KR100292202B1 - Apparatus for securing new channel and sensing alarm using adsl apparatus - Google Patents

Abstract

PURPOSE: An apparatus for securing a new channel and sensing an alarm using an ADSL(Asymmetric Digital Subscriber Line) apparatus is provided to diversify a service of the ADSL apparatus by transmitting and receiving 6 64Kbps digital data using 384Kbps input and output ports. CONSTITUTION: FIFO units(10) are located at front terminals of signal interface units of an ADSL-C apparatus and an ADSL-R apparatus, and arrange 64Kbps digital data inputted from each terminal or output 64Kbps digital data to each terminal. Multiplexers/demultiplexers(20) multiplex outputs of the FIFO units(10) and outputs the multiplexed 384Kbps data to the ADSL-C apparatus and the ADSL-R apparatus, or demultiplex the 384Kbps data from the ADSL-C apparatus and the ADSL-R apparatus as 6 54Kbps data and output the 6 54Kbps data to the FIFO units(10).

Description

New channel acquisition and alarm detection device using ADSL device

The present invention uses a new ADSL device to implement a communication service function using an alarm monitoring function and a new channel as well as a VOD and telephone service using an Asymmetric Digital Subscriber Line (ADSL) device for VOD (Video On Demand) service. It relates to channel acquisition and alarm monitoring device.

The ADSL transmission system allows users to access channels of T1 (1,544Mbps) physical layer that go out from the telephone station to the subscriber's home in one direction as well as 9.6Kbps asynchronous and bidirectional control signals for each subscriber. It also comes with the Plain Old Telephone Service (POTS) service.

In addition, ADSL system is a device for transmitting and receiving 1.544Mbps one-way signal and 9600bps two-way signal without a separate relay device using a two-line telephone subscriber line.

The control information exchanged bidirectionally between the subscriber and the telephone station occupies a lower frequency band than the video channel, and three separate signal informations exist simultaneously on the two-wire copper wire.

Since these signals are transmitted in frequency division and do not affect each other, the video information can be transmitted even during a call, and a voice telephone service is provided even when the video information power is turned off.

This ADSL system is composed of one ADSL-C device in a telephone station per loop and an ADSL-R device at an end of a network as shown in FIG. 1, and carries a carrierless amplitude modulation / phase modulation. By adopting the line coding method of), it is possible to transmit not only the existing telephone signal but also T1 level data and control signal at the same time even with the telephone line with C bandwidth.

2 (a) and 2 (b) show detailed block diagrams of an ADSL-C device and an ADSL-R device. In the ADSL-C device, T1 video data and control channel data are input from a VOD server (not shown). The signal interface unit 1A, the line signal framer 2A for multiplexing the output of the signal interface unit 1A, the transceiver 3A for modulating the output of the line signal framer 2A and transmitting it to the transmission line, and each part of the system And a host interface controller 4A for controlling the system, and the ADSL-R apparatus includes a host interface controller 4B for controlling each system, a transceiver 3B for receiving and demodulating a signal from a transmission line, and the transceiver 3B. A line signal framer 2B for demultiplexing the output signal of the ") and a signal interface unit 1B for processing the output signal of the line signal framer 2B and outputting the T1 video data and the control data.

The ADSL-C device and the ADSL-R device have the same structure and operation, and when a signal is transmitted from the ADSL-R device to the ADSL-C device, the functions of the respective parts of the ADSL-R device and the ADSL-C device are as described above. Is reversed.

The above ADSL device receives 1.51 Mbps T1 video data from the VOD server, modulates the CAP in ADSL-C, transmits it to the ADSL-R, and provides the VOD service to the subscriber. The control signal is connected to the server in the VOD receiver (STB). In order to service a movie and the like, conventionally, an alarm monitoring function and a communication service using a new channel are not implemented, and thus, various services cannot be provided.

The present invention has been made in view of the above points, using a 384Kbps channel of the ADSL device to secure and alarm a new channel using an ADSL device that can additionally implement an alarm monitoring function such as voice and communication services such as G4 fax, Ethernet (Ethernet) The purpose is to provide a monitoring device.

In order to achieve the above object, the present invention secures a new channel through a multiplexer / demultiplexer through six FIFO (First In First Out) stages with six 54Kbps digital data at a 384Kbps input / output port of an ADSL device. Characterized in that it allows the communication service.

1 is a block diagram of a general ADSL device

Figure 2 (a), (b) is a detailed configuration of the general ADSL-C device and ADSL-R device

3 is a block diagram of a new channel acquisition and alarm monitoring apparatus using the ADL device according to the present invention;

4 is a schematic configuration diagram of the multiplexer of FIG.

5 is a detailed configuration diagram of the multiplexer of FIG.

6 (a)-(d) show each signal timing diagram and hex input pattern of the present invention;

* Explanation of symbols for main parts of the drawings

10: FIFO unit 20: multiplexer / demultiplexer

21: Hex counter 22: End gate

23: OR gate DFF1, DFF2: D flip flop

FIG. 3 is a block diagram illustrating a new channel securing and alarm detecting apparatus using the ADSL apparatus according to the present invention, and is provided in each of the ADSL-C apparatus and the ADSL-R apparatus as shown in FIGS. 2 (a) and 2 (b). FIFO unit 10 for sorting 64Kbps digital data inputted from or outputting 64Kbps digital data to each stage, and multiplexing the output of the FIFO unit 10 to 384Kbps multiplexed data for ADSL-C device and ADSL-R device. A multiplexer / demultiplexer 20 for outputting to the FIFO unit 10 by multiplexing or demultiplexing 384Kbps data from the ADSL-C device and the ADSL-R device into 5 64Kbps data is further configured. The group is a 6x1 multiplexer as shown in FIG.

FIG. 5 shows a detailed configuration diagram of the multiplexer of the multiplexer / demultiplexer 20, which receives pulse inputs (Count-1 to Count-3) and 384K clock inputs and outputs outputs (Q1-Q3). It uses the flip-flop (DFF1), the D-flop (DFF2) which receives a clock of 384K and six 64K data inputs, and outputs the outputs (CH1-CH6), and the output of the D-flop (DFF1) and the D-flop (DFF2). Hexadecimal counter 21 for making 384K data, the output Q1 of the D flip-flop DFF1 and the outputs Q2 and Q3 inverted through the inverters INV1 and INV2 and 384K sinks (384K). AND gate 22 for outputting (Sync), or OR gate (23) for receiving 6 input data of 64K of the hex counter 21 and sequentially generating data frames according to 384K clock to output 384K data. do.

In the present invention configured as described above, when 64K digital data is input from each device to the FIFO unit 10 of the ADSL-C device and the ADSL-R device, the FIFO unit 10 aligns the input data to multiplexer / demultiplexer 20. )

The multiplexer / demultiplexer 20 outputs 384K sinks and 384K data from six data of 64K and a 384K clock input from the FIFO unit 10.

That is, the multiplexer / demultiplexer 20 has a D flip-flop DFF1 and an end gate 22 as shown in FIG. 5 from the pulse inputs Count-1 to Count-3 and the 384K clock. B) Output 384K sinks as shown in Figure 3, and the D flip-flop (DFF2), the hex coordinator 21 and the OR gate 23 create data frames in sequence according to the 384K clock, and the 384K data as shown in Figure 6 (C). Outputs

The 384K sink outputs high whenever the outputs Q1-Q3 of the D flip-flop DFF1 are 1,0,0, and FIG. 6 (D) shows a hex input pattern.

The 584K sink and data output from the multiplexer / demultiplexer 20 are output to the signal interface unit of the ADSL-C device and the ADSL-R device, and the output of the signal interface unit is a line signal framer and a transceiver as shown in FIG. 2. Is sent through.

On the other hand, when outputting 384K data from each ADSL-C device or ADSL-R device to each stage, the multiplexer / demultiplexer 20 demultiplexes 384K into six 64K and outputs them to the FIFO unit 10.

The FIFO unit 10 sorts each of the input 64K data and outputs the data to each stage.

Each end is capable of input / output through a microphone / phone, video and audio input / output by a CCD camera and a monitor, and thus an alarm monitoring function can be performed.

As described above, the present invention enables the transmission and reception of six 64K digital data using the 384K input / output port of the ADSL device, thereby diversifying the service of the ADSL device.

Claims (2)

Located in front of the signal interface of the ADSL-C device and ADSL-R device of the ADSL device, FIFO unit 10 for sorting 64Kbps digital data input from each stage or outputting 64Kbps digital data to each stage, and the FIFO unit ( 10) multiplex the output to output multiplexed data of 384 Kbps to the ADSL-C and ADSL-R devices or to demultiplex the 384 Kbps data from the ADSL-C and ADSL-R devices into six 54 Kbps data. New channel acquisition and alarm detection device using an ADSL device, characterized in that consisting of a multiplexer / demultiplexer (20) output to the unit (10). The multiplexer of the multiplexer / demultiplexer 20 includes a D flip-flop (DFF1) for receiving a pulse input (Count-1 to Count-3) and a 384K clock input and outputting the outputs (Q1-Q3). And 384K data using a D flip-flop (DFF2) that receives a 384K clock and six 64K data inputs and outputs the outputs (CH1-CH6), and an output of the D flip-flops (DFF1) and D flip-flops (DFF2). And gates for outputting 384K sinks by hexadecimal counter 21, and output Q2 and Q3 inverted through output Q1 and inverters INV1 and INV2 of D flip-flop DFF1. And an ORA gate 23 which receives six input data of 64K of the hex counter 21 and sequentially generates data frames according to 384K clocks and outputs 384K data. New channel securing and alarm detecting device used.