JPH0290885A - Electronic exchange system - Google Patents

Abstract

PURPOSE:To use both the terminal machines of a program load type and a program built-in type jointly by making the terminal machine inform an electronic exchange of a signal to show the attribute of the terminal machine at the time of the start of the operation of the terminal machine, and making the electronic exchange load a program for only the terminal machine of the program load type. CONSTITUTION:A terminal machine control part 6a consists of a line control circuit 7, a terminal CPU 8, a ROM 9a and a RAM 10, and the ROM 9a has terminal machine attribute data to show whether its own terminal machine is ot the program load type or of the program built-in type. Then, at the time to start the operation, the terminal machine informs the electronic exchange of information to show the attribute ot either the type of a built-in program for controlling the terminal machine or the program load type by a transmitting means. The electronic exchange receives this attribute information, and decides the necessity or the unnecessity of the loading of the program, and performs program loading for only the terminal machine of the program load type. Thus, the desired terminal machine can be connected and used without any trouble whether it is of the program load type or the program built-in type.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Field of Application) The present invention relates to an electronic exchange system, and particularly to a terminal device and an electronic exchange system that are loaded with built-in programs for performing basic functions and special functions. The present invention relates to an electronic switching system that allows a mixture of terminals to be connected.

(Prior art) Controlled by software using microcomputers, three-way electronic private branch exchanges have become more multi-functional and sophisticated, and in addition to the original telephone exchange operation, they have become increasingly capable of providing a variety of services. It's convenient. On the other hand, terminal devices such as extension telephones and relay boards connected to such electronic exchanges are also microcomputerized and have become multi-functional and highly intelligent. Now, if we consider the conventional electronic exchange system, it is constructed as shown in FIG.

That is, in the figure, 1 is an electronic exchange control section,
It performs switching operations between external lines, internal lines, and between internal lines, and includes a line control unit 2, a CPU (processor) 3, and a memory 4.
It is composed of etc.

The line control unit 2 is used to send and receive signals to and from connected extension lines and to supply power, and the CPU 3 plays a central role in controlling switching operations and the like.
3. It is used to store various programs to be executed, data necessary for program execution, and as a working area for programs. Reference numeral 5 denotes a line, which supplies power for terminal driving voltage generated from a system power supply provided inside the electronic exchange and is used as a communication path for extension lines. Reference numeral 6 indicates components on the terminal side, which are the terminal 1 which plays the central role in controlling the terminal, a control section, a line control circuit 7, a terminal CPU 8, a ROM 9, and an RA.
It consists of Ml0. The line control circuit 7 is for sending and receiving signals and receiving power supply from the electronic exchange connected via the four-wire 5, and the terminal CPU 8 has special service functions in addition to the basic functions as a terminal device. It plays a central role in the control for realizing the following. The ROM 9 is a read-only memory that stores an initial program loader (IPL), etc., for reading control programs for basic terminal functions and special services from the electronic exchange during initialization processing, and the RAM 10 is a read-only memory that stores initial program loaders (IPL) and the like for reading control programs for basic terminal functions and special services from the electronic exchange during initialization processing. It is a random access type memory that is used for storing various programs to realize the basic functions and special service functions of a terminal device, storing data necessary for program execution, and as a working area for programs. .

The terminal CPU 8 executes the programs stored in the ROM 9 and the RAM 10 to realize the function as a terminal.

6(b) and (C) show the RO in the terminal controller 6.
It is a diagram showing a memory map of M9 and RAMl0,
A in the ROM 9 is an IPL program, b in the RAM 10 is a terminal program area for storing the loaded control program, and d is a work area. Note that IPL program a is automatically executed when a terminal is powered on or reset, or when an electronic exchange is reset, and performs initialization processing and loads necessary programs from outside. This is a program for loading programs that perform processing.

Further, FIG. 6(a) is a memory map in the memory 4 of the exchange control section 1. In the figure, r is an IPL program, S is an exchange processing program, t is a terminal program area, and U is a work area.

Next, the operation of the conventional system will be explained with reference to FIG. 7, which is a flowchart of the operation of the terminal, and FIG. 8, which is a flowchart of the operation of the exchange. When the electronic exchange control unit 1 and the terminal control unit 6 are connected via the line 5, power is supplied from the electronic exchange control unit 1 to the terminal control unit 6, and the power is turned on and reset (
SL), the terminal CPU 8 in the terminal controller 1 starts operating 52). After the IPL is started in step S2, an operation start notification is sent to the exchange control unit 1 (S3).

On the other hand, upon connection, the electronic exchange control section detects the connection of the terminal and waits for an operation start notification sent from the terminal. When the operation start notification is received (s12), it immediately starts transmitting the terminal program load data (s13), and continues transmitting the data until the terminal program loading is completed as determined in step s14. If it is determined that the program loading has been completed, a program loading completion notification is sent (s15), and the process proceeds to the exchange processing.

The terminal control unit 6 does not receive data until it receives the program load completion notification from the exchange control unit 1 (s4).
, this received data is stored at a predetermined address in the terminal program area in RAM10 (s6).

If it is determined in step s5 that the program loading completion notification has been received, the process moves to the program processing start address in the terminal program area, the terminal program is started (s7), and the process moves to the terminal machine.

In this way, in the conventional system, the electronic exchange always loads the program to the terminal, so although it is not shown in the flowchart above, there is a routine to confirm that the program loading has completed successfully. The exchange determines that the terminal is normal and treats the terminal as a terminal connected to an extension. Therefore, if a terminal with a built-in program that does not have the function to accept program loading is connected, an error will occur when the program is loaded from the exchange, and therefore the exchange will determine that this terminal is malfunctioning and connect it to the exchange. will disconnect the terminal from the system. Therefore, only program load type terminals could be connected.

(Problems to be Solved by the Invention) As mentioned above, both electronic exchanges and terminals have become multifunctional through software control using microcomputers.
With the advancement of high intelligence, various services are becoming possible and extremely convenient. In addition, since such multi-functional, highly intelligent conventional electronic exchanges always load the program for realizing the service to the terminal at the time of initialization, it is necessary to confirm that the program loading has completed successfully. When this confirmation is completed, the exchange determines that the terminal is normal and treats the terminal as an extension terminal. Therefore, if a terminal with a built-in program that does not have the function to accept program loading is connected, an error will occur when the program is loaded from the exchange, and therefore the exchange will determine that this terminal is malfunctioning and connect it to the exchange. Since this requires disconnecting the terminal from the system, only program load type terminals can be connected.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an electronic exchange system that allows both program load type and program built-in type terminals to be connected and used.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above object, the present invention is configured as follows. In other words, a terminal that executes a terminal program to realize the terminal function is connected to an electronic exchange, and the electronic exchange is provided with a function to load the program to the connected terminal at the initial stage, and after the program is loaded. In an electronic switching system that is equipped with a function that allows the terminal to be used, the terminal is provided with data indicating the attribute of whether the terminal has its own control program built-in or is loaded from the electronic switch. A means is provided for transmitting the attribute data to the electronic exchange at the start of operation, and the electronic exchange receives the attribute data from the terminal and determines whether the program 0-code is necessary or not, and when the program is required to be loaded. The terminal is configured to include a control means for loading a program and controlling the terminal so that it can be used without loading the program when unnecessary.

(Function) In such a configuration, when the terminal device starts operating, the transmitting means notifies the electronic exchanger of information indicating the attribute of the built-in terminal control program or program load type. By receiving this attribute information, determines whether it is necessary to load the program or not, and loads the program only for the program load type terminal.Then, the program is loaded only for the program load type terminal. After loading, the program is controlled so that it can be used as is for terminals with built-in programs.

In this way, in the present invention, when the terminal starts operating, information indicating the attributes of the terminal is notified to the electronic exchange. Since the program load process is performed only for program load type terminals, it is possible to connect the desired terminal and use it without any problems, whether it is a program load type terminal or a terminal with a built-in program. become.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

Figure 1 is a block diagram showing the configuration of this device.
is an electronic exchange control unit, which performs switching operations between outside lines, extension lines, and between extension lines; the line control unit 2, CPU 3
, memory 4, etc. The line control section 2
is used to send and receive signals to and from connected extension lines and to supply power, the CPU 3 is responsible for controlling exchange operations, etc., and the memory 4a is necessary for various programs to be executed by this CPU 3 and for program execution. It is used for storing data and as a working area for programs. Reference numeral 5 denotes a line, which supplies power for terminal driving voltage generated from a system power supply provided inside the electronic exchange and is used as a communication path for extension lines. 6a is a component on the terminal side, which is a terminal control unit that plays a central role in controlling the terminal, and a line control circuit 7.
, terminal CPU8, ROM9a, and RAM10. The line control circuit 7 is for receiving and receiving signals and receiving power supply from an electronic exchange connected via the line 5,
The terminal CPU 8 plays a central role in the control for realizing special service functions in addition to the basic functions of a terminal device. The ROM 9a has terminal attribute data indicating whether the own terminal is a program load type or a built-in type, and if the own terminal is a program load type, the terminal attribute data (for example, An initial program that sends a hexadecimal number "FF"), reads a program that implements the basic functions of a terminal or a program for special services from an electronic exchange, stores it in RAM10, and executes the loaded program. This is a read-only memory that stores programs such as a loader (IPL), and the RAM 10 is a read-only memory that stores programs such as a loader (IPL).
It is used to store various programs for realizing special service functions etc. read by the PL, to store data necessary for program execution, and as a working area for the programs.

In addition, if the own terminal is a built-in program type, the ROM 9a contains a terminal attribute button (for example, in hexadecimal) indicating that the own terminal is a built-in program type.
00''), and stores programs, etc. for realizing the basic functions and special service functions of the terminal to be executed by the terminal CPU 8, and after sending the terminal attribute data to the electronic exchange during initialization processing. , the program is executed to realize the function as a terminal device.

FIGS. 2(a) and 2(b) show the RO in the terminal controller 6.
FIG. 2 is a diagram showing a memory map of M9a and RAM 10, where a in ROM9 is an IPL program area, C is a terminal attribute data area storing terminal attribute data, and RA
b in M10 is a terminal program area, and d is a work area. Note that the IPL program a is automatically executed when the terminal is powered on or reset, and when the electronic exchange is reset, and has the function of performing initialization processing and outputting attribute data.

In addition, the program load type has a program loading program that performs the process of reading a necessary program from the outside, and the built-in program type has a function to execute the built-in program after sending attribute data.

Furthermore, the memory map in the memory 4 of the exchange control unit 1 is the same as the conventional one shown in FIG. 6(a), but the
When the connection of a connected terminal is detected in the PL program r, it receives the attribute data sent from the terminal, determines whether or not to send the terminal program in the terminal program area t to the terminal, and determines whether or not to send the terminal program in the terminal program area t to the terminal. Transmission is performed only in certain cases, and after confirming the successful completion and registering the connection of the terminal,
In addition, if transmission is not necessary, after confirming the connection and registering the connection of the terminal, the terminal is provided with a function that immediately proceeds to the execution of the exchange processing program S that controls the operation of the exchange.

Next, the operation of this system will be explained with reference to FIG. 3, which is a flowchart of the operation of the terminal, and FIG. 4, which is a flowchart of the operation of the exchange. When the electronic exchange control unit 1 and the terminal control unit 6 are connected via the line 5, power is supplied from the electronic exchange control unit 1 to the terminal control unit 6a, and the power is turned on and reset (
s21), the terminal CPU 8 in the terminal control unit 1
Execute the IPL program of M9a and start operation (
s22).

After the IPL is started in step s22, the terminal CPU 8 notifies the exchange control section 1 of the start of operation via the line control circuits 7 and 2 (s23).

On the other hand, the electronic exchange control unit 1 detects the connection of the terminal (s3L) and waits for an operation start notification sent from the terminal. When the operation start notification is received (s32), the terminal waits for the terminal attribute notification notification (s33).

On the other hand, the terminal side determines whether the IPL program is a built-in type in the own terminal based on the terminal attribute data, and if it is the built-in type, the process moves to step s29 and a terminal attribute notification (terminal attribute button) is sent. When this is completed, the terminal program stored in its own ROM 9a is started and the process proceeds to the terminal processing (s30).
.

In addition, in s24, when it is determined that the own terminal is a program rotor type, the process moves to step s25, and terminal attribute notification (reading terminal attribute data from the terminal attribute data area C and transmitting the data to the exchange side) is performed. transmission), and when this is completed, it will wait for data reception from the exchange side (
s2G).

Here, the exchange side that is waiting for the terminal attribute notification notification (s33) uses the terminal attribute data sent from the terminal side to determine whether the terminal is a built-in program type or not. s34) If it is a built-in program type, the terminal is registered for connection and the process moves to the exchange. Further, if it is determined in step s34 that the program is of the program load type, the terminal program load data is immediately started to be transmitted (s35), and the data is transmitted until the end of the terminal program load is determined as determined in step s36. If it is determined that the program loading has been completed normally, a program loading completion notification is sent (s37), the terminal is registered for connection, and the process proceeds to the exchange.

Further, when the terminal controller 6 waits for data reception in step s24, it continues to receive data until it receives a program load completion notification from the exchange controller 1 (s
24) This received data is stored at a predetermined address in the terminal program area in RAMLQ.

If it is determined in step s27 that the program loading end notification has been received, the process moves to the program processing start address in the terminal program area, the terminal program is started (s30), and the process moves to the terminal device process.

In this way, this system connects a terminal to an electronic exchange that executes a control program for the terminal to realize the terminal function, and the electronic exchange has a function that initially loads the program to the connected terminal. In an electronic switching system having a function to enable the terminal to be used after loading a program, the terminal has an attribute indicating whether the terminal has its own control program built-in or is loaded from the electronic switching system. [lf] and has a means for transmitting the attribute data to the electronic exchange at the time of starting its own operation, and the electronic exchange receives the attribute data from the terminal and determines whether it is necessary to load a program. The terminal is equipped with a control means that loads the program when it is necessary, and controls the terminal so that it can be used without loading the program when it is not necessary. Then, when the terminal starts operating, the transmitting means notifies the electronic exchange of information indicating the attribute of whether the terminal has a built-in program for controlling the terminal or a program load type. By receiving this attribute information, the electronic exchange determines whether or not it is necessary to load the program, loads the program only for program load type terminals, and loads the program only for program load type terminals. After loading the program,
The built-in program type is controlled so that it can be used without loading a program. Therefore, both program built-in type terminals and program loading type terminals can be used without any problem. In particular, for public terminals that do not require special services, inexpensive standard terminals with built-in programs can be used.
In addition to reducing the burden of program loading on electronic exchanges, by using program loading type terminals for terminals that require special services, it is possible to cope with this problem and provide services that meet the needs of users. It becomes possible.

It should be noted that the present invention is not limited to the embodiments described above and shown in the drawings, and can of course be implemented with appropriate modifications within the scope of the gist thereof.For example, in the above embodiments, It reads its own terminal attribute data and determines whether it is a built-in program or not, but this is done by sending the terminal attribute data and performing the necessary processing according to the attribute without determining the attribute from the beginning. There is no problem even if the program is fixed.

〔Effect of the invention〕

As described above, according to the present invention, when a terminal starts operating, a signal indicating the attributes of the terminal is notified to the electronic exchange, and whether the electronic exchange is a terminal, a built-in program, or a program loaded type. This electronic switching system recognizes the program load type and loads the program only for program load type terminals, so you can connect the desired terminal and use it without any problems, whether it is a program load type terminal or a terminal with a built-in program. system can be provided.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing a memory map of the terminal side ROM and RAM in the device of the present invention, and FIGS. 3 and 4 are for explaining the operation of the present system. 5 is a block diagram showing the conventional configuration, FIG. 6 is a diagram showing the memory map of the electronic exchange side memory and terminal side ROM and RAM in the conventional device, and FIGS. 7 and 8 are the operations of the conventional system. It is a flowchart for explaining. 1a...Terminal control unit, 2,7...Line control circuit, 3.
・CPU, 4a...Memory, 5...Line, 8...Terminal side CPU, 9a=-ROM, 10-RAM0 Applicant's representative Patent attorney Takehiko Suzue (b) Figure 2

Claims (1)

[Claims] A terminal device that realizes terminal functions by executing a control program for the terminal device is connected to an electronic exchange, and the electronic exchange is provided with a function to load the program to the connected terminal device at the initial stage, and the program is loaded. In an electronic switching system that is later equipped with a function that allows the terminal to be used, the terminal is provided with data indicating attributes of whether the terminal has its own control program built-in or is loaded from the electronic switch. The electronic exchange is provided with a means for transmitting the attribute data to the electronic exchange at the start of operation, and the electronic exchange receives the attribute data from the terminal and determines whether or not program loading is necessary. An electronic exchange system characterized by having a control means for loading a program and controlling the terminal to be usable without loading the program when unnecessary.