CN1197346A

CN1197346A - Method for dualizing billing data by using database in telephone exchange system

Info

Publication number: CN1197346A
Application number: CN98103662A
Authority: CN
Inventors: 林庆万
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 1997-04-23
Filing date: 1998-01-20
Publication date: 1998-10-28
Also published as: KR19980077846A; JPH10304410A; RU2128402C1; KR100216352B1

Abstract

The invention relates to a method of dualizing bill data using a database in a telephone switching system, wherein the telephone switching system uses a rapid memory to replace a hard disk drive in a prior switching system. A renewal value of a database file is stored in a static random access memories in time, and then the renewal value in the static random access memories is regularly stored in the rapid memory to reserve.

Description

In telephone switching system, utilize database to make the method for billing data dualization

The present invention relates to a kind of method that is used for managing the telephone switching system billing data, more specifically say, relate to, make the method for billing data dualization by using existing database in telephone switching system.

General electronic voice switching system has the structure that schematically shows as Fig. 1.Among the figure, CPU (CPU) 10 is according to the whole work of the control program control telephone switching system that stores in ROM (read-only memory) 20, with forward call and various telephone services are provided.ROM20 stores control program and the initial service data of CPU10.SRAM (static RAM) the 30th, the buffer of CPU10 temporarily is stored in the data that produce in the control program implementation.The subscriber phone of 40 pairs of extension lines of extension subscriber circuit provides the audio-frequency current of voice band.Network 50 is changed various tones and voice data under the control of CPU10.Tone generator 60 produces various tones under the control of CPU10, and the tone that produces is offered network 50.Ring generator 70 produces the bell signal of square wave form under the control of CPU10.DTMF (dual-tone multifrequency) receiver 80 is analyzed MFC (multifrequency code) signal that produces from extension subscriber line circuit 40, and will offer CPU corresponding to the numerical data of MFC signal.DTMF transmitter 90 produces the MFC signal under the control of CPU10.Catch central office line under the control of central office line circuit 100 and CPU10,, and connect the input signal that receives from central office line with form exchange line loop.In addition, this telephone switching system also comprises ROM (dynamic ram) 221, printer 230, the tape (MT) 120 as additional storage, maintenance terminal 200 and is connected to I/O unit 220 as another additional storage HDD 108 (hard disk drives).

Usually, the billing data that will produce in telephone exchange system at first is stored among the HDD 108.Then, billing data is stored in the tape 120 regularly, uses so that calculate accurately telephone charges by the accounting of Accounting Department.Specifically, after conversation is finished, billing data temporarily is stored among the SRAM 30 as main storage,, supports by HDD 108 as additional storage when scheduled time back or according to the store instruction of keeping in repair terminal 20 in the past.Under abnormal situation,, the billing data of supporting in HDD 108 can be copied among the SRAM 30 if the billing data that is stored among the SRAM 30 has been deleted.In addition, after each conversation is finished, billing data is stored in working storage and the shelf storage, so that the billing data that will be stored under one of two memories abnormal conditions in the memory of normal side is transferred in the memory of improper side.By this way, two memories can have same billing data.Yet, all under the abnormal conditions, will be transferred to the billing data of in HDD108, supporting in work and the shelf storage at two memories.Billing data is stored into HDD 108 and the billing data supported is transferred to the aforesaid operations of SRAM 30 from HDD 108 from SRAM, the record keeping work of switching system is caused very big burden.Therefore, the programmer should distribute mass part to handle to carry out dualization when the work of design bill.In addition, the bill work of carrying out this operation will take a long time.And the billing data request according to shelf storage will be transferred to shelf storage to billing data from working storage in the record keeping work.Therefore, common record keeping work is wanted the expensive time to go to realize dualization rather than is done work own, and this will cause the complexity of its performance reduction and record keeping work.

Therefore, the purpose of this invention is to provide a kind of method, make the billing data dualization at an easy rate by using the database in telephone switching system.

For reaching above-mentioned and other purpose,, adopted fast storage to replace HDD in the existing switching system according to telephone switching system of the present invention.The updating value of database file is stored among the SRAM in time.Then, the value among the SRAM is returned regularly deposit in this fast storage standby.

Below in conjunction with the detailed description of accompanying drawing to embodiment, will make above and other objects of the present invention, feature and advantage become clearer, wherein:

Fig. 1 is the simple block diagram of common telephone switching system;

Fig. 2 is a simple block diagram of using cpu package in the telephone switching system of the present invention;

Fig. 3 is the sketch that the dualization of expression most preferred embodiment according to the present invention is handled;

Fig. 4 is the flow chart that most preferred embodiment makes the billing data dualization according to the present invention.

Most preferred embodiment of the present invention is described now in conjunction with the accompanying drawings.Among the figure, for ease of understanding the parts of identical label TYP.Although will limit and describe in detail specific embodiment by way of example, so that illustrate theme of the present invention,, there are not these detailed contents for those skilled in the art, also can implement the present invention with description of the invention.In addition, avoided unnecessary detailed description here to those well-known functions and structure.

Fig. 2 represents to use being connected between the DRAM 221 and I/O unit 220 in the telephone switching system of the present invention.As shown in FIG., CPU10 controls whole operation of the present invention according to control program, such as conversation conversion and dualization processing etc.This telephone switching system comprises: as the DRAM 221 of main storage, DRAM 221 comprises call treatment work 116, bill work 117, configuration/database work 118 and I/O work 119; SRAM (static RAM (SRAM)) 30, this is non-volatile memory, the storage data library file; And fast storage 114, stored routine file and with the database file of compressed file form.According to the present invention, fast storage 114 plays the effect of HDD 108 in the existing telephone switching system of Fig. 1.By the 119 control I/O units 220 of the I/O work among the DRAM 221, maintenance terminal 200 and printer 230 are connected to I/O unit 220.Call treatment work 116 interrelates with the call treatment of telephone switching system.Bill work 117 has covered and the record bill or the operation of in time keeping accounts and interrelating, load program file and cover the whole management that interrelates with database of configuration/database work 118.Maintenance terminal 200 safeguards that by the mode executive system of RS-232C agreement printer 230 is printed timely bill information, system diagnostics information and warning message.

Several the work that interrelate with bill work dualization that Fig. 3 represents according to the present invention most preferred embodiment.Among the figure, call treatment work 116 has covered interrelating with call treatment of task, and will calculate the required message transmission of telephone charges to bill work 117.Bill work 117 is sent to I/O work 119 with timely bill information, and then, I/O work 119 uses printer 230 to print by the detailed content of keeping in repair terminal 200 appointments.Under the situation of the record bill information that should manage in switching system, bill work 117 comes the management accounts billing data by concrete database file is set.The whole operation that 118 management of configuration/database work and bill work dualization interrelate.DRAM 221 stores the value (record value) of temporary transient data updated library file.It is standby that this data updated library file value is stored into SRAM 30 regularly.In addition, fast storage 114 is with the predetermined cycle, preferably the billing data of SRAM 30 is stored into wherein once a day.

Fig. 4 illustrates the flow chart of most preferred embodiment by using the work of database check sheet to carry out the dualization processing according to the present invention.Referring to this figure, in step 411, CPU 10 restarts switching system, and checks the existence of database in step 412, to determine whether this switching system is in originate mode.Under the non-existent situation of database, in step 413, CPU 10 makes the switching system initialization.On the contrary, when database existed, in step 414, the information that CPU 10 will be stored in the lane database in the fast storage 114 was packed among the DRAM 221, and in step 415, will be sent in the memory of prepped side at the billing data in the memory of active side.As a result, this billing data is existed with the form of database file, thereby can automatically finish the dualization of bill work.And, by configuration/database work 118, also can finish billing data transfer operation from the memory of active side to the memory of prepped side.

Can be well understood to from above description, handle, can simplify the design of bill work by from bill work, removing complicated dualization.And, by using existing database, can promote the reliability aspect management and storage billing data.In addition, owing to finished the dualization of billing data with the diadactic structure of database, so when restarting switching system, can reduce the dualization time.

Although more than describe most preferred embodiment of the present invention in detail, but should be understood that understanding, those of ordinary skill can be made many modifications by the basic inventive concept of the present invention instruction, and these must belong within the spirit and scope of the invention that appended claims limits.

Claims

1. in telephone switching system, make a kind of method of billing data dualization, may further comprise the steps with main storage, first and second additional storages:

Restart telephone switching system;

Check the existence of database, to determine whether this telephone switching system is in originate mode; With

If described database exists, the described main storage of packing into of the file in the described database that will interrelate with billing data then, and the billing data in the memory of active side is sent in the memory of prepped side.

2. according to the method that makes the billing data dualization of claim 1, further comprising the steps of: as transaction file to be stored in described first additional storage in time.

3. according to the method that makes the billing data dualization of claim 1, wherein said first additional storage is a static RAM.

4. according to the method that makes the billing data dualization of claim 2, further comprising the steps of: compressed file, and be stored in described second additional storage these compressed files standby.

5 methods that make the billing data dualization according to claim 2, wherein said second additional storage is a fast storage.