KR100188856B1 - Telephone error detection method and apparatus of pbx - Google Patents

Abstract

The present invention provides a method and apparatus for detecting abnormalities of telephones in a simple switched telephone system that can detect when a communication error occurs due to an abnormal state of each telephone and warn the external telephone of an abnormal state. It is about.

In the present invention, the communication error occurrence rate is detected by detecting the number of message transmissions for each phone and whether the message is responded accordingly. In addition, for the telephones with the communication error occurrence rate more than a certain level, the transmission of the message is stopped and the error state is outputted through another specific telephone.

Therefore, according to the present invention, the reliability and operability of the simplified switching telephone system can be improved.

Description

Telephone error detection method and apparatus thereof in simplified switching telephone system

1 is a block diagram showing the configuration of a general simple switched telephone system.

2 is a block diagram showing the configuration of a simple switched telephone system according to an embodiment of the present invention.

FIG. 3 is a diagram showing an example of the data structure stored in the data memory in FIG.

4 is an operation flowchart for explaining the operation of the system shown in FIG.

* Explanation of symbols for main parts of the drawings

10 main device 11 switch unit

12: trunk line trunk module 13: data transceiver

14: voice and data conversion unit 20: telephone

21: timer 22: data memory

23: control unit 24: program memory

The present invention relates to a key telephone system. In particular, when a communication error occurs due to an abnormal state of each phone, the present invention can detect the error and warn the outside of the telephone. The present invention relates to a method for detecting a telephone abnormality of a simple switched telephone system and a device thereof.

A simple switched telephone system allows multiple telephones to be connected to one main device so that a predetermined telephone line can be shared by several telephones. This is generally the case when a large number of people use a telephone such as an office or a building. Usually installed and operated.

1 is a block diagram schematically showing the configuration of the above-mentioned simple switched telephone system. In the drawing, reference numeral 10 denotes a main device, and 20 denotes a telephone connected to the main device 10. In FIG.

In addition, on the main device 10 side, reference numeral 11 is a switch unit for switching connection between the telephone and the telephone or between the telephone and the trunk line under the control of the microprocessor 19, which will be described later, and 12 is the simplified telephone exchange. It is a trunk line trunk module that interfaces with the system and the trunk line, which connects the subscriber to the trunk line when the subscriber requests outgoing calls, and allows the subscriber to respond when a call is made from the trunk line.

Further, reference numeral 13 denotes a button signal coming from each of the telephones 20 (20 ₁ to 20 _n ), for example, a button signal from the telephone 20 according to the user's operation, and is transmitted to the telephone 20 from the main apparatus 10 side. The data transceiver 14 is a voice and data converter for mixing or separating a voice signal and a data signal transmitted and received by the data transmitter 13.

Reference numeral 15 denotes a timer for generating predetermined time data, and 16 denotes a program memory in which an operation program of the microprocessor 19 is stored.

Further, reference numeral 19 denotes a control unit for controlling the entire main device, which controls the switch unit 11 to connect a telephone to a telephone or a telephone line and a trunk line, and the liquid crystal display data corresponding to an input signal from the telephone 20. Will print

That is, in the simple switching telephone system described above, the control unit 19 on the main unit 10 side senses the operation state of each of the telephones 20 ₁ to 20 _n , and accordingly switches the switch unit 11 or another device portion. By controlling, control processing such as connection between the telephone and the telephone, connection of the telephone and trunk line, or setting of functions for other telephones is executed.

On the other hand, the operation state detection of the telephone 20 is performed by data transmission and reception between the control unit 19 and the telephone (20). That is, in the simple switching telephone system, since the state of the plurality of telephones 20 ₁ to 20 _n must be detected by one control unit 19, the control unit 19 transmits and receives a data transmission / reception unit 13 to each telephone 20. FIG. By sequentially sending the READY signal through the) and then receiving a response message from the telephone 20 through the data transmission and reception unit 13 to detect the operation state of each telephone 20, that is, whether each button operation It is.

Therefore, in the conventional simple switched telephone system described above, when there is no response message from the telephone 20 after the READY signal is sent from the controller 19 to the telephone due to a communication error or an abnormal state of the telephone, the controller ( 19) is set to the standby state for a predetermined time for receiving a response message from the phone, there is a fear that the operating speed of the system is reduced.

In addition, in the conventional system described above, even when an abnormality occurs in the telephone, the user cannot easily recognize the abnormal state, which causes inconvenience in use.

Accordingly, the present invention was created to solve the above problems, and prevents the performance degradation of the system due to a communication error or an abnormal state of the telephone, and can display a telephone having an abnormality. An object of the present invention is to provide a method and apparatus for detecting a telephone abnormality.

The telephone abnormality detection method of the simplified switched telephone system according to the present invention for realizing the above object is a simple switched telephone having a plurality of telephones each having a different extension number, and a claim for providing a call and exchange function for the telephone. In the system, an error rate is calculated based on an error occurrence count and an error occurrence count storing an error occurrence count based on a message sending count storing step of storing a message sending count for each phone, and whether or not there is a response message for sending a message. And an error rate calculating step of calculating and a message sending blocking step of blocking message transmission to a corresponding telephone when it is determined that the error rate is equal to or higher than a predetermined level in the error rate calculating step.

In addition, the telephone abnormality detection device of the simple switching telephone system according to the present invention for realizing the above object is a simple telephone having a plurality of telephones each having a different extension number and a claim value for providing a call and interrogation function for these telephones. A switching telephone system comprising: first memory means for storing an extension number for transmitting a message, storing an error state, a message transmission frequency, and an error occurrence frequency corresponding to the extension number, and a timer for generating predetermined time data Means, error state detecting means for detecting an error state of a corresponding extension number and registering it in the first memory means based on the number of message transmissions and the number of occurrences of an error after a predetermined time by the timer means, and the first memory; Sending and receiving a sequential message based on the extension number stored in the means, and based on the result of the sending and receiving 1, wherein the memory means is updated and registered, and the message transmission control means for prohibiting the transmission of the message to the extension number registered in the error state by the error state detection means.

According to the present invention having the above-described configuration, the communication error occurrence rate is detected by detecting the number of message transmissions for each telephone and whether the message is responded accordingly. In addition, for the telephones with the communication error occurrence rate more than a certain level, the transmission of the message is stopped and the error state is output through another specific telephone.

Therefore, according to the present invention, the reliability and operability of the simplified switching telephone system can be improved.

Hereinafter, an embodiment according to the present invention will be described with reference to the drawings.

2 is a block diagram showing an apparatus for detecting an abnormality of a telephone of a simple switched telephone system according to an embodiment of the present invention. In FIG. 2, the same parts as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 2, reference numeral 21 denotes a data memory for storing an error occurrence state of each telephone 20 ₁ to 20 _n .

Here, the data memory 22 has a respective storage area for each of the telephones 20 ₁ to 20 _n as shown in FIG. 3A, and each storage area has data of a format configuration as shown in FIG. 3B, for example. Will be stored. In FIG. 3B, the error state indicates whether or not the corresponding phone is in an operable state, and the number of message transmissions indicates the number of times the READY signal is transmitted from the main device 10 to the telephone number 20 of the corresponding extension number. Indicates the number of times there was no response message after sending the READY signal.

In addition, in Fig. 2, reference numeral 23 denotes a control unit which executes a normal telephone exchange processing apparatus and also performs telephone abnormality detection according to the present invention, and 24 denotes a program memory in which an operation program of the control unit 23 is stored. to be.

Next, the operation of the system having the above-described configuration will be described using the flowchart shown in FIG.

Simple in the operating state of the switched telephone system, the controller 19 then issues a sequential READY signal to the telephone (20 _n) from the telephone set (20 _1), the control processing according to the message signals from the telephone 20 In this case, the transmission order of the READY signal is executed in the order in which the data is stored in the data memory 22, and the query is first made by querying a bit value indicating an error state of the data memory 22. It detects whether an abnormal state is impossible to use (ST1, ST2 steps). At this time, if the abnormal state is not set, the READY signal is sent to the corresponding phone and the number of message transmission counts of the data memory 22 is counted up (step ST3). It is determined whether a response message is received (steps ST4 and ST5), and if a message is not received, it is determined whether the predetermined time has elapsed after up counting the number of error occurrences of the data memory 22 (step ST6). The judgment is made (ST8 step).

The predetermined time in step ST8 is a unit time for calculating the communication error rate of the telephone, and is set to, for example, about 30 seconds. When a response message is received in step ST4, control processing corresponding to the response message is executed.

On the other hand, when a predetermined time has elapsed in step ST8, the controller 23 calculates an error rate from the data memory 22 based on the number of occurrences of an error and the number of message transmissions of the station, and the error rate is a predetermined rate, for example, 25% or more. It is determined whether or not the recognition (ST10 step).

When the error rate exceeds 25%, a bit indicating an abnormal state is set in the corresponding extension number area of the data memory 22, and the display data for displaying the telephone abnormal state is read out from the program memory 24. It is output to a predetermined telephone through the transmission and reception unit 13, so that the system administrator can easily determine the telephone has a problem.

On the other hand, when the error rate is less than 25% after the output of the display data or in step ST10, the error occurrence frequency and the message transmission frequency are deleted for the entire storage area of the data memory 22, and the timer 21 is also reset. It will return to the initial state.

That is, in the above embodiment, since a communication error is alerted to a predetermined telephone for a telephone in which 25% or more has occurred, for example, the administrator can easily recognize an abnormal state of the system.

In addition, since the transmission of the READY signal is interrupted and skipped in the subsequent operation, the telephone which has been determined to have an error rate of 25% or more as described above can prevent the operation speed of the system from being lowered due to an abnormal state. The safety of the will be improved.

In addition, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the technical gist of the present invention.

As described above, according to the present invention, when a communication error occurs due to the occurrence of an abnormal state of each telephone, it is possible to detect the alarm and to warn the outside of the telephone having the abnormal state. It is possible to realize a method and apparatus for detecting a telephone abnormality of a simple switched telephone system that can improve the stability of a system by blocking a transmission / reception operation of a message to a conventional telephone.

Claims (6)

A simple switching telephone system having a plurality of telephones each having a different extension number and an assertion value for providing a call and exchange function for the telephones, comprising: a message transmission frequency storing step of storing message transmission frequency for each telephone; And an error occurrence count storing step of storing an error occurrence count based on the presence or absence of a response message for sending a message, an error rate calculating step of calculating an error rate based on the message sending count and the error occurrence count, and the error rate calculating step. And a message transmission blocking step of blocking the transmission of the message to the corresponding telephone when the error rate is determined as the above error rate. The method as claimed in claim 1, further comprising a display step of displaying a phone which is blocked from sending a message through a specific phone in the message sending blocking step. The method of claim 1, wherein the error rate calculating step is performed every predetermined time unit or more. The method of claim 1, wherein the error rate calculating step is performed at a predetermined time unit or more and an error is detected. In a simple switched telephone system having a plurality of telephones each having a different extension number, and a claim value for providing a call and exchange function for these phones, the extension number for transmitting the message is stored and the corresponding extension number is supported. A first memory means for storing an error state, a message sending count and an error occurrence count, a timer means for generating predetermined time data, and the message sending count and an error occurrence count after a predetermined time by the timer means. An error state detecting means for detecting an error state of the corresponding extension number and registering it in the first memory means, and sequentially transmitting and receiving a message based on the extension number stored in the first memory means, Renew and register the first memory means, but for the extension number registered in the error state by the error state detecting means. Is a simple exchange telephone call failure detecting device of the system, characterized in that configured to include a message transmission control means for prohibiting message is sent. 6. The apparatus of claim 5, wherein the message transmission control means outputs an extension number registered in an error state through a specific extension number.