KR100246171B1 - Message processing device and method in keyphone system - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key phone system, and in particular, when processing a message for an extension terminal, by periodically updating the message priority according to the amount of messages for each extension terminal and processing the message according to the message priority, the key phone system The present invention relates to a message processing apparatus and method for improving a message processing efficiency of a message and preventing a loss of a message.

In the conventional key phone system, when processing a message for an extension terminal, a uniform message processing opportunity is provided to all extension terminals, thereby providing a message processing opportunity even for an extension terminal that does not have a message to be processed. However, there is a problem in that a message is lost if a message is transmitted that exceeds the normal message processing limit.

According to the present invention, when a message for an extension terminal is to be processed in a key phone system, a message processing order is set by specifying a message priority according to the amount of messages for each extension terminal, thereby improving message processing speed and processing efficiency, and corresponding message priority. By periodically updating the rank, it is possible to prevent the loss of messages.

Description

Apparatus and method for processing messages in keyphone system

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key phone system, and in particular, when processing a message for an extension terminal, by periodically updating the message priority according to the amount of messages for each extension terminal and processing the message according to the message priority, the key phone system The present invention relates to a message processing apparatus and method for improving a message processing efficiency of a message and preventing a loss of a message.

In general, in the conventional key phone system, the station terminals are connected in sequence to provide message processing opportunities for the corresponding station terminals uniformly. In the use environment of the general key phone system, the messages are not uniformly generated in each station terminal station. In the case of providing a uniform message processing opportunity, the message processing speed is lowered by providing a message processing opportunity even to an extension terminal that has no message to process. In addition, when a message exceeding a normal processing limit is transmitted to an extension terminal, if a message continuously transmitted in excess of the message storage corresponding to the extension terminal accumulates, the storage capacity of the corresponding message storage is exceeded and transmitted. Was lost.

As shown in FIG. 1, a conventional key phone system KPS1 for processing a message as described above includes a message storage unit 11, a buffer 12, a central processing unit 13, an extension interface unit 14, and an event. And a storage unit 15 and an interrupt generation circuit unit 16.

The message storage unit 11 is composed of a plurality of message queues corresponding to the extension number to store the message to be transmitted to the extension number for each extension number, the buffer 12 is connected to the extension interface unit 14 The station numbers of all extension terminals are sequentially stored, and the central processing unit 13 controls all operations performed in the system, and controls message processing operations for the extension terminals according to message processing programs stored in its own memory. . The station interface unit 14 connects the stations according to the control of the central processing unit 13 to match signals input and output to the station, and the event storage unit 15 stores all processing request data transmitted from the station terminal. The interrupt generation circuit unit 16 serves to generate an interrupt for data communication between the key phone system KPS1 and the station terminal.

The message processing operation for the extension terminal in the conventional key phone system KPS1 as described above is performed in the order as shown in FIG.

First, when an interrupt for transmitting a message stored in the message storage section 11 to the extension terminal is generated by the interrupt generation circuit section 16 (step S21), the central processing unit 13 causes the top of the buffer 12 to be the highest. After the extension number stored in the extension is fetched from the buffer 12 (step S22), it is determined whether or not the message is stored in the message storage unit 11 corresponding to the extension number (step S23). The central processing unit 13 draws out one message corresponding to the extension number from the message storage unit 11 (step S24). After step S24, the retrieved message is switched to a form capable of transmission (step S25), and the extension interface unit 14 is controlled to configure a call path with an extension terminal corresponding to the extension number (step S26). In step S27, the message is transmitted. After step S27, when processing request data is received from the extension terminal (step S28), the central processing unit 13 converts the received processing request data into a form that can be stored in the event storage unit 15, and the event storage unit 15 (Step S29). After step S29, the central processing unit 13 controls the buffer 12 to determine whether there is the next extension number (step S30), and ends the operation if there is no next extension number, and if there is the next extension number, the buffer 12 After the extension number is taken out (Step S33), the flow returns to Step S23 to perform a repeating operation. On the other hand, if no message is stored in step S23, the central processing unit 13 controls the extension interface unit 14 to form a call path with the extension terminal corresponding to the extension number (step S31), and to the extension terminal. After notifying that there are no messages to process (step S32), the operation of step S30 is performed.

In the conventional key phone system as described above, when processing a message for an extension terminal, a uniform message processing opportunity is provided to all extension terminals, thereby providing a message processing opportunity even for an extension terminal that does not have a message to process. There is a problem that a message is lost, and a message is lost when a message exceeding a normal message processing limit is transmitted.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object thereof is to specify a priority for message processing according to the amount of messages for each extension terminal in a keyphone system, and then differentially process message processing opportunities according to the priorities. The message processing speed is improved, and the priority for processing the message is periodically updated to prevent message loss and to improve the message processing efficiency.

Features of the present invention for achieving the above object, the message storage unit for storing the message to be transmitted to the extension terminal for each extension number; An interrupt generation circuit unit for generating an interrupt for data communication with the extension terminal; An extension interface unit for connecting an extension to match signals inputted and outputted to the extension; A key phone system having an event storage unit for storing processing request data transmitted from an extension terminal, comprising: a priority table storage unit for storing the extension number of the extension terminal in a message processing order; A priority counter for storing and counting index numbers corresponding to the stored extension numbers according to the message processing order; An entry counter for counting the number of entries in which a message is stored in the message storage unit and storing the number of entries for each extension number; Controls all operations performed in the key phone system, and controls message processing operations for the extension terminal, sets message priorities, and updates corresponding message priorities according to message processing programs stored in its own memory. A central processing unit that registers a predetermined time with the timer; And a timer for counting a predetermined time registered by the central processing unit and transmitting a "time out" message to the central processing unit when the predetermined time expires.

Another feature of the present invention includes a first step of registering a predetermined time for updating the message priority and periodically updating and storing the message priority; And a second process of processing a message to be transmitted to the extension terminal according to the message priority stored in the first process.

The first step includes: a first step of reading the number of entries for the extension number if a predetermined time registered for updating the message priority is expired and a " time out " message is authorized; A second step of updating a message priority in order from an extension number having a large number of entries after the first step, and then setting a message processing order according to the message priority; And storing the index number according to the message processing order, and returning to the first step to perform a repeating operation.

On the other hand, the second process is a first step of withdrawing the highest index number when an interrupt occurs; A second step of fetching an extension number corresponding to the corresponding index number after the first step, and then fetching one message corresponding to the extension number and converting the message into a transferable form; After the second step, by forming a call path with the extension terminal and transmitting the corresponding message and reducing the number of entries by '1', if the processing request data is received, the processing request data is converted into a form that can be stored and stored. Step 3; After the third step, if there is a next index number, the index number is withdrawn, and then returns to the second step, characterized in that it comprises a fourth step of performing a repeating operation.

1 is a block diagram of a conventional key phone system.

2 is a flowchart illustrating a message processing operation in a conventional key phone system.

3 is a block diagram of a key phone system according to the present invention;

4 is a flowchart illustrating a message priority update operation in a key phone system according to the present invention.

5 is a flowchart illustrating a message processing operation in a key phone system according to the present invention.

Explanation of symbols on the main parts of the drawings

11, 22: message storage unit 12: buffer

13, 25: central processing unit 14, 26: station interface unit

15, 27: event storage unit 16, 29: interrupt generation circuit unit

21: entry counter 23: priority counter

24: priority table storage unit 28: timer

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Key phone system KPS2 according to the present invention, as shown in Figure 3, the entry counter 21, message storage unit 22, priority counter 23, priority table storage unit 24, central processing A device 25, an extension interface unit 26, an event storage unit 27, a timer 28, and an interrupt generation circuit unit 29 are provided.

The entry counter 21 counts the number of entries in which the message is stored in the message storage unit 22 and stores the number of entries for each extension number, and the message storage unit 22 is composed of a message queue corresponding to the extension number and transmitted to the corresponding extension number. The message is stored, and the priority counter 23 stores and counts the index number corresponding to the stored extension number according to the message processing order of the priority table storage unit 24 under the control of the central processing unit 25. The priority table storage section 24 stores the extension numbers of all extension terminals connected to the extension interface unit 26 in the message processing order set by the central processing unit 25. The central processing unit 25 controls all operations performed in the system, controls message processing operations for each extension terminal according to a message processing program stored in its own memory, sets a message priority, and sends a corresponding message. The timer 28 registers a predetermined time for updating the priority. The station interface unit 26 connects the stations according to the control of the central processing unit 25 to match signals input and output to the station, and the event storage unit 27 stores all processing request data transmitted from the station terminal. do. The timer 28 counts a predetermined time registered by the central processing unit 25 and transmits a "time out" message to the central processing unit 25 when the predetermined time expires, and the interrupt generating circuit unit 29 It serves to generate an interrupt for data communication between the key phone system KPS2 and the extension terminal.

Referring to FIGS. 4 and 5, a message processing process in the key phone system KPS2 according to the present invention configured as described above is as follows.

First, the operation of updating the message priority in the key phone system KPS2 proceeds in the order shown in FIG. 4.

When the predetermined time for updating the message priority is registered in the timer 28 by the central processing unit 25 (step S41), the timer 28 counts the registered predetermined time and when the predetermined time ends, " Timeout " message is issued to the central processing unit 25 (step S42), and the central processing unit 25 reads the number of entries for each extension number counted by the entry counter 21 (step S43). . From the number of entries by extension number read in step S43, the message priority is specified in order from the extension number having the largest number of entries (step S44). Then, the extension number having the highest message priority is recorded more than the other extension number while the extension number is increased. The message processing procedure is set (step S45). After step S45, the central processing unit 25 stores the extension number according to the message processing order in the priority table storage unit 24 (step S46), and the index number corresponding to the extension number stored according to the message processing order. Is stored in the priority counter 23 (step S47), and the flow returns to step S41 to perform the repetitive operation.

In the state where the message priority is updated through the above process, the key phone system KPS2 operates in the order shown in FIG. 5 to process the message.

First, when an interrupt for transmitting a message stored in the message storage section 22 to the extension terminal is generated by the interrupt generation circuit section 29 (step S51), the central processing unit 25 receives the priority counter 23. After retrieving the highest index number stored in (step S52), the extension number corresponding to the index number is retrieved from the priority table storage unit 24 (step S53). After step S53, the central processing unit 25 withdraws one message corresponding to the extended extension number from the message storage unit 22 (step S54), switches the message in a form that can be transmitted to the extension terminal (step S54). S55), the extension interface unit 26 is controlled to configure a call path with an extension terminal corresponding to the extension number (step S56), and an entry counter corresponding to the extension number while transmitting a message to the extension terminal (step S56). The number of entries 21) is decreased by one (step S57). After step S57, when processing request data is received from the extension terminal (step S58), the central processing unit 25 converts the received processing request data into a form that can be stored in the event storage unit 27, and the event storage unit 27 ) (Step S59). After step S59, the central processing unit 25 controls the priority table storage unit 24 to determine whether there is a next index number (step S60), and if there is a next index number, the corresponding index number is obtained from the priority counter 23. After drawing out (step S61), the flow returns to step S53 to perform a repeating operation, and the operation ends if there is no next index number in step S60.

As described above, in the present invention, when a message for an extension terminal is to be processed in a key phone system, the message processing speed and processing efficiency are improved by setting a message processing order by specifying a message priority according to the amount of messages for each extension terminal. In this case, the message priority can be updated periodically to prevent the loss of messages.

Claims (4)

A message storage unit which stores the message to be transmitted to the extension terminal for each extension number; An interrupt generation circuit unit for generating an interrupt for data communication with the extension terminal; An extension interface unit for connecting an extension to match signals inputted and outputted to the extension; A key phone system having an event storage unit for storing processing request data transmitted from an extension terminal, A priority table storage unit for storing the extension number of the extension terminal in the message processing order; A priority counter for storing and counting index numbers corresponding to the stored extension numbers according to the message processing order; An entry counter for counting the number of entries in which a message is stored in the message storage unit and storing the number of entries for each extension number; Controls all operations performed in the key phone system, and controls message processing operations for the extension terminal, sets message priorities, and updates corresponding message priorities according to message processing programs stored in its own memory. A central processing unit that registers a predetermined time with the timer; And a timer for counting a predetermined time registered by the central processing unit and transmitting a "time out" message to the central processing unit when the predetermined time is ended. Registering a predetermined time for updating the message priority, and periodically updating and storing the message priority; And a second process of processing a message to be transmitted to an extension terminal according to the message priority stored in the first process. 3. The method of claim 2, wherein the first process comprises: a first step of reading the number of entries for an extension number if a "time out" message is authorized after a predetermined time registered for message priority update ends; A second step of updating a message priority in order from an extension number having a large number of entries after the first step, and then setting a message processing order according to the message priority; And a third step of storing the index number according to the message processing order, and then returning to the first step to perform a repetitive operation. 3. The method of claim 2, wherein the second process comprises: a first step of fetching the highest index number when an interrupt occurs; A second step of fetching an extension number corresponding to the corresponding index number after the first step, and then fetching one message corresponding to the extension number and converting the message into a transferable form; After the second step, by forming a call path with the extension terminal and transmitting the corresponding message and reducing the number of entries by '1', if the processing request data is received, the processing request data is converted into a form that can be stored and stored. Step 3; And after the third step, if there is a next index number, retrieving the corresponding index number, and then returning to the second step to perform a repetitive operation.

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