KR950012591B1 - Data communication circuits for ha system - Google Patents

Abstract

a data communication circuit commonly connected to each of households and a guard room, for transmitting/receiving control data; a central processing unit for processing the control data to generate a control signal for calling each of households and the guard room and for controlling the selection of a channel through which a voice is transmitted and the connection of a communication line with an office line and a door phone; a handset communication circuit for controlling the communication with a handset under the control of the central processing unit; a matrix circuit for switching the handset to thereby enable the handset to be communicated with the office line, the door phone and the guard room through the handset communication circuit; and a voice path circuit for selecting a communicable channel through communication lines to the guard room under an output control signal of the central processing unit.

Description

Home Automation Security Office and Generation Data Communication Circuit

1 is a block diagram of a generator according to the present invention.

2 is a block diagram of a security guard in accordance with the present invention.

3 is a detailed circuit diagram of the voice path circuit 106 of FIG.

4 is a detailed circuit diagram of the data communication circuit 102 of FIG.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to data communication circuits between home security guards and households, and more particularly to circuits capable of performing data communication in a bus manner and sharing voice paths.

In general, the apartments communicate with each other when urgent contact or abnormality occurs between the guard room and the household. The guard room mainly uses broadcast function speakers or interphones. In another method, when the handset is picked up by the relevant household, it is possible to make a mutual call between households by calling by loop detection. The security room and the household can be connected by two lines (or four wires). Therefore, if you listen to the handset of the phone in the household, you can detect a loop. According to this loop detection, the guard room detects a call in the household, and the household call in the guard room applies a ring (or melody) The phone detects the generation device.

In the guard room, the generation period is all two-wire (or four-wire) connected, which requires considerable wiring during installation. In case of 4 wires, it is possible to use it when the circuit display function is added. When you pick up the handcept in the first generation, the loop is checked in the guard room intercom and the melody is generated. In addition, the call is picked up by the handset from the master intercom. However, this method does not have a big problem in the implementation, but there is a problem in the installation of the light distribution due to the increase in the number of construction lines between the guard room and the generation, and hassle of having to re-install the facility when adding functions.

It is therefore an object of the present invention to provide a circuit that can simplify wiring between guard rooms and households.

Another object of the present invention is to provide a circuit capable of realizing bus-based data communication in a guard room and intergenerational or intergenerational calls.

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

1 is a block diagram of a generation unit according to the present invention. The data communication circuit 102 is capable of transmitting and receiving control data while being commonly connected to each generation and the guard room by a bus system, and the data communication circuit 102. A central processing unit (100) for generating a control signal for each household and guard room call by controlling the control data input from the control unit, selecting a channel for transmitting voice, and controlling a call line for the trunk line and the door phone; By the control of the central processing unit 100, the handcept communication circuit 104, which controls to make a call with the handcept ST1, and the trunk line, the door phone, and the guard room under the control of the central processing unit 100. The guard room and the call line by an output control signal of the central processing unit 100 and the matrix circuit 105 for switching the call from the handcept ST1 through the handcept call circuit 104. The voice path circuit 106 selects a channel to be talked to (L3, L4). The above configuration is the same for each generation.

2 is a configuration diagram of the guard room according to the present invention, the first and the difference between the central processing unit (203) for displaying the result of the situation generated in accordance with the control process of the central processing unit 200 in the guard room ( And the data communication circuit 200 is added when the number of households exceeds a predetermined capacity, and is allocated and serviced according to the control circuit of the central processing unit 200.

FIG. 3 is a detailed circuit diagram of the voice path circuit 206 of FIGS. 1 and 2, wherein the input terminal X of the multiplexer MUX is generated from the central processing unit 200 through the transformer T1 from the matrix circuit 105. The control signal terminals CONT1-CONT2 and INH are connected to allow voice communication through one of the first to eighth channels CH1 to 4-1 and CH1 to 4-2 according to the control signal.

The photocouplers PC1-PC4 are connected from the control terminals CONT1-CONT3-CONTINH of the central processing unit 200, and the output signals of the photocouplers PC1-PC4 are A, B, It is configured to be connected to the C INH stage.

4 is a detailed circuit diagram of the data communication circuits 102 and 202 of FIGS. 1 and 2, which connects the impedance separating means Im between the data bus lines L1 and L2 from the guard room, and the lines from the resistors R1-R3. Connect a transceiver (DRV), connect the photocoupler (OP2) to the transmit and receive enable ends (RXE, TXE) of the line transceiver (DRV) and transmit and receive (TXI, RXC) of the line transceiver (DRV) Connect the photo coupler (OP1, OP3) to the data transmission and reception with the home automation system.

Therefore, a specific embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4, in order to perform data communication for control between the generation unit of FIG. 1 and the guard room of FIG. When transmitting the mutual control data through the central processing unit (100, 200) to process the voice pass circuit 106, 206 to control the voice channel through the control, and through the selected voice channel through the matrix circuit 205 Switch to control of the handcept call circuit 204 to make a call with the handcept STl, and control the central processing unit 200 so that a call signal according to an external event is always input when there is an input to a trunk line and a door phone. Switch to select handcept ST1 in matrix circuit 205. When the central processing unit 100 processes the code input to the trunk line door phone connected to the matrix circuit 103 and confirms that there is a call, the central processing unit 100 receives the handcept communication circuit 104 and the matrix circuit 105. Control to the handcept (ST1) to be able to make a call with the CO line and the door phone.

For intergenerational communication, the control signal for controlling the voice path circuit 106 and the matrix circuit 105 is processed by the central processing unit 100 when the call control data is transmitted through the mutual data communication circuit 102. Once generated and the handcept communication circuit 104 is controlled, an intergenerational call path is formed to allow a call.

Looking at the voice path circuit 106 in detail, when each control terminal (CONT1-CONT2, CONT, INH) of the central processing unit 100 is input to the photocoupler (PC1-PC3), a logic signal for channel selection, The input of the input terminal X selects one of the channels CH1-CH4-1.2 according to the input logic (2 ² = 4) of the A and B stages, and transmits the lines L1 and L2.

4 is a detailed circuit diagram of the data communication circuits 102 of FIGS. 1 and 2, in which the guard room or generation period data communication is performed through the data bus lines L1 and L2, and the transmission / reception signal receives the transceiver (DRV) port. Input to the central processing unit 100 by driving the coupler (OP1), the transmission is to be output from the central processing unit 100 by the drive of the port coupler (OP3), enable according to the input and reception of the central processing unit ( When the transistor Q2 is turned on according to the transmit / receive enable control signal at 100, the phototransistor is turned on by driving the light emitting diode to enable the transmit / receive mode of the transceiver DRV. Receives the received signal by driving the phototransistor Q1 by driving the phototransistor Q4 by driving the light emitting diode on by driving of When is ever sent a signal to the transceiver (DRV) by a light emitting diode on the driving of the transistor (Q3).

As described above, adapting the bus guard room intercom system to the apartment saves the connection wiring of the apartment and facilitates the expansion due to the bus system, and enables the centralized apartment to be applied to a large unit. This has the advantage of being able to manage up to more than 900 generations.

Claims (1)

In the home automation guard room and intergenerational data and voice communication circuit, a data communication circuit 102 capable of transmitting and receiving control data while being connected to each generation and guard room in a bus manner in common, and the data communication circuit 102 And a central processing unit (100) for generating control signals for each household and guard room calls by controlling the control data input from the control panel, selecting a channel for transmitting voice, and connecting the call line to the trunk line and the door phone. , A handcept call circuit 104 for controlling a call with the handset ST1 by the control of the central processing unit 100, a trunk line, a door phone, and a guard room under the control of the central processing unit 100. A matrix circuit 105 for switching the handset ST1 so that a call can be made through the handcept communication circuit 104 and the output control signal of the central processing unit 100. The data communication circuit between the guard room and the generation of the home automation, characterized in that it consists of a voice pass circuit 106 for selecting the channel to call to the guard room and the call lines (L3, L4).