KR101734190B1 - The apparatus of multi test to radio frequency board with broadcast channel - Google Patents
The apparatus of multi test to radio frequency board with broadcast channel Download PDFInfo
- Publication number
- KR101734190B1 KR101734190B1 KR1020150079292A KR20150079292A KR101734190B1 KR 101734190 B1 KR101734190 B1 KR 101734190B1 KR 1020150079292 A KR1020150079292 A KR 1020150079292A KR 20150079292 A KR20150079292 A KR 20150079292A KR 101734190 B1 KR101734190 B1 KR 101734190B1
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- South Korea
- Prior art keywords
- digital broadcasting
- digital
- terrestrial digital
- board
- test
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
- G01R31/2822—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere of microwave or radiofrequency circuits
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Engineering & Computer Science (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Amplifiers (AREA)
Abstract
In the present invention, RF testing of a digital RF amplification board for terrestrial digital broadcasting is not mainly performed in the field, but only a digital RF amplifying unit for terrestrial digital broadcasting to be detached or checked is transferred to a remote place, The time required for the test becomes longer and the overhead of testing increases, and a problem arises in that a plurality of digital RF amplification boards for terrestrial digital broadcasting are used in a 1: 1 customized manner It is urgently required to develop a field-customized RF test equipment capable of performing bidirectional data communication between a digital RF amplification board for terrestrial digital broadcasting and a control unit. Therefore, in order to solve this problem, a smart converter module 100, The computer 200, (300), one side is connected to a digital RF amplification board for terrestrial digital broadcasting through an RS 485 communication interface, the other side is connected to a microcomputer through an RS 232 communication interface, and a digital RF amplifier board for terrestrial digital broadcasting It is possible to test the circuit to be redesigned directly in the field so that the repair and repair time can be shortened by 80% compared with the conventional one. The portion to be connected to the digital RF amplifier board for terrestrial digital broadcasting is 2 to 25 pins Connector, and a USB port, and can be connected in a 1: 1 customized pin connection. The smart converter module for RF amplification board receives the data signal of the digital RF amplification board for terrestrial digital broadcasting, Converter module to the digital RF amplifier board for terrestrial digital broadcasting. Purpose test device for a digital RF amplifier board for terrestrial digital broadcasting through a smart converter module for an RF amplification board that can transmit and test multiple signals in a 1: 1 customized manner through bidirectional data communication.
Description
The present invention relates to a digital RF amplification board for terrestrial digital broadcasting, which is connected to a digital RF amplification board for terrestrial digital broadcasting through an RS 485 communication interface, and the other side is connected to a microcomputer through an RS 232 communication interface, It can be tested for customized circuit redesign, and it is possible to test terrestrial digital broadcasting using a smart converter module for RF amplification board that can be multi-tested in a 1: 1 customized manner by bi-directional data communication between a digital RF amplification board for terrestrial digital broadcasting and a microcomputer To a multifunctional test apparatus for a digital RF amplifier board for digital broadcasting.
Generally, a transmitting station and a relay station transmit a signal received from a broadcasting station to an antenna of a TV in each home that we observe. The transmitting station and the relay station are provided with a transmission antenna and a transmission line do.
Here, the transmission equipment is composed of an antenna, a digital amplification transmission unit, a modulation unit, and a digital / analog conversion transmission unit.
The digital amplifying and transmitting unit amplifies and transmits a digital broadcasting signal received through an antenna from a broadcasting station, and comprises a digital RF amplifying board for terrestrial digital broadcasting.
In order to perform RF testing of the digital RF amplifier board for terrestrial digital broadcasting, there is a method of testing a packet transmitted and received through an antenna and a method of directly connecting an RF unit and an instrument of a digital RF amplifier board for terrestrial digital broadcasting through an RF cable .
A method of directly connecting an RF unit and an instrument of a digital RF amplifier board for terrestrial digital broadcasting using an RF cable includes connecting an instrument to an output terminal of the RF unit using an RF cable and then checking the characteristics of the RF signal output from the RF unit And a receive (Rx) test for confirming the result of RF addition processing of the test signal transmitted to the RF unit through the meter.
RF testing of conventional digital RF amplification boards for terrestrial digital broadcasts requires testing of the applied electrical and mechanical parameters (e.g., temperature, humidity, pressure and parameters applied) as well as environmental parameters Voltage power, specific control handling and device parts, etc.).
At this time, only a digital RF amplification board for terrestrial digital broadcasting to which a failed digital transmission apparatus is to be tested is removed, and a test for transmitting and receiving is not performed in the field, and then the signal is transferred to a remote site. , It has to be tested separately through the equipment, so that the time required for the test becomes longer and the overhead of the test increases.
In addition, it is urgent to develop a field-customized RF test equipment that can be tested in bidirectional data communication between a digital RF amplifier board for terrestrial digital broadcasting and a control unit by connecting with a digital RF amplifier board for a plurality of terrestrial digital broadcasts in a 1: 1 customized manner.
In order to solve the above problems, one side of the present invention is connected to a digital RF amplification board for terrestrial digital broadcasting through an RS 485 communication interface, and the other side is connected to a microcomputer through an RS 232 communication interface, The RF amplifier board can be tested to be able to redesign the circuit in a customized manner in the field. The data signal of the digital RF amplifier board for terrestrial digital broadcasting is received through the smart converter module for the RF amplifier board, Smart converter module for RF amplification board that can transmit multitest signal to digital RF amplification board for terrestrial digital broadcasting through bidirectional data communication through smart converter module for amplification board. Test sheet The purpose is to provide value.
In order to accomplish the above object, a multifunctional test apparatus for a digital RF amplifier board for terrestrial digital broadcasting through a smart converter module for an RF amplifier board according to the present invention comprises:
One side is connected to a digital RF amplification board for terrestrial digital broadcasting via an RS 485 communication interface and the other side is connected to a microcomputer through an RS 232 communication interface so that a multi test signal A
The smart converter module for the RF amplifier board is connected to the RS 232 communication interface. The smart converter module for the RF amplifier board receives the data signal of the digital RF amplifier board for terrestrial digital broadcasting, A
Current, temperature, AGC level, high frequency input and output power, VSWR (reflected wave power), frequency, and serial data of a digital RF amplification board for terrestrial digital broadcasting transmitted to a microcomputer And a display unit (300) for displaying the image on the screen.
As described above, according to the present invention, it is possible to test a digital RF amplification board for terrestrial digital broadcasting in a transmission station and a relay station so that the circuit can be redesigned in a customized manner in the field so that the repair and repair time can be shortened by 80% It has a 2 to 25 pin connector and a USB port for connection to a digital RF amplification board for terrestrial digital broadcasting. It has a 1: 1 custom pin connection, A multi-test signal is transmitted to a digital RF amplification board for terrestrial digital broadcasting through a smart converter module for an RF amplification board as a response signal to receive a data signal of a digital RF amplification board for terrestrial digital broadcasting, 1 can be customized to multi-test, and therefore, There is a significant effect that the test time and the production efficiency can be increased.
FIG. 1 is a configuration diagram showing components of a
2 is a perspective view illustrating the components of a
3 is a diagram illustrating an RS 232 connection according to an embodiment of the present invention, which is configured as a DB 9-pin connector and connected to an RS 232 port of a microcomputer.
4 illustrates that the RS 485 connection unit according to the present invention is configured such that any one of the 2-pin terminal block connector 131, the 25-
5 is an internal exploded perspective view showing internal components of a smart converter module for an RF amplifier board according to the present invention,
6 is a circuit diagram showing components of the smart converter control unit according to the present invention,
FIG. 7 is a block diagram showing components of a microcomputer according to the present invention.
8 is a block diagram showing the components of the multi-data signal of the microcomputer according to the present invention,
FIG. 9 is a block diagram illustrating components of a digital RF amplifier board for terrestrial digital broadcasting according to the present invention.
10 is a block diagram illustrating components of a
11 is a flowchart illustrating a multifunction test according to an embodiment of the present invention, in which a
First, a transmitting station and a relay station described in the present invention transmit a signal received from a broadcasting station to an antenna of a TV in each home in which we view it. This is a transmission antenna and an attached line- The equipment is installed and configured.
Here, the transmission equipment is composed of an antenna, a digital amplification transmission unit, a modulation unit, and a digital / analog conversion transmission unit.
The digital amplifying and transmitting unit amplifies a digital broadcasting signal received through an antenna and transmits the digital broadcasting signal. The digital amplifying and transmitting unit includes a digital RF amplifying board for terrestrial digital broadcasting.
In the present invention, the portion to be connected to the digital RF amplification board for terrestrial digital broadcasting is composed of a 2-pin to 25-pin connector and a USB port and can be pin-connected in a 1: 1 customized form. A multi-test signal is transmitted to a digital RF amplification board for terrestrial digital broadcasting through a smart converter module for an RF amplification board as a response signal in response to receiving a data signal of a broadcasting digital RF amplification board, As a main feature.
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram illustrating components of a
First, the
One side of the
The module
First, the
The
A RS 485 connection part connected to a digital RF amplification board for terrestrial digital broadcasting via an RS 485 communication interface is formed on one side and an RS 232 connection part connected to the microcomputer through an RS 232 communication interface is formed on the other side, The
Second, the RS 232
The RS 232
As shown in FIG. 3, the DB 9-pin connector is connected to the RS 232 port of the microcomputer.
The RS232 connection unit is configured to be directly connected to the microcomputer by 1: 1 or by using a 9-pin extension cable.
Third, the RS 485
The RS 485
As shown in FIG. 4, any one of the 2-pin terminal block connector 131, the 25-
The RS 485
The RS 485 connection supports up to 32 multi-drop modes, and the two lines are composed of a differential signal and a half-duplex scheme.
Fourth, the smart
The smart
5 and 6, when a digital RF amplification board for terrestrial digital broadcasting is connected to the RS 485 connection unit including the 2-pin terminal block connectors CON2-1 and CON2-2, the MAX485IC performs inversion amplification and non- And transmits the RS485 signal of the digital RF amplification board for terrestrial digital broadcasting connected through amplification to the MAX232IC.
At this time, the MAX232IC converts the input RS485 signal to an RS232 signal and transfers it to an RS 232 interface consisting of a
At this time, the RS232 connection unit is converted into the transmission mode (TXD) and transmits the RS232 signal to the microcomputer.
When the receiving signal is transmitted from the microcomputer, the RS232 interface unit is converted into the receiving mode (RXD) and receives the multi-test signal transmitted from the microcomputer and the RF frequency signals of 5 KHz, 50 KHz, and 500 KHz.
The
Next, the
The
As shown in FIG. 7, the smart
First, the smart
The
This provides a visual interface to the monitoring section, checks the smart chip IC of the currently connected digital RF amplifier board for digital terrestrial broadcasting, analyzes the connection state of the smart chip IC, and the connection state between the smart chip IC pin and the surrounding electronic components And debug.
Then, it is configured to change the high / low value to each pin of the smart chip IC and adjust the oscillation.
Second, the defective electronic
The defective electronic
This is accomplished by point-and-click operation through the Run / Stop and Pass / Fail interfaces.
Here, the Run / Stop interface functions to test the functions of the electronic components by applying power to the components in the digital RF amplification board for terrestrial digital broadcasting and to the electronic components from the outside.
The Pass / Fail interface is a default set, and functions to detect defective electronic components through a fail signal when testing a digital RF amplifier board for terrestrial digital broadcasting.
The runtime environment that is the same as the electronic component manufacturing environment refers to a runtime environment in consideration of DC supply voltage, RF input power, operating temperature range, supply current, frequency, power gain, power output, and input / output impedance.
Third, the
The
The circuit is redesigned and the power is applied to the digital RF amplifier board for terrestrial digital broadcasting, and it is tested and verified by Functional or 5KHz, 50KHz, and 500KHz RF frequency signals in advance.
Fourth, the monitoring
The
Fifth, the
The
8, the multi-test signal of the microcomputer according to the present invention includes an RS 485
The RS 485
The ground
The PA PS ON
The PA PS ON Answer
The PA reset mode 200e resets a power amplifier signal generated when a terrestrial broadcast signal is transmitted from a digital RF amplifier board for terrestrial digital broadcasting.
The defective electronic component (O / P Fault) test mode 200f serves to check whether a driving failure of an electronic component is caused by applying power to an electronic component of a digital RF amplification board for terrestrial digital broadcasting.
The PA PS Fault test mode 200g checks whether a power amplification signal generated at the time of transmitting a terrestrial broadcast signal of a digital RF amplification board for terrestrial digital broadcasting and whether the signal amplifier signal is defective .
The O / P control test mode 200h serves to check the driving state, progress state, and smart chip IC state of the digital RF amplifier board for terrestrial digital broadcasting.
The RF output test mode 200i is a digital RF amplification board for terrestrial digital broadcasting and sequentially performs RF power amplification by 5 kHz, 50 kHz, and 500 kHz RF frequency driving signals.
The Reflect test mode 200j serves to check a Reflect signal generated in a digital RF amplifier board for terrestrial digital broadcasting at the time of testing.
The
The measurement channel test mode 200l sets the broadcast channel to the number of reference channels A1 +, A1-, A2 +, A2-, A3 +, A3-, A4 +, A4-, A5 +, A5-, A6 +, A6- And then checks whether the frequency output is normally transmitted according to the reference frequency band according to the number of reference channels.
Next, the
The
Next, a digital
The terrestrial digital broadcasting digital
9, the first tracking
The first tracking
This is made up of electronic components of the coil inductor L, VD1, capacitors C1 and C2, and resistor R1, for example.
The RF automatic gain
This consists, for example, of a resistor R2, a dual gate MOSFET, a bias resistor R3, and an electronic component of RFC1.
The second tracking
This includes, for example, the electronic components of capacitors C3, VD2, capacitor C4, inductor L2, L3 interdigital capacitor Cp, capacitors C5, VD3, capacitor C6 and resistor R4.
The frequency
This is made up of electronic components of a smart chip IC or main chip IC, for example.
The intermediate
For example, it is composed of electronic parts of capacitors C7, C8, C9, C10, inductor Lp, VD4, capacitor C11, and resistor R5.
Hereinafter, a specific operation of a multifunctional test apparatus for a digital RF amplifier board for terrestrial digital broadcasting through a smart converter module for an RF amplifier board according to the present invention will be described.
First, one side of the smart converter module for RF amplification board is connected to a digital RF amplification board for terrestrial digital broadcasting through an RS 485 communication interface.
Next, the other side of the smart converter module for the RF amplifier board is connected to the microcomputer through the RS 232 communication interface.
Next, when a digital RF amplifier board for digital broadcasting and a microcomputer are connected to each other, a multi-test signal is transmitted to a digital RF amplifier board for terrestrial digital broadcasting in accordance with a microcomputer multi-test signal.
Next, the
Here, the multi-test signals are RS 485 connection test mode, ground ground test mode, PA PS ON control test mode, PA PS ON answer test answer mode, PA reset mode, O / P fault, Test Mode, PA PS Fault Test Mode, O / P Control Test Mode, RF Output Test Mode, Reflect Test Mode, Temperature Test Mode, Measurement Channel Test Mode is selected.
Finally, the display unit is driven according to the control signal of the
1: Multifunction test device for digital RF amplification board for terrestrial digital broadcasting
100: smart converter module for RF amplification board 110: module body
120: RS232 connection part 130: RS485 connection part
140: smart converter control unit 200: microcomputer
300:
Claims (7)
The smart converter module for the RF amplifier board is connected to the RS 232 communication interface. The smart converter module for the RF amplifier board receives the data signal of the digital RF amplifier board for terrestrial digital broadcasting, A microcomputer 200 for transmitting a multi-test signal to a digital RF amplification board for terrestrial digital broadcasting through a converter module to perform multi-test through bidirectional data communication,
Current, temperature, AGC level, high frequency input and output power, VSWR (reflected wave power), frequency, and serial data of a digital RF amplification board for terrestrial digital broadcasting transmitted to a microcomputer And a display unit (300) for displaying the RF signal on the RF amplifier board. The multifunctional test apparatus for a digital RF amplifier board for terrestrial digital broadcasting through a smart converter module for an RF amplifier board.
A module body 110 which is formed in a rectangular box shape and protects and supports each device from external pressure,
An RS 232 connection part 120 located at a rear end side of the module main body and connected to the RS 232 port of the microcomputer to interface with the RS 232 interface,
An RS 485 connection unit 130 located at a front end of the module main body and connected to an RS 485 port of a digital RF amplification board for terrestrial digital broadcasting to perform an RS485 interface,
Converts the RS485 signal, which is connected to the RS 485 port of the digital RF amplification board for terrestrial digital broadcasting, into an RS232 signal, and transmits the RS232 signal to the microcomputer. The multi-test signal And a smart converter control unit 140 for receiving RF signals of 5 KHz, 50 KHz, and 500 KHz and converting the RF signals into RS485 signals and transmitting them to a digital RF amplification board for terrestrial digital broadcasting. Multifunction test equipment for digital RF amplification board for terrestrial digital broadcasting through.
The state of the smart chip IC of the digital RF amplification board for terrestrial digital broadcasting connected through the smart converter module for the RF amplifier board is checked using the test signal and the debug protocol signal set in advance and then the smart chip IC connected to other electronic components A smart chip analysis unit 210 for analyzing mutual connection states of pins,
A defective electronic part detector 220 for detecting and testing a connection test between electronic components and a defective electronic component based on the same runtime environment as the electronic component manufacturing environment of the digital RF amplifier board for terrestrial digital broadcasting,
Verification of reliability by pre-testing each digital RF amplifier board for terrestrial digital broadcasting, which has been redesigned with customized electronic components, in place of defective electronic components detected by the defective electronic component detector, in accordance with each function or each of 5 KHz, 50 KHz and 500 KHz RF frequency signals. 230,
A control monitoring display control unit 240 for displaying the driving status and progress status of each device, smart chip IC status, defective electronic parts detection result, and function test result on the screen of the display unit,
It is connected to external smart device and wired / wireless communication network, and transmits data on the driving status and progress status of each device displayed on the screen of the display unit, smart chip IC status, defective electronic component detection result, and functional test result through wired / wireless communication network And a communication module (250) for transmitting the RF signal to the smart converter module.
And an RF output test mode (200i) for checking whether RF amplification is performed by sequentially applying 5 KHz, 50 KHz, and 500 KHz RF frequency driving signals to a digital RF amplification board for terrestrial digital broadcasting. Multifunctional test equipment for digital RF amplifier boards for terrestrial digital broadcasting via smart converter module.
After setting the broadcast channel to the number of reference channels (A1 +, A1-, A2 +, A2-, A3 +, A3-, A4 +, A4-, A5 +, A5-, A6 +, A6-) And a measurement channel test mode (200l) for checking whether or not the frequency output is normally transmitted according to the frequency band of the multifunctional RF amplifier board. The multifunctional test apparatus for a digital RF amplification board for terrestrial digital broadcasting through a smart converter module for an RF amplifier board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150079292A KR101734190B1 (en) | 2015-06-04 | 2015-06-04 | The apparatus of multi test to radio frequency board with broadcast channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150079292A KR101734190B1 (en) | 2015-06-04 | 2015-06-04 | The apparatus of multi test to radio frequency board with broadcast channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20160143133A KR20160143133A (en) | 2016-12-14 |
| KR101734190B1 true KR101734190B1 (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020150079292A KR101734190B1 (en) | 2015-06-04 | 2015-06-04 | The apparatus of multi test to radio frequency board with broadcast channel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101022908B1 (en) | 2008-10-02 | 2011-03-16 | 삼성전기주식회사 | Test device for wireless equipment |
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