KR100500154B1 - Combination system for take in multi watching system card reader - Google Patents

Abstract

In the unmanned security and access control system, multiple subscriber devices and detection devices installed in each monitoring area of a large-scale and high-rise building can be connected to a single device to communicate with the central control device through a single dedicated / airline. In so that,

A transmission / reception unit connected to the central control room through a dedicated line and an aerial line to transmit and receive various data for unattended monitoring; In the unmanned monitoring system including a control unit for controlling the overall operation, installed in a plurality of monitoring areas and connected to a predetermined number or more of the expansion device consisting of a subscriber device and a sensing device, and serialized the downloaded command and monitoring information of the area And an interface unit for interfacing with communication, and memory means for registering and storing registration values for subscriber devices and detection devices installed in a plurality of monitoring areas as expansion devices and IDs of user cards assigned to each subscriber device and detection devices. The transceiver includes a connection of a dedicated line / public line as a transformer coupling for a no-voltage DTMF communication, and registers a subscriber device and a sensing device installed in a plurality of monitoring areas as an extension device and registers a user card. The control unit receives the "C tone" set in the dedicated line decoder during communication using the dedicated line. If there is no event data to be uploaded to the central controller side, the controller responds with the set "D tone" and, if there is event data, controls the communication of the handshake method of configuring and transmitting the uploaded data in a predetermined protocol format. If the communication with the aerial decoder is confirmed, when the connection with the aerial decoder is confirmed, the set first signal sound and the second signal sound are transmitted as a handshake signal and uploaded within a predetermined time. Handshake & kiss-off communication that transmits event data to the aerial decoder and sends a "key off tone", which is the data reception end signal, and disconnects when the following 'DTMF tone' signal is not detected by the aerial decoder. It characterized in that to control.

Description

COMBINATION SYSTEM FOR TAKE IN MULTI WATCHING SYSTEM CARD READER

The present invention relates to an unmanned security guard and access control system, and more specifically, to a central control device by connecting a plurality of subscriber devices and detection devices installed in each monitoring area in a large-scale, high-rise building using a single coupling device. The present invention relates to a coupling device for accommodating a plurality of subscriber devices which extends to enable communication of a single line / public line.

In general, the unmanned security guard and access control system is a system that reads the user information contained in the card in a contact or contactless card reader manner and permits the initiation and release of the guard for the registered personnel and access.

Such an unmanned security guard and access control system is equipped with a variety of sensors for detecting unauthorized intrusion of outsiders at a predetermined position in the surveillance area, the signal of each sensor is comprehensively detected by the subscriber device or sensing device installed in the surveillance area, The signal detected by the device or the sensing device is transmitted to a central control device installed at a remote location through a leased line or an aerial line.

Therefore, the operator of the central control apparatus monitors the occurrence of unauthorized intruders from the signal detected by the subscriber device or the sensing device in each monitoring area, and protects the life and property in the monitoring area through a quick response accordingly.

In recent years, as the buildings are being built into large-scale and high-rise buildings, as the security and management areas become wider, subscriber devices and sensing devices respectively installed in one monitoring area also increase, thus connecting with the central control device. As the leased line and the aerial line also increase, it causes the complexity of the line, which requires expansion of aerial decoders, leased line decoders, mux and aerial remote devices in the central control unit, which are expensive devices with limited input / output ports. Is generated.

The present invention has been made to solve the above problems, the object of which is to provide a sensing device 16 installed in each monitoring area in a large-scale, high-rise building; It provides a coupling device for connecting a plurality of subscriber devices connected by 1, and the relaying of the coupling device is extended so that communication with the central control device can be performed through one dedicated line / air line.

In addition, it is possible to track all the operation status of the operator after the operation to ensure that the operation such as various boundaries and releases quickly and accurately to the central control device.

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The present invention for realizing the above object is a power supply for supplying commercial power to the operating power required for each load element, the auxiliary battery having a charge and discharge function; A keypad unit including numeric keys and function keys, for setting ID registration and conditions of various operation modes for the connected user card; A detector for detecting a signal of a sensor installed in a surveillance area to detect whether an intruder is generated in the surveillance area; A transmission / reception unit connected to the central control room through a dedicated line and an aerial line to transmit and receive various data for unattended monitoring; A card reader which reads user information contained in a card; A display unit which displays information on the general operation and the registration process of the card possessed by the user; Registration of user card, access control for non-registered card user, power monitoring, power recovery detection, disconnection and recovery detection of leased line, boundary and release by registered user card, red boundary, intruder detection in monitoring area, occurrence in monitoring area Recovery of abnormal status, monitoring area setting, emergency monitoring area setting, delayed monitoring area setting, delayed entry and exit of the monitoring area, alarm sending or not setting, alarm sending time setting, subscriber number setting function, In the unmanned surveillance system including a control unit for setting the use status, the number of use of the expander, forcible boundary setting and release, card reader disconnection and recovery detection, trunk line change detection and trunk line check function, are installed in a plurality of monitoring areas. Name that is downloaded by connecting more than a certain number of expansion devices consisting of subscriber device and detection device And an interface unit for interfacing the monitoring information of the corresponding area through serial communication; registration values for the subscriber devices and the sensing devices installed in the plurality of monitoring areas as expansion devices and IDs of the user cards assigned to the respective subscriber devices and the sensing devices. It further comprises a memory means for registering and storing the transmission and reception unit for the connection of the dedicated line / public line as a transformer for voltage-free DTMF communication, and registration and user of the subscriber device and the sensing device installed in a plurality of monitoring areas as an extension device The controller performs registration of the card, and the controller responds with the set "D tone" when there is no event data to be uploaded to the central controller when receiving the "C tone" set in the dedicated line decoder during communication using the dedicated line. If there is event data, it configures it in a predetermined protocol format and uploads it. Controls the communication of the shake method, attempts to connect the call to the aerial number decoder when communicating with the aerial line, and when the connection with the aerial decoder is confirmed, transmits the set first tones and the second tones as a handshake signal, and Handshake to send event data to be uploaded to the aerial decoder side within a certain time, and to transmit the data reception end signal "Kiss Off Tone" when the aerial decoder does not detect the next "DTMF tone" signal, and disconnects the connection. & Control the communication of the kiss-off method.

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

As can be seen in Figure 1, a coupling device for accommodating a plurality of subscriber apparatuses according to the present invention includes a keypad 10, a detector 102, a transceiver 103, a power supply 104, a card reader ( 105, the display unit 106, the memory unit 107, the voice memory unit 108, the interface unit 109, the control unit 110, and the speaker Spk.

The keypad 101 includes a numeric key of 0 to 9 and a predetermined function key, and registers and combines the registration of the connected subscriber device and the detection device and the ID of the RF card possessed by the user of the subscriber device and the detection device. Set up and initialize the device and set the conditions for various detection modes and operating conditions.

The detection unit 102 is directly connected to a detection sensor installed in an arbitrary surveillance area, and detects whether or not an intruder in the corresponding surveillance area is detected through the detection of a sensor signal, and outputs information about the intruder.

The transceiver 103 is connected to the central controller through a dedicated line and an aerial line, and performs communication with the central controller through an established interface scheme and protocol.

In the case where a communication event with the central control apparatus occurs, the transmission and reception unit 103 preferentially enables communication through a leased line, and when the leased line is disconnected or an abnormality occurs, it is automatically switched to a public line. This ensures that communication with the central control unit is maintained in any environment.

The power supply unit 104 supplies AC 110-220V / 50-60Hz power input from the outside to a predetermined voltage required by each load element in the coupling device, and further supplies an auxiliary battery including a charge / discharge function. In addition, stable operation can be maintained even when the input of an external power source is cut off.

The card reader 105 has a built-in RF antenna, and reads information contained in a card which is in contactless proximity to determine whether the card is a registered user by analyzing the ID of the user.

The card reader 105 is preferably implemented in a contactless manner, but includes a contact or magnetic field reading.

The display unit 106 is composed of a liquid crystal display or a display element composed of seven segments or LEDs. The display unit 106 provides general information on the general operation of the coupling device, the subscriber device, and the detection device, and the registration process of the card possessed by the user. Mark it.

The memory unit 107 stores registration values for each subscriber device and sensing device to be connected, and ID and registration information for the user's card assigned to each device.

The voice memory unit 108 stores a voice message about a registration process for each subscriber device and a detection device to be connected, and a function setting provided to a user when registering, alerting, and releasing a user card assigned to each device. Voice messages are stored to warn unauthorized intruders in the event of an emergency.

The interface unit 109 connects a plurality of subscriber devices and detection devices installed in respective surveillance areas in a large-scale and high-rise building, and performs a serial interface with the connected subscriber devices and detection devices and the protocol set.

The control unit 110 controls the overall operation, and its main functions include card registration for subscriber and sensor users, access control for non-registered card users, power supply monitoring, power supply status detection, power Recovery detection function, dedicated line disconnection and recovery detection function, communication line disconnection and recovery detection function between the joining device and the expander subscriber device and the detection device, the function of the boundary and release by the registered user card, the redundancy boundary by the registered user card And release function, intruder detection function in surveillance area, event recovery function in surveillance area, access detection function of registered card user, unique number registration function for connected expander subscriber device and detection device, monitoring area setting Function, emergency monitoring area setting function, delay monitoring area setting function, when delayed entry to the monitoring area Setting function, setting of delay time in monitoring area, setting of emergency alarm area alarm sending or not, alarm sending time setting function, subscriber number setting function, extension device subscriber and monitoring device setting function, using expander Number setting function, power failure detection and recovery detection function, card reader open and close detection function, forced boundary setting and release function, card reader disconnection and recovery detection function, device door open and close detection function, subscriber device and detection, trunk line switching It includes detection function, trunk line check detection function and communication control with central control device.

Connection of the unmanned monitoring system including the coupling device according to the present invention having the above components is connected as shown in FIG.

As can be seen in the figure, in one coupling device 100, a plurality of subscriber apparatuses 200a-200n and sensing devices 300a-300n respectively installed in a large monitoring area are provided with a communication line, for example, RS-485 communication. Connected via a cable, the coupling device 100 is connected to the dedicated line decoder 400 through a dedicated line, and is connected to the aerial decoder 500 through an aerial line.

The dedicated line decoder 400 and the aerial decoder 500 are connected to the mux 600, and the mux 600 collectively monitors all functions of the unmanned surveillance system through the aerial remote apparatus 700 and takes action thereon. It is connected to the central control unit (800).

The reason for the dual connection of the connection device 100 to the leased line and the aerial line is to give a stable communication between the coupling device and the central control unit 800 when the disconnection of the leased line is duplicated by the aerial line.

In addition, the dedicated line decoder 400, the aerial decoder 500, the mux 600 and the aerial remote device 700 is installed in the central control room.

In the present invention having the connection as described above, the interface between the coupling device 100 and the dedicated line decoder 400 is a transformer coupling for a voltageless dedicated line DTMF communication, and communicates using a typical CONTACT_ID FORMAT format.

When the communication using the CONTACT_ID FORMAT format is a handshake communication, when the dedicated line decoder 400 transmits the "C tone" to the coupling device 100, the coupling device 100 must receive the "C tone" in the center. If there is no event data to be transmitted to the control device 800 side, it responds with "D tone", and if there is event data to be sent, the upload data (Up Load Data) is in the form of "UUUU 18 E (R) CCC EE ZZZ". Configured and transmitted, the download data (Down Load Data) is configured and transmitted in the "OE DD CC" format.

In the above description, "UUUU" is a user ID, and the range of use is 0001 to 9999, "18" is an identifier of CONTACT_ID FORMAT, "E (R)" means occurrence of an event or recovery of generated event, and "CCC". Is the generated event code, and "EE" means the ID of the expander when the expander subscriber device or sensing device is combined, and is expressed as "00" when the expander is not coupled, and "ZZZ" is armed. Card number on / release means card number on intrusion / recovery.

In addition, "OE" means the command of the download data, "DD" means the equipment number, "CC" distinguishes the boundary / release.

In the case of the equipment number "DD" means the coupling device itself, for example, "00", and when the expander is coupled is represented by "01 ~ 0N" of the specified number of the combined device, the boundary / release In the case of the boundary of "CC", it is expressed as "01", for example, and "02" when it is released.

In addition, the interface between the coupling device 100 and the aerial decoder 500 is a transformer coupling for "DTMF" communication on the aerial (telephone line) of the "PSTN network", which is also similar to the communication with the dedicated line decoder 400. CONTACT_ID FORMAT "format is used and handshake & kiss off communication is applied.

When the handshake and kiss-off communication is detected an event in the coupling device 100, when the coupling device 100 makes a call using a phone number designated as the aerial decoder 500 to upload, the aerial The decoder 500 uses a ring counter to count a predetermined number of rings, and when the predetermined number of rings is counted, the aerial decoder 500 connects the aerial line using a relay which is an internal aerial connection switching means, and then sets a predetermined time example. For example, after the 800 ms delay, the set first tones and the second tones to confirm that the connection is completed are transmitted to the coupling device 100 as a handshake signal.

The first signal tone set above is 1400 Hz and 150 ms, for example, the second signal tone is 2300 Hz and 150 ms, and the interval between the first signal tone and the second signal tone is set to 150 ms, for example.

As described above, the coupling device 100 that receives the handshake signal from the aerial decoder 500 transmits event data to be uploaded to the aerial decoder 500 in a predetermined time, for example, within 500 ms.

At this time, the aerial decoder 500 maintains the time between the tone and the tone more than the set time 500ms, and if the next 'DTMF tone' signal is not detected, the reception end signal "kiss off tone" to end the reception of data. "Is sent to the coupling device 100 side and the connection is interrupted.

If there is event generation data to be continuously uploaded by the coupling device 100, the next event data is transmitted within a predetermined time, for example, 1.5 seconds, after receiving the " kiss off tone " signal.

In addition, the aerial decoder 500, when the connection of the line is blocked while receiving the event occurrence data from the coupling device 100, if the data is no longer retrieved by searching for data for a predetermined time, for example, 500ms The " kiss off tone " signal is sent to the coupling device 100 side and the connection is cut off.

The data uploaded to the aerial decoder 500 side in the coupling device 100 is configured in the form of "UUU 18 E (R) EE ZZZ" similar to the format of the data uploaded to the dedicated line decoder 400 side. do.

In addition, the interface between the coupling device 100 and the aerial remote device 700 is DTMF communication through the PSTN, which also uses handshake communication in a typical " CONTACT_ID FORMAT " format.

It receives the remote command (Remote Control Download Command) through the RS-232C serial communication from the central control equipment 800 to the aerial remote device 700, the aerial remote device 700 to the designated subscriber telephone number through the public line The coupling device 100 is called by making a phone call, and the coupling device 100 counts the number of rings received using a ring counter, and when the counter of the predetermined number of rings is confirmed, the coupling device 100 is a handshake signal. DTMF tone is transmitted to the aerial remote device 700 to confirm that the communication path is connected.

In the above, the format of the aerial remote command received from the central control equipment 800 to the aerial remote apparatus 700 is configured as follows.

In case of aerial remote boundary, it is "PSTN TTTTTTTTTTTTTTTTTTT UUUU ARMED EE", and in case of aerial remote release, it is "PSTN TTTTTTTTTTTTTTTTTTT UUUU DIARM EE".

In the above, "PSTN" means a command for distinguishing an aerial remote command, "TTTTTTTTTTTTTTTTTTT" is a 19-digit (expandable) telephone number of a subscriber (coupled device), "UUUU" is a user ID, and "ARMED / DIARM" Is the boundary / release command, and "EE" is the ID of the expander in the case of using a subscriber device or a sensing device which is an expander, and is displayed as "00" when the expander is not used.

In addition, the download data format is represented as "BD EE CC", where "BD" is the download command, "EE" is the device number for the subscriber device and the sensing device connected to the combined device or connected device, and "CC". Means boundary and release.

In addition, the upload data format is displayed as "UUUU 18 E (R) CCC EE ZZZ", where "UUUU" is the user ID, the usage range is set from 0001 to 9999, and "18" is the identifier of CONTACT_ID FORMAT. "E (R)" indicates the occurrence of the event and the recovery of the generated event, "CCC" indicates the event code indicating the type of event that occurred, and "EE" indicates that the subscriber device or sensor, which is an expander, is connected. If it is used, the ID of the expander is displayed, and if only the coupling device is applied, it is normally displayed as "00", and "ZZZ" indicates the card number for arming / disarming and the number of monitoring area for intrusion / recovery. .

In addition, the interface between the coupling device 100 and the subscriber device or the sensing device is an electrical interface, for example, serial communication is performed through an RS-485 communication cable.

At this time, the coupling device 100 is operated as a master (Master) and connected to the subscriber device or the sensing device is operated as a slave (Slave), it is made by mutual ID call method.

That is, when the master coupling device 100 calls the slave subscriber device or the sensing device at a set interval, for example, 200 ms interval, by the ID call method, the slave side is determined according to the communication protocol determined when its ID is called. Answer in data format.

The protocol in which the master coupling device 100 calls the slave subscriber device or the sensing device is configured and transmitted as shown in FIG. 3.

In addition, if there is upload data to be transmitted to the coupling device 100 which is the master by generating an event on the system of the detector or the expander itself managed by the subscriber device or the sensing device which is an expander, FIGS. Configure and transmit the protocol as shown in (b).

In addition, if an ID call is detected from the joining device when there is no event on the system of the expander itself or a detector managed by the expander device or sensing device, it is uploaded to the expander called with one byte "0x04". Notify that there is no data.

In addition, a download command protocol for transmitting a remote boundary / release command at random from a coupling device 100 that is a master to a subscriber device or a sensing device that is a slave by an ID call method is configured and transmitted as shown in FIG. The expander called according to the download command protocol executes a corresponding command and sends it as one byte "0x07" as a response signal, and configures the execution result protocol for the download command as shown in FIG. 5 (b). Upload and upload.

In addition, in the configuration of FIG. 1, the communication protocol with the card reader 105 is configured such that the control unit 110 in the coupling device sets the state of the equipment and the monitoring area of the coupling device at a set time interval, for example, 200 ms. The data read-on / off is transmitted to the 105 side, and at this time, the card reader unit 105 transmits a boundary / release, a red boundary, a door open, and a door open recovery to a set protocol. If there is no transmission data between the control unit 110 and the card reading unit 105 within a predetermined time period, for example, 20 seconds or more, the state of the watch dog Watch_Dog is set to perform the disconnection check function of the card reading unit 105. send.

The inspection protocol for the card reader 105 is performed as shown in FIG.

In addition, when the potential of the supplied external supply power or emergency battery is lowered below the set threshold value, it detects this and outputs a control code for it, and recovers to normal supply when the potential of the supplied power supply is lowered below the set threshold value. In this case, the control code for it is output.

In addition, it is determined whether the ID information of the card read by the card reader 105 is a registered card to control access to and from the surveillance area, and the signal input through the keypad 101 is bounded by the state of the device. Regardless of the release, if the user wants to go from the inside to the outside of the surveillance area, the guardian will not be guarded.

In addition, as shown in FIG. 2 for communication with the central control room, the "C" tone and the "D tone" set by the dedicated line decoder 400 and the Hand Shake method are transmitted and received at a predetermined period, for example, For example, when the handshake signal is not detected for 90 seconds or more, a disconnection monitoring function for monitoring that a disconnection has occurred between the dedicated line decoder 400 and the coupling device 100 is performed.

In addition, it performs a function of monitoring whether the leased line is recovered in the state that the leased line is disconnected, the event for the leased line is generated by the dedicated decoder (400).

That is, the dedicated line decoder 400 transmits and monitors the "C tone" and "D tone" set by the handshake method at a set cycle while the dedicated line is disconnected, and then disconnects the dedicated line when the handshake signal is detected or an event is generated. The process is judged to have been recovered.

In addition, the ID of the subscriber device and the sensing device is periodically called in a polling manner to the connected subscriber device and the sensing device side. When the event code or response signal is not detected for a predetermined time, for example, 120 seconds, the signal is transmitted to the coupling device side. Perform.

In addition, in the state where a disconnection occurs in the communication line between the connected subscriber device or the sensing device and the coupling device connected as described above, the coupling device periodically disconnects in the process of calling the IDs of the subscriber device and the detection device, which are the expanders, in a polling manner. When a suitable event code or response signal is detected at the subscriber device or the sensing device, the disconnected communication line is detected.

In addition, when the remote boundary command is downloaded (received) from the central controller 800 to the coupling device 100 through the MUX 600, the aerial decoder 500, or the dedicated line decoder 400, the coupling device 100. Receives this alert command by DTMF and transmits the alert command to the subscriber device or the sensing device, which is the expander connected to itself and itself, to enter the alert state for the surveillance zone, and when an event occurs in the surveillance zone, By sending the event generated to the central control unit 800 side through the same protocol so that a quick response can be performed.

For example, when the central controller 800 transmits an airborne boundary command to the airborne remote device 700 with respect to a coupling device or an expander opened by the airborne air, the airborne remote device 700 is connected to the corresponding device 100. Dial the subscriber's phone number set in the call to the coupling device 100, and if the phone is connected to the coupling device 100 according to the ring counter and transmits the alert command received from the central control equipment 800 .

At this time, the coupling device 100 receives the alert command with the DTMF signal, and according to the reception of the alert command, the alert command is executed for the monitoring area with respect to the subscriber device or the sensing device which is the expander connected thereto and the coupling device. When an occurrence of an event is detected in the process of performing a boundary, the code for the event is standardized and uploaded.

In addition, since it is obvious that the aerial boundary is released from the central control equipment 800 by the above-described operation, detailed operation thereof will be omitted.

In addition, when the armed (boundary) mode is set through the registered use card, all the sensors in each surveillance area are set to the armed state to enter a mode of motion monitoring, door open monitoring, etc. In this case, the coupling device 100 The controller 110 detects the card data from the subscriber device or the sensing device which is the card reader 105 or the expander at a set predetermined time, for example, 20 ms intervals, and when the card information is read, the ID of the card to be read is the memory unit. It determines whether the user ID is registered in 107, and performs functions such as setting or releasing to a boundary state, redistribution boundary, and access control.

In addition to the functions described above, when the intruder monitors and monitors the subscriber device and the detection device, which are connected to the coupling device and the expander connected thereto, and sends an event to the central control device 800, a rapid response can be performed. Recovery of events generated in the monitoring area where functions and events are detected, Assignment and setting of numbers and IDs for subscriber and detection devices, which are connected to the coupling device, and ensuring user access time in alert mode Set up the delay time, whether to use alarm sound and how to generate it.

In addition to the above functions, various functions are further included, and various functions that can be applied to an unmanned surveillance system are also included in the functional scope of the present invention.

As described above, the present invention combines a plurality of subscriber devices and sensing devices to extend communication with the central control room through one dedicated line / air line, thereby simplifying wiring work using a single communication line, and Cost savings from the use of telecommunications lines are provided.

In addition, the operation of various boundaries and releases can be quickly and accurately transmitted to the central control room, so that all operations of the operator can be tracked afterwards. The system is automatically switched to the public line so that the situation can be received by the central control room so that the control work can be performed in any environment, providing reliability and stability.

1 is a block diagram illustrating a coupling device for accommodating a plurality of subscriber devices according to the present invention.

Figure 2 is a preliminary diagram of an unmanned guard and access control system connected to the coupling device for receiving a plurality of subscriber devices according to the present invention.

4 to 6 are diagrams illustrating a communication protocol structure of a coupling device accommodating a plurality of subscriber devices according to the present invention.

Claims (15)

A power supply unit supplying commercial power as an operating power required for each load element and including an auxiliary battery having a charge / discharge function; A keypad unit including numeric keys and function keys, for setting ID registration and conditions of various operation modes for the connected user card; A detector for detecting a signal of a sensor installed in a surveillance area to detect whether an intruder is generated in the surveillance area; A transmission / reception unit connected to the central control room through a dedicated line and an aerial line to transmit and receive various data for unattended monitoring; A card reader which reads user information contained in a card; A display unit which displays information on the general operation and the registration process of the card possessed by the user; Registration of user card, access control for non-registered card user, power monitoring, power recovery detection, disconnection and recovery detection of leased line, boundary and release by registered user card, red boundary, intruder detection in monitoring area, occurrence in monitoring area Recovery of abnormal status, monitoring area setting, emergency monitoring area setting, delayed monitoring area setting, delayed entry and exit of the monitoring area, alarm sending or not setting, alarm sending time setting, subscriber number setting function, In the unmanned monitoring system including a control unit for setting whether to use, setting the number of use of the expander, forced boundary setting and release, card reader disconnection and recovery detection, trunk line switching detection and trunk line check function, An interface unit which is installed in a plurality of monitoring areas and connects a predetermined number or more of expansion devices including a subscriber device and a sensing device, and interfaces the downloaded command and monitoring information of the corresponding area by serial communication; It further includes a memory means for registering and storing registration values for subscriber devices and detection devices installed in the plurality of monitoring areas as expansion devices and IDs of user cards assigned to each subscriber device and detection device. The transceiver unit connects a dedicated line / public line to a transformer for voltageless DTMF communication, and registers information of a user card and a subscriber device and a sensing device installed in a plurality of monitoring areas as expansion devices. The controller responds with the set "D tone" when there is no event data to be uploaded to the central controller when the "C tone" set in the dedicated line decoder is received during communication using the dedicated line. To control the handshake type communication to upload and configure in a predetermined protocol format, At the time of communication using the aerial line, it attempts to connect the call to the designated telephone number to the aerial decoder, and when the connection with the aerial decoder is confirmed, it transmits the set first beep and the second beep as a handshake signal, and uploads the event data to be uploaded within the set time Is transmitted to the aerial decoder, and if the following 'DTMF tone' signal is not detected from the aerial decoder, it transmits the data reception end signal "keys off tone" and controls the communication of the handshake and kiss-off method. Coupling device for receiving a plurality of subscriber devices, characterized in that. delete delete delete delete delete delete delete delete delete delete delete delete The method of claim 1, The event data protocol uploaded to the central controller by handshake communication of the controller is configured in the form of "UUUU 18 E (R) CCC EE ZZZ", and the protocol downloaded from the central controller is in the format of "OE DD CC". Is composed, In the above, "UUUU" is a user ID, "18" is an identifier of CONTACT_ID FORMAT, "E (R)" means the occurrence of the event or recovery of the generated event, "CCC" is the generated event code, "EE" means the ID of the expander, "ZZZ" means the card number when arming / disarming, the number of monitoring area when invading / recovering, "OE" means the command of the download data, and "DD". "CC" means the equipment number, "CC" is a coupling device for accommodating a plurality of subscriber devices, characterized in that means to distinguish the boundary / release. delete