JPS59112752A - Automatic traffic load control system - Google Patents

Abstract

PURPOSE:To control securely telephone service by monitoring the occupation rate of trunks of the trunk line and the junction line of an automatic exchange, and varying automatically the level of a subscriber class when the occupation rate attains to a specific value. CONSTITUTION:The occupation rate of central office trunks 6 and junction line trunks 8 whose connections are specified is set in a load control unit LCU4 from a man-machine interface device 9 through a main switch MSW2. The LCU4 analyzes state data on the respective trunks and stores the data, and when busy data attains to the set numeral, information on that is transmitted to a main processor MPU3. The MPU3 varies the class level of a subscriber whose connection is to be specified according to the sent data, and sends out corresponding lamp display data. A clock signal sent from a time controller TCU5 after a decrease in traffic is counted by the LCU4 and then release data is sent to the MPU3.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic traffic load control system, and more particularly to an automatic traffic load control system that enables efficient use of office lines or trunk trunks in an automatic switching system.

Conventionally, when there is congestion in the central line of an automatic exchange or relay traffic, connection restrictions for subscribers have been controlled manually from a relay stand or a man-machine interface device attached to the automatic exchange, but this is based solely on human will. Since the connection restriction control and its release are performed by the system, there is a drawback that it causes confusion in system operation management or customer service due to forgetting to perform the operation.

An object of the present invention is to provide a button that enables accurate and reliable control of telephone services in accordance with business priorities within an office in accordance with trunk usage efficiency during peak traffic periods of an automatic exchange.

For example, in accordance with the priority of work within the office, restrictions on outgoing calls to central office lines or trunk lines are processed in stages according to trunk usage efficiency as shown in Table 1 below.

Table 1/Note) ×: Outgoing call regulation According to the present invention, the usage efficiency (occupancy rate) of the central office line or trunk trunk of an automatic exchange is monitored, and when the usage efficiency reaches a preset value, automatic transmission is performed. Thus, an automatic traffic load control method is obtained, which is characterized in that the subscriber class level is changed automatically.

The present invention will be described below with reference to the drawings.

FIG. 1 is a relay system diagram showing one embodiment of the present invention. In the figure, 1 is subscriber, 2 is main switch (MSW)%
3 is the main processor unit (MPU), 4U load control unit (LOU), 5 is the time control unit (TOU), and 6 is the office line trunk (OOTI).
~0OTn), 7 is the relay stand (A'l'T), and 8 is the trunk line trunk. Next, we will explain its operation: ■ First, the total number of lines and connections for each route of the central office line trunk or trunk line trunk should be regulated. Trunk utilization efficiency (
occupancy rate) to MMI9, via 9MPU3 to LOU4
Heset.

(2) Next, the LOU 4 analyzes the status data of each trunk (2 empty calls) transferred from the MPU 3, and stores the data for each route.

- LOU4 transmits information to MPU3 when the busy data reaches a value (percentage) for which connection should be restricted, which is set in advance by MMI9.

- The MPU 3 changes the class level of the subscriber whose connection is to be restricted according to the data sent from the LOU 4. For example, the trunk usage efficiency data received by MPU3 is 60.
%, change subscriber class B to 0.

On the other hand, lamp display data is sent to the relay console indicating that the trunk usage efficiency is 60% or that class B subscribers are restricted from connecting.

■ To release the connection restriction after the traffic has decreased, the LOU 4 counts a certain period of time using the l clock signal sent from the TOU 5, and then sends release data to the MPU 3.

Claims (1)

[Claims] Utilization efficiency of central office lines or trunk trunks of automatic exchanges (
1. An automatic traffic load control system characterized by monitoring the usage efficiency (occupancy rate) and automatically changing the subscriber class level when the usage efficiency reaches a preset value.