JPS6322507B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for measuring various traffic information related to telephone exchanges.

Traffic information related to telephone exchanges includes the number of calls for each destination (number of originating calls, number of overflow calls), calls arriving at a certain device (generally a switchboard) in the order of arrival, and the difference in arrival time of the previous and subsequent calls as one hour on the horizontal axis. These include the plotted arrival interval distribution, call volume (by route, destination, and trunk), holding time distribution, hourly congestion rate, and usage rate. Conventionally, when measuring these traffic amounts, the main method was to use a statistical frequency meter. Therefore, this method could only measure a very limited amount of single information or at most two or three types of information at the same time. Furthermore, even if the information is measured, there is a limit to the ability to measure detailed information. Furthermore, the interarrival distribution,
It has the disadvantage that traffic information that includes time elements such as holding time distribution cannot be measured.

Therefore, in recent years, traffic measurement methods that incorporate computer processing methods have been considered. As an example of this method, information necessary for various types of traffic is retrieved from the common control device of the telephone exchange, stored in a temporary storage area corresponding to the communication device during a call, monitored the call status, and saved and stored at the beginning and end of the call. There is a method of storing data in a location (collection memory). however,
The disadvantage of this method is that a temporary storage memory element is required to accommodate the communication path equipment, and the amount of traffic information collected from the common control unit for each call is large. The number of temporary storage devices (the number of devices can be very large) is very expensive. This is because temporary storage memory elements mainly consist of core memory or IC memory, and the price per bit is lower than that of other acquisition memories.
This is because it is very expensive compared to large storage capacity memories such as magnetic tape, disks, or drums. Also, if you store it directly in a collection memory such as a magnetic tape instead of storing it in a temporary storage location, each piece of collected information that is time-shifted from the start to the end of a given call will not correspond to that call. Therefore, at the beginning and end of the story, the previously memorized location is searched and the beginning and end of the story are stored there.
When trying to store end-of-call information, it takes a very long time to search for that location, and there is a problem in that large-scale stations with a huge amount of traffic cannot keep up with call processing.

The traffic measurement method of the present invention collects information including selected numbers, trunk accommodation locations, subscriber accommodation locations, and connection control types for each call from a connection common control device of a telephone exchange, and stores the information in a storage device in the order of occurrence based on time. The communication path device is stored in chronological order, and the state change of the communication path device is monitored at a certain period, and when a state change is detected, the change detection information and the information identifying the communication path device are stored in the storage device, and the change is detected based on time. By sequentially storing information in chronological order, the amount of traffic is calculated based on the time based on the information stored in the information device, the change detection information, and the channel device identification information through later offline processing.

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 this embodiment, various information such as activation, response, and termination information and selection numbers, TRK accommodation location, subscriber accommodation location, connection control type, etc. are provided from the communication path device (TRK) 7 and the common control device (MKR) 3. (hereinafter referred to as traffic information). The method for collecting
Interrupt method from the MKR3 or TRK7 side to the common control device observation processing device (MOCP) 5, communication channel device observation processing device (TOCP) 9, or MOCP
5 or MKR3 by TOCP9 or
The polling method of TOCP9 is considered, but any method is possible.

Now, when subscriber (SUB) 1 and TRK7 are connected via channel link (LINK) 2 by MKR3, traffic information will be transmitted when connection control is completed.
MOCP5 is a common control unit interface (MI)
Collect after 4 steps. The collected information includes selected numbers,
TRK accommodation location, subscriber accommodation location, connection control type, etc. are collected. Also, if the connection is incomplete (the call path link is busy, there is no outgoing TRK at the time of outgoing call, the subscriber is busy at the time of incoming call, or there is a failure, etc.), traffic information is incomplete for calculating overflow calls. collected at the time.

MOCP along with the above traffic information.
5 receives the time from the time generator (TIMER) 11 and performs time synchronization with the information in the channel equipment change detection information collection memory (TMEM) 10, which will be described later, which is necessary for analysis and calculation of traffic volume through offline processing. The information is written to the common control unit traffic information collection memory (MMEM) 6 for the purpose of this. The traffic information collected from the MKR3 mentioned above is stored in the MMEM6 at the same time as it is collected.

FIG. 2 shows a storage format in which data is stored in the order of occurrence based on the time of storage. That is, MMEM6
It is a storage format diagram of information collected from MKR3 and time information from TIMER11. Traffic information from MKR3 is stored in MMEM6 in chronological order in the order of occurrence each time a call is handled by MKR3. The MOCP 5 stores time information in the MMEM 6 by interrupts from the TIMER 11 at regular intervals. On the other hand, information related to communication path device TRK7 is also transmitted to TOCP9 via communication device interface (TI) 8 in the same manner as the configuration of MKR3.
Collected by. The collection points are the change detection information and its TRK identification information at the time of startup, when the other party answers, and when the call ends, and as in the case of MMEM6, this is shown in Figure 2.
The information is stored in the TIMEM 10 in the TMEM storage format in the order of change detection. Furthermore, the TOCP9 receives time instructions from the TIMER11 at a cycle necessary for change detection, and stores the time in the TMEM10.

As described above, various traffic amounts are calculated separately based on the respective information stored in the MMEM 6 and TMEM 10 through later offline processing.

Both MMEM6 and TMEM10 store time information at a constant cycle necessary for traffic splitting, and by making effective use of this time, it is possible to determine the type of call carried by the communication path device based on the time. It is possible to distinguish between That is, a call that occurs at a certain time can be linked to the traffic information and change detection information of the MMEM 6 and TMEM 10 at the same time.

As explained above, according to the present invention, by storing time in a storage device, stored information can be divided chronologically according to the time. That is, there is no need to extract various types of traffic information from the shared control device of the telephone exchange and store it in a temporary storage location corresponding to the communication path device. Therefore, traffic information can be stored in an inexpensive collection memory with a large storage capacity, and a very economical traffic measurement method can be constructed.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention;
FIG. 2 is a layout diagram showing an example of the storage format of the common control device traffic information collection memory and the channel device change detection information collection memory shown in FIG. 1: Subscriber (STB), 2: Communication path link (LINK), 3: Common controller (MKR), 4: Common controller interface (MI), 5: Common controller observation processor (MOCP), 6 : Common control equipment traffic information collection memory (MMEM), 7: Communication path device (TRK), 8: Communication path device interface (TI), 9: Communication path device observation processing device (TOCP),
10: Channel equipment change detection information collection memory (TMEM), 15, 11: Time generator (TIMER).

Claims (1)

[Claims] 1. Collect information including selection numbers, trunk accommodation positions, subscriber accommodation positions, and connection control types for each call from a connection common control device of a telephone exchange, and store the information in a storage device in chronological order in the order of occurrence based on time, Further, the communication path device is monitored for state changes at regular intervals, and when a state change is detected, change detection information and information for identifying the communication path device are stored in a storage device chronologically in the order of change detection based on time. A traffic measurement method characterized in that the amount of traffic is calculated based on time using information stored in a storage device through later offline processing, change detection information, and channel device identification information.