Multi-channel voice and video distrbution apparatus for 4 channel input and 8 channel output which is connected to 4 lobby phones

Abstract

A multi-channel voice and video distribution device with 4 channels of input and 8 channels of output connected to 4 lobby phones is disclosed. The multi-channel voice and video distribution device with 4 channels of input and 8 channels of output connected to 4 lobby phones includes a multi-channel voice and video distribution device of the RS485 bus type that is connected to 4 lobby phones and receives 4 channels of input through each of the 4 channels of RJ45 connectors of each lobby phone, distributes voice and video, and is connected to each of the 8 channels of output for voice / video transmission through each of the 8 channels of RJ45 connectors to the home network video phones of each household. From the multi-channel voice and video distribution device of the RS485 bus type, 8 lines of CH2-A and CH-2B are branched out via the RS485 bus method and connected to the security office telephone through a home network hub, and it is possible to install 8 household RS485 type video phones / interphones.

Description

Technology Field

[0001] The present invention relates to a multi-channel voice and video distribution device with 4-channel input and 8-channel output using an RS485 bus method connected to 4 lobby phones. Background Technology

[0002] Each household in apartments and multi-unit housing is equipped with a wall-mounted wall-pad. The wall-pad provides video calls with lighting fixtures, heating devices, ventilation devices, doors, power equipment switches installed within the household, as well as with the lobby phone (video call device) equipped on the entrance door of each household in the home network and the in-house video phone.

[0003] In townhouses or apartments equipped with a home network, a wall pad equipped with a video doorphone is connected to a door opening / closing device, a video call device equipped with a video doorphone, lighting fixtures, and heating devices through a home network control device, and four lobby phones provide voice / video calls with the video phones of each household.

[0004] As prior art related to this, Patent No. 10-0676857 has registered a "communication device using RS485 protocol."

[0005] FIG. 1 is a configuration diagram of a communication device adopting a modified star-shaped wiring structure of conventional RS485. The main control unit (10) has 16 ports (101 to 116), and each of the ports is connected to each other by a common bus (20) located inside the main control unit (10). Household appliances and programmable switches (PS) within the home network can be connected to each port. Each port (101 to 116) and the household appliance or programmable switch connected to that port are connected by branch lines (201 to 216), and each connection uses the RS485 protocol.

[0006] RS-485 is one of the serial communication standards for connecting computers and peripheral devices, and is an extended version of RS-232 and RS-422.

[0007] The main control unit (10) is responsible for managing the entire network system, and the CPU (30) of the main control unit (10) is connected to one end of the common bus (20) and transmits control signals and / or data for home appliances or programmable switches to the bus (20) whenever necessary. Home appliances or programmable switches connected to each port (101 to 116) receive control signals and / or data transmitted from the bus (20) and perform the corresponding operations.

[0008] Communication devices using RS485 adopt a star-shaped wiring structure, a variation of RS485.

[0009] This relates to a communication device that introduces a new wiring method to overcome the problems associated with the conventional daisy-chain method when configuring home networking using RS485 communication. With RS485 communication, even if one device on the network fails, the remaining devices connected thereafter can operate normally without being affected, and it is also possible to easily identify the specific device where the failure occurred.

[0010] A communication device using the RS485 protocol,

[0011] Multiple ports and,

[0012] It includes a bus connecting the above ports in series,

[0013] The above bus is placed only within the above communication device, and

[0014] Each of the above ports can be connected to an external communication device via a branch line, and

[0015] The connection between the above port and the above external communication device uses the RS485 protocol, and

[0016] It is characterized by having a star-shaped structure in appearance.

[0017] However, regarding home network household devices such as lobby phones and video phones installed at entrances, prior to the development of our RS485 data-video transmission device, complaints arose due to video quality failures when the RJ45 connector module connected to the lobby phone was cut and the wires were spliced ​​one by one in the event of a line break.

[0018] With HomeNet, excessive costs were incurred for SIP intercom server maintenance and upkeep. Furthermore, in small apartments, switching to the RS485 data communication method resulted in the inconvenience of broken wires when all lines had to be integrated and joined, requiring disconnection during service to identify and reconnect the faulty line. Prior art literature

[0019] Patent Registration No. 10-0676857 (Registration Date January 25, 2007), "Communication device using RS485 protocol", Alticast Co., Ltd. The problem to be solved

[0020] The objective of the present invention to solve the above problems is to provide a multi-channel voice and video distribution device with 4 channels of input and 8 channels of output using an RS485 bus method that is connected to 4 lobby phones (4 channel inputs), wherein the 8 channels of output are connected to the video phones of each household by each line of the 8 channels of output for voice / video transmission, and wherein 8 lines of CH2-A and CH-2B are branched from the multi-channel voice and video distribution device with 4 channels of input and 8 channels of output using an RS485 bus method and connected to the security office telephone through a home net hub, thereby providing a multi-channel voice and video distribution device with 4 channels of input and 8 channels of output connected to a home net video phone and a lobby phone. means of solving the problem

[0021] To achieve the objective of the present invention, a 4-channel input 8-channel output multi-channel voice and video distribution device connected to a lobby phone comprises an RS485 bus type multi-channel voice and video distribution device that is connected to four lobby phones, receives 4-channel input through each lobby phone and each 4-channel RJ45 connector, distributes voice and video, and is connected to each household's video phone via each line of the 8-channel output for voice / video transmission through each 8-channel RJ45 connector, and is connected to a security office telephone via a home network hub via the RS485 bus type from the RS485 bus type multi-channel voice and video distribution device.

[0022] The above RS485 bus-based multi-channel voice and video distribution device

[0023] It includes four RJ45 connectors receiving input with 8 lines per channel for 4-channel inputs connected to each of the four lobby phones; four relays connected in parallel to each of the four RJ45 connectors; a 75Ω impedance matching circuit section for 75Ω impedance matching grounded through the four relays and resistors; four video splitter ICs connected in parallel to each of the four relays and the 75Ω impedance matching circuit section; and eight RJ45 connectors connected to each of the four video splitter ICs and Vout1 and Vout2, connected to each of the four RJ45 connectors via a bus method with 8 lines per channel for each of the 8-channel outputs, and connected to each of the video phones of each household for each of the 8-channel outputs.

[0024] Of the four RJ45 connectors receiving input with eight lines per channel for the above four-channel input, and the eight RJ45 connectors outputting with eight lines for the above eight-channel output,

[0025] Line 8 consists of 1, 2 RS485 signal data (household call signal), 3, 4 CH1-A, CH1-B for lobby phone voice calls, 5, 6 CH2-A, CH2-B for security office phone voice calls, 7 Vin input voltage, and 8 ground (GND).

[0026] The 4-channel input, 8-channel output multi-channel audio and video distribution device connected to the home network video phone and lobby phone

[0027] (1) When each lobby phone call is made, the corresponding relay is driven and a video signal is input, (2) the input video signal is input to the video splitter IC (video amplifier IC providing Vout1 and Vout2) through the 75Ω impedance matching circuit, and (3) the video splitter IC (video amplifier IC providing Vout1 and Vout2) is amplified by 6dB and then output to each RJ45 connector through an internal 75Ω drive.

[0028] The above RS485 bus type multi-channel voice and video distribution device has 8 lines of CH2-A and CH-2B branched off via the RS485 bus type and connected to the security office telephone through the home network hub. Effects of the invention

[0029] The 4-channel input 8-channel output multi-channel voice and video distribution device of the present invention, which is connected to each of the four lobby phones, is connected to four lobby phones (4-channel input) and provides a 4-channel input 8-channel output multi-channel voice and video distribution device using the RS485 bus method. The 8-channel output is used by connecting to the video phones of each household for each line of the 8-channel output for voice / video transmission, and enables the installation of 8-generation RS485 video phones / interphones. From the RS485 bus method 4-channel input 8-channel output multi-channel voice and video distribution device, 8 lines of CH2-A and CH-2B are branched and connected to the security office telephone through a home network hub.

[0030] For home network household devices, if you connect the line connected to the hub in the middle EPS room of each line to the output of our RS485 data video transmission device by plugging the RJ45 connector connected to the existing hub into our RS485 data video transmission device, all wiring for the RS485 intercom is completed. Brief explanation of the drawing

[0032] Figure 1 is a configuration diagram of a communication device adopting a modified star-type wiring structure of conventional RS485. Figure 2 is a configuration diagram of a system linked with a lobby phone. Figures 3a and 3b are product photos of an RS485 bus-type 4-channel input 8-channel output voice and video distribution device connected to four lobby phones according to the present invention. Figure 4 is an internal circuit diagram of an RS485 bus-type 4-channel input 8-channel output multi-channel voice and video distribution device connected to four lobby phones according to the present invention. Figure 5 is a photo showing the change of the apartment's home network hub to an RS485 bus-type hub connection for voice and video call services between the home network video phone and the lobby phone. Specific details for implementing the invention

[0033] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings, including the structure and operation of the invention.

[0034] The present invention is not limited to the disclosed embodiments and may be implemented in various different forms by those skilled in the art. In the description of the present invention, detailed descriptions of related known technologies or configurations are omitted if it is determined that such detailed descriptions may unnecessarily obscure the essence of the invention. Additionally, the same drawing numbers are assigned in different drawings when indicating the same configuration.

[0035] This study is not limited to specific embodiments and should be understood to include all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0036] The 4-channel input 8-channel output multi-channel voice and video distribution device of the present invention, which is connected to each of the four lobby phones, is connected to four lobby phones (4-channel input) and provides a 4-channel input 8-channel output multi-channel voice and video distribution device using the RS485 bus method. The 8-channel output is connected to the video phones of each household for each line of the 8-channel output for voice / video transmission, and allows for the installation of 8-generation RS485 video phones / interphones. From the RS485 bus method 4-channel input 8-channel output multi-channel voice and video distribution device, 8 lines of CH2-A and CH-2B are branched and connected to the security office telephone through a home network hub.

[0037] (Example)

[0038] Figure 2 is a system configuration diagram linked with a lobby phone.

[0039] In row houses or apartments equipped with a home network, a wall pad equipped with a video doorphone is connected to a door opening / closing device, a video call device equipped with a video doorphone, lighting fixtures, and heating devices through a home network control device, and four lobby phones provide voice / video call services with the video phones of each household. In addition, the wall pad is connected to the main unit in the fire control room and the security office telephone along the vertical ground floor through a data distributor, and is connected to the parking control server and the remote meter reading server for each household.

[0040] Figures 3a and 3b are product photos of an RS485 bus type 4-channel input 8-channel output voice and video distribution device connected to four lobby phones according to the present invention.

[0041] FIG. 4 is an internal circuit diagram of a multi-channel voice and video distribution device with a 4-channel input and 8-channel output RS485 bus type connected to four lobby phones according to the present invention.

[0042] A 4-channel input 8-channel output multi-channel voice and video distribution device connected to each of the 4 lobby phones is connected to the 4 lobby phones (4-channel input) and provides a 4-channel input 8-channel output multi-channel voice and video distribution device using the RS485 bus method. The 8-channel output is used by connecting each line of the 8-channel output for voice / video transmission to the video phones of each household (8 video phones), and it is possible to install 8 household RS485 video phones / intercoms.

[0043] A multi-channel voice and video distribution device with 4 channels of input and 8 channels of output connected to 4 lobby phones includes a multi-channel voice and video distribution device of the RS485 bus type, which is connected to 4 lobby phones and receives 4 channels of input through 4 channels of RJ45 connectors for each lobby phone, and distributes voice and video to be connected to the video phones of each household for each line of 8 channels of output for voice / video transmission through 8 channels of RJ45 connectors.

[0044] Eight lines of CH2-A and CH-2B are branched from the above RS485 bus multi-channel voice and video distribution device via the RS485 bus and connected to the security office telephone through a home network hub, and

[0045] A multi-channel audio and video distribution device using a 4-channel input, 8-channel output RS485 bus method connected to 4 lobby phones

[0046] Four RJ45 connectors receiving input with 8 lines per channel for 4-channel input connected to each of the four lobby phones mentioned above;

[0047] Four relays, each having one of the four RJ45 connectors connected in parallel;

[0048] A 75Ω impedance matching circuit section for 75Ω impedance matching grounded through the above four relays and resistors;

[0049] Four video splitter ICs (video amplifier ICs provided by Vout1 and Vout2) each connected in parallel with the above four relays and the above 75Ω impedance matching circuit section; and

[0050] The above four video splitter ICs are connected to Vout1 and Vout2, and for each of the 8 channel outputs, the above four RJ45 connectors are connected via a bus method with 8 lines per channel, and each line of the 8 channel outputs is connected to a video phone of each household, and includes 8 RJ45 connectors.

[0051] Of the four RJ45 connectors receiving input with eight lines per channel for the above four-channel input, and the eight RJ45 connectors outputting with eight lines for the above eight-channel output,

[0052] Line 8 consists of 1, 2 RS485 signal data (household call signal), 3, 4 CH1-A, CH1-B for lobby phone voice calls, 5, 6 CH2-A, CH2-B for security office phone voice calls, 7 Vin input voltage, and 8 ground (GND).

[0053] The above RS485 bus type multi-channel voice and video distribution device has 8 lines of CH2-A and CH-2B branched off via the RS485 bus type and connected to the security office telephone through the home network hub.

[0054] The 4-channel input, 8-channel output multi-channel audio and video distribution device connected to the home network video phone and lobby phone

[0055] (1) When each lobby phone call is made, the corresponding relay is activated and a video signal is input.

[0056] (2) The input video signal is input to the video splitter IC (video amplifier IC providing Vout1 and Vout2) through the 75Ω impedance matching circuit.

[0057] (3) The video splitter IC (video amplifier IC provided by Vout1 and Vout2) outputs to each RJ45 connector after 6dB amplification and through an internal 75Ω drive.

[0058] (4) One of the output RJ45 connectors is connected to the upper part.

[0059] Figure 5 is a photo showing the change of the apartment's home network hub to an RS485 bus hub connection for voice and video call services of the home network video phone and lobby phone.

[0060] For home network household devices (in-home video phones, entrance lobby phones), if you connect the line connected to the hub in the intermediate EPS room of each line to the output of our RS485 data video transmission device by plugging the RJ45 connector connected to the existing hub into our RS485 data video transmission device, all wiring for the RS485 intercom is completed.

[0061] * 4-in 8-out hub for RS485 data and video transmission

[0062] 1. Due to excessive costs for home network SIP intercom server maintenance and repair, when switching to the RS485 data communication method in small apartments, there is the inconvenience of line disconnection occurring when all lines are integrated and joined, and when disconnecting all lines to identify the faulty line and reconnecting it during service. Additionally, individual amplifiers must be installed for the video signal of the lobby phone in each unit, and since the video signal of the in-home video phone is good, it is impossible to install one video amplifier per unit. Therefore, we have developed a hub for transmitting RS485 data voice and video with a built-in 4-in 8-out RS485 data video amplifier distributor IC (video distributor IC).

[0063] For HomeNet generation devices, if you connect the line connected to the hub in the intermediate EPS room of each line to the output of our RS485 data video transmission device by plugging the RJ45 connector, which is currently connected to the existing hub, into our RS485 data video transmission device, all wiring for the RS485 intercom is completed. Prior to the development of our RS485 data video transmission device, there were many complaints regarding video quality issues when the RJ45 connector module connected to the lobby phone was cut and the wires were spliced ​​one by one; however, these complaints have been eliminated through the installation of our RS485 data video transmission device.

[0064] A multi-channel voice and video distribution device with 4-channel input and 8-channel output connected to 4 lobby phones is connected to each of the 4 lobby phones via input (4-input), and the 8-channel output is connected to the video phones of each household via 8 lines for voice / video transmission, allowing for the installation of 8-generation RS485 video phones / intercoms.

[0065] Embodiments according to the present invention are implemented in the form of program instructions that can be executed through various computer means and may be recorded on a computer-readable recording medium. The computer-readable recording medium may include program instructions, data files, and data structures alone or in combination. The computer-readable recording medium may include magnetic media such as storage, servers, hard disks, floppy disks, and magnetic tapes; optical recording media such as CD-ROMs and DVDs; magneto-optical media such as floptical disks; and hardware devices configured to store and execute program instructions on storage media such as ROM, RAM, flash memory, storage, etc. Examples of program instructions may include machine code as well as high-level language code that can be executed by a computer using an interpreter. The hardware device may be configured to operate as one or more software modules to perform the operation of the present invention.

[0066] The method of the present invention can be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, memory card, hard disk, magneto-optical disk, storage device, etc.) in a form that can be read using computer software.

[0067] As described above, although the present invention has been explained with reference to specific embodiments, the present invention is not limited to the same configuration and operation as the specific embodiments to illustrate the technical concept as described above, and may be implemented with various modifications within the limits of the technical concept and scope of the present invention, and the scope of the present invention shall be determined by the claims set forth below.

Claims

Claim 1 It includes an RS485 bus type multi-channel voice and video distribution device that is connected to four lobby phones and receives four channel inputs through four RJ45 connectors for each lobby phone, distributes voice and video, and connects to the video phones of each household by each line of eight channel outputs for voice / video transmission through eight RJ45 connectors; the RS485 bus type multi-channel voice and video distribution device is connected to the security office telephone via a home network hub via the RS485 bus method; and the RS485 bus type multi-channel voice and video distribution device comprises four RJ45 connectors receiving input with eight lines per channel for four channel inputs connected to each of the four lobby phones; four relays connected in parallel to each of the four RJ45 connectors; and a 75Ω impedance matching circuit for 75Ω impedance matching grounded through the four relays and resistors. A 4-channel input 8-channel output multi-channel voice and video distribution device connected to a lobby phone comprising: 4 video splitter ICs (video amplifier ICs providing Vout1 and Vout2) each connected in parallel with the 4 relays and the 75Ω impedance matching circuit section; and 8 RJ45 connectors connected to the 4 video splitter ICs and Vout1 and Vout2, connected via a bus method with 8 lines per channel for each of the 8-channel outputs, and connected to the video phones of each household for each of the 8-channel outputs. Claim 2 delete Claim 3 A 4-channel input 8-channel output multi-channel voice and video distribution device connected to a lobby phone, wherein, in the 4 RJ45 connectors receiving input with 8 lines per channel for the 4-channel input and 8 RJ45 connectors outputting with 8 lines for the 8-channel output, the 8 lines consist of: 1, 2 RS485 signal data (household call signal), 3, 4 CH1-A, CH1-B for lobby phone voice calls, 5, 6 CH2-A, CH2-B for security office phone voice calls, 7 Vin input voltage, and 8 ground (GND). Claim 4 A 4-channel input, 8-channel output multi-channel voice and video distribution device connected to a lobby phone, wherein (1) a corresponding relay is driven and a video signal is input upon each lobby phone call, (2) the input video signal is input to a video distributor IC (video amplifier IC providing Vout1 and Vout2) through the 75Ω impedance matching circuit, and (3) the video distributor IC (video amplifier IC providing Vout1 and Vout2) outputs to each RJ45 connector through an internal 75Ω drive after 6dB amplification. Claim 5 In claim 1, the RS485 bus type multi-channel voice and video distribution device is a 4-channel input 8-channel output multi-channel voice and video distribution device connected to a lobby phone, wherein 8 lines of CH2-A and CH-2B are branched via the RS485 bus type and connected to the security office telephone through the home network hub.

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