KR100195062B1 - Designated number interception device using electronic switch and its method - Google Patents

Abstract

The present invention relates to a designated number interception apparatus and a method thereof, wherein the apparatus of the present invention connects to a counterpart subscriber when a designated subscriber makes a call and simultaneously leaks a voice signal and subscriber information and the leaked telephone number. Consists of the control station 200 receives and receives the voice signal and subscriber information.

Due to this configuration, it is possible not only to listen to the contents of a particular subscriber's call but also to acquire the subscriber's information at the control station in a remote area from the telephone company, which has the effect of proactively designating unhealthy subscribers to prevent crime and accidents in advance. .

Description

Designated number tapping device using electronic switch

1 is a block diagram of a general interception device using an electronic exchanger.

2 is a block diagram of a designation number tapping device using an electronic switch according to the present invention.

3 is a block diagram of an electronic exchanger according to the present invention.

4 is a flowchart of a method for intercepting a designated number using an electronic switch according to the present invention.

* Explanation of symbols for main parts of the drawings

100: electronic exchanger 200: control station

10 (10 '): subscriber matching unit 20: switching unit

30: control station matching unit 40: operator matching unit

11 (11 '): Subscriber Interface 12 (12'): Signal Converter

13 (13 '): Processor 21: Switch

22 (22 '): multiplexing / demultiplexing unit 23: call mixer

24: interception signal detection unit 25: processor

31: signal conversion unit 32: control station interface

41 processor 42 storage means

43: terminal 44: printer

45 operator interface

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tapping device, and more particularly, to a tapping device for a designated number of a tap-changer which is designed to tap a particular number of subscribers in a certain area at a control station far from a telephone station using a tap-changer.

As modern society becomes more complex and science and technology develops radically, household goods related to food stocks have been developed and used in various ways. The telephone, which is one of the communication mediums among the household goods, is a terminal device of a telephone facility for making a voice call through electricity, and subscribers in the same area A or other B regions are connected to the subscribers in the area A through the telephone exchange of the telephone company. There is good communication with subscribers.

However, when using various types of telephones that are universal household goods, it is necessary to intercept in some cases, for example, the police station and the government public agency need to intercept the contents of calls of a particular subscriber who needs to be monitored by a special crime group.

However, in the conventional interception apparatus using the electronic switchboard, as shown in FIG. 1, the terminal 200 for the operator is separately provided in the telephone station 100 'in which the electronic switchboard 100 is installed, so that the operator has a specific subscriber. The number is connected so that it can be intercepted.

For example, an operator at a police station or a government public agency to intercept a particular subscriber's telephone conversation through an electronic switchgear 100 installed at a telephone company (100 ') that has a special crime group or a person in need of surveillance. Was able to intercept through the terminal 200, there was a problem that interception in the control station, such as police stations and government public agencies in the area far from the electronic switch 100.

Accordingly, the present invention has been made in order to solve the above problems, to provide a designated number tapping device using an electronic switching system to intercept the contents of the call of a particular subscriber at a control station far from a predetermined electronic switching center. have.

Designated number tapping apparatus using an electronic switch according to the present invention for achieving the above object comprises a switch for the switching function between the predetermined subscriber matching unit; A multiplexer / demultiplexer which multiplexes the signal input from the subscriber matching unit and transmits the signal to the switch, and demultiplexes the signal input from the switch and transmits the signal input to the subscriber matching unit; A call mixer for leaking only the contents of calls of designated subscribers from the switch; An interception signal transmission unit for transmitting the voice signal leaked from the call mixer to a predetermined control station matching unit; And a switching unit including a processor for accessing the signal input to the multiplexing / demultiplexing unit to control the call mixer to leak the corresponding voice signal if a predetermined subscriber is provided, and transmitting predetermined subscriber information to a predetermined operator matching unit. Characterized in that the configuration.

At this time, the control station matching unit signal conversion unit for converting the voice signal input from the switching unit 20 into an analog signal by inverse PCM; And a control station interface for receiving an analog voice signal from the signal converting unit and transmitting the analog voice signal to the control station.

The operator matching unit may include a processor configured to receive and analyze the subscriber information from the switching unit; Storage means for storing the subscriber information; A terminal for displaying the stored subscriber information by the processor; A printer for printing the stored subscriber information by the processor; And an operator interface for transmitting the stored subscriber information to the control center by the processor.

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

2 is a block diagram of a designated number interception apparatus using an electronic switch according to the present invention, the apparatus of the present invention, when a designated subscriber makes a call, connects to the other subscriber and simultaneously leaks the voice signal and subscriber information. Far from the electronic switch 100 and the electronic switch 100, it consists of a control station 200 for receiving and monitoring the leaked voice signal and subscriber information.

3 is a block diagram of an electronic switch according to the present invention, wherein the electronic switch 100 is connected to a subscriber, and converts the signal into a PCM / reverse PCM, and determines that the subscriber is a designated subscriber when a call is generated from the subscriber. Switching that receives a signal from the matching unit 10 and the subscriber matching unit 10, switches to form a call line for transmitting to the corresponding subscriber matching unit 10 ', and also leaks a voice signal and subscriber information of a designated subscriber. Part 20; Control station matching unit 30 for receiving a voice signal from the switching unit 20 to transmit to the control station 200; And an operator matching unit 40 receiving subscriber information from the switching unit 20 and transmitting the subscriber information to the control station 200.

Here, the subscriber matching unit 10 is connected to the subscriber interface 11 for transmitting and receiving analog signals, and the signal input from the sub-particle interface 11 to PCM / reverse PCM to the switching unit 20 And a processor 13 for determining whether the subscriber is a designated subscriber.

Here, the switching unit 20, the switch 21 for receiving a signal for switching; Multiplexing / multiplexing the signal input from the subscriber matching unit 10 to the switch 21 and demultiplexing the signal input from the switch 21 to the corresponding subscriber station matching unit 10 ' Demultiplexer 22; A call mixer 23 for leaking only the contents of calls of designated subscribers from the switch 21; An interception signal transmission unit 24 for transmitting the voice signal leaked from the call mixer 23 to the control center matching unit 30; And accessing the signal input to the multiplexing / demultiplexing unit 21 to control the call mixer 23 to leak the corresponding voice signal if the subscriber is a designated subscriber. The processor 25 is configured to transmit a call start time and the like to the operator matching unit 40.

Here, the control station matching unit 30, the signal conversion unit 31 for converting the analog signal by inverse PCM conversion of the audio signal input from the switching unit 20; Control station interface 32 for receiving an analog voice signal from the signal conversion unit 31 to transmit to the control station 200.

Here, the operator matching unit 40, the processor 41 for receiving and analyzing the subscriber information from the switching unit 20; Storage means (42) for storing the subscriber information; A terminal 43 for displaying the stored subscriber information by the processor 41; A printer (44) for printing the stored subscriber information by the processor (41); It consists of an operator interface 45 for transmitting the stored subscriber information to the control station 200 by the processor 41.

Designated number interception method using the electronic switch of the present invention configured as described above, the first step (SI) the subscriber attempts to call; A second step (S2) of determining whether the subscriber is a designated subscriber; A third step (S3) of branching to a first step (S1) if the designated subscriber is not determined as a result of the determination in the second step (S2), and analyzing the counterpart subscriber number if the designated subscriber; A fourth step (S4) of connecting with the other subscriber according to the analysis result; A fifth step (S5) of determining whether the other subscriber is busy; As a result of the determination in the fifth step (S5), if the call is busy, the process branches to the first step (S1), and if not, the sixth step of transmitting subscriber information and information such as the subscriber's telephone number and call start time to the control center. (S6), the seventh step (S7) for transmitting the call content to the control station; And an eighth step S8 of branching to the first step S1 after transmitting the call end time information to the control station when the call is terminated.

Next, the operation and effect of the present invention configured as described above will be described in detail.

As shown in FIG. 2, the voice transmission line from the remote control station 200 is used, using the electronic switch 100 of the telephone station 100 'to which the special crime group and the specific persons who need monitoring are subscribed. Not only can the specific subscriber call contents be intercepted through the 300, but also information such as subscriber information, the phone number of the counterpart subscriber, a call start time, and the like can be taken through the information transmission line 400.

Thus, one control station 200 is connected to several telephone stations (100 ', 100 " ...) in a pre-set area so that all of the designated subscribers in that area can be intercepted.

As shown in FIG. 3, when a predetermined subscriber A attempts to make a call, it is hooked off so that the subscriber interface 11 detects it and causes the processor 13 in the subscriber matching unit 10 to analyze the subscriber information. In this case, the processor 13 determines whether the designated subscriber is the designated subscriber and stores the subscriber information.

Subsequently, the processor 13 stores the telephone number, and when subscriber A finishes dialing, the processor 13 transmits the subscriber's telephone number and the subscriber's telephone number B together to the switching unit 20.

Accordingly, the switch 21 receives the subscriber's telephone number and the other subscriber's telephone number to form a call line.

That is, it is connected to the subscriber matching unit 10 'through the switch 21 of the switching unit 20.

At this time, if the other party (B) is busy, the call is completed, and if not, the designated subscriber (A) starts a call with the other party (B).

Accordingly, the voice signal of the designated subscriber A is transmitted to the multiplexer / demultiplexer 22 by PCM modulation in the signal converter 12 through the subscriber interface 11.

The voice signal of the subscriber A transmitted to the multiplexer / demultiplexer 22 is transmitted to the switch 21 after the multiplexing process, and is transmitted to the corresponding multiplexer / demultiplexer 22 'through the formed call line. Transmitted and demultiplexed.

The voice signal of the subscriber A, which has undergone the demultiplexing process, is transmitted to the corresponding subscriber matching unit 10 ', converted into an analog voice signal by inverse PCM through the signal conversion unit 12', and then converted into an analog voice signal. 11 ') to the other party (B).

Similarly, the voice signal of the other party subscriber B is PCM modulated by the signal converter 12 'via the subscriber interface 11' and transmitted to the multiplexer / demultiplexer 22 '.

The voice signal of the subscriber B transmitted to the multiplexer / demultiplexer 22 'is transmitted to the switch 21 after the multiplexing process, and is transmitted to the corresponding multiplexer / demultiplexer 22 through the formed call line. Transmitted and demultiplexed.

The voice signal of the subscriber B, which has undergone the demultiplexing process, is transmitted to the corresponding subscriber matching unit 10, converted into an analog voice signal by inverse PCM through the signal conversion unit 12, and then converted into an analog voice signal. It is sent to the designated subscriber A through.

In this case, the processor 23 analyzes whether the subscriber A is a general subscriber or a subscriber to be intercepted, and if the subscriber is an audience to be listened, automatically connects the call line to the call mixer 23 through the switch 21. Drain out.

The leaked voice signal is input to the signal conversion unit 31 of the control station matching unit 30 through the interception signal transmission 24 and converted into an analog signal by inverse PCM.

The analog voice signal is input to the control station interface 32 and transmitted to the remote control station 200 through the voice signal transmission line 300, and the operator of the control station 200 receiving the voice signal is intercepted. .

On the other hand, the processor 25 of the switching unit 20 generates the subscriber's information, that is, the rating of the designated subscriber, the subscriber's subscriber's telephone number, the call start time, etc., and transmits it to the processor 41 of the operator matching unit 40. The data may be stored in the storage means 42 and monitored through the terminal 43 or output through the printer 44.

In addition, the processor 41 transmits the received subscriber information to the control station 200 through the operator interface 45 to the subscriber information transmission line 400.

Here, the voice signal transmission line 300 and subscriber information transmission line 400 are optical cable lines.

Therefore, as shown in FIG. 2, the voice transmission line is remotely located at the control station 200, using the electronic switch 100 of the telephone station 100 'to which a special crime group and a specific person requiring monitoring are subscribed. Not only can the specific subscriber call contents be intercepted through the 300, but also information such as subscriber information, the phone number of the counterpart subscriber, and a call start time can be taken through the information delivery line 400.

It is also possible to expand the jurisdiction of the control station to manage all subscribers in the country.

As described above, the present invention can be installed in a control station in a remote area from the telephone station to not only listen to the contents of the call of the specific subscribers subscribed to the telephone station, but also to take subscriber information, thereby unhealthy subscribers The effect is that crime and accidents can be prevented in advance by designating in advance.

Claims (3)

Interface with a predetermined subscriber, and when a call is generated from the subscriber, the subscriber matching unit 10 and the subscriber matching unit 10 for determining whether the designated subscriber is input and switched to transmit to the subscriber matching unit 10 '. Forming a call line, at the same time, the switching unit 20 for leaking the voice signal and subscriber information of the specified subscriber, the control station matching to receive the voice signal from the switching unit 20 and transmits to a predetermined control station 200 in the remote In the designated number listening device using the electronic switchboard consisting of a unit 30, and the operator matching unit 40 receives the subscriber information from the switching unit 20 and transmits it to the control station 200, the switching unit 20, a switch 21 for the switching function between the subscriber matching unit 10; Multiplexing / multiplexing the signal input from the subscriber matching unit 10 to the switch 21 and demultiplexing the signal input from the switch 21 to the corresponding subscriber station matching unit 10 ' Demultiplexer 22; A call mixer 23 for leaking only the contents of calls of designated subscribers from the switch 21; An interception signal transmission unit 24 for transmitting the voice signal leaked from the call mixer 23 to the control center matching unit 30; And accessing the signal input to the multiplexer / demultiplexer 21 to control the call mixer 23 to leak the corresponding voice signal if a designated subscriber is transmitted, and transmit predetermined subscriber information to the operator matching unit 40. Designated number tapping device using an electronic switch, characterized in that it comprises a processor (25). The control station matching unit (30) of claim 1, further comprising: a signal converter (31) for converting an analog signal by inverse PCM of the audio signal input from the switching unit (20); And a control station interface (32) for receiving an analog voice signal from the signal conversion unit (31) and transmitting it to the control station (200). According to claim 1, The operator matching unit 40, Processor 41 for receiving and analyzing the subscriber information from the switching unit 20; Storage means (42) for storing the subscriber information; A terminal (43) for displaying the stored subscriber information by the processor (41); A printer (44) for printing the stored subscriber information by the processor (41); And an operator interface (45) for transmitting the stored subscriber information to the control station (200) by the processor (41).