KR101365705B1 - Repeater control system by using smartphone - Google Patents

Abstract

A repeater control system according to the present invention comprises: a repeater for detecting signal levels of mobile terminals and controlling an output level of a backward signal thereof according to the detected levels; and the mobile terminal accessing the repeater, controlling the operation of components and inquiring about their operational states. A repeater control system according to the present invention limits an output level of a backward signal transmitter side signal when high powered signals are excessively received from the mobile terminal, thereby preventing the malfunction of the repeater and stably operating the repeater. Usually, the signal levels periodically received from the mobile terminals are detected, and in the case that the detected level of the signals are low and not sensed, the outputs of a forward and a backward terminating amplifier are set lower than a reference value, thereby saving power; and by keeping down the temperature within a repeater box, malfunction of thermally sensitive elements can be reduced and a prolonged life expectancy of the repeater can be expected. Additionally, the present invention develops a smartphone application for controlling and monitoring the repeater via a graphic user interface (GUI), thereby implementing the repeater control system for controlling the repeater, which is easy to carry and more convenient. [Reference numerals] (220) Bluetooth modem; (240) Control unit; (260) Signal processing end; (370,470) Terminating AMP; (AA) Backward; (BB) Controller; (CC) Forward

Description

Repeater control system using smartphone {REPEATER CONTROL SYSTEM BY USING SMARTPHONE}

The present invention relates to a repeater control system, and more particularly, to a repeater control system for controlling the output level of the reverse and forward of the repeater using a smart phone.

In communication networks, repeaters are generally devices that receive, amplify, and retransmit signals on an electromagnetic or optical transmission medium to the next section of the medium. Repeaters overcome signal attenuation due to electromagnetic field spread or cable loss, so it is possible to extend the signal to a large distance using several repeaters.

Repeaters are also used to connect segments within a local area network and to amplify and extend wired and wireless wide area network transmissions.

The repeater may receive a signal from a base station or a server that transmits a signal and transmit the signal to another base station or a subscriber terminal that is far from the base station. However, the apparatus may be deteriorated through unexpected cases.

That is, the repeater may be degraded when the operator cannot produce the desired output due to the influence of the repeater module, the peripheral device or the environment.If the deterioration is not taken quickly, the repeater may malfunction due to the base station or the server. Even though the signal is transmitted from the receiver, since the receiver does not receive the signal, stable operation of the repeater is difficult. In addition, a lot of power may be wasted due to such deterioration at the repeater stage.

An object of the present invention is to provide a repeater control system for limiting the output level of a reverse terminal amplifier (AMP) by adding an automatic level control (ALC) device to a reverse signal transmission terminal.

Another object of the present invention is to provide a repeater control system for measuring the signal level of the mobile terminal periodically and controlling the output of the termination amplifier (AMP) in the reverse and forward directions by using the automatic level control (ALC) device.

Still another object of the present invention is to provide a repeater control system for controlling and monitoring a repeater through a GUI (Graphic User Interface) of a smartphone screen.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the present invention will be realized and attained by the structure particularly pointed out in the claims, as well as the following description and the annexed drawings.

In the repeater control system according to the present invention, when a high output signal is excessively input from the mobile terminal 100 side, by limiting the output level of the reverse signal transmitter 264 side signal, it prevents the repeater malfunction and stable operation It was made possible.

In addition, when the signal level received from the mobile terminals is detected periodically and the detected signal level is not detected, the power saving effect can be expected by setting the forward and reverse termination amplifier (AMP) outputs below the reference value. In addition, by maintaining a low temperature inside the housing of the repeater 200, it is possible to reduce the malfunction of the heat-sensitive elements and to extend the life of the repeater 200.

In addition, the present invention, by developing a smart phone application (control) to control and monitor the repeater through a GUI (Graphic User Interface), to implement a repeater control system for controlling the repeater more convenient and convenient.

1 is an exemplary view showing a smartphone and a repeater of the present invention.
2 is a diagram illustrating signal processing and operation of a mobile terminal for repeater control.
Figure 3 is an illustration of the Jiyu (GUI) displayed on the mobile terminal according to the present invention.
4 is a block diagram of a repeater according to a first embodiment of the present invention;
5 is a block diagram of a repeater according to a second embodiment of the present invention;
6 is a block diagram of a mobile terminal according to the present invention;

In order to achieve the above object, the repeater control system according to the present invention,

A repeater for detecting the signal level of the mobile terminals and controlling the output level of the repeater reverse signal according to the detected level, and a mobile terminal connected to the repeater to control the operation of the constituent devices and to query the operation status. .

Preferably, the mobile terminal, through the graphical user interface (GUI) implemented on the terminal screen, query the RF signal output information, power supply status information, enclosure information, received signal level (RSSI, Received Signal Strength Indication) information And, according to the administrator's input, the automatic gain control (AGC) device or automatic level control (ALC) device of the repeater on / off, and set various parameter values, threshold temperature input, forward and reverse signal gain adjustment It is characterized by.

Preferably, the repeater, a Bluetooth modem for communicating with the mobile terminal, and connected to the mobile terminal via the Bluetooth modem, provides the operation information of the devices constituting the signal processing terminal to the mobile terminal and instructs the mobile terminal. And a control unit for controlling the signal processing terminal according to the control unit, and detecting the output level of the signal of the mobile terminal under the control of the control unit, and controlling the output level of the repeater reverse signal according to the detected output level. If it is lower than the reference value, it characterized in that it comprises a signal processing stage for setting the forward and reverse termination amplifier output lowered to a predetermined level or less.

The signal processing terminal includes a reverse signal transmitting and receiving unit having an automatic level controller and controlling the output level of the repeater reverse signal according to the output level of the signal of the mobile terminal detected by the automatic level controller 300, and the detected mobile terminal. And a forward signal transceiver for controlling the output of the termination amplifier according to the output level of the side signal.

Preferably, the reverse signal transmitter is a first filter for removing an out-of-band frequency from a signal collected by an antenna and a low noise amplifier, and minimizes the noise figure included in the output signal of the first filter. A first amplifier for performing a predetermined level of amplification, a first attenuator for adjusting the gain of the output signal of the first amplifier and performing temperature compensation, and a second amplifier for amplifying the output signal of the first attenuator to a predetermined level And a second filter for removing out-of-band components included in the amplified signal of the second amplifier, a terminating amplifier, a third amplifier for high output amplifying the output signal of the second filter for RF transmission, A third filter for removing and outputting out-of-band components from the output signal of the third amplifier and adjusting the gain of the signal input to the third amplifier according to the output level of the output signal of the first amplifier. Is characterized in that it comprises an automatic level controller.

Preferably, the automatic level controller detects an output level of the output signal of the first amplifier and outputs a voltage value according thereto, and a gain of the output signal of the second filter according to the voltage value of the power detection element. It characterized in that it comprises a second attenuator provided to the third amplifier by adjusting the.

Preferably, the automatic level controller comprises: a power detecting element for detecting an output signal level of the first amplifier and outputting a voltage value according thereto;

A second attenuator provided to the third amplifier by adjusting the gain of the output signal of the second filter according to the voltage value of the power detection element, and obtaining a gain of the output signal of the second filter according to the voltage value of the power detection element. The second attenuator provided to the third amplifier by adjusting and comparing the voltage value of the power detection device with a reference value, and if the value is lower than the reference value, the gain of the second attenuator is increased to increase the output signal level of the third amplifier, If higher, it comprises a controller for lowering the gain of the second attenuator to lower the output signal level of the third amplifier.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

1 is an exemplary view showing a smartphone and a repeater of the present invention.

As shown in FIG. 1, the repeater control system according to the present invention includes a repeater 200 for detecting signal levels received from mobile terminals and controlling output levels of repeater reverse signals according to the detected levels. It is configured to include a mobile terminal 100 for controlling the operation of the devices constituting the repeater 200 by accessing the (200) and query the operation status.

The repeater 200 outputs the reverse signal transmitter 264 under the control of the automatic level controller 300 to protect the internal amplifying elements when a high output signal is excessively input from the mobile terminal 100 side. To limit. Transistors constituting the amplifying elements inside the repeater are damaged when excessive input of a high output signal from the outside occurs continuously, and accumulation of such damage eventually shortens the life of the transistor. The present invention protects the repeater from excessive input of a high output signal from the outside and ensures stable operation, thereby ensuring a low MTBF.

The automatic level controller 300 according to the present invention senses an input level while minimizing a noise figure (NF), and has a circuit configuration to limit the output of the amplifier to operate below a set range.

The automatic level controller 300 according to the present invention includes a configuration consisting of a pin diode and an attenuator (first embodiment) and a configuration consisting of a pin diode, an attenuator and a controller (second embodiment). It can be designed to have.

First, the automatic level controller 300 consisting of only a pin diode and an attenuator detects the power level of the signal received from the mobile terminals and outputs the output of the reverse signal transmitter 264 according to the detected output level. Restrict.

When excessive input of a high output signal from outside occurs continuously, the transistors constituting the amplifying elements of the reverse signal transmitter 264 are damaged, and the accumulation of such damage may eventually cause the repeater to malfunction. When the high output signal is excessively input from the mobile terminal 100 to protect the repeater and enable stable operation, the output of the reverse signal transmitter 264 is limited.

Second, the automatic level controller 300 composed of a pin diode, an attenuator, and a controller normally detects a signal level received from mobile terminals periodically, and when the detected signal level is not detected because of a low level, the forward and reverse directions are detected. Set the terminating amplifier (AMP) output lower than the standard value. Normally, power savings can be expected by setting the forward and reverse termination amplifier (AMP) outputs below the reference value, and by reducing the temperature inside the repeater 200 enclosure to reduce the malfunction of heat-sensitive devices, the repeater 200 It can extend the life.

2 illustrates signal processing and operation of a mobile terminal for repeater control.

The repeater control system according to the present invention is a short-range wireless communication (for example, Bluetooth, etc.), so that the interconnection and signal transmission between the mobile terminal 100 and the repeater 200 is made.

The wireless communication unit 110 of the mobile terminal 100 according to the present invention allows one to perform wireless communication between the mobile terminal 100 and the wireless communication system or wireless communication between the mobile terminal 100 and the network where the mobile terminal 100 is located. It may include the above components. For example, the wireless communication unit 110 may transmit at least one of the broadcast reception module 111, the mobile communication module 112, the wireless Internet module 113, the short distance communication module 114, and the location information module 115 .

The short range communication module 114 is a communication module that communicates with the repeater 200 and includes a Bluetooth module. Near field communication technologies applicable to the near field communication module 114 include radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), and ZigBee.

Through Bluetooth communication, the mobile terminal 100, as shown in Figure 3, RF signal output information of the repeater 200 through the GUI (GUI, Graphic User Interface) implemented on the terminal screen, power supply state Information, enclosure information, received signal level (RSSI, Received Signal Strength Indication) information is inquired. Then, according to the input of the administrator, the automatic gain control (AGC) device or automatic level control (ALC) device in the repeater 200 is turned on and off, and various parameter values are set, the threshold temperature input, the gain control of the forward and reverse signals are adjusted. Do this. Figure 3 is an illustration of a Jiui (GUI) displayed on a mobile terminal according to the present invention.

The repeater 200 also includes a Bluetooth modem 220 to be connected to the mobile terminal 100 and to monitor the operation and status of the mobile terminal 100.

The repeater 200 according to the present invention includes a Bluetooth modem 220, a controller 240, and a signal processor 260.

The Bluetooth modem 220 communicates with the mobile terminal 100 to provide an operation and a state of the repeater 200 to the mobile terminal 100.

The controller 240 is connected to the mobile terminal 100 through the Bluetooth modem 220 to provide operation information of devices constituting the signal processing terminal 260 to the mobile terminal 100 and the mobile terminal 100. The signal processing stage 260 is controlled in accordance with the instruction of.

The signal processing unit 260 detects the signal level of the mobile terminals under the control of the controller 240 and controls the level of the repeater reverse signal output according to the detected level, and the signal level of the mobile terminal 100 is a reference value. If it is lower, the forward and reverse termination amplifier outputs are set lower than a predetermined level.

4 is a block diagram of a repeater according to a first embodiment of the present invention.

As shown in FIG. 4, the repeater 200 according to the first embodiment of the present invention includes a Bluetooth modem 220, a controller 240, and a signal processor 260.

The signal processing stage 260 according to the present example detects the signal level of the mobile terminals detected by the repeater 200 and limits the level of the repeater reverse signal output according to the detected level.

When the signal processing stage 260 according to the present example is excessively input a high output signal from the mobile terminal 100 to protect the repeater 200 and to enable stable operation of the repeater 200, the second filter The gain of the output signal of 450 is adjusted to limit the output of the termination amplifier 370.

The signal processing stage 260 according to the present example is a reverse signal transmitter, and includes a first filter 310, a first amplifier 320, a first attenuator 330, a second amplifier 340, and a second filter 350. , A third amplifier 370, a third filter 380, and an automatic level controller 300.

The first filter 310 removes the out-of-band frequency from the signal collected by the antenna.

The first amplifier 320 is a low noise amplifier, and performs the necessary amplification while minimizing the noise figure (NF) included in the output signal of the first filter 310.

The first attenuator 330 performs fine gain adjustment and temperature compensation to adjust the gain of the output signal of the first amplifier 320.

The second amplifier 340 amplifies the output signal of the first attenuator 330 to a predetermined level.

The second filter 350 removes out-of-band components included in the amplified signal of the second amplifier 340.

The third amplifier 370 is a termination amplifier and amplifies the output signal of the second filter 350 to output RF.

The third filter 380 removes and outputs an out-of-band component from an output signal of the third amplifier 370.

The automatic level controller 300 detects a power level of an output signal of the first amplifier 320 and gains a signal input to the third amplifier 370 according to the detected output level. Adjust The automatic level controller 300 according to the present embodiment includes a power detection element and a second attenuator 360.

The power detection element detects an output level of an output signal of the first amplifier 320 and outputs a voltage value according thereto. In addition, the second attenuator 360 adjusts the gain of the output signal of the second filter 350 according to the voltage value of the power detection element and provides it to the third amplifier 370. Since the power detection element must sense the instantaneous input level instantaneously to limit the output level, it is preferable to employ a pin diode having a good response speed.

5 is a block diagram of a repeater according to a second embodiment of the present invention.

As shown in FIG. 5, the repeater 200 according to the second embodiment of the present invention includes a Bluetooth modem 220, a controller 240, and a reverse signal transmitter 264 and a forward signal transmitter 268. It is configured to include a processing stage 260.

The signal processing stage 260 according to the present example detects the output level of the mobile terminal signal detected by the repeater 200, and outputs the repeater reverse and forward output signals according to the detected output level. Limit the level.

For example, when the output level of the signal of the mobile terminal is lower than the reference value, the output of the termination amplifier signals 370 and 470 in the forward and reverse directions is lowered below a predetermined level. When the signal level of the mobile terminal is not detected normally, setting the output of the forward and reverse termination amplifier (AMP) below the reference value can reduce the power of the repeater and reduce the heat generated by the repeater enclosure. It can increase the lifespan.

The reverse signal transmitter 264 of the signal processing stage 260 according to the present example may include a first filter 310, a first amplifier 320, a first attenuator 330, a second amplifier 340, and a second filter. 350, a third amplifier 370, a third filter 380, and an automatic level controller 300.

The first filter 310 removes the out-of-band frequency from the signal collected by the antenna.

The first amplifier 320 is a low noise amplifier, and performs the necessary amplification while minimizing the noise figure (NF) included in the output signal of the first filter 310.

The first attenuator 330 performs fine gain adjustment and temperature compensation to adjust the gain of the output signal of the first amplifier 320.

The second amplifier 340 amplifies the output signal of the first attenuator 330 to a predetermined level.

The second filter 350 removes out-of-band components included in the amplified signal of the second amplifier 340.

The third amplifier 370 is a termination amplifier and amplifies the output signal of the second filter 350 to output RF.

The third filter 380 removes and outputs an out-of-band component from an output signal of the third amplifier 370.

The automatic level controller 300 detects an output level of the output signal of the first amplifier 320 and according to the detected output level, the third amplifier 370 and the forward signal transmitter 268. The gain of the signal input to the third amplifier 470 of the) is adjusted. The automatic level controller 300 according to the present embodiment includes a power detecting element, a controller, and two attenuators (hereinafter, referred to as second attenuators 360 and 460).

The power detection element detects an output level of an output signal of the first amplifier 320 and outputs a voltage value according thereto. In addition, the second attenuator 360 adjusts the gain of the output signal of the second filter 350 according to the voltage value of the power detection element and provides it to the third amplifier 370. On the other hand, the second attenuator 460 adjusts the gain of the output signal of the second filter 450 according to the voltage value of the power detection element and provides it to the third amplifier 470. Since the power detection device should limit the output level by sensing the instantaneous input level instantaneously, as in the first embodiment, it is preferable to employ a pin diode having a good response speed.

The controller compares the voltage value of the power detection element with a reference value and, when lower than the reference value, increases the gain of the second attenuators 360 and 460 to increase the output signal level of the third amplifiers 370 and 470, and the reference value. If higher, the gain of the second attenuators 360 and 460 is lowered to lower the output signal level of the third amplifiers 370 and 470.

When the controller is not detected because the signal level of the mobile terminal is low, the controller sets the output of the forward and reverse termination amplifiers to be lower than the reference value, thereby saving power of the repeater and lowering heat generation inside the enclosure. Increase repeater life.

The forward signal transmitter 268 of the signal processing stage 260 according to the present example may include a first filter 410, a first amplifier 420, a first attenuator 430, a second amplifier 440, and a second filter ( 450), a third amplifier 470, and a third filter 480.

The first filter 410 removes the out-of-band frequency from the signal collected by the antenna.

The first amplifier 420 is a low noise amplifier and performs necessary amplification while minimizing a noise figure NF included in an output signal of the first filter 410.

The first attenuator 430 adjusts the gain of the output signal of the first amplifier 420 as a device for performing fine gain control and temperature compensation.

The second amplifier 440 amplifies the output signal of the first attenuator 430 to a predetermined level.

The second filter 450 removes out-of-band components included in the amplified signal of the second amplifier 440.

The third amplifier 470 is a termination amplifier and amplifies the output signal of the second filter 450 which has undergone a predetermined gain control for RF transmission.

The third filter 480 removes and outputs out-of-band components from the output signal of the third amplifier 470.

6 is a block diagram of a mobile terminal according to the present invention.

The mobile terminal 200 according to the present invention may be a mobile phone having a Bluetooth communication module, a smart phone, a tablet computer, a personal digital assistant (PDA) and the like. In the following description, it is assumed that the mobile terminal 200 is a smart phone.

Referring to Figure 6, looking at the mobile terminal of the present invention from a functional point of view as follows.

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 180, a power supply 190, and the like.

The wireless communication unit 110 may include one or more components for wireless communication between the mobile terminal 100 and the wireless communication system or wireless communication between the mobile terminal 100 and a network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may transmit at least one of the broadcast reception module 111, the mobile communication module 112, the wireless Internet module 113, the short distance communication module 114, and the location information module 115 .

The short range communication module 114 is a communication module that communicates with the repeater 200 and includes a Bluetooth module (not shown). Near field communication technologies applicable to the near field communication module 114 include radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), and ZigBee. In addition, a serial communication port may be provided for wired communication with a computer device (not shown) such as the notebook.

The sensing unit 140 determines the current state of the mobile terminal 100 such as the open / closed state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, the acceleration / deceleration of the mobile terminal, and the like. Sensing and generating a sensing signal for controlling the operation of the mobile terminal 100. For example, if the mobile terminal 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. Also, it is responsible for a sensing function related to whether or not the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like.

In addition, when the mobile terminal 100 is connected to an external cradle, the interface unit 170 may be a passage for supplying power from the cradle to the mobile terminal 100, or may be input by the user from the cradle. The command signal may be a passage through which the mobile terminal 100 is transmitted. Various command signals or power input from the cradle may be operated as signals for recognizing that the mobile terminal 100 is correctly mounted on the cradle.

The output unit 150 generates an output related to a visual, auditory or tactile sense. The output unit 150 may include a display unit 151, an audio output module 152, and an alarm unit 153.

The display unit 151 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal 100 is in the call mode, the mobile terminal 100 displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the mobile terminal 100 is in a video call mode or a photographing mode, the mobile terminal 100 displays a photographed and / or received image, a UI, or a GUI.

The display unit 151 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a three-dimensional display 3D display).

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, a plurality of display units may be spaced apart or integrally disposed on one surface of the mobile terminal 100, or may be disposed on different surfaces.

The display unit 151 may include a display unit 151 and a touch sensor 160. The display unit 151 may be a touch screen, It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The sound output module 152 outputs audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, and a broadcast reception mode. In addition, the sound output module 152 outputs a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed by the mobile terminal 100. The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying occurrence of an event of the repeater 200. Examples of the event may include re-entry of various parameter values or a request for setting when an abnormality occurs in the power supply or the enclosure in the repeater 200.

The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than an audio signal or a video signal, for example, by vibration. The video signal or the audio signal may also be output through the display unit 151 or the audio output module 252, so that they 151 and 152 may be classified as part of the alarm unit 153.

The memory 160 may store a program for processing and control of the controller 180 and may have a function for temporarily storing input / output data (e.g., a phone book, a message, a still image, . ≪ / RTI >

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), RAM Random Access Memory (RAM) Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM) magnetic memory, It may include at least one type of storage medium of the optical disk. In addition, the mobile terminal 100 may operate a web storage that performs a storage function of the memory 160 on the Internet.

The operation of the present invention described herein can be implemented in a computer-readable recording medium using software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and the like. It may be implemented using at least one of a processor, controllers, micro-controllers, microprocessors, and electrical units for performing the functions. Examples of operations may be implemented by the controller (or the controller 140) itself.

According to a software implementation, embodiments such as the procedures and functions described herein may be implemented with separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code may be stored in a storage (not shown) and executed by the controller (or the controller 140).

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. May be constructed by selectively or in combination. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

In the repeater control system according to the present invention, when the high output signal is excessively input from the mobile terminal 100 side, by limiting the output level of the reverse signal transmitter 264 side signal, it prevents the malfunction of the repeater and stable operation This made it possible.

In addition, when the signal level received from the mobile terminals is detected periodically and the detected signal level is not detected, the power saving effect can be expected by setting the forward and reverse termination amplifier (AMP) outputs below the reference value. In addition, by maintaining a low temperature inside the housing of the repeater 200, it is possible to reduce the malfunction of the heat-sensitive elements and to extend the life of the repeater 200.

In addition, the present invention, by developing a smart phone application (control) to control and monitor the repeater through a GUI (Graphic User Interface), to implement a repeater control system for controlling the repeater more convenient and convenient.

100: mobile terminal 200: repeater
220: Bluetooth modem 240: controller
260: signal processing stage 264: reverse signal transmission unit
268: forward signal transmitter 300: automatic level controller
310, 410: first filter 320, 420: first amplifier
330, 430: first attenuator 340, 440: second amplifier
350, 450: second filter 360, 460: second attenuator
370, 470: third amplifier 380, 480: third filter

Claims (10)

A repeater 200 for detecting signal levels of mobile terminals and controlling output levels of repeater reverse signals according to the detected levels;
It is configured to include a mobile terminal 100 to access the repeater, to control the operation of the components and to query the operating status,
The repeater 200,
A Bluetooth modem 220 for communicating with the mobile terminal 100;
The control unit 240 is connected to the mobile terminal through the Bluetooth modem to provide operation information of the devices constituting the signal processing terminal 260 to the mobile terminal and to control the signal processing terminal 260 according to the instruction of the mobile terminal. Wow;
Under the control of the control unit 240 detects the output level of the signal of the mobile terminal and controls the output level of the repeater reverse signal according to the detected output level, if the output level of the signal of the mobile terminal is lower than the reference value, forward and reverse And a signal processing stage 260 for setting the termination amplifier output lower than a predetermined level.
The signal processing stage 260 is
A reverse signal transmitting / receiving unit (264) having an automatic level controller (300) and controlling the output level of the repeater reverse signal according to the output level of the mobile terminal signal detected by the automatic level controller (300);
And a forward signal transceiver 268 that controls the output of the terminating amplifier 470 according to the detected output level of the mobile terminal signal.
The reverse signal transmitter 264 is
A first filter 310 for removing an out-of-band frequency from the signal collected by the antenna;
A low noise amplifier, comprising: a first amplifier 320 for performing a predetermined level of amplification while minimizing a noise figure included in an output signal of the first filter 310;
A first attenuator (330) for adjusting the gain of the output signal of the first amplifier (320) and performing temperature compensation;
A second amplifier 340 for amplifying the output signal of the first attenuator 330 to a predetermined level;
A second filter 350 to remove out-of-band components included in the amplified signal of the second amplifier 340;
A termination amplifier, comprising: a third amplifier 370 for high output amplifying the output signal of the second filter 350 for RF transmission;
A third filter 380 for removing and outputting out-of-band components from the output signal of the third amplifier 370;
It is configured to include an automatic level controller 300 for adjusting the gain of the signal input to the third amplifier 370 according to the output level of the output signal of the first amplifier 320,
The automatic level controller 300
A power detector for detecting an output level of the output signal of the first amplifier 320 and outputting a voltage value according thereto;
Repeater control system, characterized in that it comprises a second attenuator 360 to adjust the gain of the output signal of the second filter 350 according to the voltage value of the power detection element to provide to the third amplifier 370 . The method of claim 1, wherein the repeater 200,
When the signal level of the mobile terminal is not detected normally, the repeater control system characterized in that the forward and reverse termination amplifier (AMP) output is set lower than the reference value. According to claim 1, The mobile terminal 100,
Inquiry RF signal output information, power supply status information, enclosure information, received signal level (RSSI, Received Signal Strength Indication) information of the repeater 200 through the GUI (Graphic User Interface) implemented on the terminal screen,
According to the administrator's input, the automatic gain control (AGC) device or automatic level control (ALC) device of the repeater 200 is turned on and off, and various parameter values are set, threshold temperature input, and forward and reverse signal gain adjustment are performed. Repeater control system, characterized in that. delete delete delete delete The method of claim 1, wherein the automatic level controller 300
A power detector for detecting an output signal level of the first amplifier and outputting a voltage value according to the output signal;
A second attenuator (360) for adjusting the gain of the output signal of the second filter (350) according to the voltage value of the power detection element and providing it to the third amplifier (370);
A second attenuator (460) for adjusting the gain of the output signal of the second filter (450) to the third amplifier (470) according to the voltage value of the power detection element;
When the voltage value of the power detection device is lower than the reference value, the output signal level of the third amplifiers 370 and 470 is increased by increasing the gain of the second attenuators 360 and 460 when the voltage value is lower than the reference value. And a controller which lowers the gain of the second attenuators (360, 460) to lower the output signal level of the third amplifier (370, 470). The method of claim 1, wherein the power detection device
Repeater control system, characterized in that the pin diode (PIN Diode). The method of claim 1, wherein the forward signal transmitter 268 is
A first filter 410 for removing an out-of-band frequency from the signal collected by the antenna;
A low noise amplifier, comprising: a first amplifier 420 for performing a predetermined level of amplification while minimizing a noise figure included in an output signal of the first filter 410;
A first attenuator 430 for adjusting a gain of the output signal of the first amplifier 420 and performing temperature compensation;
A second amplifier 440 for amplifying the output signal of the first attenuator 430 to a predetermined level;
A second filter 450 for removing out-of-band components included in the amplified signal of the second amplifier 440;
A terminating amplifier comprising: a third amplifier 470 for high output amplifying the output signal of the second filter 450 which has undergone a predetermined gain control for RF transmission;
And a third filter (480) for removing and outputting out-of-band components from the output signal of the third amplifier (470).

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