KR950009580B1 - Remote information processing device - Google Patents

Abstract

The device includes a line multi-connect part which transmits detecting data being added from the detecting terminal to the central station. This process involves communicating with a coupling instrument which is connected between a multiplication instrument and the upper detecting terminal to couple the terminal and comunication between central stations in response to the order of the central station and involves being connected to the multiplication instrument and the central station.

Description

Remote information processing device with multiple line connection

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

2 is an overall configuration diagram of a remote information processing apparatus of the present invention.

3 is a block diagram of a line multiple connection of the present invention.

4 is a coupler configuration diagram of the present invention.

5 is a configuration diagram of a coupler communication unit of the present invention.

6 is a block diagram of a transformer applied to the present invention.

The present invention provides a remote information processing system using a public telephone network, which is connected to an existing distributor (main distribution frame (MDF), intermediate distribution frame (IDF, Intermediate Distribution Frame) to control a multiplexer for multiple access to subscriber lines). Fault occurrence status and security occurrence status (fire, gas leak, etc.) of subscriber premises equipment (hereafter coupler) connected in parallel to various work information processing (remote reading, remote medical care, remote traffic, remote control ...) and subscriber line Tracks theft, methods, ...) periodically and reports the information to the top so that each utility company (safety management company, police station, fire department, gas safety management company, ...) can act quickly. The present invention relates to a remote information processing apparatus having multiple connections.

A device like FIG. 1 of several prior art in the field of such remote information processing systems is disclosed in U.S. Pat. 4,442,320, which was invented by a number of Roland T James.

FIG. 1 is a system configuration diagram shown in the James patent, which is divided into (1a), (1b), and (2c) degrees, and (1a) is an existing telephone line network 10 and subscriber telephones (11, 12, 13). ), The scanner 18 and the scanner 18 and the subscriber line, which are placed in a position where the subscriber telephone line 14, 15, 16, the local exchange 17, and the subscriber line 14, 15, 16 can be easily connected. The entire system consists of subscriber line units 22, 23 and 24 connected in parallel to subscriber lines 14, 15 and 16 and lines 19, 20 and 21 representing connections between 14, 15 and 16. Fig. 1b is a detailed view of the scanner 18. The existing time primary and secondary times select different connections at different times on the lines 19, 20 and 21 connected to the scanner 18. The multiplexer 25 is configured as a tertiary multiplexer 25, 26, and 27, and the multiplexer 25 is bidirectionally connected to a transmit / receive switch 28, a tip and a ring switch. Optionally connect different line connections 19, 20 and 21 at time, tip, ring switch 28 receives FSK modem signal received from demodulator 29 to multiplexer 25 and FSK from modulator 30 The modem signal is transmitted to the multiplexer 25, and the multiplexers 26 and 27 provide different output signals to different filters 32 and 33, respectively.

The filter 32 also provides the hook-off signal of the subscriber to the hook-off detector 34, the filter 33 to the low-tone detector 35, and the output signals of these detectors 34, 35 are system controllers. 31) is supplied. (IC) is a detailed view of the subscriber terminal unit (STU) 22, 23, 24, wherein a signal input in parallel with the subscriber line 14 is input to the filter 36, and the filter 36 Provides the filtered out-put signal for the FSK modem signal to the demodulator 37, and the FSK modem signal from the modulator 38 is transmitted to the subscribing line 14 and the low tone generated by the Luotone generator 39. Is transmitted through the subscriber line 14, the output signal from the demodulator 37 is received by the signal processor 40, and the FSK modem signal of the modulator 38 and the low tone of the low tone generator 39 are signals. It is controlled by the processing unit 40. In addition, the signal sources 41, 42, 43 detect the alarm state of the fire lamp in the subscriber terminal unit 22 to open and close the relay.

Briefly describing the operation of the conventional system having the above configuration, the low tone generator 39 of each subscriber terminal unit 22 is configured to generate a frequency below the audible frequency range of the subscriber terminal unit 22. When the signal sources 41, 42, and 43 are not in the alarming state, the low tone generator 39 is controlled by the signal processing unit 40, and the low tone generator 39 is controlled to the line 19 connected to the subscriber line 14 and the scanner 18. By transmitting a tone, the scanner 18 (to detect that an alarm has not occurred) is detected. When the signal sources 41, 42, and 43 are in an alarm state, the low tone generator 39 is received by the signal processor 40. Is controlled so that the subscriber line 14 does not transmit low tones to the line 19 connected to the scanner 18 so that the scanner 18 can detect that an alarm has occurred. Occurred with the terminal unit 22 The following four undesired cases can be explained by way of example.

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 ( 22), the multiplexer 25 is controlled to periodically transmit the FSK modem signal through the modulator 30, and the subscriber terminal unit 22 transmits the FSK modem signal through the modulator 38 when no alarm occurs. The rice demodulator 29 of the scanner 18 detects the FSK modem signal, indicating that no alarm occurs in the system controller 31.

Second, when the subscriber telephone is on hook and an alarm occurs, the scanner 18 controls the multiplexer 26 so that the subscriber line 19 detects the on-hook state through the filter 32 and the subscriber terminal unit 22. The multiplexer 25 controls the multiplexer 25 to periodically transmit the FSK modem signal through the modulator 30, and the subscriber terminal unit 22 detects the alarm generation status and detects the FSK modem signal. You can see.

Third, when the subscriber telephone is in the off-hook state 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 terminal unit ( 22), without transmitting the FSK modem signal through the modulator 30, the low tone from the subscriber terminal unit 22 is controlled by the multiplexer 27, and the subscriber terminal unit 2 detects that no alarm occurs. When the signal processor 40 controls the low tone generator 39 and transmits the low tone, the low tone detector 35 detects the low tone through the filter 33 of the scanner 18 and the system controller 31 detects the low tone. It can be seen that no alarm has occurred.

Fourth, when the subscriber telephone is in the off-hook state and the 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. Instead of transmitting the FSK modem signal through the modulator 30, the low-tone from the subscriber terminal unit 22 is controlled by controlling the multiplexer 27. The subscriber terminal unit 22 detects a state where an alarm has occurred. If the low tone is not transmitted by controlling the low tone generator 39 at 40, the low tone detector 35 does not detect the low tone through the filter 33 of the scanner 18, and thus the system controller 31 When it is determined that the alarm has occurred, the subscriber terminal unit 22 modulates the alarm generation state and modulates the FSK modem signal in order to transmit the FSK modem signal through the modulator 30 by controlling the multiplexer 25 with the subscriber terminal unit 22 (38). ) When transmitting through the modulation demodulator 29 of the scanner 18 will be detected that the alarm occurred in the system controller 31 by detecting the FSK modem signal.

As can be seen from the above, when the subscriber telephone is in the on-hook state and no alarm occurs or has not occurred, it is obtained through the FSK modem communication between the scanner 18 and the subscriber terminal unit 22, and the subscriber telephone is in the off-hook state and an alarm occurs. If not, the scanner 18 detects the non-audible frequency (low tone: 25 Hz) transmitted from the subscriber terminal unit 22 and recognizes that it is normal. If an alarm occurs, the subscriber terminal unit ( After detecting that there is no low tone from 22), alarm information of the subscriber terminal unit 22 is obtained through FSK modem communication between the scanner 18 and the subscriber unit 22.

However, when the telephone is off-hook and an alarm occurs, alarm information is obtained through the FSK modem communication between the scanner 18 and the subscriber terminal unit 22, so that the existing call is affected when the subscriber is busy. When the subscriber phone is in the on-hook state, when the alarm occurs or does not occur, and when the phone is in the off-hook state and the alarm occurs, the scanning time of the scanner 18 also takes a long time.

As can be seen from the system configuration of FIG. 1, the scanner 18 and the subscriber line 14, 15, 16 are connected between the scanner 18 and the subscriber line 14 so as to periodically scan the state of the subscriber terminal units 22, 23, 24. If the line (19, 20, 21) that is connected to accommodate a large number of subscribers, many line connections are required, which makes installation difficult and can cause a price increase, and management of existing telephone lines (14, 15, 16). In addition, management of the connecting lines 19, 20, and 21 is also required, which leads to a lot of difficulties in terms of operation, and selects different connections of the connecting lines 19, 20, and 21 at different times in the scanner 18. Since the time primary, secondary, and tertiary multiplexers 25, 26, and 27 are built in, when accommodating a large number of subscribers, the multiplexing ratio is closely related to the efficiency of the scanner 18. Built-in multiples may cause price increases If the current structure does not include a plurality of high multiplexers 25, 26, and 27, the multiplexing ratio will be high and the efficiency of the scanner 18 will be reduced.

Accordingly, an object of the present invention is to control a multiplexer connected to an existing main distribution pipe (MDF) and an intermediate distribution pipe (IDF) (hereinafter referred to as a divider) in a remote information processing system using an existing line to control a multiplexer for multiple access to subscriber lines. Failure state and security occurrence state (fire, gas leak, theft) of subscriber premises equipment (hereafter coupler) connected with information processing (remote reading, remote medical care, remote traffic, remote control, ...) and subscriber line in parallel , Periodical scans of crime prevention, ...) and the resulting information to the top so that each utility company (safety management company, police station, fire department, gas safety management company, ...) can act quickly. The present invention provides a remote information processing apparatus having multiple connections.

It is another object of the present invention to provide a remote information processing apparatus having a line multiple access unit capable of obtaining information through two-way communication without causing mutual interference between the failure state and the security generation state of the coupler irrespective of the subscriber call state. Is in.

Another object of the present invention is to facilitate scanning and to simplify the connection of the subscriber line to periodically scan the status of the coupler even when the alarm occurs or does not occur, and to quickly scan the status of the coupler. It is to provide a remote information processing apparatus having a line multiple access unit that can be done efficiently.

Another object of the present invention is to solve the problem of detecting the existing subscriber call state by performing the two-way communication between the scanner and the coupler irrespective of the subscriber call state, and to implement the telemedicine or data service requiring two-way communication during the call. It is to provide a line multiple connection that can be realized.

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

2 is an overall configuration diagram of the remote information processing apparatus of the present invention, the communication network 200 is a conventional voice communication network used for connecting a line to a subscriber's handset (telephone or interphone) 205 through a telephone network or an interphone network. The multiplexer 202 capable of accessing the track to the distributor 201 is mechanically coupled and the coupler 204, which is a terminal of the present invention, in parallel with the handset 205 connected to the subscriber track 206.

In this case, the multiplexer 202 is mechanically coupled to the distributor 201, which is easy to install, and the system can be flexibly expanded according to the increase of subscribers. The coupler 204 has a user terminal that is in charge of actual service. The user terminal may be an alarm terminal, a meter reading terminal, a medical examination terminal, a traffic terminal, or the like, and controls the multiplexer 202 coupled with the distributor 201 and accesses the subscriber line 206 according to the service type. Information of the line multiple connection unit 203 communicating with the coupler 204 and the operation command to the line multiple connection unit 203 and the result of periodically scanning the coupler 204 with the data and the line multiple connection unit 203. A computer center 208 for collecting the data, and an accessory device 209 for a public utility company that processes and services data received from the computer center 208.

Referring to the operation of FIG. 2 in detail according to the above configuration, when there is no request for data (for example, meter reading value) of the user terminal 212 requested by the accessory device 209 of the utility company, the line multiple connection unit ( 203 sequentially controls the multiplexer 202 and accesses the coupler 204 so that the state of the line 206, the state of the coupler 204 and the state of the user terminal 212, and the alarm terminal are present. If the abnormal condition occurs without any trouble to the track user regardless of the usage status of the track 206, the computer center 208 notifies the computer center 208 of the utility company 209 To be informed, to run the corresponding service. Here, the computer center 208 may exist in the same building as the track multiple access unit 203 or may exist remotely.

Therefore, the line multiple access unit 203 may have a means for communicating with the computer center 208 for a general communication line, a remote demodulation device, and the like. When the data is requested, the line multiple access unit 203 controls the multiplexer 202, accesses the corresponding subscriber to determine the use of the line, and performs communication when not in use to couple the data of the user terminal 212 to the coupler 204. When received through the computer and transmitted to the computer center 208, the computer center 208 is a device to notify the public utility company 209 to perform the service.

3 is a detailed configuration diagram of the line multiple access unit 203 and the multiplexer 202. The multiplexer control unit controls the operation of the relay 301 and the relay 301 connected to the subscriber line 311 on the communication network 200 side. A portion composed of the control signal 312 of the relay 301 supplied from the control unit 302 corresponds to the multiplexer 202 and the multiplexer generating the control signal 314 of the multiplexer 202. A coupler communication unit 310 and a coupler communication unit which control the relay 301 of the control signal generator 303 and the multiplexer 202 to connect the user side subscriber line 313 and then communicate with the coupler regardless of a call. A microcontroller 305 for controlling the multiplexer control unit 310 and control signals 315 and 322 for controlling each unit, a computer center communication unit 304 for communicating with the computer center 208 in the microcontroller, Microcontroller The line multiple access unit 203 includes a portion composed of a signal line 373 transmitted and received between the lines 305 and a communication line 316 between the computer center communication unit 304 and the computer center 208.

Referring to one embodiment of the preferred operation of the present invention according to the above configuration, the request of data (for example, reading value, etc.) of the user terminal 212 required by the accessory device 209 of the public utility company of FIG. If not, the microcontroller 305 of the line multiple access unit 203 transmits to the multiplexer control unit 302, and the multiplexer control unit 302 analyzes this signal and sends a relay operation signal 312 to the corresponding relay 301. . Accordingly, the corresponding relay 301 is operated so that the subscriber line 311 of the communication network 200 is periodically connected to the user line 313 and the microcontroller 305 inquires about the state of the coupler through the coupler communication unit 310. If the inquiry information is sent to the coupler, the coupler receives it through the line multiple access unit communication unit 405 and then sends an acknowledgment in a normal state and transmits the information as data in an abnormal state. .

At this time, if there is no response from the coupler, it is determined that the coupler is defective and this information is transmitted to the computer center.

What is described above is operated regardless of the subscriber state, and the operation circuit will be described with reference to FIG.

5 is a configuration diagram of the communication unit 310 that communicates between the scanner and the coupler, and is a part of the configuration of the line multiple connection unit 203 outside the present invention. 5 is used for the purpose of performing communication irrespective of a subscriber's call state, and its principle is that even when using the existing MODEM 523 using a voice band signal by transmitting an in-phase signal to the subscriber lines 500 and 501. This is because it is distinguished from the conventional communication method that performs the abnormal communication, and it is possible to distinguish only the original in-phase communication signal by performing in-phase communication from the existing abnormal call without affecting the existing abnormal call.

The configuration for this is a common-phase coupling transformer 502 for transmitting the original signal to the subscriber line (500, 501) as the in-phase signal to the subscriber line and passing only the in-phase signal from the subscriber line (500, 501) to the secondary side; The modem 523 for actual communication, the TX gain adjusting unit 506 for adjusting the gain of the analog signal during transmission, the TX enable switch 504 for outputting the actual analog signal, and the recipient for signal reception. Able switch 509, a noise removing unit 512 for removing noise input through the subscriber line, a power noise removing unit 514 for removing power noise input from the subscriber line, and removes frequencies above the communication signal A high pass filter 516, a low pass filter 518 to remove frequencies below the communication signal, an RX gain adjustment unit 520 to adjust the gain of the original signal received, and a communication signal. And a microcontroller 527 which controls the TX and RX switches, creates the actual data, and manages the prescribed communication between the coupler and the line multiplexing device. It works as a function.

FIG. 6 shows the configuration of the in-phase coupling transformer 68 and the abnormal coupling transformer 6a. The abnormal coupling transformer is in series in the direction of the dot (DOT) with respect to the subscriber line so that the direction of the signal is connected to the subscriber line. A phase signal of 180 degrees appears, and the in-phase coupling transformer connects the center to the earth ground, and the direction of the dot is on both sides of the subscriber line so that the signal appears in phase on the subscriber line and only the in-phase signals are summed together. It is configured to skip to. Therefore, it can be seen that by using 6 (b), communication can be performed without interfering with existing abnormal communication and without interference from the existing abnormal communication.

As described above, in the present invention, the subscriber terminal unit 22 of the scanner 18 is obtained because the alarm state of the subscriber terminal unit 22 is obtained through FSK modem communication when the subscriber telephone is in the on hook state. ) Scanning takes a lot of time, and if the alarm is off hooked and an alarm occurs, the alarm occurrence state is detected using the frequency of the non-audible band between the scanner 18 and the subscriber terminal unit 22, but eventually FSK modem communication is performed. By obtaining the alarm information through the subscriber, the defect that has affected the existing call when the subscriber is busy has been eliminated. Also, as shown in the system configuration of FIG. 1, the state of the subscriber terminal units 22, 23, and 24 is detected by the scanner 18 If the line 18, 20, 21, which is the connection between the scanner 18 and the subscriber lines 14, 15, 16, and receives a large number of subscribers for periodic scanning, Since the line connection is required, installation is very difficult and may cause a price increase. In addition to the management of the existing telephone lines 14, 15 and 16, management of the connection lines 19, 20 and 221 is also required. It solved a problem that caused many difficulties. In addition, the scanner 18 has a built-in time primary, secondary, and tertiary multiplexers 25, 26, and 27 for selecting different connections at different times on the connection lines 19, 20, and 21. In the case of accommodating a large number of subscribers, the multiplexing ratio is closely related to the efficiency of the scanner 18. Therefore, if multiplexers 25, 26, and 27 are built in, it may cause a price increase. If the structure does not have several built-in structures, the multiplexing ratio becomes high and the efficiency of the scanner 18 can be eliminated.

However, the present invention has the advantage of shortening the scanning time by communicating irrespective of the hook state of the subscriber phone and using the in-phase communication method that is different from the existing communication, and does not affect the existing call. By communicating, it is possible to easily implement services such as telemedicine, which requires data service for call and communication, and can implement the device at low price because it does not need to detect the subscriber line status during the call, and improve the reliability of communication. There are advantages to it.

Claims (2)

A remote information processing device for performing communication between a central station and meter reading terminals located in a premises of telephone network subscribers, the remote information processing device being connected to a distributor used for a line connection between the subscriber's telephone and an existing voice communication network to access the line. Multiplexing means for connecting, the coupling means connected between the multiplexing means and the meter reading terminal for coupling communication between the terminals and the central station, and connected between the multiplexing means and the central station, And a line multiple access unit communicating with the coupling means in response to a command and transmitting meter reading data applied from the meter reading terminal to the central station. 2. The apparatus of claim 1, wherein the multiplexing means comprises a plurality of relays connected to the subscriber line, and a multiplexer controller for opening and closing the relay in response to an applied control signal.