KR970000068B1 - Information service system - Google Patents

Abstract

The system is provided for performing the more service in a fixed line and reducing the service time in an information service, and includes a global connection device interfacing the input ring signal information, a high capacity storing device, a switching device controlling the switching operation to provide users with the service of a fixed line, a call process device transmitting the switching information into a global connection device, a high capacity storing device, and a switching device.

Description

Information service system with switching function

1 is an overall block diagram of the present invention.

2 is a block diagram of a trunk line connecting apparatus in the present invention.

3 is a block diagram of a switching device in the present invention.

4 is a block diagram of a mass storage device in the present invention.

5 is a block diagram of a call processing apparatus in the present invention.

6 is a block diagram of a conventional voicemail system.

* Explanation of symbols for main parts of the drawings

1, ... 1n: Trunk line connection device 2: Water leveling device

3, ... 3n: Mass storage device 4: Call processing device

11, ... 11n: trunk line connection circuit section 12: highway interface section

13 port processing unit 14 call processing module interface unit

21: Serial / Parallel Converter 22: Data Memory

23: parallel / serial converter 24: call processing module interface

25: connection memory 26: frame control

31, .. 31n: Highway interface unit 32, ... 32n: Data processor

33, .. 33n: Disc control unit 34, ... 34n: Disc

35, ... 35n: Disc 36: Call processing module interface

41: central processing unit (CPU) 42: memory

43: clock and timer controller 44: serial input, output

45: port interface module interface unit 46: switching module interface unit

47: data processing module interface unit 110, .. 110n: relay contact switching unit

111, .. 111n: Ring signal detector 112, ... 112n: Hybrid coil

113, .. 113n: Balance circuit section 114, ... 114n: Multi-frequency signal generator

115, .. 115n: CODEC 116, ... 116n: Time slot controller

310: highway interface unit

311, .. 311n: Adaptive Differential Pulse Modulation

312, ... 312n: Buffer

The present invention relates to an information service system having a switching function, and more particularly, to an information service system capable of providing a service over a predetermined line size and significantly reducing user service time.

In a conventional public communication network, a mailbox system that accumulates and services information such as voice, facsimile, or text, and the like, and accumulates information required by a user in a large-capacity storage device, and then sends the information immediately upon a user's call. The line capacity of the system is determined by how quickly the accumulated capacity and information of the mass storage processing device are accessed and provided to the subscriber.

Accordingly, in the conventional voice mail service system, the service is provided by one disk controller and the disk access time is limited. Therefore, when more than a certain line is added, the time for reading the disk information for each line is further delayed. The longer the service, the slower the service speed and the two systems must be used in conjunction.

However, if the above two systems are operated in conjunction with each other, the facility cost will be more than doubled and the information stored in the accumulators of the other systems will not be accessible. Even if the system can be linked to a LAN to access information of other systems, if the communication time of the LAN is increased and the amount of information exchanged between systems increases, the transmission time becomes longer due to an access collision on the LAN, making the real-time voice service almost impossible.

Referring to FIG. 6, the operation of the conventional voice mail service system will be described.

When a call is made in a public communication network, call processing information through a line and a plurality of port interface units 501, ..., 501n is passed through a plurality of port processors 503, ..., 503n. Is entered.

In this way, when the voice announcement is sent to the telephone network user by the control operation of the main controller 505, the user selects the information of the disk 506 or 507, which is a mass storage device, in accordance with the idle voice.

As described above, the user wants the information to be controlled by the main controller 505 and the disk controller 504 is operated to access the information of the disk 506 or 507 to pass through the buffer 502 and the port interface unit 501. It is provided on the user side.

However, such a conventional information service system may increase the amount of accumulated information by adding an accumulator such as the disc 506, but the time for accessing the disc 506 or 507 by the disc controller 504. Since the number of lines increases, when the disk is used, the time for using the disk is delayed, the voice waiting time in the silent state increases, the user service time increases, and the middle of the voice breaks.

Therefore, in order to provide a natural real-time voice service, there is a problem in that the line capacity that can serve more than one at the same time cannot be increased.

SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem, and a plurality of mass storage processing apparatuses are installed and each mass storage processing apparatus can serve a user of a predetermined line size according to the disk access time under the control of the call processing apparatus. By controlling the leveling device so that the disk access waiting time is reduced for each line, user service time can be shortened, and when the information stored in other mass storage device is needed, the switching device is controlled and connected internally. It aims to solve the problem of having to redial the phone.

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

As shown in FIG. 1, the system of the present invention provides a plurality of pole cable connecting apparatuses 1, ... (1n) for interfacing ring signal information input through a line to be input to the switching apparatus 2 and the call processing apparatus 4. ) And a switching device 2 which performs a switching control operation so that each of the large-capacity accumulators 3, ..., 3n can serve a user of a predetermined line size under the control of the call processing apparatus 4, Installed in correspondence with the plurality of trunk line connecting apparatuses 1,..., 1n, accumulate and process information desired by a user from the call processing apparatus 4 to store the switching device 2 and the trunk line connecting apparatus 1. (3n) and a plurality of large-capacity accumulation processing units (3), ... (3n) transmitted through the (1n), and the corresponding trunk line circuits By assigning one of the input and output circuits of < RTI ID = 0.0 > 1), < / RTI > switching information is connected so that the trunk line connecting apparatuses 1,... And a call processing device 4 for transmitting to the wire connection device 1, ... (1n), a large capacity storage processing device and a switching device 2.

In addition, the plurality of trunk line connecting apparatuses (1), ... (1n) is a relay contact switching unit 110, ... to respond to a call by switching the ring signal through the line as shown in FIG. 110n, ring signal detection units 111, ... 111n for detecting ring signals through the line, hybrid coils 112, ... 112n for separating transmission and reception sounds, A balance circuit unit 113, ... 113n for impedance matching with a public communication network, a multi-frequency receiver 114, ... 114n for detecting a selection signal of information desired by a user, and a switching device ( 2) a trunk line connection circuit section 11, ... 11n consisting of a codec 115, ... 115n for converting an analog audio signal into a digital signal for digital switching, and the codec 115 Call the ring signal information and the highway interface unit 12 for interfacing with the switching device 2 by multiplexing and demultiplexing the digitalized voice signal It is a hayeoseo having a port processor 13 and the port processor 13 and call processing module interface section 14 which performs interfacing with a call processing unit (4) for transmitting to the processing unit (4).

In addition, as shown in FIG. 3, the switching device 2 changes the digital signals inputted in series from the trunk line connecting device 1 and the mass storage processing device 3 in parallel to facilitate switching, and then the data of the subsequent stage. A serial / parallel converter 21 for transmitting to the memory 22, a data memory 22 for inputting input signals in sequence, and performing a function of exchanging digital signals, and a parallel digital switched in the data memory 22; A parallel / serial converter 23 which converts signals in series and transmits them to the trunk line connecting apparatus 1 and the large capacity storage processing apparatus 3, and the command received from the call processing apparatus 4 to the subsequent connection memory 25. A call processing module interface unit 24 for interfacing to accumulate, a connection memory 25 for accumulating a command received from the call processing apparatus 4 and transferring it to the data memory 22, and the serial / parallel converter ( 21) and history Supplying a synchronizing signal to the converter 23 to the hayeoseo comprising a frame controller 26 to synchronize both the trunk line connecting device 1, a switching device (2), and mass storage processor 3.

In addition, the plurality of high-capacity accumulation processing apparatuses 3, ..., 3n are highway interface 310 for multiplexing and demultiplexing digital signals and interfacing with the switching apparatus 2, as shown in FIG. And a plurality of adaptive difference pulse code modulators 311, ... 311n for converting a 64K bps PCM signal into a 32K bps AD PCM signal in order to reduce the storage capacity of the audio signal. Between a plurality of highway interface devices 31, ... 31n, and a call processing device 4, each of which comprises a plurality of buffers 312, ... 312 n for buffering between the transmission speed and the high speed DKC transmission speed. A plurality of data processors 32 for controlling a plurality of disk control units 33,... 33n by receiving call processing information about information desired by a subscriber through the call processing module interface unit 36 for interfacing. 32n and a plurality of disks 34, ... 34n and 35, ... 35n. A plurality of disk control units 33,... 33n which access the locked information and transmit them at high speed to the switching device 2 via the highway interface device 31,... And the call processing module interface unit 36 for interfacing with the call processing apparatus 4 and the discs 34, ... 34n and 35, ..., 35n.

In the above description, the calculation of the expanded line capacity that can be processed per large-capacity storage device is A as the time taken to read audio information of a certain size from the disks 34 and 35, which are the processing capabilities of the disk control unit 33, A. If the allowable voice waiting time until the user starts listening to the first voice after inputting the desired information selection number with the telephone booter is B, the maximum line capacity that can be simultaneously serviced by one mass storage device is B / A. to be. In addition, the audio information of the disk must be transmitted once for every line within B hours. The size of the buffers 312 and 312n must be able to accumulate voice information of ADPCM for at least B hours. Can provide services.

Therefore, when the number of lines to provide the same service is M, and the maximum line capacity per N storage device is N, if M is larger than N, M / N units of mass measurement devices providing the same service are left, and the call processing device 4 By controlling the switching device 2 so that calls are evenly distributed among them, it is possible to provide a real time voice service to a large number of users.

In addition, in FIG. 1, when a user connected through the trunk line connecting device 1 wishes to receive another service provided by the mass storage device 3n while receiving the service provided by the mass storage device 3, When the data processor 32 of the storage device 3 sends this information to the call processing device 4, the call processing device 4 controls the switching device 2 to immediately generate a large amount of lines of the trunk line connecting device 1; Connected to the storage device 3n, service muting occurs due to the exchange of voice information between the storage device 3 and the storage device 3, which can occur in the case of the LAN connection method between the storage device 3 and 3n within the allowable voice waiting time B. Therefore, the total service time of all users can be significantly reduced regardless of the line capacity.

The call processing apparatus 4 reads a predetermined program stored in the memory 42 with the call processing information input from the trunk line connecting apparatus 1 as shown in FIG. 5 to control the operation of the entire system. A central processing unit 41, a memory 42 in which a predetermined operation program is stored, a clock and timer controller 43 for generating an interrupt for performing time and tasks to be processed in a periodic and real time in the system; , A serial input / output unit 44 for connecting a data terminal for management and maintenance of the system, a port interface module interface unit 45 for interfacing with the trunk line connecting device 1, and a switching device 2 And a switching module interface unit 46 for interfacing with the data processing module interface unit 47 for interfacing with the mass storage processor 3. Will the yeoseo.

Referring to the effects of the present invention made as described above with reference to FIGS. 1 to 5 as follows.

First, the operation of the trunk line connection device 1 according to the present invention will be described. As shown in FIG. 2, when a user makes a phone call from a public communication network, a ring signal is input to the trunk line connection circuit unit 11 through a line, so that the ring signal detection unit 111 ) Detects such a ring signal and applies it to the port processor 13 that performs a control function.

Accordingly, the port processing unit 13 applies the ring signal information received to the call processing unit 4, which is the main control unit, via the call processing module interface unit 14 for interfacing with the system main control unit. ), The corresponding trunk line circuit allocates one of the input and output circuits of the mass storage processor 3 so that the trunk line interconnector 1 and the mass storage processor 3 are interconnected with the switching information. , The switching device 2 and the mass storage processor 3 are transferred.

In addition, the call processing module interface unit 14 switches the relay contact switching unit 110 by operating the relay after receiving the switching information from the call processing unit 4, thereby responding to the call and returning to the switching device 2. By controlling the timeslot control unit 116 for selecting a communication path, the switching device 2 is connected to the user's communication path through the relay contact switching unit 110, the hybrid coil 112, the codec 115, and the highway interface unit 12. ).

Here, the hybrid coil 112 converts the line into four lines to separate the transmission sound and the reception sound.

The balance circuit 113 is connected to the secondary side tab of the hybrid coil 112 in order to bury the impedance with the public communication network.

The codec 115 converts an analog voice signal into a digital signal so that the switching device 2 can perform digital switching, and the highway interface unit 12 digitizes the voice signal through the codec 115. The furnace is multiplexed and demultiplexed to interface with the switching device 2.

That is, the trunk line connecting device 1 of the present invention receives a guide voice from the mass storage processing device 3 once the call path is connected so that the user inputs a desired information selection signal as a dual tone multi frequency signal. When the information selection signal is detected by the multi-frequency receiver 114 is input to the call processing device 4 through the port control unit 13 and the call processing module interface unit 14.

In such a state, the call processing apparatus 4 transmits a signal to the mass storage processing apparatus 3 so as to provide the user with the desired information, thereby transferring the desired information from the mass storage processing apparatus 3 through the switching device 2. By transmitting, the service can be provided.

At this time, if the information desired by the user is stored in another mass storage processing device, the call processing device 4 controls the switching device 2 so that the continuous service is possible by connecting the call path to another mass storage processing device.

In FIG. 2, the internal structure of the trunk line connecting circuit section 11n is the same as that of the trunk line connecting circuit section 11, and can be expanded according to the control capability of the port processing section 13.

Next, referring to the operation of the switching device 2 of the present invention, as shown in FIG. 3, the multiplexed digital signals are inputted from the trunk line connecting device 1 and the mass storage processing device 3 to connect the mutual communication paths. It will perform the function that makes it work.

That is, in order to easily switch the digital signal in series from the trunk line connecting device 1 and the large-capacity storage processing device 3, it is converted in parallel through the serial / parallel converter 21 and sent to the data memory 22. do.

In the data memory 22, the input signals are sequentially input and then a digital signal exchange function is performed. The command received from the call processing apparatus 4 through the call processing module interface 24 is connected to the connection memory 25. The signal of the trunk line connecting apparatus 1 is transmitted to the mass storage processor 3 according to the contents of the connection memory 25, and the signal of the mass storage processor 3 is transferred to the large capacity storage processor 3 according to the contents of the connection memory 25. The signal is transmitted to the mass storage processor 3, and the signal of the mass storage processor 3 performs the exchange function by outputting a digital signal from the memory to be transmitted to the trunk line connecting apparatus 1.

The parallel digital signal switched in the data memory 22 is converted in series again through the parallel / serial converter 23 and transmitted to the trunk line connecting device 1 and the mass storage processor 3 to complete the switching operation.

Here, the frame control unit 26 generates a synchronization signal in order to synchronize all the operations of the trunk line connecting apparatus 1, the switching apparatus 2, and the mass storage processing apparatus 3.

Next, the operation of the mass storage processing device 3 of the present invention will be described. As shown in FIG. 4, the data processor 32 uses the call processing module interface unit 36 which interfaces with the call processing device 4; Through the call processing device 4 receives the call processing information for the information desired by the subscriber to control the operation of the disk control unit 33 for controlling the disk operation.

Accordingly, the disk control unit 33 accesses the information stored in the disk 34 and transmits the information to the buffer 312 at high speed, and then switches through the adaptive difference pulse code modulation unit 311 and the highway interface unit 310. By transmitting to (2), the service is provided to the user.

At this time, the highway interface 310 performs the multiplexing and demultiplexing of the digital signal and simultaneously interfaces with the switching device 2, and the adaptive difference pulse code modulating unit 311 has a capacity of 64K bps to reduce the storage capacity of the audio signal. The adaptive difference pulse code modulator (AD PCM) is converted into a signal, and the buffer 312 performs a buffering role between a low AD PCM transmission rate and a high speed disk control (DKC) transmission rate by the buffer memory.

Here, the adaptive difference pulse code modulator 311n and the buffer 312n have the same configuration as the adaptive difference pulse code modulator 311 and the buffer 312, and the number of adaptive difference pulse code modulators and buffers per one disc controller may increase. The higher the voice waiting time, the lower the user's service quality, so that the disk control unit 33 can quickly read the voice information from the disks 34 and 35, and the user can reduce the user service time. The number of adaptive difference pulse code modulators and buffers per disk control unit is determined by the allowable voice waiting time at which the user starts to listen to the first voice after inputting the information selection number to expand the disk control units 33 and 33n in multiple stages. In addition, a plurality of disks 34 and 35, which are mass storage devices, may also be expanded in number depending on the disk processing capacity of the disk control unit 33.

Next, the operation of the call processing apparatus 4 according to the present invention will be described. On the basis of the call processing information input from the trunk line connecting apparatus 1 through the port interface module interface unit 45 as shown in FIG. According to a predetermined program stored in the memory 42, the trunk line connecting device 1 is controlled through the port interface module interface 45 by the control operation of the central processing unit 41, and the switching module interface 46 The switching device 2 is controlled through the control panel 2 and the mass storage device 3 is controlled through the data processing module interface unit 47.

At this time, the clock and timer controller 43 generates an interrupt signal for performing time and periodic and real time tasks in the system, and the serial, input, and output units 44 provide data for management and maintenance of the system. It is for connecting terminals.

As described above, according to the present invention, in an information service system such as audio text, voice answering machine, or information mailbox, which stores information such as voice, text, or image in a large capacity storage device, and then services the user, Alternatively, by increasing the storage capacity and information processing speed by switching such as packet switching, not only can the circuit capacity be continuously increased, but also the circuit can be stored in the normal operation state of the system after accumulating the same information in two or more mass storage processing devices. If one of the accumulators fails while providing services by allocating the load of the load, the other accumulator can service the telephone line without interruption by switching the switching device. Different information, such as voice, text, or video After storing the report, according to the user's request, services such as voice, text, or image can be collectively processed in one system.

Claims (5)

In an information service system, such as audio text, voice answering, or information mailbox, which stores information such as voice, text, or image in a mass storage processing device, and services the user, interfacing and switching ring signal information input through a line A plurality of trunk line connecting apparatuses 1, ... (1n) input to the call processing apparatus 4 of the apparatus 2, and the mass storage apparatuses 3, ... (3n) providing the same service. A switching device 2 for performing a control operation so that calls are distributed evenly among the call processing device 4 with a maximum number of line capacity M per line M / large capacity accumulator to provide the same service, and the plurality of trunk line connection devices (1), ... (1n) is installed in correspondence with the call processing device (4) to control the switching device (2) to connect the trunk line connecting device (1), ... (1n) lines to the voice standby Provide continuous voice service within time B A plurality of large-capacity accumulation processing units 3, ... (3n) and corresponding trunk lines circuits allocate one of the input and output circuits of the plurality of large-capacity accumulation processing units 3, ... (3b). And a call processing apparatus 4 for transmitting to the trunk line connecting apparatus 1, ... (1n) and the large capacity storage processing apparatus 3, ... (3n) and the switching apparatus 2, Service system with integrated switching function. According to claim 1, wherein the plurality of trunk line connection device (1), ... (1n) is relay contact switching unit 110, ... (110n) in response to the call by switching the ring signal through the line selected Ring signal detection unit (111), ... (111n) for detecting a ring signal through the line, hybrid coil (112), ... (112n) for separating transmission sound and reception sound, Balance circuit 113, ... 113n for impedance matching of the multi-frequency receiver 114, ... 114n and the switching device 2 for detecting a selection signal of information desired by the user In order to perform digital switching, the trunk line connection circuit section 11, ... 11n consisting of codecs 115, ... 115n for converting an analog audio signal into a digital signal, and the codec 115 Highway interface 12 for multiplexing and demultiplexing digitalized voice signals to interface with switching device 2, and ring signal information to call processor 4 Port processor 13 and the port processor 13 and the call processing unit (4) call processing module interface section 14, an information service system having a switching function, comprising a hayeoseo performs interfacing with for transmission. 2. The switching device according to claim 1, wherein the switching device (2) converts the digital signals inputted in series from the trunk line connecting device (1) and the mass storage processing device (3) in parallel to facilitate switching, and then the data memory at the rear end ( 22) a serial / parallel converter 21 for transmitting the input signal, a data memory 22 for inputting an input signal in sequence, and performing a function of exchanging digital signals; and a parallel digital signal switched in the data memory 22. A parallel / serial converter 23 for converting the signal to the trunk line connecting device 1 and the mass storage processing device 3 and storing the command received from the call processing device 4 in the subsequent connection memory 25; The call processing module interface unit 24 for interfacing the data, the connection memory 25 for accumulating the commands received from the call processing apparatus 4, and transferring them to the data memory 22, and the serial / parallel converter 21; And parallel / serial conversion Information with a switching function provided with a frame control section 26 for supplying a synchronization signal to the apparatus 23 and synchronizing all of the trunk line connecting device 1, the switching device 2, and the mass storage processing device 3 with each other. Service system. 2. The plurality of mass storage processors 3, ..., 3n are the highway interface 310 for multiplexing and demultiplexing digital signals and interfacing with the switching device 2, and voice. A number of adaptive differential pulse code modulators 311, ... 311n for converting 63K bps PCM signals into 32K signals to reduce the storage capacity of the signals, and low speed AD PCM transmission speed and high speed DKC by buffer memory Call processing for interfacing with the call processing device 4 and the highway interface devices 31, ... 31n, each of which consists of a plurality of buffers 312, ... 312n, which buffer between transmission speeds. A plurality of data processors 32, ... 32n for controlling a plurality of disk controllers 33, ... 33n by receiving call processing information on information desired by the subscriber through the module interface unit 36. And access the information contained in a plurality of disks 34, ... 34n and 35, ... 35n. And a plurality of disk control units 33, ... 33n which transfer to the switching device 2 via the highway interface device 31, ... 31n at high speed, and a plurality of disks that store information ( 34, ... 34n and 35, ... 35n, and the call processing module interface unit 36 for interfacing with the call processing apparatus 4; Service system. The central processing unit according to claim 1, wherein the call processing apparatus (4) reads a predetermined program stored in the memory (42) with the call processing apparatus input from the trunk line connecting apparatus (1) and controls the operation of the entire system. 41, a memory 42 in which a predetermined operation program is stored, a clock and timer controller 43 for generating an interrupt for performing time and periodic and real time tasks in the system, and The interface between the serial input and output unit 44 for connecting data terminals for management and maintenance, the port interface module interface 45 for interfacing with the trunk line connecting device 1, and the switching device 2 A switching device comprising a switching module interface unit 46 for performing a data processing module interface unit 47 for interfacing with the large-capacity accumulation processing apparatus 3. Information Service System with.

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