JPH0837557A - Telephone exchange system - Google Patents

Abstract

PURPOSE:To automatically set time information at starting time by providing a function for transmitting the time information at a long-distance digital exchange and by providing a function for automatically receiving that time information at a local digital exchange. CONSTITUTION:Local digital exchanges 1-1 to 1-n for housing respective subscribers are housed and connected to a long-distance digital exchange 2 as the high-order repeating exchange of these exchanges in a maintenance area ME but time information T1 is always transmitted from this long-distance digital exchange 2 through a highway 3 to the respective local digital exchanges 1-1 to 1-n. Then, by receiving this time information T1 from the highway 3, at the local digital exchanges 1-1 to 1-n, the time information can be set without any human intervention at the respective local digital f& exchanges 1-1 to 1-n. In this case, the long-distance digital exchange 2 can receive the time information T1 from the high-order digital exchange and can transmit it to the local exchanges 1-1 to 1-n as well.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone exchange system, and more particularly to a time information supply system in a telephone exchange system including a local digital exchange which accommodates subscribers.

In general, the calculation of a call charge in a telephone service is performed by accumulating a time between a call start time and a call end time based on time information contained in a telephone exchange (digital exchange).

The source of such time information is a time signal service (telephone number "117"), and it is necessary to set such a time signal service in the telephone exchange by some means.

[0004]

2. Description of the Related Art FIG. 9 shows a conventionally used telephone exchange system. In this figure, a local station system and an area station system are shown. The local station system is a digital exchange. And a controller (CON for controlling the communication path device 11
T) 12 and the day and night information sending device (DNTE) and the synchronous clock supply device (TCS), respectively, which receive the day and night information and the synchronous clock (basic pulse), and control the alarm monitoring network for the controller 12. Alarm monitoring network control device (ALNC) 13 for performing the above, and personal computer maintenance terminal device (PC-) for setting time information to the controller 12.
STD) 14, the subscriber terminal 15 connected to the communication path device 11, and the time signal service device 3 in the area station system.
It is composed of a time signal service Toki Trunk (TKE) 20 for obtaining time information from 1.

In such a conventional telephone exchange system, the trunk 20 is controlled by the well-known control by dialing the telephone number "117" for the time signal service from the subscriber terminal 15 to obtain the time information. The time signal service torch generated from the time signal service device 31 is connected to the time signal service device 31 and can be heard by the subscriber terminal 15 via the communication path device 11.

The operator then sets the time information heard at the subscriber terminal 15 from the personal computer maintenance terminal 14 based on the operation code for time setting.

The set time information is given to the controller 12, and the controller 12 accumulates and counts it to charge the call charge.

Since an error occurs in the counting in the controller 12, the time is corrected by obtaining the day / night information from the day / night information sending device DNTE and the basic pulse (1 second pulse) from the synchronous clock supply device DCS. It is carried out.

[0009]

Since such a telephone exchange system is composed of a huge amount of hardware / software parts, it has a very large failure element.

Therefore, if a failure corresponding to the system disconnection occurs now, the system enters the self-starting operation state, automatically reads the system file, becomes the operating state, and restarts each processing.

However, since the time for charging the fee is not automatically set, the call until it is set becomes a non-charged call. Therefore, there is a problem that the operator must set the time immediately.

On the other hand, Japanese Patent Application Laid-Open No. 63-15191 is cited as a conventional example which has solved the problem of such manual setting by the operator. In this case, in order to correct the time, the time signal service device is periodically provided. To receive the information and perform time correction of one station,
This regular access interval is usually too long, for example, one hour, and there is a problem that the non-billing time becomes about one hour when a failure occurs.

Further, in JP-A-63-33962,
A technique for obtaining time information from a higher station as a voice signal and receiving the time information by voice recognition of this voice signal has been disclosed, but in this case, a more expensive device called voice recognition is required. was there.

Accordingly, the present invention enables a telephone exchange system including a local digital exchange for accommodating subscribers to quickly and automatically set time information at the time of system startup or failure startup. With the goal.

[0015]

In order to achieve the above object, a telephone exchange system according to the present invention has a local digital exchange 1- that accommodates subscribers, as shown in principle in FIG. 1 to 1-n (hereinafter, may be collectively referred to as 1)
In a telephone exchange system composed of a long distance digital exchange 2 accommodating at least one local digital exchange 1, the long distance digital exchange 2 is provided with means for transmitting time information, and the local digital exchange 1 is It is characterized in that it comprises means for automatically receiving the time information.

In the above telephone exchange system, the long distance digital exchange 2 can receive the time information TI from the upper exchange and send it to the local digital exchange 1.

Further, the telephone exchange system according to the present invention is
As shown in principle in FIG. 2 (1), in a telephone exchange system composed of a local digital exchange 1 (generic name) accommodating subscribers and a monitoring device 4 for monitoring the local digital exchange 1, The monitoring device 4 is provided with means for sending the time information to the local digital exchange 1, and the local digital exchange 1 is provided with means for automatically receiving the time information TI.

In the above telephone exchange system, the monitoring device 4 can receive the time information TI from the host exchange and send it to the local digital exchange 1.

The above time information TI can be time-division multiplexed with other information on one highway line for each local digital exchange 1.

Further, the above-mentioned local digital exchange 1
Has means for automatically receiving the time information TI at the time of initial startup or at the time of restart processing.

[0021]

In the principle diagram (1) of the present invention shown in FIG. 1, the local digital exchange 1-1 to accommodate each subscriber is provided.
1-n is accommodated and connected to a toll digital exchange 2 which is a higher-level relay exchange of these exchanges in the maintenance area MS, and from the toll digital exchange 2 to each of the local digital exchanges 1-1 to 1-n. On the other hand, highway 3
The time information TI is constantly transmitted via the.

The local digital exchanges 1-1 to 1
In -n, by receiving this time information from the highway 3, it becomes possible to set the time information in each local digital exchange without human intervention.

In this case, the toll digital exchange 2 receives the time information TI from the upper digital exchange as shown by the dotted line.
In response, it may be sent to the local digital exchanges 1-1 to 1-n.

Further, the frame format of the time information TI flowing through the highway 3 which connects the long distance digital exchange 2 and each local digital exchange 1-1 to 1-n is shown in FIG.
As shown in (2), time information data can be inserted into an empty slot of any subscriber channel accommodated for one highway and time-division multiplexed with other information.

In the principle diagram (part 2) of the present invention shown in FIG. 2, the time information generating means is provided in the long distance digital exchange 2 in the case of FIG. 1, but is provided in the monitoring device 4.

That is, the local digital exchange 1 accommodating each subscriber normally collects the monitoring areas and monitors them by the monitoring device 4.

Therefore, the monitoring device 4 is provided with a means for generating time information, or in the same manner as described above, the time information TI is received from the upper station and each local digital exchange 1-1 to 1 under the control of the local digital exchanges via the highway 3. By constantly transmitting the time information TI to -n, each local digital exchange can receive the time information TI and set the time without human intervention.

The time information is preferably set to be automatically received when the local digital exchange is initially started up or when the restart processing is performed.

[0029]

FIG. 3 shows an embodiment of the principle diagram (part 1) of the present invention shown in FIG. 1. In this embodiment, the local digital exchange 1 is a time-division channel device (TDNW) 11 Controller (CONT) 12 and alarm monitoring network controller (ALN
C) 13 and PC maintenance terminal device (PC-STD) 14
And a subscriber terminal 15, which is similar to the conventional example shown in FIG. However, the alarm monitoring network control device 13
Is connected to the time division speech path device 11 and the controller 12.

However, in the case of this local digital exchange 1, it is connected to the day / night information sending device DNTE and the synchronous clock supply device DCS installed in the remote digital exchange 2, and as shown in FIG. The time signal service device 31 in the station system and the time signal service talkie trunk 20 in the local station system are not used.

Also, in this embodiment, the subscriber terminal 15
An LCF 16 and a subscriber line signal connection device (LSC) 17 are connected in series between the and the time division speech path device 11, and the subscriber line signal connection device 17 is also connected to the controller 12.

Further, the time division speech path device 11 is a time division connector (T) for interfacing highway signals such as 2M.
It is connected to the toll digital exchange 2 from the multiplexer (MUX) 19 via the SC) 18.

The long distance digital exchange 2 is similar to the local digital exchange 1 in that the time division speech path device 21 and the controller 2 are provided.
2 and alarm monitoring network control device 23 and personal computer maintenance terminal device 2
4 and a multiplexer 25 corresponding to the multiplexer 19 in the local digital exchange 1,
The output signal of the multiplexer 25 is divided by the time division connector 26 and given to the time division speech path device 21 and the controller 22.

Further, the time division speech path device 21 is similarly connected to another digital exchange through the time division connector 27 and the multiplexing device 28.

Further, as described above, the alarm monitoring network control device 23 is adapted to receive day / night information and basic pulses from, for example, a higher-ranking exchange, and is also connected to the personal computer maintenance terminal device 24.

In the operation of such an embodiment, the time information is the alarm monitoring network control unit 2 of the toll digital exchange 2.
In 3, the personal computer maintenance terminal device 24 is turned on while listening to the set year, month, day, hour, and minute by the time signal service.

Then, this input data is synchronized with day and night information and basic pulses, and the local area digital exchange is operated through the alarm monitoring network control device 23 → time division communication channel device 21 → time division connector 26 → multiplexing device 25. Send to 1.

In the local digital exchange 1, the time information is multiplexed by the multiplexer 19 → time division connector 18 →
The time-division communication channel device 11 is received by the route of the alarm monitoring network control device 13, and the control device 12 is sequentially notified.

Then, the controller 12 counts the call time of the subscriber based on this time information.

FIG. 4 shows an embodiment of the alarm monitoring network control unit (ALNC) 23 in the toll digital exchange 2 shown in FIG. 3, in which day and night information (DNTE) and basic pulse (DCS) are inputted. A memory timing accumulation / counter unit (MTM unit) 231; a processor interface unit (PRIF unit) 232 connected to the counter unit 231;
A highway interface unit (HWIF unit) 233 connected to the interface unit 232 and a personal computer control device (PCCE) connected to the personal computer maintenance terminal device 24.
Section 234, the processor interface section 232 is interconnected with the controller 22, and the highway interface section 233 is connected with the time division speech path device 21.

In the operation of the alarm monitoring network control device according to this embodiment, the time information input by the personal computer maintenance terminal device 24 is transmitted to the controller 2 via the personal computer control device 234.
2 will be notified. The controller 22 notifies the memory timing accumulation / counting unit 231 of this time information via the processor interface unit 232.

The counting unit 231 counts the time information with the day / night information (DNTE) and the basic pulse (DCS) based on the time information.

As a result, the controller 22 reads the time information from the counting unit 231 periodically (for example, every 5 minutes) via the processor interface unit 232, compares it with the software operation clock of the controller 22, and the two do not match. When it is, correction is performed.

On the other hand, the processor interface section 232
Sends the time information of the counting unit 231 to the time division speech path device 21 via the highway interface unit 233 and sends it as time information to each local digital exchange 1 as described above.

FIG. 5 shows an embodiment of the memory timing accumulation / counting unit 231 shown in FIG. 4, and in this embodiment, day / night information (DNTE) and basic pulse (DCS).
2311 for inputting the
Storage unit 2312 that stores the output signal of the
3 and 3.

In the operation of the counting unit 231, the processor interface unit 23 is connected to the control unit 2313.
When the time information writing operation is transmitted from 2, the time information is set in the storage unit 2312.

The counter 2311 has a basic pulse (DCS).
Clock pulse of the counting pulse (eg 500
ms) is created and sent to the storage unit 2312, and also day / night information (DNTE) is sent to the storage unit 2312.

The storage unit 2312 sequentially updates the time information with the clock pulse from the counter 2311 and stores it.

This updated time information is stored in the control unit 2313.
Via the processor interface unit 232 and the highway interface unit 233 of the alarm monitoring network control device 23.
Will be sent to the time division speech path device 21 via.

FIG. 6 shows a highway frame format of time information in the internal highway interface section 233 of the toll digital exchange 2 shown in FIG.

That is, the time information sent from the storage unit 2312 shown in FIG. 5 to the processor interface unit 232 enters the highway interface unit 233 and is edited into the 2M highway frame format as shown in the figure. In this example, it is composed of 1 ms multi-frame consisting of 8 frames.

Further, each frame is 125 μs and, for example, 3
It is composed of two time slots (TS), and these time slots accommodate call information for each local digital exchange except TS0.

Of these, the time slot TS0 is composed of channels corresponding to the subscriber terminals as shown in FIGS. 1 and 2, and one channel (CH) is allocated to time information to make the first frame. From frame 7 to frame 7, one piece of time information is formed.

In the above example, the maximum number of local digital exchanges is 31.

FIG. 7 shows an embodiment of the alarm monitoring network controller (ALNC) 13 in the local digital exchange 1. In this embodiment, the highway interface section 131 connected to the time division communication channel apparatus 11 and the highway interface section 131 are connected. The processor interface unit 132 is connected to the highway interface unit 131, and the processor interface unit 132 is connected to the controller 12.

Therefore, the time information sent from the long distance digital exchange 2 enters the alarm monitoring network control device 13 and can be constantly notified by the route of the highway interface 131 → the processor interface 132 → the controller 12. .

FIG. 8 shows a flowchart in the controller 12 of the local digital exchange 1 when the above time information is set, at the time of initial startup (step S1).
When performing the restart process (step S2), the controller 12 receives the time information from the professor interface unit 132 of the alarm monitoring network controller (ALNC) 13 (step S3). It is possible to shift to the charging state based on (step S
4).

In the above embodiment, the embodiment corresponding to the principle diagram (No. 1) shown in FIG. 1 is shown, but the embodiment corresponding to FIG. You can think the same way.

[0059]

As described above, according to the telephone exchange system of the present invention, a function of transmitting time information to a long distance digital exchange or a monitoring device is provided and a time digital information is automatically received by the local digital exchange. Since it is configured so as to be provided, it becomes possible to greatly improve in terms of maintenance and service without setting time information by an operator intervening in each local digital exchange.

[Brief description of drawings]

FIG. 1 is a block diagram showing a principle diagram (1) of a telephone exchange system according to the present invention.

FIG. 2 is a block diagram showing a principle diagram (part 2) of the telephone exchange system according to the present invention.

3 is a block diagram showing an embodiment of the principle diagram shown in FIG. 1. FIG.

4 is a block diagram showing an embodiment of an alarm monitoring network controller (ALNC) in the toll digital exchange shown in FIG.

5 is a diagram illustrating a memory timing accumulation / counting unit (M
It is a block diagram showing an example of a TM section).

FIG. 6 is a highway frame format diagram inside a long distance digital exchange used in the telephone exchange system according to the present invention.

7 is a block diagram showing an embodiment of an alarm monitoring network controller (ALNC) in the local digital exchange shown in FIG.

FIG. 8 is an operation flowchart of the controller when initializing or restarting the telephone exchange system according to the present invention.

FIG. 9 is a block diagram for explaining a conventional example.

[Explanation of symbols]

 1 Local digital exchange 2 Out-of-town digital exchange 3 Highway 4 Monitoring device 11,21 Time division communication line device (TDNW) 12,22 Controller (CONT) 13,23 Alarm monitoring network control device (ALNC) 14 Personal computer maintenance terminal device (PC-SDT) TI time information In the figure, the same reference numerals indicate the same or corresponding parts.

Claims (6)

[Claims] 1. A telephone exchange system comprising a local digital exchange for accommodating subscribers and a long distance digital exchange for accommodating at least one local digital exchange, wherein the long distance digital exchange sends time information. And a means for automatically receiving the time information by the local digital exchange. 2. The telephone exchange system according to claim 1, wherein the long distance digital exchange receives the time information from a host exchange and sends it to the local digital exchange. 3. A telephone exchange system comprising a local digital exchange that accommodates subscribers and a monitoring device that monitors the local digital exchange, wherein the monitoring device sends the time information to the local digital exchange. And a means for automatically receiving the time information by the local digital exchange. 4. The telephone exchange system according to claim 3, wherein the monitoring device receives the time information from a host exchange and sends it to the local digital exchange. 5. The telephone exchange system according to claim 1, wherein the time information is time-division multiplexed with other information on one highway line for each local digital exchange. And telephone exchange system. 6. The telephone exchange system according to claim 1, wherein the local digital exchange has means for automatically receiving the time information at initial startup or restart processing. Telephone exchange system.