JPH0545104B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a broadcast control system for a distributed processing multiprocessor type electronic switching system that accommodates a plurality of terminal devices, and in particular, to a broadcast control method for an electronic exchange using a distributed processing multiprocessor system that accommodates a plurality of terminal devices. The present invention relates to a broadcast control method for controlling simultaneous notifications to a group of terminal devices controlled by a group of terminal devices.

[Conventional technology]

A conventional broadcast control system using a distributed processing multiprocessor type electronic exchange performs sequential processing by software control on a group of terminal devices that are asynchronously distributed and processed by distributed processors. In general, a distributed processing multiprocessor type electronic switching system uses a load-balanced peripheral control processor (LP) that controls a group of terminal devices and can add the number of terminal devices to be connected according to the control load, and a peripheral control processor (LP) that handles the logical processing of switching services. It has a main processor (MP) that executes as a task and requests the LP to control exchange switches and terminal devices.
When requesting the LP to perform broadcast processing to multiple terminal devices, sequential control is performed by executing a task program from the MP.

Therefore, since terminal device control requests are issued to multiple LPs one after another for each individual LP, there is a time difference between the LP that receives the request first and the LP that receives the request last due to the sequential processing of the task program.

This time difference is usually several hundred milliseconds, but when there is an incoming call to a central office line relay board connected to an exchange, the incoming call display (lamp, buzzer)
When turning on and off multiple relay stations all at once, even a time difference of several hundred milliseconds can cause operational discomfort, mistakes, and other problems.

As described above, in the conventional method, when simultaneous processing is performed on a plurality of terminal devices controlled by a plurality of LPs, broadcast control cannot be performed when there is a large constraint on the simultaneous processing time difference between the terminal devices.

[Problem that the invention seeks to solve]

As mentioned above, in conventional distributed processing multiprocessor type electronic switching systems, control requests to multiple terminal devices controlled by multiple LPs are sequentially processed from the MP, so when there are many LPs, had the problem that a time difference of several hundred milliseconds occurred between LPs in the control processing of terminal devices, making it impossible to control all terminal devices at the same time.

SUMMARY OF THE INVENTION An object of the present invention is to provide a broadcast control system for an electronic exchange that solves the above problems.

[Means for solving problems]

A broadcast control method for an electronic exchange according to the present invention is a broadcast control method for an electronic exchange for a group of terminal devices housed in a distributed processing multiprocessor electronic exchange. a distributed processor that commands control of the terminal device and executes exchange processing; and broadcast control that simultaneously transmits broadcast control commands directly received from the processor to a plurality of connected terminal control devices. and a data link that accommodates and connects a plurality of the terminal control devices and at least one of the broadcast control devices and exchanges and processes interconnection of the terminal control devices and the broadcast control device under the control of the processor. .

〔Example〕

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

FIG. 1 is a block diagram showing one embodiment of the present invention. In FIG. 1, a local processor LP1, a main processor MP2, a central bus 3, a broadcast control device 4, a communication bus 5, a data link 6, a terminal control device 7, and a terminal device 8 are shown. LP1 is a peripheral control processor that controls the terminal device 8 via the terminal control device 7, and performs input/output processing for exchange processing. MP2 is a load distribution processor that is connected to LP1 via central bus 3 and executes switching processing tasks in accordance with switching processing requests from LP1.

The terminal control device 7 is a device that directly controls the terminal device 8, and has control functions such as detecting the press of a telephone key on the terminal device 8, controlling blinking of a lamp, controlling character display, etc.
It also has a function of directly receiving a terminal control request signal from the broadcast control device 4 via a data link 6, which will be described later.

The broadcast control device 4 is connected to the MP 2 by a communication bus 5, and has a function of receiving terminal control request signals for simultaneous control of a plurality of terminal devices 8 from the MP 2;
It has a function of interpreting the terminal control request signal received from the MP 2 and simultaneously sending the terminal control request signal to the terminal control device 7 via the data link 6.

The data link 6 is a signal bus that is controlled by the MP 2, connects a plurality of terminal control devices 7 and the broadcast control device 4, and supplies a terminal control request signal from the broadcast control device 4. The information control device 4 and a plurality of terminal control devices 7 can be connected in a 1:N manner, and each terminal device 8 can be connected to the terminal control device 7.
This is a communication bus device that can broadcast control signals.

In normal exchange processing that does not require simultaneous control of a plurality of terminal devices 8, the MP2 sends a terminal control request signal to a single LP1 that can control the terminal device that needs to be controlled as a result of the exchange processing task.

When a plurality of terminal devices are under the control of different LP1 and are to be controlled simultaneously, MP2 sends a terminal control request signal to broadcast control device 4 via communication bus 5 as a result of the exchange processing task. Broadcast control device 4 converts the received simultaneous control request signals for multiple terminals into individual terminal control request signals and simultaneously sends them to multiple terminal control devices 7 via data link 6. Since the plurality of different terminal control devices 7 receive the terminal control request signal at the same time and control the terminal devices 8 under their respective control, it is possible to control the plurality of terminal devices 8 at the same time. .

〔Effect of the invention〕

As explained above, the present invention provides a broadcast control device and a terminal control device that connect via data links to a group of terminal devices that are distributed and controlled by a plurality of peripheral control processors in a distributed processing multiprocessor type electronic exchange. By using terminal control request signals for simultaneous control of multiple terminal devices from the main processor, it is possible to construct a system that allows broadcast control without sequential processing, and enables simultaneous processing of multiple terminal devices without time lag. This has the effect of

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a broadcast control system for an electronic exchange according to the present invention. 1, 2...Processor (LP, MP), 4...Broadcast control device, 6...Data link, 7...Terminal control device, 8...Terminal device.

Claims (1)

[Claims] 1. In a broadcast control system of an electronic exchange for a group of terminal devices housed in a distributed processing multiprocessor type electronic exchange, a terminal control device that controls the directly connected terminal devices and a command to control the terminal devices are provided. a distributed processor that executes exchange processing with the processor, a broadcast control device that simultaneously transmits broadcast control commands directly received from the processor to the plurality of connected terminal control devices, and a plurality of the terminal control devices and and a data link that accommodates and connects one of the broadcast control devices and exchanges and processes mutual connections between the terminal control device and the broadcast control device under the control of the processor. control method.