. can be

Here, the camera preferably uses a lens having an angle of view of 130 to 180 degrees.

The front-facing camera 122 is mainly used to confirm the identity of the visitor or to monitor the movement of the front, and the bottom-gazing camera 121 may be used for the purpose of checking the status of parcel delivery or mail. If necessary, the lower looking camera 121 may be omitted.

In addition, when a visitor approaches and a specific danger occurs, the image and audio data acquired through the front-facing camera 122 , the bottom-looking camera 122 and the door phone microphone 112 are primarily of the door phone 100 . It is stored in SD memory 107.

On the other hand, since the door phone 100 installed outside may be damaged by an external force and cause a problem in the storage contents, it is preferable to backup and store the same data in the SD memory 204 of the doorbell 200 installed in each household. do.

In addition, image and audio data may be stored only in the SD memory 204 of the doorbell 200 through an App setting of the smart phone 5 .

In addition, when the door phone 100 is installed around the front door, as shown in FIG. 5 , the high-strength bracket 124 is first fixed with a fastening member such as a screw, and a hook and a solenoid provided in the bracket 124 . The door phone 100 is fixed to the wall using the locker 103 .

And the bottom-looking camera 121 according to the present invention, as shown in FIG. 7, is provided so as to be rotated in a desired direction by the user, and has an anti-rotation stopper (Stopper) ( 121-1) is provided. The stopper may be configured as a screw.

In addition, on the front side of the door phone 100, the front gaze camera 122, the infrared LED 119, the illuminance sensor 118, etc. are protected, and a pictogram 126 indicating the CCTV recording state and a character display unit displaying the CCTV function A window 125 on which 127 is printed is provided.

The pictogram 126 is preferably printed in a translucent color on the window 125 so that the color and lighting of the indicator LED 120 located at the bottom is transmitted.

That is, through the indicator LED 120 and the semi-transparent color pictogram 126, it is preferable to display the image storage and recording state according to the visitor's approach or motion detection.

On the other hand, when a power outage accident or the like occurs, the door phone 100 cannot receive power from the wall pad 2, so that it is impossible to take an image.

In order to solve this problem, an emergency battery 109 is provided inside the door phone.

With the emergency battery 109 , the system can be operated for a certain period of time even during a power failure to acquire images and sounds generated in an emergency situation and store them in the door phone SD memory 107 .

The emergency battery 109 is normally charged through the power management IC 108 .

And the door phone system according to the present invention further includes a wireless doorbell (200).

The wireless doorbell 200 (hereinafter simply referred to as a 'doorbell') includes a doorbell MCU 201 that manages an operation scenario of the entire doorbell hardware system, as shown in FIGS. 8 and 9, and a door It is configured to include an RF receiver 202 that receives information transmitted from the phone 100 and the RF transmitter 123 and delivers it to the doorbell MCU 201 .

Also, the doorbell 200 may include a doorbell antenna 202-1 for receiving a corresponding frequency signal and a Wi-Fi repeater module 203 .

The Wi-Fi repeater module 203 receives a signal from the transmission/reception module 104 of the door phone and repeatedly transmits the signal to the Internet router 4 as it is.

In addition, the doorbell 200 includes a doorbell SD memory 204 that backs up and stores the image information of the door phone 100 received through the Wi-Fi repeater module 203 and a doorbell speaker 206 . and a doorbell amplifier (Amp) IC 205 that amplifies the output sound louder and clearer.

In addition, the doorbell 200 includes a doorbell speaker 206 for outputting a specific sound from the doorbell 200 when a visitor notifies a visit by pressing the button 105 of the door phone 100, and 220V AC for home use. An outlet plug 207 for connecting to an outlet to receive power, a Switching Mode Power Supply (SMPS) 208 for converting 220V AC power to DC, and a high-voltage DC power supply suitable for each IC in the system. It includes a DC-DC converter 209 for changing and maintaining, and various doorbell buttons 210 provided outside the doorbell 200 for the user to change the setting of the doorbell.

The doorbell button 210 includes a sound change button 210-1 for changing the melody sound applied to the doorbell 200, and a sound adjustment button for adjusting the volume of the sound output by the speaker 206 ( 210-3 and 210-4) and a pairing button 210-2 may be included.

In order to communicate with the door phone 100 and the doorbell 200 using OOK/ASK wireless communication, the pairing button 210-2 is pressed for 2-3 seconds, and then the door phone 100 Press the button 105 of Then, the doorbell 200 and the door phone 100 are paired with each other.

By the above method, the doorbell 200 can recognize a signal only for the door phone 100 that is paired with each other, and it is possible to prevent the doorbell 200 from malfunctioning due to another device that transmits a similar signal. can

In addition, as shown in FIG. 9 , the doorbell 200 has an outlet plug 207 on one side so that the doorbell 200 can be easily installed in an AC outlet.

The doorbell 200 converts the AC high voltage input to the outlet plug 207 into an appropriate DC voltage by the SMPS 208 , and supplies various DC voltages to the internal IC through the DC-DC converter 209 . .

Also, the Wi-Fi repeater module 203 of the doorbell 200 is wirelessly connected to the Internet router 4 to exchange information with the door phone 100 .

In addition, the wire connecting the door phone 100 and the wall pad 2 may include a DC+ VCC wire, a DC- GND wire, a video image signal wire, and an audio signal wire. The binding order and type of the wires may be changed as needed.

With the above structure, when power is supplied to the door phone 100, the door phone MCU 101, the camera, and the peripheral IC are booted, and the door phone 100 is the Internet router 4 or Wi-Fi repeater function. It is connected to the doorbell 200 through Wi-Fi wireless communication.

Here, when the Wi-Fi wireless sensitivity is good because the distance between the door phone 100 and the Internet router 4 is close, as shown in FIG. 10 , the door phone 100, the doorbell 200, and the Internet router 4 ) to be connected in a Wi-Fi infrastructure method.

In addition, when the Wi-Fi wireless sensitivity is weak because the distance between the door phone 100 and the Internet router 4 is long, as shown in FIG. 11 , the door phone 100 and the doorbell 200 are primarily wirelessly connected. and the doorbell 200 and the Internet router 4 are wirelessly connected secondarily.

In this case, the doorbell 200 serves as a Wi-Fi repeater or amplifier to increase the communication distance between the door phone 100 and the Internet router 4 .

When the door phone 100, the doorbell 200, the Internet router 4, and the wall pad 2 are wired and wirelessly connected as described above, the construction of a wired/wireless door phone system having a CCTV security function is completed.

Hereinafter, the operation process of the wired/wireless door phone system according to the present invention will be described.

When a visitor approaches the door phone 100 provided at the entrance or front door of the apartment, the motion proximity sensor 106 and the cameras 121 and 122 recognize it and store the image in the door phone SD memory 107 .

At the same time, the user's smart phone 5 notifies that the corresponding event has occurred.

Then, when the visitor presses the electronic button 105 of the door phone 100, the images acquired from the cameras 121 and 122 and the audio information acquired from the microphone 112 are transmitted to the wallpad 2 connected by wire. do.

Then, the resident can check the identity of the visitor through the display 2-1 through the alarm of the wall pad 2 .

If the resident is absent, the video and audio are transmitted to the resident through the smart phone 5 and confirmation is requested.

In the wall pad 2 or the app of the smart phone 5, the resident's voice is acquired through the microphone 2-3, and the resident's voice is transmitted to the visitor through the speaker 111 of the door phone 100. is transmitted

Meanwhile, if there is no video and audio receiving device such as the wall pad 2 , the resident may recognize that the visitor presses the door phone button 105 through the wireless doorbell 200 .

That is, when the visitor presses the electronic button 105 of the door phone, the doorbell 200 outputs a specific melody through the doorbell speaker 206 .

In addition, when a Wi-Fi wireless communication device such as the Internet router 4 is not provided, the door phone 100 and the doorbell 200 are a wireless communication method of amplitude variation modulation (ASK)/on-off modulation (OOK) method. can be connected to

Amplitude variation modulation (ASK)/on-off modulation (OOK) type wireless communication is a method of transmitting digital information in binary notation by varying the amplitude of a wireless signal, and the door phone 100 transmits a wireless signal It is preferable to apply the RF transmitter (Transmitter) 123, and to apply the RF receiver (Receiver) 202 for receiving a radio signal in the doorbell 200.

In general, amplitude variation modulation/on/off modulation type wireless communication uses a frequency of 400Mhz or 300Mhz, and a separate door phone RF antenna 123-1 or doorbell RF to transmit/receive a specific frequency standard. An antenna 202-1 is applied.

As described above, when the door phone 100 and the doorbell 200 are wirelessly connected through amplitude variation modulation/on/off modulation, when the visitor presses the electronic button 105 of the door phone, the corresponding event is reported to the door phone MCU 101. recognizes it, and transmits it through the RF transmitter 123 and the door phone RF antenna 123-1.

Then, the RF receiver 202 and the doorbell RF antenna 202-1 of the doorbell 200 receive the signal and transmit the signal to the doorbell MCU 201, and the doorbell MCU 201 transmits the signal to the doorbell amplifier 205. ) to output the amplified melody to the doorbell speaker 206 .

In a dark situation such as at night, the illuminance sensor 118 transmits the ambient illuminance value to the door phone MCU 101 to turn on the infrared LED 119, and when the light is bright such as during the day, the illuminance sensor 118 turns on the infrared LED 119 OFF so that the camera (121, 122) can clearly photograph the visit event and special matters around the door phone (100).

The present invention relates to a door phone system in which a door phone 100 and a wall pad 2 are connected by a cable 3, an Internet router 4 wirelessly connected to the door phone 100, and a wireless doorbell ( 200), and a smart phone 5 is further provided.

Also, the wireless doorbell 200 and the Internet router 4 are connected through wireless communication, and the Internet router 4 and the smart phone 5 are connected through the Internet network.

In addition, in the present invention, since the door phone 100 is provided with a door phone SD memory 107 for storing the visitor's image and voice, it is possible to perform the CCTV function without installing a separate CCTV.

This can reduce the cost of installing expensive CCTV.

In addition, since the doorbell SD memory 204 is provided in the doorbell 200, it is possible to backup and store the visitor's image and voice.

In addition, by using the app of the smart phone 5 to check the identity of the visitor even from a remote location, it is possible to safely control access.

In the above, preferred embodiments of the present invention have been exemplarily described, and the scope of the present invention is not limited to the specific embodiments described above. Those of ordinary skill in the art to which the present invention pertains will understand that various modifications and changes are possible without departing from the scope of the technical spirit of the present invention.

1: Door Phone 1-1: Camera
1-2: Microphone 1-3: Door phone speaker
1-4: Button 2: Wall Pad
2-1: Display 2-2: Wall pad speaker
2-3: Microphone 3: Cable
4: Internet router 5: Smart Phone
100: wired and wireless door phone
101: Door phone MCU (Micro Control Unit)
102: Memory
103: Solenoid Locker
103-1: reciprocating shaft (Shaft) 104: transmit/receive module (Module)
104-1: Door phone Wi-Fi antenna (Antenna)
105: door phone button 106: motion proximity sensor (Sensor)
107: door phone SD memory 108: power management IC
109: emergency battery 110: DC-DC converter (Converter)
111: door phone speaker 112: door phone microphone
113, 114: electronic switch (Switch)
115, 116: Door phone amplifier IC (AMP Integrated Cuicuit)
117: wire socket (Wire Socket) 118: light sensor
119: Infrared LED (Light Emitting Diode)
120: Indicator LED 121: Bottom looking camera
121-1: Stopper 122: Front-facing camera
123: RF transmitter (Radio Frequency Transmitter)
123-1: door phone RF antenna 124: bracket
124-1: Circular Hook 125: Window
126: pictogram 127: character display unit
200: wireless doorbell (Door Bell) 201: doorbell MCU
202: RF receiver (Receiver) 202-1: doorbell RF antenna
203: Wi-Fi Repeater Module (Repeater Module)
203-1: doorbell Wi-Fi antenna 204: doorbell SD memory
205: doorbell am (AMP) IC 206: doorbell speaker
207: outlet plug (Concent Plug)
208: SMPS (Switching Mode Power Supply)
209: DC-DC converter 210: doorbell button
210-1: Sound change button 210-2: Paring Button
210-3, 210-4: Sound control buttons

Claims (20)

Wired/wireless door phone 100 installed at the entrance door of an apartment or the front door of each household in order to confirm the identity of the visitor, and the wired/wireless door phone 100 connected to the wired/wireless door phone 100 by a cable (3) In the door phone system comprising a wall pad (2) provided in the room of each household to receive the video and audio information of
A doorbell 200 that is wirelessly connected to the wired/wireless door phone 100 and provided indoors;
an internet router 4 wirelessly connected to the wired/wireless door phone 100 to connect video and audio information to the internet network;
Further comprising a smart phone (5) connected through the Internet network with the Internet router (4),
The wired/wireless door phone 100 is
A solenoid locker 103 for interlocking with the bracket 124 for fixing the door phone to the wall to prevent the door phone from being detached and stolen;
a reciprocating shaft 103-1 reciprocating according to an electrical signal inside the solenoid locker 103;
Wired and wireless door phone system with CCTV security function, characterized in that it includes a circular hook (Hook) (124-1) assembled with the reciprocating shaft (103-1). The method of claim 1,
The wired/wireless door phone 100 is
At the same time, the visitor's video and audio information is transmitted over the cable (3) and at the same time,
A wired/wireless door phone system with a CCTV security function, characterized in that it transmits the visitor's video and audio data to a remote user's smart phone (5) through the Internet sharer (4) connected by Wi-Fi wireless communication. The method of claim 1,
The wired/wireless door phone 100 is
A door phone MCU 101 that manages the operation scenario of the entire door phone hardware system, and
Wired/wireless door phone system with CCTV security function, characterized in that it includes a memory 102 for processing the operation of the door phone MCU 101 or storing information. 4. The method of claim 3,
The wired/wireless door phone 100 is
A front-facing camera 122 that looks at the front direction so as to identify the visitor;
Wired/wireless door phone system having a CCTV security function, characterized in that it further comprises a lower gaze camera 121 provided at the bottom for checking delivery and mail. 5. The method of claim 4,
The lower looking camera 121 is provided to be able to rotate at a certain angle,
Wired/wireless door phone system with CCTV security function, characterized in that a stopper 121-1 for maintaining the state after determining the position by rotating the camera is provided at the rear of the lower looking camera 121 . delete The method of claim 1,
The wired/wireless door phone 100 is
Wired and wireless door phone system having a CCTV security function, characterized in that it further comprises a transmission/reception module 104 for transmitting and receiving data in the Wi-Fi wireless standard and a door phone Wi-Fi antenna 104-1. 8. The method of claim 7,
The wired/wireless door phone 100 is
a motion proximity sensor 106 that recognizes when a visitor approaches with a door phone and reaches a predetermined distance and delivers information to the door phone MCU 101;
When the brightness around the door phone is lower than the set value, the illuminance sensor 118 transmits this to the door phone MCU 101 to turn on the infrared LED 119;
An infrared LED 119 that emits infrared light to identify surrounding objects at night, and
Wired and wireless door phone system with CCTV security function, characterized in that it further comprises an indicator LED (120) indicating the state of recording and sensor recognition of the door phone. 9. The method of claim 8,
The wired/wireless door phone 100 is
A door phone SD memory 107 that records information acquired by a camera and a microphone together with time information when a visitor approaches or a visit event occurs;
Wired and wireless door phone system with CCTV security function, characterized in that it further comprises a power management IC (Power Management IC) (108) for distributing power input to the door phone as an appropriate power to all ICs on the hardware system. 10. The method of claim 9,
The wired/wireless door phone 100 is
Wired/wireless door phone system with CCTV security function, characterized in that it further comprises an emergency battery 109 for continuously performing CCTV functions by supplying emergency power to the inside of the door phone when external power is cut off due to a power outage. 11. The method of claim 10,
The wired/wireless door phone 100 is
A DC-DC converter 110 for changing the high voltage input from the wall pad 2 to a voltage suitable for the internal IC and maintaining it;
Wired and wireless door phone system with CCTV security function, characterized in that it further comprises a door phone amplifier IC (AMP IC) (115, 116) for amplifying the voice signal of the door phone loudly and clearly. The method of claim 1,
The wired/wireless door phone 100 is
An RF transmitter (Radio Frequency Transmitter) 123 that transmits a radio signal through amplitude shift modulation (ASK) / on-off modulation (OOK);
Wired/wireless door phone system with CCTV security function, characterized in that it includes a door phone RF antenna (123-1) for transmitting a corresponding frequency standard. The method of claim 1,
The doorbell 200,
A doorbell MCU 201 that manages the operation scenario of the entire doorbell hardware system;
Wired and wireless door phone system with CCTV security function, characterized in that it includes an RF receiver (202) that receives information transmitted from the door phone (100) and the RF transmitter (123) and delivers it to the doorbell MCU (201). 14. The method of claim 13,
The doorbell 200,
a doorbell antenna 202-1 for receiving the corresponding frequency signal;
Wired/wireless door phone with CCTV security function, characterized in that it further comprises a Wi-Fi repeater module (Repeater Module) 203 that receives the signal of the transmission/reception module 104 of the door phone and repeatedly transmits it to the Internet router 4 system. 15. The method of claim 14,
The doorbell 200,
a doorbell SD memory 204 for backing up and storing image information of the wired/wireless door phone 100 received through the Wi-Fi repeater module 203;
Wired and wireless door phone system with CCTV security function, characterized in that it further comprises a doorbell amplifier IC (AMP IC) (205) for loudly and clearly amplifying the sound output from the doorbell speaker (206). The method of claim 1,
The doorbell 200,
a doorbell speaker 206 for outputting a specific sound from the doorbell 200 when the visitor notifies the visitor's visit by pressing the button 105 of the door phone 100;
An outlet plug 207 provided at the rear so that it can be connected to a household 220V AC outlet to receive power;
A SMPS (Switching Mode Power Supply) 208 for converting 220V AC power to DC, and
A DC-DC converter 209 for changing the high-voltage DC power supply to a power suitable for each IC in the system and maintaining it;
Wired and wireless door phone system having a CCTV security function, characterized in that it further comprises a doorbell button 210 provided on the outer surface to allow the user to change the setting of the doorbell. 17. The method of claim 16,
The doorbell button 210 is
Wired and wireless door phone system having a CCTV security function, characterized in that it further comprises a pairing button (210-2) for pairing the wired/wireless door phone (100) and the wireless doorbell (200). The method of claim 1,
The wired/wireless door phone 100 and the Internet router 4 are wirelessly connected, the Internet router 4 and the wireless doorbell 200 are wirelessly connected, and the Internet router 4 and the smart phone 5 are connected to each other. Wired and wireless door phone system with CCTV security function, characterized in that it is connected wirelessly. The method of claim 1,
The wired/wireless door phone 100 and the wireless doorbell 200 are primarily wirelessly connected, the wireless doorbell 200 and the Internet router 4 are secondarily wirelessly connected, and the Internet router 4 and the smart phone (5) Wired and wireless door phone system with CCTV security function, characterized in that it is connected wirelessly. The method of claim 1,
The wired/wireless door phone 100 is
A window 125 consisting of a transparent or translucent area, and
A pictogram 126 indicating the CCTV recording status on the window 125, and
Wired/wireless door phone system with CCTV security function, characterized in that it includes a text display unit 127 for displaying a text indicating that the CCTV security function is performed on the window 125.

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