KR100222425B1 - Remote information processing system - Google Patents

Abstract

In a remote information processing system using a subscriber line connecting only a communication and a subscriber phone, a coupler connected to a plurality of sensors and connected in parallel with the subscriber line, periodically checking the state of the coupler or outputting a work command message received. Multiplexers are connected between line multiplexing devices for efficient alarm handling. For this purpose, the multiplexer is mechanically coupled to the distributor in the communication network, and the line multiple access device drives the multiplexer to sequentially select the subscriber line. In addition, the line multiple access device controls the multiplexer at regular intervals to sequentially select the subscriber line, and checks the state of the selected subscriber line. In case of the hook-on state, the coupler state is checked using the tone of the audible band, and the hook-off state. At the time, it analyzes the type of non-audible frequency that is received and analyzes whether there are any abnormalities. In the remote information processing, the state is first checked in the same manner as above, and the message is processed in the normal case.

Description

Remote information processing system

1 is a block diagram of a conventional remote information processing system.

2 is a block diagram of a remote information processing system according to the present invention.

3 is a configuration diagram of a line multiple connection device in FIG.

4 is a configuration diagram of a coupler in FIG.

5 is a diagram of a processing flow of remote information in accordance with the present invention.

6 is a module configuration diagram of a remote information processing system according to the present invention.

7 is a process flow diagram of a line multiple access device.

8 is a flow chart of the coupler.

9 (a) to 9 (h) are processing procedures of remote information according to the present invention.

* Explanation of symbols for main parts of the drawings

200: communication network 201: distributor

202: multiplexer 203: line multiple access device

204: Coupler 208: Computer Center

209: Utility company 212: User terminal

The present invention relates to a remote information processing system, and more particularly, to a system that can remotely process information in each subscriber's house using a public communication network.

1 is a conventional remote information processing system, showing the configuration of US Pat. No. 4,442,320, co-invented by Rolland T. James and Ronald J. Chebra and patented on April 19, 1984. Looking at the configuration of the patent, 1A (FIG1) of Fig. 1 is a telephone line network 10, subscriber telephones (11, 12, 13), subscriber telephone lines (14, 15, 16), local exchange 17 and subscribers Scanners 18 which are placed in a position to which lines 14, 15 and 16 can be easily connected and lines 19, 20 and 21 which represent the connection between the scanner 18 and subscriber lines 14, 15 and 16 And a system configuration diagram of subscriber terminal units 22, 23, and 24 connected in parallel to subscriber lines 14, 15, and 16, and FIG. 1B is an internal configuration diagram of the scanner 18. 1C is an internal configuration diagram of subscriber terminal units 22-24 which are different at different times with the lines 19, 20, 21 connected to the scanner 18 as an inside.

Referring to the operation of the conventional remote information processing system having the above configuration, the low tone generator 39 of each subscriber terminal unit 22 is configured to generate frequencies below the audible frequency range. At this time, when the signal sources 41, 42, and 43 of the subscriber terminal unit 22 are not in the alarming state, the low tone generator 39 is controlled by the signal processing unit 40 so that the subscriber line 14 and the scanner 18 are controlled. The low-tone is transmitted to the line 19 connected to the apparatus so that the scanner 18 can detect that no alarm has occurred. When the signal sources 41, 42, and 43 are in an alarming state, the low tone generator 39 is controlled by the signal processing unit 40 to low the line 19 connected to the subscriber line 14 and the scanner 18. By not transmitting a tone, the scanner 18 can detect that an alarm has occurred. The following four cases that may occur between the scanner 18 and the subscriber terminal unit 22 are described.

First, when the subscriber telephone is in the on-hook state and no alarm occurs, the scanner 18 controls the multiplexer 26 to detect the on-hook state of the subscriber line 19 through the filter 32, and the subscriber terminal unit ( The multiplexer 25 is controlled by 22 to periodically transmit the FSK modem signal through the modulator 30. When the subscriber terminal unit 22 transmits an FSK modem signal through the modulator 38 when no alarm occurs, the modulator 29 of the scanner 18 detects the FSK modem signal and causes the system controller 31 to detect the FSK modem signal. You can see that no alarm occurred at.

Secondly, when the subscriber telephone is in the on hook state and an alarm occurs, the scanner 18 controls the multiplexer 26 to detect the on hook state of the subscriber line 19 through the filter 32 and the subscriber terminal unit 22. The multiplexer 25 is controlled to transmit the FSK modem signal through the modulator 30 periodically. When the subscriber station unit 22 transmits the FSK modem signal according to the alarm occurrence state through the modulator 38, the modulator 29 of the scanner 18 detects the FSK modem signal and the system controller 31 detects the FSK modem signal. It can be seen that an alarm has occurred.

Third, if the subscriber phone is off hooked and no alarm occurs, the scanner 18 controls the multiplexer 26 to detect the off hook state of the subscriber line 19 through the filter 32 and the subscriber. Instead of transmitting the FSK modem signal to the terminal unit 22 through the modulator 30, the low tone from the subscriber terminal unit 22 is controlled by controlling the multiplexer 27. When the subscriber terminal unit 22 transmits a low tone by controlling the low tone generator 39 in the signal processing unit 40 in a state where no alarm occurs, the low tone detector is passed through the filter 33 of the scanner 18. By detecting the low tone in 35) it can be seen that no alarm occurs in the system controller 31.

Fourth, when the subscriber telephone is in the off hook state and an alarm occurs, the scanner 18 controls the multiplexer 26 to detect the off hook state of the subscriber line 19 through the filter 32 and the subscriber terminal unit 22. The multiplexer 27 detects the low tone from the subscriber terminal unit 22 without transmitting the FSK modem signal through the modulator 30. The subscriber terminal unit 22 controls the low tone generator 39 in the signal processing unit 40 to detect a state in which an alarm has occurred, and if the low tone is not transmitted, the low tone detector 35 passes through the filter 33 of the scanner 18. Since the low tone is not detected by the control unit, it is determined that an alarm has occurred in the system controller 31. If it is determined that the alarm has occurred, the multiplexer 25 is controlled by the subscriber terminal unit 22 to transmit the FSK modem signal through the modulator 30, and the subscriber terminal unit 22 modulates the FSK modem signal by the modulator 38. By transmitting through), the demodulator 29 of the scanner 18 detects the FSK modem signal, indicating that an alarm has occurred in the system controller 31.

However, in the conventional remote information processing system as described above, when the telephone is in the off-hook state and an alarm occurs, alarm information is obtained through FSK modem communication between the scanner 18 and the subscriber terminal unit 22. If the call is in progress, the existing call is affected. When the subscriber's phone is in the on-hook state, when an alarm occurs or does not occur, and when the phone is in the off-hook state and an alarm occurs, the scanning time of the scanner 18 is increased. It takes a lot. In addition, as shown in the system configuration of FIG. 1, the scanner 18 and the subscriber lines 14, 15, and 16 are used to periodically scan the state of the subscriber terminal units 22, 23, and 24. If the connection line between (19, 20, 21) accommodates a large number of subscribers, a lot of line connection is required, so installation is very difficult and may cause a price increase, and existing telephone lines (14, 15, 16) ), As well as the management of the connection line (19, 20, 21) is also required, which brings a lot of difficulties in terms of operation. In addition, since the scanner 18 has built-in time primary, secondary, and tertiary multiplexers 25, 26, and 27 for selecting different connections at different times in the connection lines 19, 20, and 21, In case of accommodating subscribers, if multiplexers 25, 26, and 27 are built in multiplexing ratio in close relationship with the efficiency of the scanner 18, it may cause a price increase and multiplexers 25, 26, and 27 may be used. If the current structure does not have a built-in structure, the multiplexing ratio is increased, and the efficiency of the scanner 18 is lowered.

Accordingly, an object of the present invention is to connect a subscriber line with a remote information processing system using a distributor of the communication network in a remote information processing system using a communication network, and to control a multiplexer for multiple access of the subscriber lines to control various work information and The present invention provides an apparatus and method for scanning the presence or absence of security information and quickly notifying processing information to a higher layer.

Another object of the present invention is to provide an apparatus and method capable of processing alarm information regardless of a call state of a subscriber telephone in a remote information processing system using a communication network.

It is another object of the present invention to provide a method for improving the speed of remote information processing by scanning the state of the subscriber side as soon as the subscriber telephone is in the on-hook state.

Still another object of the present invention is to provide an apparatus and method capable of processing various information on the subscriber side in a remote information processing system.

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

First, FIG. 2 is an overall system diagram of the present invention. The communication network 200 may be configured as a telephone network or an interphone network as a conventional voice communication network, and is used for connecting a line to a subscriber (telephone or interphone) 205. The multiplexer 202 capable of accessing the line to the distributor 201 is mechanically coupled, and the coupler 204 which is a terminal of the present invention is connected in parallel with the subscriber 205 connected to the subscriber line 206. do. In this case, the multiplexer 202 is mechanically coupled to the distributor 201 so that it is easy to connect with the subscriber line 206 so that the remote information processing system can be easily installed and the system can be flexibly expanded as the number of subscribers increases. There are advantages to it. The coupler 204 is connected to the user terminal 212 in charge of the actual service, the user terminal 212 may be a sensor such as an alarm terminal, meter terminal, medical terminal, traffic terminal, etc. according to the service type. The line multiplexer 203 controls the multiplexer 202 coupled with the distributor 201 and accesses the subscriber line 206 to communicate with the coupler 204. The computer center 208 transmits a work command to the line multiplexer 203 and collects the data and information that the line multiplexer 203 periodically scans the coupler 204. The utility company 209 sends the work instruction data to the computer center 208, processes and services the data received from the computer center 208.

Operation will be described in detail with reference to FIG. 2 according to the above configuration.

First, when there is no request for data (eg, reading value, etc.) of the user terminal 212 requested by the utility company 209, the line multiple access device 203 controls the multiplexer 202 to sequentially connect subscriber lines. The furnace 206 is accessed to collect the state of the subscriber line 206, the state of the coupler 204, the alarm generation state of the user terminal 212, and the type of alarm. At this time, the line multiple access device 203 scans the state of the coupler 204 connected in parallel to the subscriber preference 206 in a state in which the subscriber line 206 is not in use and does not interfere with the subscriber's call. When an abnormal condition occurs, the received data is analyzed to confirm the type of the abnormal condition, and then a message is notified to the computer center 208, and the computer center 208 notifies the public utility company 209 to the corresponding message. Run the service. The computer center 208 may be present in the same building as the line multiple access device 203 or may be located at a long distance. Therefore, the line multiple access device 203 may have a means for communicating with the computer center 208 for a general communication line and a modulation and demodulation device for a long distance.

Secondly, when the public utility company 209, which services information such as meter reading, requests the data of the user terminal 212, it sends a work instruction message to the computer center 208. The computer center 208 analyzes the received work command message and applies it to the corresponding line multiple access device 203. Then, the line multiple access device 203 controls the multiplexer 202 to access the corresponding subscriber lines, and determines whether to use the selected subscriber line 206 at the time of access, and the subscriber line 206 is in use. If not, the communication of the coupler 204 is performed through the selected subscriber line 206 to receive the data of the user terminal 212 and transmit the received information to the computer center 208. The computer center 208 then notifies the utility company 209 of the received data to perform the service.

FIG. 3 (a) is a block diagram of the line multiplexing device 203 and the multiplexer 202 according to the present invention, and FIG. 3 (b) is a specific view of the line multiplexing device 203. FIG.

First, referring to the configuration of the multiplexer 202, the relays 312 are connected 1: 1 between the subscriber line 206 of the communication network 200 and the line 207 of the line multiple access device 203, respectively. The connection with the subscriber line 206 is controlled by the scan control signal. The multiplexer control unit 311 sequentially outputs scan control signals for scanning the subscriber line 206 by the multiplexing control signal of the line multiple access device 203.

Second, referring to the configuration of the line multiplexing device 203, the microcontroller 301 controls the overall operation of the line multiplexing device 203. The line state detector 306 is connected between the furnace 207 and the microcontroller 301. The line detection unit 306 detects a hook on / off state of the line 207 of the communication network 200 and outputs it to the microcontroller 301. An audible frequency generator 302 is connected between the line 207 and the microcontroller 301. When the audible frequency generator 302 is not using the subscriber line 206, the line multiple access device 203 accesses the coupler 204 to perform various tasks such as meter reading, medical treatment or control. A signal to be output is output to the line 207. An audible frequency detector 303 is connected between the line 207 and the microcontroller 301. The audible frequency detector 303 receives a response from the coupler 204 to the output audible frequency signal and outputs the response to the microcontroller 301. The coupler communication unit 305 is a modulation / demodulation device MODEM that communicates with the coupler 204 when necessary, and is controlled by the microcontroller 301. An inaudible frequency detector 304 is connected between the line 207 and the microcontroller 301. The inaudible frequency detector 304 detects an inaudible frequency signal received from the coupler 204 when the handset 205 of the subscriber connected to the subscriber line 206 via the line 207 is in use. do. The multiplexer driver 306 is connected between the microcontroller 301 and the multiplexer controller 311. The multiplexer driver 306 allows the multiplexer controller 311 to control the relay 312. The computer communication unit 210 is connected to the computer center 208 and is responsible for communication between the line multiple access device 203 and the computer center 208.

In the above configuration, the audible frequency detector 303 and the inaudible frequency detector 304 are implemented by the in-phase signal synthesizer MX, the clock generator CG, and the tone detector TR shown in FIG. 3 (b). In this configuration, the clock generator CG generates a first clock for detecting an audible frequency and a second clock for detecting an inaudible frequency by the tone selection signal of the microcontroller 301. In addition, the frequency signal of the same phase received through the line 207 is synthesized in the in-phase signal synthesizer (MX) ground and ground is applied to the tone detector (TR). Then, the tone detector TR receives the frequency signal and converts the audible tone data or the inaudible tone data by the first clock or the second clock and outputs the audible tone data to the microcontroller 301.

4 is a block diagram of the coupler 204 according to the present invention. FIG. 4 (a) is a block diagram of the coupler 204 and FIG. 3 (b) is a concrete circuit diagram of the coupler 204. Looking at the configuration of the coupler 204, the microcontroller 401 controls the overall operation of the coupler 204. The line detector 406 is connected between the subscriber line 206 and the microcontroller 401. The line detector 406 detects a hook on / off state of the subscriber line 206 and outputs a microcontroller 401. An audible frequency detector 403 is connected between the subscriber line 206 and the microcontroller 401. The audible frequency detector 403 detects an audible frequency transmitted from the line multiple access device 203 when not using the subscriber line 206, converts the audible frequency into tone data, and transmits the tone data to the microcontroller 401. do. An audible frequency generator 404 is connected between the subscriber line 206 and the microcontroller 401. The audible frequency generator 404 converts the audible tone data of the microcontroller 401 in response to the detected audible frequency into an audible frequency and outputs the audible frequency to the subscriber line 206. An inaudible frequency generator 405 is connected between the subscriber line 206 and the microcontroller 401. The inaudible frequency generator 405 responds to the alarm under the control of the microcontroller 401 when the microcontroller 401 detects an abnormal state or alarm information while the subscriber line 206 is used. Generate an inaudible frequency to be transmitted to the subscriber line. The line multiple access device communication unit 402 is connected between the subscriber line 206 and the microcontroller 401. The line multiple access device communication unit 402 modulates and outputs data to the subscriber line 206 under the control of the microprocessor 401 or demodulates data received from the subscriber line 206 to control the micro. Output to processor 401.

In this configuration, the audible frequency generator 404 and the inaudible frequency generator 405 generate the tone generator TG, the clock generator CG, the low pass filter LPF, and the in-phase signal shown in FIG. 4 (b). It is implemented as a part (TC). In this configuration, the clock generator CG generates a first clock for generating an audible frequency and a second clock for generating an inaudible frequency by the tone select signal of the microcontroller 401. Then, the tone generator TG receives the tone data output from the microcontroller 401, generates an audible frequency signal when receiving the first clock, and generates an inaudible frequency when receiving the second clock. The low pass filter LPF is grounded to the ground and low-passes the output of the tone generator TG. The in-phase signal generator TC matches the two lines of the subscriber line 206 and outputs a frequency signal in phase to the subscriber line 206.

5 shows the main internal software data flow diagram controlled by the line multiple access device 203 according to the present invention. The queue (table) 503 stores all data received from the computer center 208. A queue (table) read from and written to / O. The queue (table) 503 is a communication channel (a) 501 and communication channel (b) 502 is duplexed to collect and record the data received in one channel even if an error occurs in one channel It is supposed to. The data received from the computer center 208 is analyzed and recorded in the Jdattb 504 in the case of the job command data so that the line multiple access device 203 can perform various operations. The Jdattb table 504 may be a plurality of lines so that the line multiple access device 203 can perform the most efficiently. The Jdattb table 504 may be a normal or the message transmitted from the line multiple access device 203 to the computer center 208. In the case of abnormally received data, it is recorded in the Clrbox 505 so that the computer center 208 can determine whether the message is normally received or abnormally. At this time, when abnormally received, the line multiple access device 203 retransmits the previous transmission message to the computer center 208.

The job command data recorded in the Jdattb 504 manages each job most efficiently according to the multiplexing ratio of the coupler 204 accommodated in the line multiple access device 203 in order to substantially perform each job. It is recorded in each of several Lcujtb (506), and regardless of the performance of the operation, but if the line multiple connection device 203 is the mounting information of the coupler 204 to accommodate Porttb (507) corresponding to the corresponding multiplexing port Record and keep on. In this case, when the line multiple access device 203 periodically scans the state of several couplers 204, only the mounted coupler 204 can be scanned to increase its efficiency, and if the computer center 208 In the case of the message corresponding to the coupler 204 which is not mounted as a result of analyzing the work command message received from), the computer center 208 informs the computer center 208 that the coupler 204 that requested the work result is not mounted. Do it. The line multiple access device 203 analyzes the received message and performs the corresponding work, and the work result information normally performed is recorded in the Rslttq 509, and if it is not normally performed (coupler 204 or An abnormal state occurrence of the holding terminal 212 or an alarm occurrence state of the user terminal 212 is recorded as Almtb 508.

In addition, the line multiple access device 203 periodically scans a plurality of couplers 204 to generate abnormal state of the coupler 204 or the user terminal 212 or alarm occurrence state information of the user terminal 212. Also, Almtb Recorded at 508 so that computer center 208 can be notified.

The line multiple connection device 203 generates the abnormal state of the coupler 204 or the user terminal 212 or periodically checks the contents of the Almtb 508 in which the alarm occurrence state information of the user terminal 212 is recorded. If there is information, it is recorded by Almtxq 510 and notified to the computer center 208. When receiving a message from the computer center 208, when no error occurs, the computer center 208 receives the message normally. Ankbox 511 is recorded, and information to be notified is recorded, and information to be notified to the computer center 208 of abnormal reception when an error occurs is recorded.

The line multiple access device 203 periodically performs the work as shown in the detailed operating room name of FIG. 2 to periodically check the contents of the Rslttq 509 in which the work result information normally recorded is recorded and transmitted to the computer center 208. If there is normal work result information, it is transmitted through communication channel (a) or (b). The computer center 208 checks the contents of the Almtxq 510 in which the abnormal state occurrence of the coupler 204 or the user terminal 212 or the alarm occurrence state information of the user terminal 212 is recorded. To send). When there is information to be sent to the computer center 208 or when a message from the computer center 208 is received or when no error has occurred, the information to notify the computer center 208 that the reception has been normally received and an error When it occurs, it checks the contents of the Ankbox 511, which records information to inform the computer center 208 that it has received abnormally, and checks the contents of the communication channel with the computer center 208 when there is information to be transmitted to the computer center 208. a) or communication channel (b).

6 is a diagram illustrating the configuration of main internal software modules controlled by the line multiplexer 203. As shown in FIG.

The system start-up module 600 is a module that starts up the system by performing a processing process for the first time at system power-on reset or restart. The system start module 600 designates a stack pointer to be used in the system by preventing an interrupt that occurs initially. Initializes memory, I / O ports, and the like so that an interrupt can be generated, and then transfers the control right to the system job scheduling module 602 that manages the performance of various operations of the line multiple access device 203. . The timer-related control task module 601 controls timer counters of various timer-related tables based on timer interrupts of a certain period set by the system to provide all services related to timers. In order to overcome the trap state by resetting the microcontroller 305 of the connecting device 203, checks are performed at regular intervals.

The I / O data processing operation module 603 processes the operation command data reception processing from the computer center 208 and the data transmission / reception with the coupler 204 by controlling the I / O port. The control unit 602 receives the control right from the system start module 600 and manages and schedules various tasks of the line multiple access device 203.

The module 604 is a module for analyzing a message received from the computer center 208. The module 604 analyzes the received message by controlling the queue table 503 in which data received from the computer center 208 is recorded. In the case of work command data, the data is recorded in the Jdattb 504 so that the line multiple access device 203 can perform various operations, and the message transmitted from the line multiple access device 203 to the computer center 208 is normal. Alternatively, in the case of abnormal reception data, it is recorded in the Clrbox 505 to determine whether the computer center 208 received the message normally or abnormally. In case of abnormal reception, the line multiple access device 203 Causes the computer center 208 to resend the immediately preceding transmission message.

The modem control processing module 605 of the remote site has a modulation / demodulation device for communication between the line multiple access device 203 and the computer center 208 when the distance between the computer center 208 and the line multiple access device 203 is far. When necessary, it is possible to connect and communicate with a modem line with the computer center 208, perform an initialization of a modem, set up a modem, check and control the loss of a carrier on a set modem communication line, and the like.

The module 606 analyzes the message received from the computer center 208 in the module 604, and if the received data is work instruction data, the line multiple access device 203 can perform various operations. In order to check whether the data is recorded in the Jdattb 504, and to perform the respective tasks substantially, the multiple managing apparatuses are most efficiently managed according to the multiplexing ratio of the coupler 204 accommodated in the line multiplexer 203. Are recorded in the Lcujtb 506, respectively. At this time, the work may be performed, but in the case of mounting information of the coupler 204 to be accommodated by the line multiplexing device 203, it is recorded and stored in the Porttb 507 corresponding to the multiplexing port, and the line multiplexing device ( When 203 periodically scans the state of several couplers 204, the received message is written to the work table, allowing only the mounted coupler 204 to be scanned.

The various jobs and the subscriber scanning job processing module 607 communicate with the coupler 204 by using the Lcujtb 506 in which data for overall job execution is recorded, and Rslttq ( 509 is a preparatory operation for recording to the Almtb (508) in the case of not performing normally (the abnormal state of the coupler 204 or the user terminal 212 or the alarm occurrence state of the user terminal 212) In preparation, the line multiple connection device 203 periodically scans the plurality of couplers 204 to generate an abnormal state of the coupler 204 or the user terminal 212 or an alarm occurrence state of the user terminal 212. Obtaining the information or the like, the module 608 performs a preparation step for recording in the Almtb 508.

In addition, Lcujtb (506) and Almtb (508), which store the work result by the work command from the computer center 208 and the result information of periodically scanning the plurality of couplers 204 in the line multiple access device 203, are stored. In the case where the result information exists to transmit the contents of the information to the computer center 208, the operation is performed to be recorded by the Almtxq 510 and the Rslttq 509 to be transmitted to the computer center 208.

In the module 609 which is responsible for sending the job result information and the scanning result information to the computer centers 208 and 208, the Rslttq 509 in which the normal job result information by the work command from the computer center 208 is recorded is recorded. ) And the case where it was not normally performed, and the result of scanning by the line multiple connection device 203 (the abnormal state of the coupler 204 or the user terminal 212 or the alarm occurrence state of the user terminal 212) is recorded. If there is information to be sent to the computer center 208 by checking the contents of the Almtxq 510, or if a work instruction message is received from the computer center 208, when the error has not occurred, it is received normally. It transmits to the computer center 208. If there is an error, the content of the Ankbox 511 is recorded in which information to be notified to the computer center 208 is recorded in order to request retransmission to the computer center 208. It serves to transmit on the communication channel (b).

In the module 610 in charge of the processing of the message transmitted using the communication channel (a) or the communication channel (b) to the computer center 208, the module 609 scans the work results and the coupler 204 After the result information is transmitted to the computer center 208, normal processing for normal or abnormal reception response from the expected computer center 208 or retransmission processing by retransmission processing timeout is processed.

In the system diagnosis and communication channel management processing module 611, when the subscriber telephone is hooked off or rings while the line multiple access device 203 and the coupler 204 are performing work, the system diagnosis and communication channel management processing module 611 immediately contacts the coupler 204 according to the call priority principle. In order to interrupt the communication, the hook line or the ring state of the subscriber line 313 is sensed. In addition, by periodically checking for an abnormality of the communication channel (a) or the communication channel (b) with the computer center 208, when an abnormal state occurs in one channel, it can be switched to another channel. In addition, it periodically checks whether an error has occurred in the trap generation or the timer interrupt of the timer interrupt processing module, and restarts in software when the error occurs.

The on / offline test and MMC (Man Machine Communication) processing module 612 connects an RS-232C cable to the line multiplexer 203 for maintenance at the line multiplexer 203 and uses a terminal. It performs all the functions by receiving key data from the terminal and performing various functions through the analysis.

The submodule among the submodule and the program user memory 613 is a module that collects various subroutines used in the line multiplexing device 203, and is called and used as needed in each module, and the program user memory is a line multiplexing device. It means what is arbitrarily defined in (203).

FIG. 7 illustrates a process in which the line multiplexer 203 communicates with the coupler 204 by controlling the multiplexer 202.

FIG. 8 illustrates a process of communicating with the line multiplexing device 203 at the time when the coupler 204 is scanned.

9 is a diagram showing the progress of the data protocol. FIG. 9 (a) is a case where the subscriber phone 205 is not in a busy state (ON-HOOK state) and the public interest in the state in which the coupler 204 operates normally. The process of performing work orders by company 209 is shown.

9 (b) shows the process of the work order by the utility company 209 when the subscriber telephone 205 is not in a busy state (ON-HOOK state) and the coupler 204 is abnormal.

9 (c) shows a process of executing a work command by the utility company 209 while the subscriber telephone 205 is in a busy state (OFF-HOOK) and the coupler 204 is normally operated.

9 (d) shows a process of executing a work command by the utility company 209 while the subscriber telephone 205 is in a busy state (OFF-HOOK) and the coupler 204 is abnormally operated. .

9 (e) shows that the subscriber phone 205 is not in a busy state (ON-HOOK) and the coupler 204 is scanned by the line multiple access device 203 when the coupler 204 is in a normal state. It is shown.

9 (f) shows that the line multiple access device 203 scans the coupler 204 when the subscriber telephone 205 is not in a busy state (ON-HOOK) and the coupler 204 is abnormal. The process of doing so is shown.

9 (g) shows that the subscriber line 205 is in a busy state (OFF-HOOK) and the line multiple access device 203 scans the coupler 204 when the coupler 204 is in a normal state. The process is shown.

9 (h) shows that the line multiple access device 203 scans the coupler 204 when the subscriber telephone 205 is in a busy state (ON-HOOK) and the coupler 204 is abnormal. The process is shown.

FIG. 10 is a form diagram of a message transmitted and received in the present invention, and FIG. 10 (a) is a diagram illustrating a message form of a work command generated by the utility company 209 and transmitted to the user terminal 212.

FIG. 10 (b) is a form diagram of a work result message generated from the user terminal 212 and transmitted to the public utility company 209 when the result of receiving and processing a work command message as shown in FIG. 10 (a) is successful. .

FIG. 10 (c) is a form diagram of a work result message generated by the user terminal 212 and transmitted to the utility company 209 when a result of receiving and processing a work command message as shown in FIG. 10 (a) fails. . FIG. 10 (c) is a message transmitted when a fault occurs in the user terminal 212 by receiving a work command message as shown in FIG. 10 (a).

The abbreviations described in FIGS. 10 (a) to 10 (d) have the following functions.

* (STX (Start of TeXt): Code indicating the start of the message content.

* Number of CHAR: This is the number of data of the message to be transmitted, which is composed of '0'-'9' and shows the number of data from the field after the number of CHAR to before ETX.

* n: Code indicating work order and work success message from utility company.

* P: Code indicating that the Fault occurs by the periodic diagnosis of the USER terminal or the periodic diagnosis of the USER terminal of the combined device.

* GID (Group ID): A code for each service type, which is one of the uppercase letters 'A'-'Z'.

* CID (Company ID): Service company code, which is one of the uppercase letters 'A'-'Z'.

* TELNO (TELephone NO): A subscriber's telephone number consisting of a combination of '0'-'9'.

* NETN (NETwork NO): Network No. to which the coupler accommodated in the line multiple access device belongs.

* USERPN: Port No. of the USER terminal accommodated by the coupler.

* USERID: A unique ID of the USER terminal, which is a 7 byte value composed of a combination of '0'-'9'.

* USI (User Service Identification): Service code of utility company. It has a value of 30H-7FH.

* FID (Fault ID): A code that indicates the cause of a job failure, up to 30H-7FH.

* DATA: Unique command information to be executed in USER terminal.

* ETX (End of TeXt): A code that indicates the end of the message content.

* BCC (Block Check Code): Exclusive_OR value of the data from the next character except ETX to ETX.

Referring to the operation of the remote information processing system of the present invention based on the above-described configuration, first, the operation of the line multiple access device 203 and the coupler 204 will be described.

When the line multiple access device 203 does not perform various tasks such as meter reading, medical treatment, or control, the microcontroller 301 first performs a scanning operation by controlling the multiplexer controller 311. The multiplexer controller When the 311 sequentially controls the relay 312, the subscriber lines 206 and 207 are sequentially connected. Then, the microcontroller 301 determines whether the line 207 is used through the line state detection unit 306. If it is not in use, the microcontroller 301 controls the audible frequency generator 402 to contact the coupler 204. Transmit an audible frequency (a).

When the coupler 204 receives the audible frequency a from the line multiple access device, if it is in a normal state, the coupler 204 transmits the audible frequency b to the line multiple access device 203, and the line multiple access device 203 If the microcontroller 301 detects this through the audible frequency detector 303, the subscriber's state is determined to be normal. However, when an abnormal state occurs in the coupler 204 or an alarm occurs, the coupler 204 receives the audible frequency a from the line multiple access device 203, and multiplies the audible frequency c by the line. After the transmission to the connecting device 203 for a predetermined time, preparation for communication with the line multiplexing device 203 is made. Then, when the micro-controller 301 detects the audible frequency c through the audible frequency detector 303, the line multiple access device 203 controls the coupler communication unit 305 to provide an abnormal state type to the coupler 204. Inquiry, and receives the result through the coupler communication unit 305. However, if the coupler 204 does not wait for a predetermined time for the response to the audible frequency a for the status inquiry from the line multiple access device 203, the coupler 204 is defective or the user side subscriber line It is determined in the disconnected state of 206.

If the user side subscriber line 206 is in use, the coupler 204 determines the type of abnormal state and the alarm state of the coupler 204 and whether it is in a normal state at the moment of detecting the use state through the line state detecting unit 306. , The non-audible frequency corresponding to the normal or non-normal state according to the judgment result (up to 15 kinds of non-audible frequency (a) in normal state and non-audible frequency (b), (c), ... in normal state) Is transmitted to the line multiple access device 203. Then, the line multiple access device 203 detects the inaudible frequency received by the subscriber line 206 through the non-audible frequency detector 304 and outputs it to the microcontroller 301. In this case, the microcontroller 301 may determine whether the abnormal state and the alarm state of the coupler 204 are normal and whether they are in a normal state without affecting the subscriber even when the subscriber line 206 is in use. If the non-audible frequency from the coupler 204 does not wait for a predetermined time, it is determined that the coupler 204 is defective or the user side subscriber line 206 is disconnected.

In addition, when the work command message as shown in FIG. 10 (a) is sent from the utility company 209, and the line multiple access device 203 attempts to perform various tasks such as meter reading, medical treatment, or control, the line state detection unit ( The state of the subscriber line 206 is determined through 306. At this time, if it is in use, the reception of the non-audible frequency corresponding to the normal or non-normal state transmitted from the coupler 204 is checked, and if it is not received within a certain time, the failure of the coupler 204 or the user side of the subscriber line 206 Judging from the disconnection status. If the non-audible frequency (a) is received to indicate that it is in a normal state, it should be retried for three times to perform various tasks such as meter reading, medical treatment, or control when it is not in use. If any one of the inaudible frequencies (b), (c), ... is received, it is determined that it is in the non-normal state so that it can be dealt with.

However, if the subscriber line 206 is not in use, the line multiple access device 203 may generate an audible frequency (d) that represents data transmission for performing various tasks such as meter reading, medical treatment or control. Transmit to the coupler 204. Then, the coupler 204 analyzes this, and when an abnormal state occurs or the alarm occurs in the coupler 204 as described above, the audible frequency c is transmitted to notify the line multiple access device 203 of the state. And prepare for communication with the line multiple access device 203. Then, when the microcontroller 301 detects the audible frequency C through the audible frequency detector 303 in the line multiple access device 203, the coupler communication unit 305 is controlled to be an abnormal state with the coupler 204. The type is inquired and the result is received through the coupler communication unit 305. At this time, if the coupler 204 does not wait for a predetermined time for the response to the audible frequency a from the line multiple access device 203, the coupler 204 may be defective or the user side line 206 may be disconnected. To judge.

If it is in a normal state, the audible frequency b is transmitted for a predetermined time, and the line multiple access device 203 receives the audible frequency b through the audible frequency detector 303 to determine that it is in a normal state. Then, the coupler communication port 205 for data transmission for performing various tasks such as meter reading, medical treatment, or control is controlled to transmit data to be requested or data to be transmitted to the coupler 204. In this case, when data is requested from the coupler 204, a corresponding result is received through the coupler communication unit 305, and the coupler 204 is connected to the audio frequency d from the line multiple access device 203. If the response does not wait for a predetermined time, the coupler 204 is notified or the user line 206 is disconnected.

As described above, when the subscriber line 206 is in the on-hook state, the line multiple connection device 203 uses the audible frequency (a) of the status statement to hear the state of the coupler 204. Judging by (b) and (c), in the case of an abnormal state occurrence state (in case of an audible frequency (c)), the result information is obtained by modem communication between the line multiple access device 203 and the coupler 204. However, when the subscriber line 206 is in the off hook state, the normal or abnormal state is determined by the non-audible frequencies (a), (b), (c), ... from the coupler 204. In addition, when the subscriber line 206 is in the on-hook state, when performing various tasks such as meter reading, medical treatment, or control, the coupler (audible frequency d) indicating an operation performance requirement in the line multiple access device 203 is used. Audible frequencies (b) and (c) from 204 are judged for abnormal conditions, and various work execution and abnormal state occurrence information are obtained by modem communication between the line multiple access device 203 and the coupler 204. . In the off-hook state, the non-audible frequency (a), (b), (c), ... from the coupler 204 is used to determine the normal or abnormal state and to retry for three times in the normal state. In case of abnormal state, it is determined that it is in abnormal state so that it can be dealt with. Therefore, by checking the on-hook or off-hook state of the subscriber line 206 to flexibly respond to each state, it is inconvenient to always transmit an audible frequency from the coupler 204 side to the line multiple access device 203 side. It is possible to provide a variety of services by the two-way communication with the coupler 204 in the line multiple access device 203 and to determine the emergency state without affecting the subscriber's line use and the existing communication network even while using the line 206. have.

The coupler 204 normally checks the state of the subscriber line 206 and outputs state information through the inaudible frequency generator 405 when the subscriber line 206 is found to be in use. When the subscriber line 206 is in use, the coupler 204 may detect a normal state when an abnormal state occurs or detects an alarm. At this time, if it is determined that the normal state, the coupler 204 transmits a non-audible frequency (a) different from the voice frequency through the inaudible frequency generator 405 to the subscriber line 206, if the abnormal state, the corresponding non-audible By sending the frequencies (b), (c), ... it is notified of the status quickly, the type is configured to be up to 15 possible. However, when the subscriber line 206 is not in use, the microcontroller 401 periodically checks the state of the coupler 204 and the alarm state, and the audio frequency detector 403 checks the audible frequency in the standby state. When an audible frequency from the line multiple access device 203 is received, the microcontroller 401 outputs response data corresponding to the received audible frequency, and the audible frequency generator 405 outputs the response data. It is generated at an audible frequency and output to the subscriber line (206). The frequency configuration according to the line state of the line multiple connection device 203 and the coupler 204 as described above is shown in Table 1.

Here, the audible frequency (a) is the first audible frequency for the status query of the coupler, the audible frequency (b) is a second audible frequency indicating that the coupler is in a normal state, the audible frequency (c) is that the coupler is abnormal The notification becomes the third audio frequency, and the audio frequency d becomes the fourth audio frequency for the work command of the coupler. In addition, the inaudible frequency (a) is a non-audible frequency indicating a normal state, the inaudible frequencies (b)-(p) is an inaudible frequency indicating each abnormal state.

An operation process of the line multiple access device 203 and the coupler 204 will be described with reference to FIGS. 7 and 8. In this case, the lead / light port configuration of the line multiple connection device 203 is shown in Table 2 below.

Here, HF represents the presence or absence of use of the subscriber line 206 (0: Hook-on, 1: Hook_off), and STD represents the state of the Pilot Frequency Detected (0-Detected, 1: Non_detected). Indicates.

First, the operation of the line multiple access device 203 will be described. The line multiple access device 203 analyzes the state of the subscriber line 206 by controlling the multiplexer 202 when receiving a work command message as shown in FIG. If there is no work command, the function scans the state of the subscriber line 206 at a predetermined time period and checks the state of the coupler 204 and the state of the sensors. First, in step 700, the line multiple access device 203 checks the state of use of the subscriber line 206. If the line multiple access device 203 is in use (when the HF bit of the lead port is in the H state), in step 701, the coupler ( The timer 1 (T_t1-100) which drives the subaudible frequency corresponding to the normal or abnormal state of the 204 is driven. In step 702, it is checked whether the non-audible frequency a is received from the coupler 204. If the non-audible frequency (a) is not received in step 402, the non-audible frequencies b, c, ... indicating that the coupler 204 is in an abnormal state is received in step 707. If received, the non-audible frequency (b), (c), ... received in step 708 is analyzed to determine the type of non-steady state of the coupler 204. In this case, the determination of the alarm information according to the type of the inaudible frequency is performed by using the received tone data shown in Table 1 above. At this time, according to the determination result, the alarm information is recorded and stored in Almtb 508 of FIG. 5 so that it can be transmitted to the computer center 208 later.

However, when the non-audible frequency is not received in step 707, the timer 1 (T_t1) for receiving the non-audible frequency corresponding to the normal or non-normal state of the coupler 204 is timed in step 709. If it is not timed out (if the value of T_t1 is not 0), repeat step 702, and if it is timed out (if the value of T_t1 is 0), the coupler (step 710) is performed. It is determined that the defect of 204 or the disconnection state of the subscriber line 206 is broken. The microcontroller 301 then records and stores them in the Almtb 508 of FIG.

However, when the non-audible frequency a is received in step 702, the state of the coupler 204 is determined to be normal in step 703. Thereafter, in step 704, it is checked whether the line multiple access device 203 is in a state in which various tasks such as meter reading, medical treatment, or control are to be performed, and if the state is not in the state (Prcflg reset state), the process is repeated. If the operation is to be performed (Prcflg set state), the number of retries is increased in step 705 (Rptcnt = Rptcnt + 1). After that, in step 706, the user checks whether 3 retries have been attempted and 3 retries (when the Rptcnt value is 3) is repeated so that the subscriber line 206 is not in use. You can also perform various tasks such as medical treatment or control.

If the subscriber line 206 is not in use in step (700) (HF bit of Table 2 is L state), the line multiple access device 203 has to perform various tasks such as meter reading, medical treatment or control. In step 711, the recognition is performed. In this case, the work command message as shown in FIG. 10 (a) is received from the utility company 209. If the operation is to be performed (Prcflg set state), in step 712, an audible frequency d representing the data transmission for performing the operation is transmitted to the coupler 204, and in step 713, the coupler 204 is transmitted. A timer 2 (T-t2-10) for receiving an audible frequency corresponding to a normal or non-normal state is driven. In step 714, it is checked whether an audible frequency b is received indicating that the coupler 204 is in a normal state. In this case, if the audible frequency (b) is not received, it is checked whether the audible frequency (c) indicating that the coupler (204) is in an abnormal state is received in step (718), and if it is received, the coupler (in step 721). 204 is determined to be abnormal, and in step 722, non-steady state information of the coupler 204 is received through modem communication between the line multiple access device 203 and the coupler 204, and set up in step 723. Initialize the modem to stop modem communication. However, if the audible frequency (c) is not received in the step (718), the timer (2) that the audio frequency corresponding to the normal or non-normal state should be received from the coupler 204 in step (719) is timed out If it is not timed out (if the value of T_t2 is not 0), the process is performed again (step 714), and if it is timed out (if the value of T_t2 is 0), the coupler 204 in step 720 is performed. ) Is judged to be defective or the disconnected state of the subscriber line 206. In addition, when an audible frequency (b) indicating that the coupler 204 is in a normal state is received in step 714, it is determined that the coupler 204 is in a normal state in step 715, and the line multiple access device 203 In operation 716, various operations such as meter reading, medical treatment, or control are performed through modem communication between the coupler 204, and then operation 717 is initialized.

If the subscriber line 206 is not in use at step 700 and the line multiple access device 203 is not in a state in which various operations such as meter reading, medical treatment or control are to be performed, the coupler 204 at step 724. Transmits an audible frequency (a) to the coupler 204 for inquiring a normal or non-normal state of a), and receives an audible frequency corresponding to a normal or non-normal state from the coupler 204 in step 725. The timer 3 (T_t3-10) is driven. Thereafter, in step 726, it is checked whether an audible frequency b is received indicating that the coupler 204 is in a normal state. If the audible frequency b is received, the coupler 204 is returned to a normal state in step 727. To judge. However, if the audible frequency b is not received, it is checked in step 728 whether the audible frequency c indicating that the coupler 204 is in an abnormal state is received. From (204), it is checked whether the timer (3) in which an audible frequency corresponding to a normal or non-normal state should be received has timed out, and if it has not timed out (if T_t3 is not 0), the above (726) In step 730, if the T-t3 value is 0, it is determined that the coupler 204 is defective or that the subscriber line 206 is disconnected.

If an audible frequency (c) indicating that the coupler 204 is in an abnormal state is received in step 728, it is determined that the coupler 204 is in an abnormal state in step 731, and the line multiple access is performed in step 732. After receiving the abnormal state information of the coupler 204 through modem communication between the device 203 and the coupler 204, the modem that was set up in step 733 is initialized.

FIG. 8 is a software flow diagram of the coupler 204, which performs a remote operation under the control of the line multiplexer 203, and detects an inaudible frequency according to the detection by the particle preference 206 when an abnormal state is detected. Send it out. First, the coupler 204 checks the state of use of the subscriber line 206 at step 800, and if it is not in use, the coupler 204 from the line multiple access device 203 at step 801. It is checked whether an audible frequency (a) is received which inquires the state of. In this case, when the audible frequency (a) is not received, it is checked whether the audible frequency (d) for requesting to perform work is received from the line multiple access device (203) in step (802). At this time, if the audible frequency (d) is not received in step (802), step (800) is repeated.

However, if the audible frequency (d) is received, the state of the alarm sensor (S1-S15) is checked in step (803), and then the timer (ANFT-5) is driven, and in step 804 it is normal or not. Check for alarm or fault status. At this time, if the normal state in the check step (806) proceeds to the line multiple access device 203 transmits an audible frequency (b), if the alarm or failure state (805) in the line multiple access device 203 After transmitting the audible frequency (c) in step (80), it is determined whether the timer (ANFT) that was driven in step (803) is timed out (807). In this case, if the timeout does not occur in step 807, the operation (807) is repeated, and if timeout occurs, the modem is set up with the line multiple access device 203 in step 808, and then the communication state is normal. In one case, the operation is performed, and in case of an alarm or failure, the information is transmitted to the line multiple access device 203.

However, when the audible frequency a for inquiring the state of the coupler 204 is received from the line multiple access device 203 in step 801, the alarm sensor state of the coupler 204 in step 813 (S1). Check S15) and run the timer (ANFT-5). Thereafter, in step 814, it is checked whether the state of the sensors S1-S15 is in a normal state or an alarm or failure state. If the state is normal, in step 816, the audible frequency b is transmitted to the line multiple access device 203. If an alarm or a failure occurs, the audible frequency c is transmitted to the line multiple access device 203 in step 815, and then a check is made to see if the timer ANFT, which has been driven in step 813, has timed out. Follow the steps. If it has not timed out in step 817, step 817 is performed. If the timeout is not performed in step 817, step 817 is repeated. If timeout is performed, all the operations are completed and the operation is performed from step 800.

In addition, if the subscriber line 206 is in use in step 801, the alarm sensor state (S1-S15) of the coupler 204 is checked in step 809, and in step 812, the line multiple access device ( And transmits the inaudible frequency (a) to the line multiple access device (203) according to the type in step 811 if the inaudible frequency (a) is transmitted. Send ..

In summary, the line multiple access device 203 performs a scanning operation by controlling the multiplexer 202 when a remote work command is not received from the utility company 209, and performs a remote work command. When the message is received, the multiplexer 202 is controlled to connect the subscriber line 206 in sequence, send a message according to a remote work command, and process the received message and send it to the utility company 209.

First, if there is no request of data (eg, reading value, etc.) of the user terminal 212 requested by the public utility company 209 of FIG. 2, the process of FIGS. 9 (e) to 9 (h) is performed. In order to do this, the microcontroller 301 of the line multiple access device 203 controls the multiplexer control unit 311 to transmit a multiplexer control signal. Then, the multiplexer control unit 311 analyzes this signal and sequentially sends a relay operation signal to the corresponding relay 312 so that the relay 301 is operated and electrically connected to the subscriber line 206 on the communication network 200 side. . At this time, the microcontroller 301 first determines whether to use the subscriber line 206 through the line state detection component 306. If it is not in use, the microcontroller 301 as shown in Figs. 9 (e) and 9 (f) is used. The audible frequency generator 303 is controlled to transmit an audible frequency a that the coupler 204 can recognize. Thereafter, when the coupler 204 receives the audible frequency a from the line multiple access device 203 through the subscriber line 206, the line multiple access device as shown in FIG. The audible frequency (b) is transmitted to (203), and the line multiple access device (203) detects this by the microcontroller (301) through the audible frequency detector (303) and determines the state of the subscriber as a normal state. The subscriber will continue to be scanned periodically. However, when an abnormal state occurs in the coupler 204 or the user terminal 212 or an alarm occurs, the coupler 204 causes the audible frequency (a) from the line multiple access device 203 as shown in FIG. 9 (f). ), The audio frequency c is transmitted to the line multiple access device 203 for a predetermined time, and then ready for communication with the line multiple access device 203, and the line multiple access device 203 is connected to the subscriber line. The audible frequency c received by the furnace 206 is detected by the microcontroller 301 through the audible frequency detector 303, and the coupler communication unit 305 is controlled to inquire the type of abnormal state to the coupler 204. After receiving the result through the coupler communication unit 305, the computer communication unit 307 notifies the computer center 208. When the coupler 204 does not wait for a predetermined time for a response from the line multiple access device 203 to the audible frequency a, the coupler 204 may be defective or the user side line 206 may be disconnected. You will be notified.

However, if the subscriber line 206 is in use, it is performed as shown in FIGS. 9 (g) and 9 (h), and the coupler 204 detects an abnormal use of the coupler 204 or the user terminal 212. Determination of the type of state and alarm state and whether it is normal or not. Maximum 15 kinds of non-audible frequency (a) in normal state and inaudible frequency (b), (c), ... in abnormal state Is transmitted to the line multiple access device 203. Then, the line multiple access device 203 detects through the inaudible frequency detector 304 and the microcontroller 301 notifies the computer center 208, and the inaudible frequency from the coupler 204. If the user does not wait for a predetermined time to receive the notification of the failure of the coupler 204 or the disconnection of the subscriber line 206.

In addition, when each utility company 209 requests data from the user terminal 212, such as meter reading, medical care, traffic, control, or the like, and transmits the data to the user terminal 212, the utility company 209 is a computer center 208. And transmits a work command message indicating various data requests and transfer commands as shown in FIG. 10 (a) to the line multiple access device 203. Then, the micro-controller 301 receives and analyzes the micro-controller 301 through the computer communication unit 307 of the line multiple access device 203 to perform a process as shown in FIGS. 9 (a) to 9 (d). In addition, the multiplexer control unit 311 controls the multiplexer 202 to connect the corresponding subscriber line 206, and then determines the state of the subscriber line 206 through the line state detection unit 306. The back surface is performed as shown in FIG. 9 (c) and 9 (d). In this case, the line multiple access device 203 transmits the information indicating that the line is in use to the public utility company 209 and retries the system three times. Then, when the state of the subscriber line 206 is not in use, the data request of the user terminal 212 or the data transmission to the user terminal 212 can be performed as shown in FIG. 9 (c). If the subscriber line 206 is not in use, the line multiple access device 203 transmits the data request of the user terminal 212 to the user terminal 212 as shown in FIGS. 9 (a) and 9 (b). An audible frequency (d) representing data transmission of utility company 209 is transmitted to a coupler 204 via an audible frequency generator 302, which coupler 204 analyzes this and coupler 204 as described above. ) Or when an abnormal state occurs in the user terminal 212 or an alarm occurs, an audible frequency c is transmitted to notify an emergency state, and in a normal state, the audible frequency b is transmitted for a predetermined time. Then, when the line multiple access device 203 receives the audible frequency b through the audible frequency detector 303 and determines that the track is in a normal state, the line multiple access device 203 transmits a data request to the user terminal 212 or transmits data to the user terminal 212. It controls the coupler communication unit 305 for transmission, and transmits data to be transmitted or data to request to the coupler 204. When requesting data from the coupler 204, the result of using the message is received as shown in FIGS. 10 (b) and 10 (d) through the coupler communication unit 305, and then the computer communication unit 207. Control to notify the computer center (208). However, when the coupler 204 does not wait for a predetermined time for the response to the audible frequency d from the line multiple access device 203, the coupler 204 is defective or the disconnection of the subscriber line 206 is lost. Notify by status.

As described above, the emergency state can be transmitted to the utility company 209, which is a service provider, without affecting the subscriber's line use and the existing communication network. In addition, even when the subscriber line 206 is not in use, it is possible to quickly cope with the alarm state of the home by using the audible frequency that is easy to detect, while recognizing the state of the coupler 204 and the user terminal 212 with the minimum time. . In addition, the multiplexer 202 and the line multiple access device 203 are connected by a simple control signal 314 to operate the multiplexer 202, thereby facilitating installation and maintenance, and flexibly coping with the increase in subscribers. Advantageously, since the computer communication unit 307 is placed inside the line multiple connection apparatus 203, the computer center 208 can easily form a communication network wherever it exists.

As described above, in the remote information processing system according to the present invention, when the subscriber telephone is in the on-hook state, the scanning time is short and the off-hook state is obtained by obtaining the presence or absence of the coupler by the audible frequency between the line multiple access device and the coupler. When the alarm occurs or does not occur, the presence or absence of the coupler's alarm state is obtained by using the non-audible frequency between the multiplexer and the coupler, so that the existing call is not affected even when the subscriber is busy. When attempting to connect the subscriber line 206 to scan the state of the coupler connected in parallel with the subscriber phone, the distributor (line) for the line connection to the subscriber's phone (or interphone) through a telephone network or an interphone network, etc. By mechanically coupling the multiplexer 202 that can access the subscriber line 206 to 205, the installation of the subscriber line does not have to be connected to all the line multiplexing devices, and the installation is very simple. Even more efficient than the conventional invention. In addition, the multiplexing ratio can be varied to match the efficiency of the line multiple access device by coupling a multiplexer that can access the subscriber line to the distributor for the line connection to connect the subscriber line, thereby maximizing efficiency.

Claims (10)

A system for processing information remotely by using a subscriber line connecting a communication network and each subscriber, the system being connected to public companies generating a remote work order message, receiving a work message received from the public companies, A system control unit for outputting the processed result message to the utility company, and a system control unit connected to the system control unit, outputting a control signal for selecting the subscriber lines upon receiving the message, and processing the process result message received from the selected subscriber line. A line multiple access device for outputting to the system control unit, and is mechanically connected to a distributor of the communication network to access the subscriber line, and is switched when the control signal is received from the line multiple access device to sequentially convert the subscriber lines. A multiplexer for connecting the line multiplexing device And remotely connected to each of the subscriber lines and connected to a plurality of sensor devices, and comprising a coupler that collects information of a corresponding sensor upon receiving a message from the subscriber line and outputs the information to the subscriber line. Processing system. The apparatus of claim 1, wherein a line multiple access device is connected to the subscriber line, and is connected to a line state detection unit for detecting a hook on / off state of the subscriber, connected to the system control unit, and configured to transmit a message to the system control unit. A control communication unit performing a communication function and a control signal for selecting the subscriber lines when receiving a work command message from the control communication unit, receiving the output of the line state sensing unit, and transmitting the received message when the hook is in the on state And a control unit for outputting a processing result message received at the same time to the control communication unit, a multiplexer communication unit connected to the multiplexer and outputting a control signal output from the control unit, and connected to the subscriber lines. Outputs the output message to the selected subscriber line and A processing result message is received from the remote information processing system, it characterized in that the communication unit is configured as a coupler for outputting to the control unit. The multiplexer of claim 1 or 2, wherein a multiplexer is connected to the line multiplexing device and outputs a multiplexing signal for sequentially connecting the subscriber lines to the line multiplexing device at a predetermined time period upon receiving the control signal. A plurality of relays connected to the multiplexer control unit, the subscriber lines respectively and commonly connected to the line multiplexing device, and switched by an output of the multiplexer control unit to sequentially connect the subscriber lines to the line multiplexing device. Remote information processing system, characterized in that consisting of. The line multiplexer according to any one of claims 1 to 3, wherein a coupler is connected to the subscriber line and is connected to the subscriber line and detects a hook on / off state of the subscriber. A line multiple access device communication unit performing a communication function for transmitting a message to a device, a sensor interface unit connected to a plurality of sensors to collect and store state information of corresponding sensors, and a message received from the line multiple access device. And a control unit configured to receive an output of the line state sensing unit and to read a hook-on state temporary reception message from the sensor interface unit as a processing result message and output the processing result message to the line multiple access device communication unit. Information processing system. A system for remotely processing information using a subscriber line connecting a communication network and each subscriber, the system comprising: outputting a control signal for selecting the subscriber lines at a predetermined time period, and detecting a state of the subscriber line to detect a temporary subscriber that is not in use Generates a first audible frequency for inquiring the state of the signal and outputs it to the subscriber line, and upon receiving the third audible frequency from the subscriber line, enables the communication unit to receive abnormal status information, and when the subscriber line is in use, the subscriber line. A line multiple access device for analyzing a normal state by analyzing an inaudible frequency received from a network, and is mechanically connected to a distributor of the communication network so that the subscriber line can be accessed. Switch upon receiving a signal to multiple the subscriber lines A multiplexer sequentially connected to a slave device, and connected in parallel with the subscriber line, and detects the state of the subscriber line and generates an inaudible frequency according to the state of the subscriber when the busy state is not in use and outputs it to the subscriber line. And a coupler configured to collect status signals of the equipment installed in the home when the first audio frequency is received and output the third audio frequency signal to the subscriber line in case of abnormality. The apparatus of claim 5, wherein the line multiplexing device detects a state of use of the subscriber line and outputs a hook on / off signal, and generates first audible tone data when the hook on signal is received. A control unit for generating a third audible tone data temporary communication control signal by analyzing the received audible tone data, and detecting a state by analyzing the inaudible tone data received when the hook-off signal is received, and being connected to the multiplexer, A multiplexer communication unit for thrusting a control signal output from the control unit, an audible frequency generating unit generating a first audio frequency and outputting the first audio frequency to the subscriber line when the control unit outputs the first audible tone data, and receiving from the subscriber line An audible frequency detector for converting the audible frequency into audible tone data to be transmitted to the controller; A non-audible frequency detector for converting the inaudible frequency received from the non-audible tone data to be transmitted to the controller and a coupler communication unit set up by a modem control signal of the controller to perform modem communication through the subscriber line. Remote information processing system, characterized in that. The apparatus of claim 5 or 6, wherein a multiplexer is connected to the line multiplexing device and outputs a multiplexing signal for sequentially connecting the subscriber lines to the line multiplexing device at predetermined time intervals when the control signal is received. A multiplexer control unit and a plurality of relays each connected to the subscriber lines and commonly connected to the line multiplexing device and sequentially connecting the subscriber lines to the line multiplexing device. system. A line state sensing unit according to any one of claims 5 to 7, wherein the coupler detects a state of the subscriber line and outputs a hook on / off signal, and a first audible signal received when the hook on signal is received. A control unit which checks the state by tone data and outputs second audio tone data at normal time and third audio tone data at abnormal time, and generates inaudible tone data according to the state of the system when the hook-off signal is received; An audible frequency generator for converting the audible tone data from the control unit into a second audible frequency or a third audible frequency corresponding to the received tone data and outputting the audible tone data to the subscriber line; An inaudible frequency generating unit for converting to an inaudible frequency upon reception and outputting to the subscriber line; Remote information processing system comprising a line multiple access unit communication unit for performing a modem communication through. A method of processing information remotely using a subscriber line connecting a communication network and subscribers, the method comprising: a control signal having a predetermined period by controlling a multiplexer mechanically connected to a distributor of the communication network when a work command message is received from a utility company; Sequentially outputting the subscriber lines to sequentially select the subscriber lines, checking the hook on / off state of the selected subscriber line, and checking the hook on / off state during the inspection process through the coupler and the subscriber line. Exchanging a tone signal of a signal, establishing a communication path upon receiving a tone signal indicating a normal state, outputting a work command message to a coupler, and outputting a processing result message received from the coupler to the utility company; In the hook on state through the coupler and the subscriber line The audible coupler and the coupler and the subscriber line through the audible coupler and the subscriber line exchanges the tone signal of the audible band, and when receiving a tone signal indicating that the abnormal state to form a communication path with the coupler to receive an abnormal state message Receives and transmits to the utility company side, and receives the inaudible frequency received through the subscriber line when the hook off state during the inspection process, and waits for a predetermined time when receiving the inaudible frequency indicating the normal state, the subscriber hooks Establishing a communication path with the coupler when transitioning to an on state, outputting a work command message, and outputting a processing result message received from the coupler to the utility company; Receive inaudible frequencies received by And analyzing the received inaudible frequency when receiving an inaudible frequency in an abnormal state and outputting a status message according to the abnormal state to the utility company. A method for remotely processing information using a subscriber line connecting a communication network and subscribers, the method comprising: sequentially selecting the subscriber lines by outputting a control signal by controlling a multiplexer mechanically connected to a distributor of the communication network; And checking a hook on / off state of the selected subscriber line, exchanging a tone signal of an audible band through the coupler and the subscriber line when the hook on state is in the checking process, and receiving a tone signal indicating a normal state. In the process of selecting the next subscriber line, the audible through the coupler and the subscriber line through the coupler and the subscriber line at the hook-on state during the inspection process through the coupler and the subscriber line Exchange tone signal of audio band and indicate abnormal state When receiving a tone signal, after forming a communication path with the coupler, receiving an abnormal status message, sending it to the utility company, and selecting the next subscriber line, and the subscriber line at the time of hook-off state in the inspection process. Receiving the inaudible frequency received through, and proceeds to the process of selecting the next subscriber line when receiving the inaudible frequency indicating that the normal state, and the inaudible received through the subscriber line when the hook off state in the inspection process Receiving a frequency and analyzing the received inaudible frequency when receiving an inaudible frequency in an abnormal state and outputting a status message according to the abnormal state to the utility company, and then selecting a next subscriber line. Remote information processing method.