KR100582578B1 - Private exchage system and method thereof - Google Patents

Abstract

The present invention provides a wireless identification tag device for transmitting and receiving the identification information of a subscriber stored by using wireless communication, and an extension terminal for receiving and transmitting identification information for any subscriber through wireless communication with the wireless identification tag device. And a private exchange system including a private exchange claim value for receiving identification information of any subscriber through the extension terminal, identifying the current location of the subscriber, and performing a telephone exchange service according to the current location of the subscriber. Each station of the private exchange can detect the absence and movement of the subscriber who has a wireless identification tag device in the system, and provide this information to the private exchange main device to make a call to the subscriber according to the subscriber's mobile situation. If there is, the call is sent to the terminal device where the subscriber is located. By switching, it is possible to provide an automatic call forwarding function, thereby solving the hassle of setting up a call forwarding service or missed every time a subscriber moves.

Auto Answer, Private Switching Station, Station, Host, RF, Wireless Identification

Description

Private exchange system and service method thereof {PRIVATE EXCHAGE SYSTEM AND METHOD THEREOF}             

1 is a block diagram of a private exchange system according to an embodiment of the present invention.

Figure 2 is a block diagram of a private exchange main unit according to an embodiment of the present invention.

3 is an operation flowchart of a private exchange system according to an embodiment of the present invention.

The present invention relates to a private exchange system, and more particularly, to a private exchange system and a service method for recognizing the fact that the subscriber is absent and to perform the missed service or call forwarding service accordingly.

In general, the private exchange system is composed of a private exchange main unit and a plurality of extension terminals, and the extension terminals are connected to the private exchange main unit, and the private exchange claimed value accepts a trunk line to switch the communication path between the extension terminal and the trunk line. Perform.

The conventional private exchange system is made of a wired base so that the operation of each extension terminal is fixed according to the layout and the connection method of the initial installation. Therefore, the conventional private exchange operates according to the initially wired arrangement regardless of whether the actual subscriber is in place according to the installed state.

In addition, even when the subscriber is absent, the main device of the private exchange system cannot actively recognize the absence of the subscriber. Therefore, when the subscriber sets up the absence setting or the call forwarding, the subscriber does not know the absence of the subscriber and accordingly There is a limit to providing a response or call forwarding service.

Therefore, in the conventional private switching system, when the subscriber is out of the office, the absence setting button of the extension telephone terminal has to be manually operated to register the absence. Therefore, there is a problem in that it is not possible to adequately cope with an incoming call.

The present invention has been made to solve this problem in the prior art, the private exchange in the private exchange system when the subscriber is not in his place to recognize the absence of the subscriber private exchange to perform the missed service or call forwarding service according to the absence setting Its purpose is to provide a system and a service method thereof.

According to an aspect of the present invention for achieving the above object, a wireless identification tag device for transmitting and receiving the identification information of the subscriber that is stored by using a wireless communication, and to any subscriber through wireless communication with the wireless identification tag device The terminal that receives and transmits the identification information of the subscriber station, and receives the identification information of any subscriber through the extension terminal to determine the current location of the subscriber and performs the telephone exchange service according to the subscriber's current location. It provides a private exchange system that includes.

According to another aspect of the present invention, there is provided a method of receiving subscriber identification information transmitted through wireless communication from an arbitrary wireless identification tag device at each extension terminal, and receiving subscriber identification information received by each extension terminal at a private exchange main unit. The present invention provides a service method of a private switching system that receives and determines a current location of a corresponding subscriber and performs a corresponding telephone exchange service according to the current location of the subscriber.

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

1 is a block diagram of a private exchange system according to an embodiment of the present invention.

Referring to FIG. 1, a wireless identification tag device 10, which is composed of a micro IC chip, an antenna, and the like, can store various types of information and can transmit and receive data using radio frequency, and wireless communication with the wireless identification tag device 10. Possible extension terminal 20 and a private exchange main unit 30 that locates the wireless identification tag device 10 through the extension terminal 20 and performs a telephone service accordingly.

Radio frequency identification (RFID) tag device 10 generally includes a resonant antenna circuit electrically coupled to an integrated circuit (IC). The IC is essentially a programmable memory for storing digitally encoded information.

The extension terminal 20 is provided with an interrogator (transmission antenna) which performs wireless communication with the wireless identification tag device 10. An interrogator (transmission antenna) built into the extension terminal 20 generates an electromagnetic field of the resonant frequency of the RFID tag. When the wireless identification tag device 10 is located within the electromagnetic field of the interrogator, an AC voltage is induced in the resonant antenna circuit of the tag, which is supplied by the IC to supply an internal DC voltage to the IC. Rectified.

As the radio frequency identification (RFID) tag device 10 moves toward the electromagnetic field of the interrogator, the induced voltage increases. When the internal DC voltage reaches a level that can ensure the proper operation of the IC, the IC outputs the stored data. Data stored in the IC may include information on the subscriber's telephone number, employee number, name, date of birth, position, and the like.

To output this data, the IC generates a series of data pulses while switching an extra capacitor or inductor across the antenna circuit during the pulse generation time, which changes the resonant frequency of the tag, Detune the tag from the operating frequency.

That is, the wireless identification tag device 10 generates a data pulse while doubling itself, which changes the amount of energy consumed by the tag. The interrogator detects the energy consumption in the electromagnetic field and translates the amount of change into a data pulse.

2 is a block diagram of a private exchange main unit 30 according to an embodiment of the present invention.

The private exchange main apparatus 30 includes a subscriber processor 31, a central controller 32, a trunk line connecting unit 33, a memory 34, a switching unit 35, and a signal processor 36.

The subscriber processor 31 is responsible for processing various information (for example, button input, monitoring frequency change information, etc.) generated from the extension terminal 20, and the memory 34 is a telephone of each extension terminal 20. Number and subscriber information are stored.

Switching unit 35 is responsible for switching between the subscribers or the call between the CO line and the subscriber, the signal processing unit 36 is responsible for the transmission and detection of ring signals, digits, etc., the CO line connection unit 33 is a telephone station or other switch It is responsible for the interface with.

The central control unit 32 is responsible for information exchange and control between circuit units, and acquires the location information of any subscriber from the extension terminal 20, and corresponding to the location information of the subscriber when there is a call to the subscriber. Provide telephone exchange service.

As an example of the telephone exchange service, when there is a call to any subscriber, it may be able to call the corresponding extension terminal where the identification information of the subscriber is received. That is, by ringing an extension terminal 20 installed at the current location, the subscriber may receive telephone service through the extension terminal 20.

As another example of the telephone exchange service, if the identifier information of the first subscriber specified in the extension terminal is not received from any extension terminal, it is determined as the absence of the subscriber, and the telephone service according to the preset condition is determined as the absence of the subscriber. You can run In this case, when the preset condition is the execution of the missed response service, the missed response service may be performed, and when the preset condition is the execution of the call forwarding service, the extension terminal receiving the identification information of the subscriber may be called.

The operation of the private exchange system configured as described above is as follows.

3 is an operation flowchart of a private exchange system according to an embodiment of the present invention.

Each extension terminal 20 acts as a base station for radio identification and periodically checks the movement of a subscriber who is using the radio identification tag device 10 in its own frequency domain. It is determined whether there exists (S1). As a result of the determination, when any subscriber having the arbitrary RFID tag device 10 approaches the extension terminal 20, the extension terminal 20 requests subscriber information from the RFID tag device 10. Subscriber recognition process (S2).

The extension terminal 20 inquires whether the subscriber of the wireless identification tag device 10 recognized by the subscriber has the authority to change and operate the extension terminal 20 through subscriber recognition to the private exchange main unit 30. Determine whether to change or operate in the future.

Each extension terminal 20 periodically transmits data of the radio identification tag device 10 recognized around itself to the private exchange main device 30 (S3). The private exchange main device 30 analyzes the data of any wireless identification tag device 10 recognized around the corresponding extension terminal 20 through each extension terminal 20 (S4), so that any subscriber is currently random. It will be found near the extension terminal 20. The central control unit 32 of the private exchange main unit 30 stores in the database which subscriber is currently located near which terminal (S5). For example, the database may include an entry of any telephone number and the telephone number of the terminal in which the subscriber of the telephone number is currently located. Therefore, if any telephone number and the telephone number of the terminal where the subscriber of the telephone number is currently located are the same, the subscriber is near the first designated extension terminal.

On the other hand, if any phone number and the phone number of the terminal where the subscriber of the phone number is currently not the same, it means that the subscriber is near the first designated extension terminal.

Then, if there is a call to the subscriber from any subscriber, the subscriber is inquired in the database (S6, S7). As a result of the inquiry, the subscriber obtains the telephone number of the extension terminal in which the subscriber is currently located as an inquiry result, and transmits a ring signal to the corresponding extension terminal (S8).

The private exchange main device 30 receives the recognition signal of the wireless identification tag device 10 periodically received from the extension terminal 20 and updates its database every time (S9).

In addition, when the private exchange main device 30 receives the identification information of any subscriber through any extension terminal 20, inquires the permission of the subscriber in its database (S10), and the subscriber detects the current. The service grade of the extension telephone 20, which is being adjusted, is adjusted to the service grade of the subscriber (S11). In this way, all subscribers can be provided with the grade of service provided anywhere, regardless of the station.

In addition, when the subscriber with the permission to leave the seat for a certain time, the incoming call is reduced to the service level of the corresponding extension terminal according to the conditions registered in advance (S12, S13).

In addition, when the subscriber having the RFID tag device 10 moves to another place, the extension terminal 20 located at the corresponding place detects the call and the call is sent to the extension terminal at the mobile place ( 20) can be made available.

According to the present invention, it is possible for each extension terminal of a private exchange to detect the absence and movement of a subscriber having a radio frequency identification (RFID) tag in a private exchange system, and provide such information to the private exchange main unit to move the subscriber. When there is a call to the subscriber according to the situation, it is possible to provide the automatic call forwarding function by switching the call to the terminal device where the subscriber is located, so that the subscriber has to set up call forwarding service or out of office every day. Will solve the problem.

Claims (20)

A wireless identification tag device for transmitting and receiving subscriber identification information using wireless communication; An extension terminal for detecting a wireless identification tag device within its frequency range and receiving subscriber identification information stored in the wireless identification tag device; And A private exchange including a private exchange claim value for checking a current location of the corresponding subscriber and operating authority of the extension terminal using the subscriber identification information, and transmitting a ring signal to the extension terminal when there is a call to the subscriber; Exchange system. The method of claim 1, The subscriber identification information, A private exchange system comprising at least one of a subscriber's telephone number, employee number, name, date of birth, and rank. The method of claim 1, The private exchange claim value, And if the subscriber does not exist in the frequency domain of the first designated extension terminal, performs the out-of-office response service according to the subscriber's selection. The method of claim 1, The private exchange claim value, And temporarily adjusting a service grade of the extension terminal from which the subscriber identification information is received, to a service grade according to the subscriber. The method of claim 4, wherein The private exchange claim value, And if the subscriber is out of the frequency range of the extension terminal, return the service grade of the extension terminal to the first service grade. The method of claim 1, The private exchange claim value, A subscriber processor in charge of processing various types of information generated from the extension terminal; A memory for storing telephone number and subscriber identifier information of each extension terminal; And Obtaining the identification information of the subscriber from the extension terminal through the subscriber processing unit, if there is a call to the subscriber to ring the extension terminal installed where the subscriber is currently located to provide a telephone service to the subscriber Private exchange system comprising a control unit. The method of claim 6, The private exchange claim value, Switching unit for switching the call between the station subscribers or between the trunk line and the subscriber; A signal processor for transmitting and detecting a ring signal and a digit; And A private switching system further comprising a trunk line connecting unit for interfacing with a telephone station or another switch. In a call control method using a private exchange system, Detecting, by the extension terminal, the wireless identification tag device within its frequency range and receiving subscriber identification information stored in the wireless identification tag device; Claiming the private exchange is received subscriber identification information from the extension terminal, using this to determine the current location of the subscriber, and checking the operation authority for the extension terminal; And And transmitting a ring signal to the extension terminal when the subscriber has an operation right for the extension terminal and there is a call to the subscriber from an external terminal. The method of claim 8, If the subscriber does not exist in the frequency region of the first designated extension terminal, performing the missed response service according to the subscriber's selection. The method of claim 8, And adjusting, by the private exchange main apparatus, the service class of the extension terminal from which the subscriber identification information is received, to the service class according to the subscriber. delete delete delete delete delete delete delete delete delete delete

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