JP2809263B2 - Automatic message transmission device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic message transmitting apparatus, and more particularly to an automatic message transmitting apparatus used for automatic verification of response performance and durability performance of an online system.

[0002]

2. Description of the Related Art As shown in FIG. 6, a conventional automatic message transmitting apparatus 60 includes a transmission condition registration unit 61 and a transmission condition information 6.
a, a transmission management means 62, a message transmission means 63 including a message creation area 63a, and a system timer 64, the main parts of which are constituted.

[0003] Transmission condition registration means 61 sets transmission condition information 6a, such as the continuous transmission time of a message and the number of transmissions per unit time in the automatic message transmission device 60 determined by the user.

At the start of continuous transmission, the transmission management means 62 calculates a message transmission interval (= 1 / number of transmissions per unit time) based on the set transmission condition information 6a. Further, the transmission management means 62 controls the system timer 6 during the continuous transmission period.
4 and sends a message transmission request to the message transmission means 63 every time the message transmission interval calculated in advance elapses.

[0005] When receiving a message transmission request from the transmission management means 62, the message transmission means 63 creates a transmission message in the message creation area 63a on the mounting memory and sends it to the network.

[0006]

In the above-described conventional automatic message transmission device 60, the system timer 64 is used for waiting for the message transmission interval. Therefore, the message transmission interval is rounded by the accuracy of the system timer 64. Therefore, there is a problem that it is impossible to handle a message transmission interval less than the accuracy of the system timer 64.

In addition, the load of the machine itself for realizing the automatic message transmission device 60 is not considered in the message transmission interval,
When the load on the machine increases, a transmission delay occurs with this, and there is a problem that the number of transmissions per unit time is smaller than the set number of transmissions per unit time. As a result, an error between the scheduled number of transmitted messages and the actually transmitted number of messages has been accumulated during the period of transmitting the message, and it has become impossible to withstand long-time operation.
This problem has been particularly remarkable when the automatic message transmitting device 60 is constructed on a time sharing system.

Further, for this reason, it is necessary for the user to predict the machine load and to overestimate the setting value of the transmission condition, so that the burden on the user is large and the reliability of the setting value of the transmission condition is high. There was a problem that it was low.

SUMMARY OF THE INVENTION In view of the foregoing, it is an object of the present invention to make it possible to finely adjust the entire message transmission interval irrespective of the accuracy of a system timer, and to reduce the load on a machine that implements an automatic message transmission device. It is an object of the present invention to provide an automatic message transmitting apparatus capable of always keeping the number of transmissions per unit time constant regardless of the above.

As a prior art document, Japanese Unexamined Patent Publication No.
Japanese Patent Application Laid-Open No. 58073 discloses a technique in which a data transfer control device stops sending a data request signal to a host device when the difference between the number of data request signals and the number of data transmission signals becomes equal to the data buffer size. The present invention discloses a data transfer control method described above, which is completely different from the automatic message transmission device of the present invention.

[0011]

An automatic message transmission device according to the present invention is an automatic message transmission device for automatically and repeatedly transmitting a message to a partner station connected via a network at a predetermined message transmission interval. Transmission condition registration means for the user to set the transmission conditions for automatically transmitting the message, and recognizes the transmission timing of the message according to the transmission condition information set by the transmission condition registration means, and periodically sends a transmission request. Transmission management means for generating a transmission message based on a transmission request from the transmission management means, and transmitting the message over a network; and transmission management information in response to a notification of completion of transmission of the message by the message transmission means. Transmission management information updating means for updating the transmission management information, and periodically transmitting the transmission management information updated by the transmission management information updating means, and transmitting a message to the transmission management means. And a transmission condition verification means for instructing correction of the timing of issuing the request.

[0012]

Next, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of an automatic message transmitting apparatus 10 according to one embodiment of the present invention. The automatic message transmitting apparatus 10 according to the present embodiment includes a transmission condition registration unit 11 for a user to set a transmission condition for automatically transmitting a message, transmission condition information 1a, and a transmission condition registration unit 11.
The transmission management means 12 recognizes the transmission timing of the message in accordance with the transmission condition information 1a set by the user and periodically issues a transmission request, and creates a transmission message in the message creation area 13a based on the transmission request from the transmission management means 12. Message sending means 13 for sending the message to the network, and message sending means 1
3, transmission management information 1b in response to the transmission completion notification of the message
And a transmission condition for periodically monitoring the transmission management information 1b updated by the transmission management information updating unit 14 and instructing the transmission management unit 12 to correct the issuance timing of the message transmission request. The main part is comprised of the verification means 15 and the system timer 16.

As shown in FIG. 2, the transmission condition information 1a includes information such as the continuous transmission time of a message in the automatic message transmitting apparatus 10, the number of transmissions per unit time, an allowable error rate, and a transmission message format. It is a thing.

The transmission management information 1b is composed of the total number of transmissions and the continuous transmission elapsed time, as shown in FIG.

Referring to FIG. 4, the transmission message format in transmission condition information 1a includes message base information and undefined data control information. The undefined data control information includes an undefined data position, a minimum value, and a maximum value.

Referring to FIG. 5, transmission condition verification means 15
Is performed in the total number of transmissions per unit time calculation step 15
1, a permissible minimum value calculation step 152, a permissible maximum value calculation step 153, a total number of transmissions per unit time / permissible minimum value comparison step 154, a total number of transmissions per unit time / permissible maximum value comparison step 155, It comprises a transmission interval shortening instruction step 156 and a telegram transmission interval extension instruction step 157.

Next, the operation of the thus configured automatic message transmitting apparatus 10 of the present embodiment will be described.

The user sets the transmission condition registration means 1 in advance.
1, transmission conditions for automatically transmitting a message are set. The transmission condition input by the transmission condition registration unit 11 is stored on the storage device as transmission condition information 1a.

At the start of continuous transmission, the transmission management means 12 determines a message transmission interval based on the number of transmissions per unit time in the transmission condition information 1a. The message transmission interval is the reciprocal of the number of transmissions per unit time, that is, the message transmission interval = 1.
/ Calculated as the number of transmissions per unit time.

For example, the setting value of the transmission condition information 1a shown in FIG. 2 (the number of transmissions per unit time = 40.00 [times / sec]
c]), the message transmission interval = 1/40.
00 [times / sec] = 0.025 [sec / times] = 25
[Msec / times]. Here, the automatic message transmission device 1
Assuming that the accuracy of the system timer 16 is 0 [msec] unit, the message transmission interval is 20 [msec /
Times].

At the start of the continuous transmission, the transmission management means 12 notifies the transmission management information updating means 14 of the start of the continuous transmission.

When receiving the continuous transmission start notification, the transmission management information updating means 14 stores the time of the system timer 16 at that time as the continuous transmission start time.

During the period from the start of the continuous transmission to the end of the continuous transmission, the transmission management means 12 waits for the elapse of the message transmission interval by monitoring the system timer 16, and every time the message transmission interval elapses, the transmission management means 12 waits for the elapse of the message transmission interval. 13 is transmitted.

Upon receiving a message transmission request from the transmission management means 12, the message transmission means 13 sends the transmission message area 13 in the mounting memory in accordance with the transmission message format of the transmission condition information 1a.
A transmission message is created on a and sent to the network.

For example, the message transmission means 13 obtains a transmission message format from the transmission condition information 1a, selects a numerical value within the range between the minimum value and the maximum value in the undefined data control information by using a random number or the like, and determines the position of the undefined data. Is repeated by the number of times of the undefined data position in the undefined data control information, and the content of the message base information is defined as a transmission message.

When the transmission of the message to the network is completed, the message transmitting means 13 notifies the transmission management information updating means 14 of the completion of transmission.

When the transmission management information updating means 14 receives the transmission completion notification from the message transmission means 13, the transmission management information 1b
Update. Specifically, for the transmission management information 1b shown in FIG. 3, the total number of transmissions is incremented by one, the current time of the system timer 16 is obtained, and the elapsed time from the continuous transmission start time is set as the continuous transmission elapsed time. I do.

The transmission condition verification means 15 transmits the transmission management information 1
By monitoring b periodically, it is determined whether or not the message transmission according to the transmission condition is being performed. At this time,
If the current transmission status is out of the transmission conditions, a request for changing the message transmission interval is sent to the transmission management means 12.

Taking the transmission condition information 1a in FIG. 2 and the transmission management information 1b in FIG. 3 as an example, the operation is as follows.

First, the transmission condition verification means 15 obtains the number of transmissions per unit time from the continuous transmission start time to the current time from the transmission management information 1b (step 151). Specifically, the total number of transmissions per unit time = total number of transmissions / continuous transmission elapsed time = 1247 [times] /33.24 [sec] =
37.52 [times / sec] is calculated.

Next, the transmission condition verification means 15 calculates an allowable minimum value and an allowable maximum value from the number of transmissions per unit time and the allowable error rate in the transmission condition information 1a (step 15).
2 and 153). Specifically, the permissible minimum value = the number of transmissions per unit time × (100−error tolerance) = 40.00
[Sec / times] × (100-5) [%] = 38.00
[Sec / time], allowable maximum value = number of transmissions per unit time ×
(100 + error tolerance) = 30.00 [sec / time] ×
It is calculated as (100 + 5) [%] = 42.00 [sec / times].

Subsequently, the transmission condition verifying means 15 determines, based on the calculated permissible minimum value and permissible maximum value, that the previously calculated number of transmissions per unit time within the range between the permissible maximum value and permissible minimum value. It is determined whether there is any data (steps 154 and 155). If the total number of transmissions per unit time is smaller than the permissible minimum value (yes in step 154), the transmission management unit 12 is instructed to shorten the message transmission interval. (Step 156) If the total number of transmissions per unit time is larger than the maximum allowable value (Yes in Step 155), the transmission management unit 12 is instructed to extend the message transmission interval (Step 157). More specifically, since the number of transmissions per unit time = 37.52 <38.00 = allowable minimum value, an instruction to shorten the message transmission interval is issued to the transmission management unit 12.

The transmission management means 12 includes the transmission condition verification means 1
When an instruction to extend the message transmission interval is received from the control unit 5, the current message transmission interval is extended by the minimum accuracy time of the system timer 16.

Conversely, upon receiving an instruction to shorten the message transmission interval from the transmission condition verification unit 15, the transmission management unit 12 reduces the current message transmission interval by the minimum accuracy time of the system timer 16. However, the lower limit of the message transmission interval is
0 [msec / times]. At this time, if an instruction to shorten the message transmission interval is received, the message transmission interval is not changed. In the example of FIG. 2, since the instruction to shorten the message transmission interval is received from the transmission condition verification unit 15, the message transmission interval is changed to 20 + 10 = 30 [msec / times].

With the above operation, the automatic message transmitting device 1
When the value is 0, the number of transmissions of the message per unit time can be always kept constant.

[0037]

As described above, the present invention provides a system timer by providing a transmission condition registering unit, a transmission management unit, a message transmission unit, a transmission management information updating unit and a transmission condition verification unit in an automatic message transmission device. It is possible to specify transmission conditions corresponding to message transmission intervals other than integer multiples of the minimum precision time of, regardless of the accuracy of the system timer,
There is an effect that the message transmission interval as a whole can be finely adjusted.

Further, even if a transmission delay occurs due to an increase in the load of the machine itself that realizes the automatic message transmission device, it is possible to automatically correct the transmission delay. The number of transmissions per unit time can always be kept constant irrespective of the load on the machine itself, and this has the effect of being able to withstand long-term operation.

Further, this eliminates the need for the user to predict the machine load and overestimate the set value of the transmission condition, thereby reducing the burden on the user and improving the reliability of the set value of the transmission condition. There is an effect of improving.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an automatic message transmission device according to one embodiment of the present invention.

FIG. 2 is a diagram showing contents of transmission condition information in FIG. 1;

FIG. 3 is a diagram showing contents of transmission management information in FIG. 1;

FIG. 4 is a diagram showing more detailed contents of a transmission message format in FIG. 2;

FIG. 5 is a flowchart showing processing of a transmission condition verification unit in FIG. 1;

FIG. 6 is a block diagram illustrating a conventional automatic message transmission device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Automatic message transmission apparatus 11 Transmission condition registration means 12 Transmission management means 13 Message transmission means 14 Transmission management information updating means 15 Transmission condition verification means 1a Transmission condition information 1b Transmission management information

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Claims (5)

(57) [Claims] 1. An automatic message transmitting apparatus for automatically and repeatedly transmitting a message to a partner station connected via a network at a predetermined message transmission interval, using a transmission condition for automatically transmitting a message. Transmission condition registration means for setting by the user, transmission management means for recognizing the transmission timing of the message in accordance with the transmission condition information set by the transmission condition registration means and issuing a transmission request, and a transmission request from the transmission management means. Message sending means for creating a sending message on the basis of the message and sending the message over a network; sending management information updating means for updating sending management information in response to a notification of completion of sending of the message by the message sending means; The transmission condition information instructing the transmission management means to correct the issuance timing of the transmission request of the message at regular intervals by monitoring the transmission management information updated by Automatic message transmitting device, characterized in that it comprises a means. 2. The automatic message transmission device according to claim 1, wherein the transmission condition information includes a number of transmissions per unit time, an allowable error rate, and a transmission message format. 3. The automatic message transmission device according to claim 1, wherein the transmission management information comprises a total number of transmissions and a continuous transmission elapsed time. 4. The transmission condition verification means calculates the total number of transmissions per unit time from the total number of transmissions of the transmission management information and the continuous transmission elapsed time, and calculates the number of transmissions per unit time of the transmission condition information and an error tolerance. Calculate the permissible minimum value and permissible maximum value from the above, and when the total number of transmissions per unit time is smaller than the permissible minimum value, instruct the transmission management means to shorten the message transmission interval, and 2. The automatic message transmission device according to claim 1, wherein when the value is larger than an allowable maximum value, the transmission management unit is instructed to extend a message transmission interval. 5. The transmission message format in the transmission condition information includes message base information and undefined data control information, and the message transmission unit acquires the transmission message format from the transmission condition information, and The process of selecting a numerical value within the range between the minimum value and the maximum value by random numbers and setting the position in the message base information indicated by the undefined data position is repeated by the number of undefined data positions in the undefined data control information,
2. The automatic message transmission device according to claim 1, wherein the content of the message base information is a transmission message.