KR101826525B1 - Rf signal distribution monitoring apparatus for antenna - Google Patents

Abstract

The present invention relates to an RF output distribution monitoring apparatus for an antenna, capable of performing monitoring for efficiently managing an RF output transmitted to multiple antennas. Provided is the RF output distribution monitoring apparatus for an antenna, which includes a detection unit including a cylindrical main body to which a branch line from an RF output distribution unit is connected and an output unit which is combined with the main body and to which a monitoring line is connected, and a monitoring module which is connected to the detection unit combined with each branch line through the monitoring line and collects a value of the RF output transmitted from an RF output distribution unit to the antenna at a plurality of points.

Description

Technical Field [0001] The present invention relates to an RF output distribution monitor for an antenna,

The present invention relates to an RF output distribution and monitoring of an antenna, and more particularly, to a monitoring device for an RF output distributor of an antenna capable of efficiently managing RF output transmitted through multiple antennas.

Generally, the transmitter, which is a radio frequency (RF) equipment used for high frequency equipment, communication, broadcasting, etc., monitors the high frequency power supplied to the load side of the antenna connected to the high frequency output terminal, alerts when a trouble occurs, A warning system is required.

In order to transmit radio signals of various channels, an RF output distributor for RF output is disposed in a plurality of antennas provided in a transmission tower, and an output corresponding to each antenna and frequency characteristics is provided, .

Korean Unexamined Patent Publication No. 2000-0071814 discloses a conventional antenna structure and its equipment, and FIG. 1 is a block diagram thereof.

As shown, the antenna array 10 has a parallel corporate feed structure and includes a plurality of antenna components 12. The configuration of such an antenna array includes an RF output divider, an amplifier, and the like, and an appropriate RF signal is amplified and input to each feed line position.

In order to monitor this transmission antenna configuration, it has been common to detect and manage only the amount of RF signal output on the simple RF output distributor side. For this reason, it is difficult to know the result of how much the signal is actually inputted and outputted from the antenna side, and it has not been practically applied.

Particularly, in the case of a large-sized antenna structure formed in a bulky and high transmission tower, since the feed line structure from the RF output divider is long and complicated, the output is inevitably degraded and the inefficiency There is no countermeasure against.

Therefore, in the multi-antenna structure, devices for practically managing the RF signal supplied to the antenna and analyzing it according to the environment have been requested.

Disclosure of Invention Technical Problem [8] The present invention has been made to solve the above-mentioned problems of the related art, and it is an object of the present invention to provide an apparatus and method for monitoring and controlling an RF output state at a stage after an RF output distribution in order to efficiently manage an antenna output operated in a broadcast, And to provide an RF output distribution monitoring apparatus for an antenna which is provided with an antenna.

As means for solving the above-mentioned technical problem,

The present invention relates to a radio communication apparatus comprising a detection unit including a cylindrical main body to which a branch line from an RF output distribution unit is connected and an output unit coupled to the main body and connected to a monitoring line, And a monitoring module for collecting a value of an RF output transmitted from the RF output distribution unit to the antenna at a plurality of locations.

The main body unit may include a waveguide as one embodiment to detect an RF output from the antenna.

The body portion may include an EIA RF flange adapter as another embodiment and may be coupled to detect an RF output that is input.

The detecting unit may include a flange-shaped input end to which a branch line is input from one side of the main body unit and a flange-shaped output end to which a branch line is output from the other side of the main body unit. The input end and the output end are connected to an adapter Section.

The detection unit may further include an attenuator unit interposed between the input end and the end of the distribution unit to adjust the intensity of the RF output.

The monitoring module is connected to the attenuator unit through an attenuation control line, and can control the intensity of the RF output in the pre-acquisition step of the RF output after the RF output distribution in the distribution unit.

According to the present invention, it is possible to actually check the output values that can be actually output from the antenna after the RF output distribution step, thereby effectively controlling the output from the feeder line to the antenna and eliminating radio interference and interference .

Further, since the present invention can be effectively combined with the branch line of the structure as a simple structure, it is possible to collect information effectively, thereby improving the economical efficiency in facility and management, and in particular, And monitoring and control can be performed remotely, so that effort and cost can be saved in managing a plurality of radio wave facilities.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an antenna structure and its equipment of the prior art; FIG.
2 is a perspective view for explaining an embodiment of an RF output distribution monitoring apparatus for an antenna according to the present invention.
3 is a front view showing a state in which the RF output distribution monitoring apparatus of the antenna of the present invention is coupled to the distribution unit.
4 is a block diagram showing a control module in an RF output distribution monitoring apparatus of an antenna of the present invention.
5 is a block diagram showing an RF output distribution monitoring system to which an RF output distribution monitoring apparatus of the antenna of the present invention is applied.

Hereinafter, an RF output distribution monitoring apparatus for an antenna according to the present invention will be described in detail with reference to the accompanying drawings.

It is to be understood, however, that the embodiments described below are only for explanation of the embodiments of the present invention so that those skilled in the art can easily carry out the invention, It does not mean anything.

In the following description, when a part is referred to as being 'connected' to another part, it includes not only a direct connection but also a case where another part or device is connected in between. In addition, when a part is referred to as including an element, it is to be understood that the element may include other elements, not the exclusion of any other element, unless specifically stated otherwise.

The present invention basically comprises a detection unit having a cylindrical main body to which a branch line of the RF output distribution unit is connected and an output unit coupled to the main body to connect the monitoring line, And a monitoring module connected to the plurality of antennas and collecting outputs input to the plurality of antennas.

Basically, the present invention is based on an RF output distribution monitoring apparatus for monitoring antenna outputs of terrestrial broadcasts (UHD, DTV, UHDTV, FM, and DMB) for each medium. However, various types of radio signals A repeater, an antenna module, and the like having multiple antennas for outputting a plurality of output signals.

In addition, it should be understood that the line through which signals are transmitted and received according to the present invention is not necessarily limited to a wired form, and includes radio waves through which various types of wireless signals are transmitted and received.

2 is a perspective view for explaining an embodiment of an RF output distribution monitoring apparatus for an antenna according to the present invention.

As described above, the detection unit 100 of the present invention is coupled to each branch line 101 and is used to detect an RF output signal transmitted thereto. For this purpose, the main body 110 may be a structure in which the branch lines 101 are connected to both ends.

In one embodiment, the body portion 110 includes an EIA RF flange adapter and is coupled to detect an input RF output.

In another embodiment, the main body 110 may be a waveguide, a microwave transmission path, a metal tube, or a copper or aluminum tube. However, the present invention is not limited thereto. The operation and configuration of the waveguide can be applied to the structure of a known waveguide detector, so a detailed description thereof will be omitted.

One end of the main body 110 may be an input end 120 and the other end may be an output end 130. The input end 120 may be configured as a flange having a through hole (not shown) so that it can be fastened to the distributor (102 of FIG. 3) or coupled to an attenuator (200 of FIG. 3) The output end 130 may also be configured in the form of a disk-like flange. In this case, the input end and / or the output end may also constitute an RF flange adapter.

A flange-shaped input end 120 into which a branch line 101 is input and a flange-shaped output end 130 through which a branch line is output from the other end of the main body 110, The shape may be formed so as to protrude further toward the outer periphery than the body portion.

Therefore, the input end 120, the output end 130, and the main body 110 may include an adapter unit to which the branch lines are coupled. For example, the input end 120 and the arm end connected to the male terminals of the branch lines, Or a means for connecting to the female terminal of a branch line or a branch line may be considered and is optional.

The main body 110 measures the output intensity of the RF signal input to the input end 120 and outputs the RF signal to the monitoring module 300 of FIG. 4 to be described later .

The detection unit 100 may include an output unit 140 that is an output port through which the monitoring line 401 can be connected to one side. The connection with the monitoring module 300 is preferably an RS232C communication standard. But is not limited thereto.

In addition, the output unit 140 may be configured as a wireless communication module for various types of wireless communication such as Zigbee, Bluetooth, and WIFI.

The branch line 101 may be any one of a plurality of lines branched from the distribution unit 102 and the main body 110 of the detection unit 100 is coupled to the branch line 101.

3 is a front view showing a state in which the RF output distribution monitoring apparatus of the antenna of the present invention is coupled to the distribution unit.

In the present invention, an example is shown in which the distributing unit 102 is configured in a 4-way form, but the branching manner, shape, and number are not necessarily limited to the illustrated examples.

The detection unit 100 is disposed on the branched line 101 side of the distribution unit 102 and antennas (not shown) corresponding to the respective output frequencies are coupled to the ends of the respective branch lines 101.

The detection unit 100 is connected to the monitoring module 300 through each monitoring line 401. The monitoring module 300 analyzes and stores the detection output values for each position and transmits the detected output values to the outside Can be performed.

The detector 100 may further include an attenuator 200 that controls an output signal to be transmitted to the antenna according to the detection output. The attenuator unit 200 may be connected to the monitoring module 300 through an attenuation control line 402. The attenuator unit 200 may include a variable attenuator to adjust a radio wave signal output from the antenna to provide a stable and optimized propagation environment. Function. At this time, various configurations of the known signal attenuator may be applied.

The attenuator 200 is preferably coupled between the ends of the distributor 102 of the input end 120 of the detector 100 so that attenuation can be achieved in the output detection stage of the detector 100.

4 is a block diagram showing a control module in an RF output distribution monitoring apparatus for an antenna according to the present invention.

The monitoring module 300 receives the value of the RF output measured and detected from each branch line 101 and determines whether the appropriate RF signal is being transmitted at each location or the difference between the target value of the output and the value of the signal degradation So that the RF output detecting unit 310 functions.

The attenuator controller 320 controls the operation of the attenuator unit 200 according to the calculated value of the RF output detector 310 to stabilize the output from each antenna.

The communication unit 340 basically performs the function of receiving the detection value of the RF output of the detection unit 100 through the monitoring line 401 and the RS232C communication standard can be applied thereto as described above. The attenuator 200 and the attenuation control line 402 are connected to each other to stabilize an output signal output to the antenna.

Also, the communication unit 340 communicates with an external local controller (510 in FIG. 5) or a remote server (520 in FIG. 5) to allow a user or an administrator to confirm via a laptop, a smart phone, Can be used.

On the other hand, the standard as the preferred embodiment of the detection unit 100 can be set as follows.

Item standard Frequency Range 470 to 806 MHz Insettion Loss 0.2dB (MAX) V.S.W.R ? 1: 1.2 Detecting Range 46 ~ 56dBm Detecting Accuracy ± 5% of reading Temperature Range -30 to + 50 ° C

Here, the temperature range of the operating condition of the detecting unit 100 of the present invention can be determined in a relatively wide range from -30 to +50 DEG C, and since the error of the actually detected output can be influenced by the temperature, Compensation may be required. Therefore, it is preferable that the monitoring module 300 of the present invention further includes a temperature compensating unit 330.

For example, in addition to considering the external temperature difference, the 1dBm difference in the signal represents a 1Kw output difference, which means a change in temperature, so these factors should also be considered. Accordingly, the temperature due to the difference of the output must be compensated, so that the optimum value of the output value and / or the adjustment value for attenuating and / or the output of the antenna is enabled by the algorithm of the temperature compensating unit 330. [

The temperature compensation unit 330 receives the temperature detection signal input from the monitoring line 401 and outputs a temperature compensation signal to the temperature compensation unit 330. The temperature compensation unit 330 receives the temperature detection signal from the monitoring line 401, As a factor of.

5 is a block diagram showing an RF output distribution monitoring system to which an RF output distribution monitoring apparatus of the antenna of the present invention is applied.

In the drawings, a detection module 1000 in which respective detection units 100 are arranged is illustrated. The detection signals are collected in a monitoring module 300 and managed .

The monitoring module 300 is connected to the local controller 510 in an individual local area so that the user or the administrator can visually confirm it. The connection between the local controller 510 and the monitoring module 300 is preferably a Bluetooth standard, but is not limited thereto. The local controller 510 may be various types of image realization devices such as a notebook, a smart phone, a tablet, and a PC.

In addition, the monitoring modules 300 for the respective antenna structures can transmit and receive information to and from the remote server 520 through a predetermined remote transmission method. The remote server 520 may monitor and remotely control the antenna output monitoring values for a plurality of locations according to a predetermined area. Here, for remote control, the RF output distribution monitoring apparatus of the antenna of the present invention can be connected as an NMS (Network Management System) network management system.

Meanwhile, the RF output distribution monitoring apparatus of the antenna of the present invention can be used in combination with the output monitoring apparatus of the power amplifier of the transmitter, so that the efficiency of the output can be more accurately monitored.

The RF output distribution monitoring apparatus of the present invention can effectively check output values that can be actually output from the antenna after the RF output distribution step, thereby efficiently controlling the RF output supplied from the feeder line to the antenna, There is an advantage that it is possible to eliminate the interference.

In addition, since the present invention can be effectively combined with a branch line of a structure as a simple structure, it is possible to collect information effectively, thereby improving the economical efficiency in facility and management, and in particular,

In addition, since it is possible to monitor and control both locally and remotely, there is an advantage that labor and cost can be saved in management of plural radio wave facilities.

In the foregoing, the present invention has been described in detail based on the embodiments and the accompanying drawings. However, the scope of the present invention is not limited by the above embodiments and drawings, and the scope of the present invention will be limited only by the content of the following claims.

100 ... Detection unit 101 ... Branch line
110 ... main body part 120 ... input end
130 ... output terminal 140 ... output terminal
200 ... attenuation base 300 ... surveillance module
310 ... RF output detector 320 ... attenuator controller
330 ... temperature compensating unit 340 ... communication unit
401 ... monitoring line 402 ... attenuation control line
510 ... local controller 520 ... remote server

Claims (5)

A detection unit having a cylindrical main body to which a branch line from the RF output distribution unit is connected and an output unit coupled to the main body and connected to the monitoring line; And
And a monitoring module coupled to the detection part coupled to each branch line and collecting the value of the RF output transmitted from the RF output distribution part to the antenna at a plurality of points by a monitoring line,
Wherein,
An RF output distribution monitoring device of an antenna having an EIA RF flange adapter and coupled to detect an input RF output.
The method according to claim 1,
The monitoring module includes:
And a temperature compensation unit for receiving a temperature detection signal from a temperature sensor included in the detection unit and calculating an output of the antenna according to the temperature.
The method according to claim 1,
Wherein:
A flange type input end to which a branch line is input from one side of the main body part and a flange type output end to which a branch line is outputted from the other side of the main body part and an adapter part in which a branch line is coupled to the input end part and the output end part, RF output distribution monitoring device.
The method of claim 3,
Wherein:
And an attenuator unit interposed between the input end and the end of the distribution unit to adjust the intensity of the RF output.
5. The method of claim 4,
The monitoring module includes:
An RF output distribution monitor of an antenna connected through an attenuator base and an attenuation control line and controlling the intensity of RF output in a pre-acquisition stage of RF output value after RF output distribution in a distribution unit.

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