CN211128003U - Two-wire indoor unit of visual intercom system and visual intercom system - Google Patents

Abstract

The utility model discloses a second-line indoor unit of a visual intercom system and a visual intercom system. The second-line indoor unit comprises a first control unit, a display unit, a video demodulation unit, a WIFI unit, and a first transceiver code modulation and demodulation unit. unit, a first audio intercom unit, a first synthesis unit and a storage unit. The WIFI unit, the video demodulation unit, and the first transceiver code modulation and demodulation unit are all connected to and controlled by the first control unit. The first synthesis unit is respectively connected with the first audio intercom unit, the video demodulation unit and the first transceiver code modulation and demodulation unit, and the first synthesis unit is also connected with the two-wire outdoor unit. The display unit is connected with the video demodulation unit and the storage unit, and the WIFI unit is connected with the first audio intercom unit and the video demodulation unit. According to the above technical solution, the second-line indoor unit can be connected to the mobile terminal through the WIFI unit, so that the resident can respond to the visitor anytime and anywhere, and the convenience is improved.

Description

The second-line indoor unit of the video intercom system and the video intercom system

technical field

The utility model relates to the security field, in particular to a second-line indoor unit of a visual intercom system and a visual intercom system.

Background technique

The video intercom system allows residents to identify the identity of the visitor through the second-line indoor unit, avoiding the need to personally go to the door of the villa or the door of the residential building to identify the identity of the visitor, which greatly ensures the personal safety of the residents and improves the convenience. applied in residential. However, when someone comes to visit, the existing video intercom system still informs the resident to go to the second-line indoor unit to operate and identify the visitor's identity through the way of ringing. Operation, unable to respond to defenders in time, causing inconvenience to residents and visitors.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes a second-line indoor unit of a visual intercom system, which can be connected to a resident's mobile terminal to realize remote operation, so that the resident can respond to a visitor in time.

The utility model also proposes a visual intercom system with the above-mentioned two-wire indoor unit.

In the first aspect, the second-line indoor unit of the video intercom system according to the embodiment of the present invention includes: a first control unit; a display unit, connected to the first control unit and controlled by the first control unit; a video demodulation unit, connected to and controlled by the first control unit, and outputting video signals to the display unit; a WIFI unit, connected to the first control unit and controlled by the first It is also connected to the video demodulation unit for connection with the mobile terminal; the first transceiver code modulation and demodulation unit is connected to the first control unit and controlled by the first control unit, and is used for Control signal modulation and demodulation; a first audio intercom unit, connected to the WIFI unit, for the collection, playback and processing of audio signals; a first synthesis unit, connected to a two-wire outdoor unit through a splitter and a repeater in turn , and are respectively connected with the first audio intercom unit, the video demodulation unit and the first transceiver code modulation and demodulation unit for integration and disassembly of the communication information with the two-line outdoor unit; the storage unit, with The display unit is connected for storing audio and video information.

The second-line indoor unit of the video intercom system according to the embodiment of the present invention has at least the following beneficial effects: the second-line indoor unit can be connected to a mobile terminal such as a mobile phone or a tablet computer through a WIFI unit, and the video information collected by the second-line outdoor unit and The audio information can be transmitted to the resident's mobile terminal, and the video intercom system can be operated through the mobile terminal, so that the resident can respond to the visitor anytime and anywhere, and improve the convenience.

According to some embodiments of the present invention, the display unit includes a display screen and a display drive control module connected to the display screen, the display screen drive control module is respectively connected with the control unit, the video demodulation unit and the The storage unit is connected, and the display screen driving control module is used for encoding and decoding audio and video information and driving the display screen to display information.

In the second aspect, the video intercom system according to the embodiment of the present invention includes: a second-line indoor unit of the video intercom system; can be connected to each other for transmitting audio, video and control information; repeaters are connected to the branch, and multiple repeaters can be connected to each other for amplifying audio, video and control signals; A two-wire outdoor unit is connected to the repeater; a power source is connected to the repeater, and provides power for the two-wire indoor unit, the brancher and the two-wire outdoor unit through the repeater; wherein, The electrical connection between the two-wire indoor unit, the brancher, the repeater and the two-wire outdoor unit is realized by two non-polar transmission cables.

The video intercom system according to the embodiment of the present utility model has at least the following beneficial effects: with the second-line indoor unit according to the embodiment of the first aspect of the present utility model, the resident can connect the second-line indoor unit through the mobile terminal to realize remote control, timely control Respond to a visitor calling the household through the second-line outdoor unit. At the same time, the system is connected by two non-polar transmission cables, which is easy to install, and the residents can install it by themselves.

According to some embodiments of the present invention, the branching device includes: a second control unit; an input unit, connected to the second control unit and controlled by the second control unit, and also connected with other said branching devices or all The repeater is connected; the channel switching unit is connected with the second control unit and controlled by the second control unit, connected with the input unit, and also connected with a plurality of the two-wire indoor units, which can be connected with other The branch is connected.

According to some embodiments of the present invention, the repeater includes: a third control unit; a two-way transceiving code amplifying unit, connected to the third control unit and controlled by the third control unit; a two-way audio amplifying unit, connected with the third control unit and controlled by the third control unit; a video amplifying unit connected with the third control unit and controlled by the third control unit; a second synthesis unit, respectively connected with the bidirectional The transceiver code amplifying unit, the two-way audio amplifying unit and the video amplifying unit are connected, and are also connected with the branch or other repeaters; the third synthesis unit, the two-way transceiver code amplifying unit, the two-way audio amplifying unit and the video amplifying unit are connected , and also connected to the two-wire outdoor unit or other repeaters.

According to some embodiments of the present invention, the two-wire outdoor unit includes: a fourth control unit; a second audio intercom unit, connected to the fourth control unit and controlled by the fourth control unit; a video modulation unit, connected with the fourth control unit and controlled by the fourth control unit; the second transceiver code modulation and demodulation unit, connected with the fourth control unit and controlled by the fourth unit; the camera, connected with the video The modulation unit is connected; the fourth synthesis unit is respectively connected with the video modulation unit, the second audio intercom unit and the second transceiver code modulation and demodulation unit, and is also connected with the repeater.

According to some embodiments of the present invention, the power supply includes a switching power supply and an isolator, and the isolator is further connected to the repeater.

Additional aspects and advantages of the invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

1 is a system block diagram of an embodiment of the present utility model;

Fig. 2 is the system block diagram of the embodiment of the visual intercom system of the present invention;

Fig. 3 is the system block diagram of the embodiment of the tap of the present utility model;

4 is a system block diagram of an embodiment of the repeater of the present invention;

FIG. 5 is a system block diagram of an embodiment of the two-wire outdoor unit of the present invention.

Reference number:

The first control unit 100, the display unit 110, the display screen 111, the display drive control module 112, the video demodulation unit 120, the WIFI unit 130, the first transceiver code modulation and demodulation unit 140, the first audio intercom unit 150, the first synthesis unit 160, storage unit 170,

The second control unit 200, the input unit 210, the channel switching unit 220,

The third control unit 300, the bidirectional transceiving code amplification unit 310, the bidirectional audio amplification unit 320, the video amplification unit 330, the second synthesis unit 340, the third synthesis unit 350,

The fourth control unit 400 , the second audio intercom unit 410 , the video modulation unit 420 , the second transceiver code modulation and demodulation unit 430 , the camera 440 , and the fourth synthesis unit 450 .

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but should not be construed as a limitation of the present invention.

In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number. If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution .

Referring to FIG. 1, in the first aspect, the second-line indoor unit of the video intercom system according to the embodiment of the present invention includes: a first control unit 100, a display unit 110, a video demodulation unit 120, a WIFI unit 130, a first transceiving code The modulation and demodulation unit 140 , the first audio intercom unit 150 , the first synthesis unit 160 and the storage unit 170 . The first control unit 100 is connected to and controls the display unit 110 , the video demodulation unit 120 , the WIFI unit 130 and the first transceiver code modulation and demodulation unit 140 respectively. The display unit 110 is also connected to the video demodulation unit 120, and can display the information that the first control unit 100 needs to display, and can also display the video information collected by the second-line outdoor unit in the video intercom system demodulated by the video demodulation unit 120. , so that the resident can judge the identity of the visitor by observing the appearance of the visitor at the second-line outdoor unit through the display unit 110 . The display unit 110 also has the function of encoding and decoding audio information and video information, and is connected to the storage unit 170. The information displayed on the display unit 110 can be encoded and stored in the storage unit 170 for preservation, and can be called out and performed after a period of time. playback. The first audio intercom unit 150 is mainly responsible for collecting the voice information of the resident at the second-line indoor unit and converting it into electrical signals and modulating it. At the same time, it can also demodulate and play the external audio information, so that the resident can communicate with the second-line indoor unit through the second-line indoor unit. The visitor at the second-line outdoor unit makes a voice call to determine the visitor's intention.

The first transceiver code modulation and demodulation unit 140 is used to modulate the information that the second-line indoor unit needs to send out into a high-frequency signal, or demodulate the high-frequency signal sent from the outside into control information. High-frequency signals can provide enough bandwidth to carry a lot of information. The first synthesis unit 160 is respectively connected with the first audio intercom unit 150, the video demodulation unit 120 and the first transceiver code modulation and demodulation unit 140, and the first synthesis unit 160 is also connected with the outdoor device through the splitter and the repeater. The connection of the two-wire outdoor unit is used to integrate the information to be sent modulated by the first transceiver code modulation and demodulation unit 140 and the first audio intercom unit 150 in the two-wire indoor unit and send it to the two-wire outdoor unit. The information sent by the outdoor unit to the second-line indoor unit is divided into audio, video and control information by function and sent to the first audio intercom unit 150 , the video demodulation unit 120 and the first transceiver code modulation and demodulation unit 140 respectively. The two-wire indoor unit with the first combining unit 160 can integrate video, audio and control information, reduce the number of signal lines used for transmission, and can use the two-wire non-polar bus protocol to transmit information. The WIFI unit 130 is used to connect the second-line indoor unit to the household network of the household, so that the second-line indoor unit can connect to the Internet, communicate with the cloud, and then communicate with the household's mobile terminal. For remote control, it can be understood that when the resident is in the house, the second-line indoor unit can directly communicate with the resident's mobile terminal by connecting to the router in the house through the WIFI unit 130 . The WIFI unit 130 is also connected to the first audio intercom unit 150 and the video demodulation unit 120, respectively. The second-line indoor unit can send the audio and video information sent by the second-line outdoor unit to the user's mobile terminal through the WIFI unit 130, and can also receive the user's mobile terminal. Use the audio information sent by the mobile terminal and send the audio information to the second-line outdoor unit. It can be understood that the mobile terminal may be a device such as a mobile phone, a tablet computer, and a notebook computer.

In some embodiments, the display unit 110 includes a display screen 111 and a display driving control module 112 connected to the display screen 111 . The display drive control module 112 is also connected to the storage unit 170, the video demodulation unit 120 and the first control unit 100 respectively. The display drive control module 112 has the function of decoding and encoding video and audio, and can drive the display screen 111 to display video information and play audio. information. It can be understood that the display screen 111 may be a display screen with solid buttons or a touch-sensitive display screen, which is convenient for the resident to operate the second-line indoor unit.

2 , the video intercom system according to the embodiment of the present invention includes the second-line indoor unit of the video intercom system according to the first aspect of the present invention. Also includes branch, repeater, 2-wire outdoor unit and power supply. Each branch unit can be connected to multiple second-line indoor units, and multiple branch units can also be cascaded to connect more second-line indoor units to the system. The branch unit is used for calling second-line outdoor units and called second-line indoor units. The information transmission between the machines realizes the information exchange between the visitors and the residents. The repeater is connected to the two-wire outdoor unit and the brancher respectively, which is used for signal amplification to expand the transmission distance of the signal and ensure the communication quality. Multiple repeaters can also be cascaded with each other. The power supply is connected to the repeater to convert the commercial power into the electrical energy that can be used by the system, and to provide electrical energy for the entire system through the repeater. Distributed power supply. In some embodiments, the power supply includes a switching power supply and an isolator connected to the switching power supply, the isolator is also connected to a repeater, and the isolator prevents signals from being absorbed and interfered by the switching power supply. The two-wire indoor unit, branch unit, repeater and two-wire outdoor unit are all electrically connected through two non-polar transmission cables. The two-wire bus protocol is adopted, which can transmit signals and provide power at the same time. The wiring is simple and easy to install. No polarity, households can install it by themselves.

Referring to FIG. 3 , in some embodiments, the splitter includes: a second control unit 200 , an input unit 210 and a channel switching unit 220 . The input unit 210 and the channel switching unit 220 are respectively connected to the second control unit 200 and controlled by the second control unit 200. The input unit 210 is connected to the channel switching unit 220, and the second control unit 200 controls the channel switching unit 220 to switch channels according to the control information , the signal transmitted by the input unit 210 is transmitted from the correct channel of the channel switching unit 220 to transmit to the correct second-line indoor unit or the second-line outdoor unit. The input unit 210 can be connected to a repeater, each channel of the channel switching unit 220 can be connected to a 2-wire indoor unit, and the input unit 210 can also be connected to a certain channel of the channel switching unit 220 of other branch units, so as to realize the connection between the branch units. cascading to expand the scale of the intercom system.

4 , in some embodiments, the repeater includes: a third control unit 300 , a second synthesis unit 340 , a third synthesis unit 350 , a two-way transceiving code amplifying unit 310 , a two-way audio amplifying unit 320 and a video amplifying unit 330 . The two-way transceiving code amplifying unit 310, the two-way audio amplifying unit 320 and the video amplifying unit 330 are all connected to the third control unit 300, and under the control of the third control unit 300, amplify the control information, audio information and video information to expand communication distance to ensure communication quality. The second synthesizing unit 340 and the third synthesizing unit 350 are similar in function to the first synthesizing unit 160, and are used to split the information entering the repeater into control information, audio information and video information according to the information function, and combine the control information, The audio information and the video information are respectively sent to the two-way transceiving code amplifying unit 310 , the two-way audio amplifying unit 320 and the video amplifying unit 330 for amplification. The second synthesizing unit 340 and the third synthesizing unit 350 can also integrate the amplified information sent by the two-way transceiving code amplifying unit 310 , the two-way audio amplifying unit 320 and the video amplifying unit 330 and send it to the next device. The second combining unit 340 can be connected to the input unit 210 of the splitter, the third combining unit 350 can be connected to the two-wire outdoor unit, and both the second combining unit 340 and the third combining unit 350 can also be connected to the second combining unit of other repeaters The unit 340 or the third combining unit 350 is connected to form a cascade between a plurality of repeaters.

5 , in some embodiments, the two-line outdoor unit includes a fourth control unit 400 , a second audio intercom unit 410 , a second transceiver code modulation and demodulation unit 430 , a video modulation unit 420 and a camera 440 . The second transceiver code modulation and demodulation unit 430 , the video modulation unit 420 and the second audio intercom unit 410 are all connected to the fourth control unit 400 and controlled by the fourth control unit 400 . The second transceiving code modulation and demodulation unit 430 and the second audio intercom unit 410 have the same functions as the first transceiving code modulation and demodulation unit 140 and the first audio intercom unit 150, and are used for modulation and control of the control information of the two-wire outdoor unit, respectively. Demodulation and audio information collection, playback and modulation and demodulation. The video modulation unit 420 is connected to the camera 440 and modulates the visual information of the visitor collected by the camera 440 . The fourth synthesis unit 450 is respectively connected with the video modulation unit 420, the second transceiver code modulation and demodulation unit 430 and the second audio intercom unit 410, and its function is basically the same as that of the first synthesis unit 160. It is transmitted to the corresponding unit to integrate the information to be sent internally and send it to the second-line indoor unit through the repeater and the splitter. The fourth synthesizing unit 450 is also connected to the third synthesizing unit 350 of the repeater. It can be understood that the second-line outdoor unit may further include a key panel for inputting call information and a display device for displaying some display information.

It can be understood that, the first control unit 100 , the second control unit 200 , the third control unit 300 and the fourth control unit 400 can all use programmable micro-control processors such as ARM and FPGA.

According to the second-line indoor unit of the video intercom system according to the embodiment of the present invention, the mobile terminal of the resident can be connected through the WIFI unit, and the video information and audio information collected by the second-line outdoor unit can be transmitted to the mobile terminal of the resident, and can be transmitted through the WIFI unit. The mobile terminal operates the video intercom system, allowing residents to respond to visitors anytime and anywhere, improving convenience.

The video intercom system according to the embodiment of the present invention includes the second-line indoor unit according to the embodiment of the present invention. The resident can connect the second-line indoor unit through the mobile terminal to realize remote control, and respond in time to the visitor who calls the resident through the second-line outdoor unit. . At the same time, the system is connected by two non-polar transmission cables, which is easy to install, and the residents can install it by themselves.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples", etc., is meant to incorporate the embodiments A particular feature, structure, material, or characteristic described by an example or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited to the above-mentioned embodiments, and within the scope of knowledge possessed by those of ordinary skill in the technical field, the present utility model can also be used without departing from the purpose of the present utility model. make various changes.

Claims (7)

1. a second-line indoor unit of a video intercom system, is characterized in that, comprising: a first control unit; a display unit, connected to the first control unit and controlled by the first control unit; a video demodulation unit, connected to the first control unit and controlled by the first control unit, and outputting a video signal to the display unit; a WIFI unit, connected to the first control unit and controlled by the first control unit, and also connected to the video demodulation unit for connecting with a mobile terminal; a first transceiver code modulation and demodulation unit, connected to the first control unit and controlled by the first control unit, for modulating and demodulating the control signal; a first audio intercom unit, connected to the WIFI unit, for collecting, playing and processing audio signals; The first synthesis unit is sequentially connected to the two-wire outdoor unit through the splitter and the repeater, and is also connected to the first audio intercom unit, the video demodulation unit and the first transceiver code modulation and demodulation unit, respectively, It is used for the integration and disassembly of communication information with the second-line outdoor unit; a storage unit, connected with the display unit, for storing audio and video information. 2. The second-line indoor unit of the video intercom system according to claim 1, wherein the display unit comprises a display screen and a display drive control module connected with the display screen, and the display screen drives the control module Connected to the control unit, the video demodulation unit and the storage unit respectively, the display screen drive control module is used for encoding and decoding audio and video information and driving the display screen to display information. 3. a visual intercom system, is characterized in that, comprises: The second-line indoor unit of the video intercom system according to claim 1 or 2; A brancher, connected with a plurality of the two-wire indoor units, and a plurality of the branchers can be connected to each other for transmitting audio, video and control information; a repeater, connected with the brancher, and a plurality of the repeaters can be connected to each other for amplifying audio, video and control signals; A two-wire outdoor unit is connected to the repeater; a power supply, connected to the repeater, and providing power for the second-line indoor unit, the brancher and the second-line outdoor unit through the repeater; Wherein, the electrical connection between the two-wire indoor unit, the branch unit, the repeater and the two-wire outdoor unit is realized by two non-polar transmission cables. 4. The video intercom system according to claim 3, wherein the brancher comprises: a second control unit; an input unit, connected to the second control unit and controlled by the second control unit, and also connected to the other branchers or repeaters; The channel switching unit is connected to and controlled by the second control unit, is connected to the input unit, is also connected to a plurality of the two-line indoor units, and can be connected to other branchers. 5. The video intercom system according to claim 3, wherein the repeater comprises: the third control unit; a bidirectional transceiving code amplifying unit, connected to the third control unit and controlled by the third control unit; A two-way audio amplification unit, connected with the third control unit and controlled by the third control unit; a video amplifying unit, connected to the third control unit and controlled by the third control unit; The second synthesis unit is respectively connected with the two-way transceiving code amplifying unit, the two-way audio amplifying unit and the video amplifying unit, and is also connected with the brancher or other repeaters; The third synthesis unit is connected to the two-way transceiving code amplifying unit, the two-way audio amplifying unit and the video amplifying unit, and is also connected to the two-wire outdoor unit or other repeaters. 6. The video intercom system according to claim 3, wherein the second-line outdoor unit comprises: the fourth control unit; a second audio intercom unit, connected to the fourth control unit and controlled by the fourth control unit; a video modulation unit, connected with the fourth control unit and controlled by the fourth control unit; a second transceiver code modulation and demodulation unit, connected to the fourth control unit and controlled by the fourth control unit; a camera, connected to the video modulation unit; The fourth synthesis unit is respectively connected with the video modulation unit, the second audio intercom unit and the second transceiver code modulation and demodulation unit, and is also connected with the repeater. 7 . The video intercom system according to claim 3 , wherein the power supply comprises a switching power supply and an isolator, and the isolator is further connected to the repeater. 8 .

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