JPS58175049A - Program update system - Google Patents

Abstract

PURPOSE:To save the cost and time for correcting job, by changing and correcting a program of a stored program control system at a remote location via a telephone exchange network from a data terminal. CONSTITUTION:MODEMs 350-35n modulate and demodulate data transmitted/ received with a data terminal 1 via the said telephone exchange network 2, and line memories 300-30n buffer the said transmitted and received data. A main storage device 33 consists of a bus 31, a program controller 32, a buffer section 330 buffering data transmitted among the line memories 300-30n via a memory bus 34, and a program memory area 331 storing a program specifying the operating means of an SPC telephone exchange system 3. The program controller 32 processes the analysis of transfer data among the said line memories 300-30n and the main storage device 33, the transfer control and the program update control of a program update section 332.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a program update method, and more particularly to a program update method for rewriting a program in a stored program control type system via a telephone switching network.

In stored program control systems such as telephone exchanges, packet exchanges, and electronic computers, program changes due to improved program specifications (including data additions when introducing new services or adding more subscribers) and program changes through software debugging are required. Corrections often become necessary.

Conventionally, changes and corrections to this type of program have been made from a console attached to each storage program type 2 system control panel system or from a system control type 2 controller. Therefore, to change or modify programs, workers must go to the locations where these stored program control systems are installed (not only in Japan but also in some cases scattered around the world), which requires a large amount of work. This method has the disadvantage of being expensive and time consuming.

An object of the present invention is to transmit program rewriting data from a data terminal via a telephone switching network (for example, a local/outside telephone switching network, 9 international telephone switching networks, etc.) to modify a program in a stored program control type system located in a remote location. The present invention aims to provide a program update method that solves the shortcomings of the Queen and greatly reduces the cost and time of the modification work.

The program update method according to the present invention includes nine data terminals housed in a terminal telephone exchange in a telephone exchange network, and a storage program control type system connected to the telephone exchange network, in which programs input from the data terminals are rewritten. The present invention is characterized in that the program in the program area of the storage program control type system is rewritten in accordance with data. Further, the storage program control type system includes line memory means for buffering input data from the telephone exchange network, raw memory means for storing a program that defines the operating element number of the system, and analysis of the input data and based on the result. The present invention is characterized in that it includes a control means for rewriting the program.

Next, the present invention will be explained with reference to the drawings.

The figure is a block diagram showing an embodiment of the program update method based on the present invention. In the figure, a data terminal 1 that sends and receives program update data and update confirmation data is accommodated in a terminal telephone exchange 2o in a telephone exchange network (a general telephone exchange network such as local and international telephone exchange networks) 2; A storage program controlled telephone switching system (hereinafter referred to as an SPC telephone switching system) 3 is connected to the telephone switching network 2 . The 8PC telephone switching system 3 is connected to the telephone switching network 2.
and line memories 300 . ~3on and the two-in-memory 300 . ~30n and the program control device 32 interconnected with the program control device @32
a central control unit 37 and a main memory 33 that are interconnected via a memory bus 34; and the line memory 30.
0. #modems 350, ~35n transmit and receive data to and from the data terminal 1 via the telephone switching network 2. The line memories 300* to 30n buffer the mosquito transmission and reception data. In addition, the main storage device 33 and the bus 31. The line memory 300 . ~son,! : a buffer unit 330 that buffers data transferred between;
It is configured to include a program memory area 331 that stores a program that defines the operating procedure of the 8PC telephone exchange system 3, and a symbol 33 in the core program memory area 331
2. Change or modify the program (hereinafter referred to as update)
Indicates the program update section to be updated. Furthermore, the program control device 132 is connected to the line memory 300.
, ~ 30n and analysis of data transferred between the main storage device 33.

It performs processing such as transfer control and program update control of the program update section 332. The central control unit 37 reads out the program from the main storage unit 33 via the memory bus 34 and executes the program.Next, the operation of this embodiment will be explained.

First, a dial-up connection from the data terminal 1 is established using a known technique, and a train is set up from the data terminal 1 to the SPC telephone switching system 3 via the telephone switching network 2. Here, data terminal l, terminal telephone exchange 2
0. It is assumed that nine trains are set for the modem 35o and the line memory 300. Thereafter, program update data from the data terminal 1 via the train is received by the SPC telephone switching system 3. The program update data is sent to the telephone exchange network as a serial signal edited into a function code, an address, and an update program each indicating a multi-program write instruction, a program update section 3320 address designation, and an address designation, respectively, in the data terminal 1 using a known technique. 2, and in the SPC telephone exchange system 3, it is demodulated into a parallel signal by the modem 350 and sent to the line memory 30.
Received as 0. The line memory 300 buffers the parallel signal by -H and then interrupts the program control device 32 via the bus 31f. The interrupted program control device 32 instructs the line memory 300 to address the buffer section 330, so that the contents of the line memory 300 (the parallel signal) are transferred to the bus 31.
The data is transferred to the buffer section 330 via the program control device 132 and the memory bus 34. Subsequently, the program control device 32 reads the transferred contents of the buffer unit 330 via the memory bus 34, and further reads the current program of the program update unit 332 and analyzes these contents. As a result of the analysis, it is determined that the update program should be written to the program update unit 332 at the specified address based on the func code, address, and update program, and an instruction is given to the SPC telephone exchange system 3. Then, the update program in the buffer section 330 is written into the program update section 332, and the program update operation is completed. Thereafter, the program control device 32 updates the program (7) of the program update section 332.
update confirmation data) and confirm its normality.

If necessary, the SPC telephone exchange system 3 can cause the terminal device 1 to receive the update confirmation data via the train using a known technique, so that the terminal device 1 can also confirm the normality. . Note that when a train other than the above-mentioned train is set, the operation is the same as that described above, so a description thereof will be omitted.

The 8-PC telephone exchange system 3 in this embodiment has a function of updating the program using input data from a console or a system control typewriter that is normally attached. It can be integrated with 37. At this time, the bus 31 is omitted and the line memory 300. ~3
0n? Obviously, a direct connection to the memory bus 34 is possible.

The above examples do not limit the invention.

That is, although an 8PC telephone exchange system has been exemplified as the storage program control type system, other systems such as a packet exchange system or an electronic meter system may also be used. Note that in the case of this Kerat switching system, the present invention can be applied without particularly providing a new line memory because the line memory for transmitting and receiving packet data is already present.

As is clear from the above explanation, according to the program update method of the present invention, it is possible to change and modify programs in a stored program control type system located in a remote location from a data terminal via a telephone switching network. As the number of opportunities for workers to go to the location where the stored program control type system is installed is significantly reduced, the cost and time of program modification work can be significantly reduced. is greater than 0

[Brief explanation of the drawing]

The figure is a block diagram showing an embodiment of the program update method of the present invention. In the figure, 1...data terminal, 2...
・Telephone switching network, 20...terminal telephone exchange, 3.
...Storage program controlled telephone switching system,
300. ~30n...Line memory, 31...
・Bus, 32...Program control device, 33.
...Main memory, 330...) 77
%, 331...Program memory area, 332
...Program update department, 34...
...Memory bus, 350. ~35n...Modem, 36...Connection switch, 37...
・Central control device.

Claims (1)

[Claims] (1) Consisting of a data terminal housed in a terminal telephone exchange in a telephone exchange network and a storage program control type system connected to the telephone exchange network; A program update method in which the program in the program memory area of the storage program control type system is rewritten every t%. (2. In the program update method described in claim (1) H-P, the storage program control type system includes line memory means for buffering input data from the telephone switching network, and defines the operating procedure of the system. 1. A program update system comprising main memory means for storing a program, and control means for analyzing the input data and praising the program based on the result.