JP3191838B2 - Traffic data collection system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for collecting traffic data in a communication network, and more particularly to a system for collecting per-call information relating to a call connection of an exchange or a service control node.
Create traffic data
It relates to a collection processing system.

[0002]

2. Description of the Related Art Conventionally, all call-specific information collected from an exchange or a service control node has been processed as it is as a target for creating traffic data.

[0003]

The above-mentioned conventional traffic data collecting method requires a processing device so that, when the traffic volume differs for each time zone, the call-by-call information corresponding to the maximum traffic volume can be edited. It is necessary to design, there is a disadvantage that the system cost becomes expensive, and, if one processing device can not cope with, by creating traffic data for each region, for example, by the distributed processing devices, There is a need to adopt a configuration in which the data is re-aggregated by a subsequent processing device, and there is a disadvantage that the system becomes complicated.

An object of the present invention is to collect traffic data that can edit desired traffic data without using expensive processing equipment even when the frequency of occurrence of call-specific information is high and a high processing capacity is required for the processing. Is to provide a system .

[0005]

The traffic data collection system according to the present invention has a function of extracting and outputting the calling / receiving terminal number, calling time, talking time, and cause of incompleteness which are detailed information on connection for each call. Traffic collection system for communication network consisting of exchanges or service control nodes
System that stores detailed information for each call from the exchange or service control node, and stores the sampling ratio value.
Then , the stored per-call information is sampled in accordance with the sampling ratio, the per-call information thus sampled is compiled and edited as traffic data, and the subsequent sampling is corrected by the traffic data.
What to do .

[0006] The traffic data collection system of the present invention comprises a switch or a communication control node constituting a communication network.
Collects per-call information on connection per call from single or multiple
And collection, to create the traffic data, the output trough
In the traffic data collection system having Ikkudeta creation means, said traffic data creation unit alone is of the exchange or the service control point
Per call information that stores per call information collected from multiple
And pay means, call each information of each number as counted from among the call every information unplug
A sampler showing the sampling ratio value that determines whether to wipe
A sampling ratio holding means for holding a calling ratio;
Sampling the per-call information stored in the information storage means
Sampling according to the sampling ratio held by the ratio holding means.
Sampling execution means for ringing;
Completed from per-call information sampled by execution means
Number of calls, number of incomplete calls , average hold time , completion rate , simultaneous connection of line groups
Counters corresponding to each traffic data including numbers
To create each traffic data by counting
In addition, the counter corresponding to each traffic data
Created by the cycle based on the defined counting cycle information
Traffic data to output each traffic data
Data counting means and the traffic data counting means.
Correction is required for each of the output traffic data.
For traffic data
Sampling of traffic data held by mobile means
Output according to the correction coefficient corresponding to the ratio of
Data correction means, and the traffic data meter
Number means and the traffic data correction means.
Traffic data that retains and outputs each traffic data
Data holding means.

Further, the traffic data creating means
Is a processing device of the traffic data creating means.
CPU usage measuring means for measuring the usage rate and use of the processing device.
A correspondence table between the usage rate and the sampling ratio is held in advance, and the corresponding
On the basis of the response table, the CPU
Depending on the usage rate of the processing unit transferred by
Find the ring ratio, and when the sampling ratio changes,
Sampling ratio table holding means for sending ring ratio
And received from the sampling ratio table holding means.
Transfer the sampling ratio to the sampling ratio holding means
And a correction unit corresponding to the sampling ratio.
Sampler that transfers the numbers to the traffic data correction means
And a traffic ratio setting means.
Data correction means is output from the traffic data counting means.
Needs correction of each input traffic data
For traffic data, the sampling ratio setting
Means for correcting and outputting according to the correction coefficient transferred from the means.
You.

[0008]

The call-by-call information is stored, the call- by- call information is extracted from the call- by- call information at a predetermined sampling rate, edited into desired traffic data, and then the sampling rate is corrected and the next call-by-call information is sampled. Therefore, data processing ranging from the original data to a wide range of occurrence frequencies can be performed.

[0009]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a configuration diagram of an embodiment of a traffic data collection system according to the present invention, FIG. 2 is a diagram showing an example of the configuration of per-call information, and FIG. 3 is a first embodiment of the traffic data creation device shown in FIG. FIG. 4 is a block diagram of a second embodiment of the traffic data creation device, FIG. 5 is a diagram showing an example of the relationship between a sampling ratio and a correction coefficient, FIG. 6 is a block diagram of a traffic data correction unit, and FIG. FIG. 6 is a diagram illustrating an algorithm of a correction execution unit.

[0011] This traffic data collection system comprises:
An exchange or service control node 1 for mechanically collecting per-call information according to predetermined setting conditions, a per- call information transfer device 2 for transferring the per-call information collected there, and storing and transferring the transferred per-call information. And a traffic data display / accumulation device 4 for displaying and storing the generated traffic data. In some cases, the call-by-call information transfer device collectively transfers call-by-call information from a plurality of exchanges or service control nodes to the traffic data creation device. The per-call information has items as shown in FIG. 2, but it is necessary to create traffic data that the transmission number, the reception number, the transmission time, the transmission time, the completion or incompleteness, and the incompleteness From the connection path information to the incomplete part. For example, in order to create traffic data from a specific terminal, a calling number, a calling time, a talk time, a completion / incomplete indication, and an incomplete cause are required.
Also, when creating traffic data between specific areas, the outgoing / incoming area is determined based on the area code / local area code included in the outgoing and incoming numbers, and the traffic data is determined based on the information from the outgoing time to the cause of incompleteness. Can be created.

As shown in FIG. 3, the first traffic data creating device 3 includes a call information receiving buffer 31, a sampling ratio holding unit 32, a sampling execution unit 33, a traffic data counting unit, a traffic data correction unit, , Traffic data holding unit 36 and output buffer 3
7 The per-call information receiving buffer 31 stores the transferred per-call information. The sampling execution unit 33 always refers to the sampling ratio held in the sampling ratio holding unit 32 and sequentially reads out the call-by-call information from the call-by-call information reception buffer in the order of arrival when the sampling ratio is 1:10, for example. Read as valid 2nd to 10th
The sampling of the call-by-call information is performed such that the twelfth is thinned (discarded), then the eleventh is made valid, and the twelfth to twentieth are thinned (discarded).

The traffic data correction unit 35 always refers to the sampling ratio of the sampling ratio holding unit 32,
A corresponding correction coefficient is created and held. As shown in FIG. 5, the relationship between the sampling ratio and the correction coefficient for each type of traffic data is as follows: data items in which the correction coefficient varies depending on the sampling ratio; There is a data item whose correction coefficient is 1. The traffic data counting unit 34 creates traffic data shown in FIG. 5 for traffic for each transmission and inter-region traffic from the information for each call. Generally, a method is provided in which a counter corresponding to the traffic data is provided, and the value of the counter is increased according to the data inside the call-specific information. The same applies to the present invention, except that the target per-call information is only the information that has been validated by the sampling execution unit 33. The traffic data items that do not need to be corrected are transferred to the traffic data holding unit 36 as they are.

The cycle of creating traffic data differs depending on the purpose of use of the data. For example, in the case of using the real time monitoring of the traffic situation, to data is needed 1-3 minutes period is sufficient data for one-hour cycle if the design of such network or switch. Therefore, the traffic data counting unit 34 transfers the value in the counter to the traffic data holding unit 36 based on the counting cycle information defined in each counter. At this time , a traffic data item whose correction coefficient does not depend on the sampling ratio is transferred to the traffic data holding unit 36 as it is.

On the other hand, the data item whose correction coefficient varies depending on the sampling ratio is transferred from the traffic data coefficient section 34 to the traffic data correction section 35, and after correcting the data using the correction coefficient, the traffic data correction section 35 outputs the traffic data. The transfer is performed to the holding unit 36.

Display / accumulation of traffic data shown in FIG.
When the device 4 displays data in real time or stores traffic data in an external storage device other than the traffic data holding unit 36, the data is transferred to the traffic data display / storage device 4 via the output buffer 37. Is done.

A second embodiment of the traffic data generating apparatus as shown in FIG. 4, the first embodiment shown in FIG. 3, the processing unit of the traffic data generator (CP
U) CPU utilization measuring unit 38 for constantly measuring the utilization of U)
And a sampling ratio table holding unit 39 for transferring the measured usage rate at a constant cycle, and a sampling ratio setting unit 30 for storing a new sampling ratio. For the CPU usage rate measuring unit 38, a measuring function provided in a normal computer can be used. The transfer cycle of the usage rate can be set arbitrarily. The correspondence between the usage rate of the processing device and the sampling ratio must be stored in the sampling ratio table holding unit 39 in advance. CPU usage measurement unit 3
When the sampling ratio corresponding to the usage rate transferred from 8 changes, the sampling ratio table holding unit 39 sends a new sampling ratio to the sampling ratio setting unit setting unit 30.

The sampling ratio setting unit 30 transfers the received sampling ratio to the sampling ratio holding unit 32 and also transfers the correction coefficient to the traffic data correction unit 35.

The operation of the sampling execution section 33 is the same as in the first embodiment. When the correction coefficient is 1 regardless of the sampling ratio, the traffic data counting unit 34
The transfer to the traffic data holding unit 36 for each measurement cycle is the same as in the first embodiment. In the case of data in which the correction coefficient fluctuates, the traffic data correction unit 35
However, every time the sampling ratio changes, the traffic data is counted.
The counter value is read from the unit 34, corrected and stored therein, and transferred to the traffic data holding unit 36 in a transfer cycle to the traffic data holding unit 36.

The traffic data correction unit 35 includes a timer monitoring unit 351, a primary counter 353, a secondary counter 354, and a correction execution unit 352 that holds the current correction coefficient and the immediately preceding correction coefficient. 352 instructs the primary counter 353 when the correction coefficient is changed,
The counter value is read from the traffic data counting unit 34. The counter value read from the traffic data counting unit 34 is stored in the primary counter 353, corrected by the correction coefficient before change stored in the correction execution unit 352, and then added to the secondary counter 354. When detecting the transfer time to the traffic data holding unit 36, the timer monitoring unit 351 instructs the correction execution unit 352 to read the counter value from the traffic data counting unit 34, and corrects the counter value with the changed current correction coefficient. And add it to the secondary counter. Thereafter, the timer monitoring unit instructs the secondary counter 354 to transfer the data to the traffic data holding unit 3.
6

The operation of the correction execution section 352 will be described with reference to the flowchart shown in FIG. When it is determined from the sampling ratio setting unit 30 that there is an instruction to change the sampling ratio (step 61), the primary counter 353 counts the numerical value counted from the traffic data counting unit 34 (change
The previous data) is read out (step 62), the correction is performed using the correction coefficient before the change (step 63), and the result is added to the secondary counter (step 64), and the primary counter 353 is obtained.
Is reset (step 65). If there is no change in the sampling ratio (step 61), the timer monitoring unit 351 determines that the transfer time has come (step 6).
6), the correction execution unit 352 causes the primary counter 353 to read the counter value from the traffic data counting unit 34 (step 67), corrects the value with a new correction coefficient (step 68), and adds the value to the value of the secondary counter 354. (Step 69), the primary counter is reset (Step 70).

[0022] As of the present invention is the exchange or Sir
The traffic data is created after sampling the per-call information extracted from the service control node, and thereafter, correction is performed according to the sampling ratio. For example, when the number of calls between specific destinations is created as traffic data, the call information for each call includes a calling phone number, a called phone number, and completion / incomplete indications. Then, it is determined whether or not the call corresponds to the call between the transmission area and the reception area to be measured, and if so, the counter for measuring traffic data is counted up. But,
If the number of per-call information is very large, the obtained per-call information is sampled, for example, only 1: 3, that is, 1/4, and only 1/4 of the call words and information are analyzed and processed by the above-described method. By multiplying the obtained count number by 4 (the correction coefficient is 4), it is regarded as call number data.

When calculating the hold time (the average value of the call duration time), the result of 1: 3 sampling and the result of processing all call-specific information should be statistically the same. correction coefficient will be be a 1.

In addition, a sampling function is not always performed, and a load condition (for example, a CPU usage rate) of a processing device that converts received call-by-call information into traffic data is observed (a computer usually has a measurement function). ), All the information per call is processed until an overload state is detected or a certain load state is reached, and sampling is started only when the overload or a certain load state is exceeded. This method may be a two-state control of whether or not to perform sampling,
Further, a control method in which the number of samples is reduced according to the load state may be used. Thus, it is possible to reduce the dynamic processing load such as the start of sampling and the reduction of the sampling ratio according to the load condition.

[0025]

As described above, according to the present invention, the call-by-call information collected from the exchange or the communication service control node is sampled at a required arbitrary ratio or at an optimum ratio according to the load state of the traffic data generating device. Therefore, it is not necessary to increase the processing capacity of the traffic data creation device in proportion to the increase in the information for each call, and it is possible to dynamically cope with a short-term load fluctuation of the information for each call. In addition, there is an effect that it is possible to more economically respond to a long-term load fluctuation.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of a traffic data collection system to which a traffic data collection method of the present invention is applied.

FIG. 2 is a configuration example of per-call information.

FIG. 3 is a block diagram of a first embodiment of a traffic data creation device.

FIG. 4 is a block diagram of a second embodiment of the traffic data creation device.

FIG. 5 is a diagram illustrating a relationship between a sampling ratio and a correction coefficient for each traffic data type.

FIG. 6 is a block diagram of a traffic data correction unit 35 shown in FIG. 3;

7 is a flowchart based on an algorithm of a correction execution unit 352 shown in FIG. 6;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 switch / service control node 2 call-by-call information transfer device 3 traffic data creation device 4 traffic data display / storage device 30 sampling ratio setting unit 31 call-by-call information reception buffer 32 sampling ratio holding unit 33 sampling execution unit 34 traffic data coefficient unit 35 Traffic data correction unit 36 Traffic data storage unit 37 Output buffer 38 CPU utilization measurement unit 39 Sampling ratio table storage unit 351 Timer monitoring unit 352 Correction execution unit 353 Primary counter 354 Secondary counter

Claims (2)

(57) [Claims] An exchange or a communication system constituting a communication network.
Calls for connection on a call-by-call basis from one or more
Collect information and create traffic data and output it
In the traffic data collection system with traffic data creation means that, the traffic data creation means, alone or in the exchange or the service control point
A per-call information storage means for storing per-call information collected from a plurality
Determine the stage, whether extract the call every information for each number as counted from among the call each information
Holds the sampling ratio indicating the sampling ratio value
A sampling ratio holding unit for storing the call-by-call information stored in the call-by-call information storage unit.
According to the sampling ratio held by the pulling ratio holding means.
A sampling execution means for sampling Te, sampled by the sampling execution means
Counter corresponding to each traffic data from call information
The number of completed calls, the number of uncompleted calls , and the average hold time
During completion rate, the traffic data including a circuit group concurrent connections
Data for each traffic data
Based on the counting cycle information defined in the corresponding counter.
Output the created traffic data depending on the period
Traffic data counting means, and each traffic output from the traffic data counting means.
Traffic data that needs correction
Data held by the sampling ratio holding means.
Of the traffic data sampling ratio
Compensates and outputs traffic data according to the positive coefficient
Correction means, the traffic data counting means, and the traffic data
Each traffic data output from the
Traffic data holding means for holding and outputting
Traffic data collection system, characterized in that: 2. The traffic data creating means according to claim 1,
The usage rate of the processing device possessed by the
Previously holding a CPU used for measuring means for measuring, the correspondence table between utilization and sampling ratio of the processing device
On the basis of the correspondence table, and
From the processing equipment that is transferred at regular intervals from
Find the corresponding sampling ratio, and the sampling ratio changes
Sampling ratio table that sends out the sampling ratio when
Sample holding means, and a sample received from the sampling ratio table holding means.
Transfer the pulling ratio to the sampling ratio holding means
And a correction coefficient corresponding to the sampling ratio.
Sampling ratio transferred to traffic data correction means
Setting means, and the traffic data correcting means includes the traffic data correcting means.
Of each traffic data output from the data counting means.
For traffic data requiring correction,
According to the correction coefficient transferred from the sampling ratio setting means.
And outputting the corrected data.
Traffic data collection system.