JPH0650915B2 - Data driven digital exchange - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data-driven digital exchange, and more particularly to a data-driven program-controlled digital exchange that sequentially activates processes that require input data. is there.

[Outline of Invention]

According to the present invention, in a data driven digital exchange equipped with a plurality of unit processing devices activated by input data, a plurality of unit processing devices are connected, and input data to which a call identification number is added is required between them. By sequentially activating the processing and executing the exchange operation, the program does not consider simultaneous processing of multiple calls, and processing of communication data, conversion, change of arrival order etc. are the same unit processing It can be realized by the device.

[Conventional technology]

In a conventional digital exchange, when constructing a system, the device is designed with an appropriate capacity (called a module),
For the part where the number of devices increases in proportion to the call volume or the number of terminals, modules are piled up to realize the maximum capacity. That is, the entire system is roughly divided into four subsystems of a communication path system, a signal processing system, a control system, and a maintenance operation system, and of these, the communication path system and the signal processing system each constitute a building block. The speech path system is composed of an integrated stage speech path and a distributed speech path, and the digital signal processing system is a subscriber line signal device, a trunk line signal device, a common line signal device and an analog trunk for PB signal reception, audible sound signal transmission and the like. Composed of equipment. These speech path system, digital signal processing system (which has the function of recognizing the speech path control request from the subscriber line or trunk line), and the speech path control system are configured separately in hardware. , The telephone line and the data line exchange call path, communication path system and dedicated hardware as a digital signal processing system are required. Further, since the control system of the communication path or the communication path is realized by the sequential processing type program control, there is a problem that the processing becomes complicated when handling a plurality of calls at the same time.

It has been proposed that the above-mentioned problem of the sequential program control can be solved by applying the data driven program control (IEICE Transactions J67-B, 1).
1, P1262-P1269).

FIG. 6 is a block diagram of a conventional data driven type exchange.

In FIG. 6, 1 is an analog telephone, 2 is a subscriber circuit, 3 is a time division speech path device, 4 is a signal processing device, 5 is a program storage device, 6 is a processing device determining device, and 7 to 9 are speech path control. The devices 10, 11 are common bus devices. As shown in FIG. 6, the configuration of the data driven program control device is such that a plurality of unit processing devices 6 to 9 activated by input data are connected to common buses 10 and 11 and a specific unit processing device (processing device The determining device 6 activates each of the unit processing devices 7 to 9 in response to the input of data from the program storage device 5. The above-mentioned document showing the prior art (p.1263)
According to the data flow switch, a control command is composed of a header for handling the control command and a data section (hereinafter referred to as a packet format of this command format). Among the unit processing devices, the speech path control device 7 mainly controls the subscriber circuit 2, the speech path control device 8 mainly controls the time division speech path 3, and the speech path control device 9 mainly controls the signal processing device 4. Control. Therefore, in order to increase the processing capacity, the data transfer capacity of the common buses 10 and 11 is increased, and a plurality of unit processing devices 6 to 9 having the same function are connected to the common buses 10 and 11 and are in an empty state. It is necessary to provide a device for locating the unit processing device to send data, and in order to improve reliability, the common buses 10 and 11 and the unit processing devices 6 to 9 are provided with a redundant configuration so that a specific unit can be provided. It is necessary to detect a unit processing device in which the processing device has failed and send the data to a spare unit processing device. This causes problems such as dispersion of processing load and complicated processing when an abnormality occurs. Furthermore, since the above proposal is to apply the data driven type program control only to the communication path control system, the problem that the dedicated hardware is required for the communication path system and the signal processing system is solved. It has not been.

Therefore, as a method of solving the problem that dedicated hardware is required for the call path system and the signal processing system,
A call path control system integrated switch has been proposed (see Japanese Patent Publication No. 56-2162). FIG. 7 is a block diagram of a unit processing device for forming a conventional speech path system and speech path control system integrated switch.

In FIG. 7, 11 and 13 are digital transmission lines, and 12
Is an input buffer register, 16 is a communication information memory device,
Reference numeral 17 is a program storage device, 15 is a processing device, 14 is an output buffer register, and 18 is a common bus.

The unit processing device of this integrated exchange is a storage program type channel exchange device, in which the memory units 16 and 17, the processing unit 15, and the input / output buffers 12 and 14 are connected to a common bus 18.
The communication information from the digital subscriber line or relay line is stored in the memory section 16, and this communication information (data) can be transferred to the output buffer register 14 according to the control information in the memory 17. I am trying. An integrated exchange is configured by connecting a plurality of the channel conversion devices. However, in this device, as shown in FIG. 7, since communication information of a plurality of calls stored in the memory unit 16 is sequentially read and processed, it is necessary to perform simultaneous processing of a plurality of calls by a storage program. In addition, the processing becomes complicated. In addition, when an abnormality occurs in the internal processing of the transfer destination unit processing device of the output data, the abnormality is detected in the transfer source unit processing device and the output data is transferred to another unit processing device. Time measures are needed.

[Problems to be solved by the invention]

As described above, the conventional digital exchange requires separate hardware for the communication path or communication path system and the signal processing system, and since the processing is performed by the sequential program control, multiple calls can be processed simultaneously. There was a problem that it was difficult to do. So, as a solution of the former, an integrated exchange that connects a plurality of channel conversion devices,
As a solution to the latter, data-driven exchanges have been proposed respectively, but in the former, the processing of multiple calls by software and the processing at the time of abnormality occurrence become problems, and in the latter,
The problem remains that the hardware cannot be integrated.

An object of the present invention is to solve these conventional problems, to realize communication data processing by the same unit processing device without the software being aware of simultaneous processing of multiple calls, and to easily perform processing when an abnormality occurs. , Telephone exchange, data line exchange,
It is to provide a data-driven digital exchange that integrates packet exchange.

[Means for solving problems]

To achieve the above object, a data driven digital exchange of the present invention comprises a plurality of data input terminals, a plurality of data output terminals, and program storage means for designating a processing function type activated by an input from the data input terminals. , Means for detecting the presence of data to be processed by inputting the communication path information and control information into the input terminal without distinction, a plurality of arithmetic processing means for executing processing of the detected data in parallel, and arithmetic processing The processing is started when all the data resulting from the execution by the means are collected, and if the processing function type to be started is not specified in the program storage means or the processing cannot be executed, the input data is left as it is. A data-driven unit data processing device having means for transferring to a specific transfer destination in the form of More activated result data processing was, is characterized by successively transferred to another unit data processing apparatus.

[Work]

FIG. 1 is a block diagram of a data driven type unit processing unit (UM) which constitutes the digital exchange of the present invention.

In FIG. 1, IN0 to INn are data input terminals, O
UT0 to OUTn are data output terminals, 21 is a device for determining whether to start processing corresponding to input data, 22 and 23 are hardware for executing the process, that is, a processing device, 24 is a storage device for storing programs and data, and 27 is The data input detection devices 25 to 26 are various processing circuits designated in the storage device 24. The data input to the input terminals IN0 to INn is communication information or communication path control information,
Since a call identification number and a data type are added to each data (packet format), a process execution instruction corresponding to the call identification number or data type of the input data is input from the storage device 24 to the processing device 22, Sent to 23,
These instructions are executed by the processing units 22 and 23. As described above, in the present invention, the call identification number is added to the communication path control information and the communication information, and when these data are input, the process corresponding to the input data is started, and the process cannot be started. In this case, a plurality of unit processing devices having a function of outputting input data as they are are connected to form an exchange.

〔Example〕

FIG. 2 is a block diagram of a data driven digital exchange showing an embodiment of the present invention, showing an exchange constituted by connecting a plurality of the unit processing devices of FIG.

In FIG. 2, 111 to 11n and 121 to 12n are analog telephones, 131 to 13n are digitized relay lines, and 141 to 14n and 151 to 15n are digital conversion functions of analog signals and ringing tone sending functions. Subscriber circuits having UM11 to UM14, UM21 to UM
24, UM31 to UM34 are all unit processing units shown in FIG. 1, 161 to 16n and 171 to 17n are upstream digital subscriber lines from the analog telephones 111 to 12n, and 181 to 18n and 191 to 19n are analog telephones 111. Downstream to ~ 12n is a digital subscriber line.

The operation of FIG. 2 will be described with reference to FIGS.
FIG. 3 is an explanatory diagram of the operation of the exchange from the detection of the call from the push-button telephone 111 to the reception of the selected numeral and the transfer of the communication information to the analog telephone 11n in the exchange of FIG. Unit processing device UM11 in the figure
This is an example using only ~ 14. It should be noted that the digitized subscriber lines are multiplexed and the unit processing devices UM11 to 14 are used.
It is also possible to house it in.

The UM 11 is an upstream digital subscriber line 161 to 16n.
, A processing function for detecting a loop state change of the analog subscriber line connecting the analog telephones 111 to 11n and the subscriber circuits 141 to 14n, a processing function for adding a call identification number, and an upstream digital subscriber line. 161-16
It is a unit processing device having a processing function of distributing communication information from n based on signal state information of a call. Also, UM
Reference numeral 12 is a unit processing device that connects the downstream digital subscriber lines 181 to 18n, and has a communication information transfer processing function to the downstream digital subscriber lines and a processing function that determines a call progress state. The UM 13 is a unit processing device having a function of analyzing and processing an incoming analog telephone selection digit. Further, the UM 14 is a unit processing device having a processing function of converting a push button signal into an incoming analog telephone selection numeral.

Analog telephones 111 to 11n and subscriber circuits 141 to 1
When the information indicating the loop state of the analog subscriber line connecting to 4n is converted into a digital signal and input to the UM 11, the loop state change detection process is activated. UM1
When the change in the loop state is detected in 1, the process for adding the call identification number for identifying the analog telephone 111 to the change detection information is started, and the change detection information is set to U.
Transfer to M12. When the change detection information is input, the UM 12 starts a process of reading the call progress status information of the analog telephone 111 from the data storage device, and when the reading of the call progress status information is completed, the next progress is made. Start the process for determining the state. At this time, the status information of the analog telephone set 111 to be read out is "empty", and it is determined that the status of the analog telephone set 111 is "receiving numbers" by inputting the change detection information, and is set in the data storage device. It Next, when push button signal information is input to the UM 11 from the analog telephone 111, the UM 11
Sends to the UM12 information for reading the call progress status information of the analog telephone 111, and "Numeric receiving" is input to the UM11 as status information from the UM12. U
In M11, when the push button signal information and the status information "number being received" are complete, the transfer destination of the push button signal information is determined, and the push button signal information is transferred to the UM14. In the UM 14, the conversion processing into the selected numeral is started by the input of the push button signal information, and the processing result information is transferred to the UM 13.

In the UM13, the numerical analysis processing is started by inputting the selected numerical information, the incoming analog telephone 11n is determined,
Transfers the incoming telephone information to the UM 12. In UM12,
"Number being received" as status information of the analog telephone 111
Is already set in the data storage device, and when the incoming call telephone information is input, it is determined to set the state of the analog telephone 111 to the “calling state”, and it is set in the data storage device. Next, a process for sending a ringing tone to the subscriber circuit 14n connected to the incoming analog telephone 11n is activated.

When the analog telephone 11n, which is emitting the ringing tone, responds, the UM 11 receives information about the change in the loop state of the analog subscriber line connecting the analog telephone 11n and the subscriber circuit 14n, as in the case where the analog telephone 111 originates a call. The analog telephone 111 is transferred to the UM 12, the state of the analog telephone 111 is determined to be “communication”, and the state is set in the data storage device. At this time, when the communication information is input to the UM 11 from the analog telephone 111, the status information “communication” of the analog telephone 111 is read from the UM 12, and the information from the analog telephone 111, which has been transferred to the UM 14 until now, is transferred to a plurality of pieces. It decides to transfer to the UM 12 to which the downstream digital subscriber line is connected. In UM12,
When the communication information from the analog telephone 111 is input,
The processing for transferring the communication information to the incoming analog telephone 11n is started by detecting the incoming telephone information already input.

The above operation is only a call connecting operation when a call is made from the analog telephone 111. However, when the UM 13 is performing the analysis processing of the selected digit from the analog telephone 111, the UM 14 sends the call from another analog telephone. The process of converting push button signal information into selected numbers can be executed in parallel.

As described above, in the exchange shown in this embodiment, the communication information to which the call identification information is added and the communication path control information itself start the processing sequentially, so that the program does not need to be aware of the simultaneous processing of a plurality of calls. .

However, since communication path control information and communication information from a plurality of analog telephones and unit processing devices are input to the same unit processing device, when the processing cannot be executed by the unit processing device, the information flow is It will stop. In order to prevent this, the control processing unit UM15 for converting the push button signal into the selected numeral may be connected to the UM14 in FIG.

FIG. 4 is an explanatory diagram of the in-house connection operation of the push-button telephone according to the embodiment of the present invention.

In FIG. 4, a control processing unit UM15 which newly converts the push button signal into a selected numeral in the circuit arrangement of FIG.
Is provided. When the push button signal information is input to the UM14 by connecting the UM15, if it is determined that the conversion process into the selected numeral is impossible, the push button signal information is transferred to the UM15 as it is and selected by the UM15. The conversion process to numbers is executed.

In this way, when processing cannot be started, by connecting unit processing devices that transfer input data as is to a specific transfer destination, function distribution by destination specification function and free resource selection can be performed. Since load distribution by function can be performed at the same time, load distribution processing, which was complicated with conventional exchanges, can be facilitated, and a unit processing device with a failure can be detected at the data source and sent to another unit processing device. Even if it is not sent, the functions can be distributed by the destination specifying function and the normal unit processing device can be selected at the same time.

In FIG. 3, the operation is described only for the connection within the own station, but by connecting the digitized relay line and the unit processing device having the signal processing function of the relay line, the outgoing connection can be performed. , Incoming connections, and relay connections can be performed in the same way.

Further, when the function of the conference call is added to the exchange of the present invention, it can be easily realized by adding the function of synthesizing the communication information from a plurality of analog telephones to the UM 15 in FIG. That is, if the call progress status information read from the UN 12 by the UM 11 is “in a conference call”, the UM 1
Control information for activating the communication information synthesizing process is added to the communication information input from the analog telephone 1 and transferred to the UM 14. At this time, UM14
Since there is no communication information composition processing function, the input information is transferred to the UM 15 as it is, and if communication information from another analog telephone has already been input, communication information composition processing is started and processing result information Are transferred to the downstream digital subscriber line via UM13 and UM12.

Although the case where only an analog telephone is accommodated has been described above, it is also possible to accommodate a home device that handles a packet-type digital signal together.

FIG. 5 is a block diagram of an integrated digital exchange for telephone exchange and data packet exchange showing an embodiment of the present invention.

Since the digital exchange of the present invention has a configuration in which communication information is input to the unit processing device to start processing,
Directly inputting a packet-type digital signal to start the processing can be realized by the same unit processing device as the telephone exchange. That is, as shown in FIG. 5, the packet terminal 11
Unit processing unit UM1 directly connected to 1n 'to 11n'
6 and 17 are added and interconnected to UM11 and UM12, respectively. The UM16 and UM17 are connected as shown in FIG. 5 by setting a signal transmitting / receiving function corresponding to the type of in-home equipment handling a packet type digital signal, a packet sequence number assembling processing function, and the like. Home equipment 111 '~ 1
The selected number packet input from 1n ′ activates the selected number analysis process of the UM13, and the UM17 performs the process of adding the destination information and the sequence number to the data packet and the process of assembling the data packet according to the sequence number. It starts up and transfers the data packet to the home equipment or digital trunk line. Also, for home appliances that handle non-packet type digital signals, by adding the packet editing processing function to the unit processing unit, the data line exchange or data packet exchange and telephone exchange can be integrated without adding dedicated hardware. It is possible to configure the digital exchange.

As described above, the data driven type digital exchange of the present invention has the following advantages because it is configured by connecting a plurality of unit processing devices having a data processing type data processing function.

(a) Processing of communication data, conversion, change of arrival order, spatial distribution, and the like can be realized by the same unit processing device. (b) It is possible to realize a digital exchange that integrates not only telephone exchange but also data line exchange and data packet exchange. (c) Since the processing that requires the input data to which the call identification number is added is sequentially activated and the switching operation is executed, the software operates without being aware of the simultaneous processing of a plurality of calls. (d) When a process corresponding to input data cannot be activated in a certain unit processing device, by connecting another unit processing device that outputs the input data as it is, the destination designation function Function distribution and load distribution by free resource selection function can be realized at the same time, unit processing units can be easily added or new functions can be added along with expansion of processing capacity, and normal unit processing unit selection function is also provided. Therefore, the processing when an abnormality occurs becomes easy.

〔The invention's effect〕

As described above, according to the present invention, the processing that requires the input data to which the call identification number is added is sequentially activated and the exchange operation is executed. Therefore, the program is aware of the simultaneous processing of multiple calls. In addition, it is possible to execute a control operation of a communication path or a communication path system and a signal processing system by a common unit processing device, and to realize a digital exchange that integrates telephone exchange, data line exchange, and packet exchange. Is easy to process.

[Brief description of drawings]

FIG. 1 is a block diagram of a unit processing device constituting a data driven digital exchange of the present invention, FIG. 2 is a block diagram of a data driven digital exchange showing an embodiment of the present invention, and FIG. FIG. 4 is an explanatory view of the internal connection operation of the push-phone telephone in FIG. 4, FIG. 4 is an explanatory view in the case of expanding the exchange processing capacity in FIG. 2 and a case where a new function is added, and FIG. A block diagram showing an integrated exchange for packet exchange, FIG. 6 is a block diagram of a conventional data driven exchange, and FIG. 7 is a conventional communication path system.
It is a block diagram of the unit processing device which comprises a speech path control system integrated exchange. IN0 to INn: data input terminals, OUT0 to OUT
n: data output terminal, 21: processing start availability determination device, 2
2, 23: arithmetic processing device, 24: program / data storage device, 25, 26: various processing circuits, 27: data input detection device, 111-11n, 121-12n: analog telephone, 131-13n: digital relay line, 141 ~
14n, 151-15n: Subscriber circuit, 161-16
n, 171 to 17n: upstream digital subscriber line, 181
-18n, 191-19n: Downlink digital subscriber line,
UM11 to UM14, UM21 to UM24, UM31 to
UM34: unit processing device, UM15 to UM17: unit processing device when functions are added, 111 'to 11n': digital home equipment.

Claims (2)

[Claims] 1. A plurality of data input terminals, a plurality of data output terminals, program storage means for designating a processing function type activated by an input from the data input terminals, and communication path information and control information at the input terminals. Inputting without distinction, means for detecting the presence of data to be processed, a plurality of arithmetic processing means for executing the processing of the detected data in parallel, and the result data executed by the arithmetic processing means If the processing function type to be started is not specified in the program storage means or the processing cannot be executed, the input data is sent to the specific transfer destination as it is. A unit for processing data, which comprises a unit for transferring data, and a plurality of the unit data processing devices are connected to each other, and the result data of the processing started by the input of the data. A data-driven digital switch, characterized in that successively transferred to another unit data processing apparatus. 2. The unit data processing device, when connecting an analog home device or an analog relay line,
A digital conversion means is connected to the input / output terminal, and communication path control information and communication information of a plurality of types of calls input from a plurality of different types of home appliances and trunk lines are input without distinction, and a plurality of arithmetic processes are performed. The means are activated in parallel, the processing of communication information input from home appliances and trunk lines, the change of arrival order,
2. A data driven digital exchange according to claim 1, wherein output terminals for subscriber lines and relay lines are selected and transferred.