KR101715719B1 - A Device For Digital Broadcast Signal Receiver Tests - Google Patents

Abstract

The present invention relates to an all-in-one test apparatus for a digital broadcast signal receiver, capable of automatically performing a test on a broadcast signal of a second generation digital broadcasting standard. According to the test apparatus for the digital broadcast signal receiver includes: an original stream analysis device for analyzing an original broadcast stream and extracting broadcast signal transmission options, programs and system information; an information editing and multiplexing device for receiving changes to edit and generate an information file to which the changes are applied, and generating a test broadcast stream to which the changes are applied by multiplexing, based on the broadcasting signal transmission options, the programs and the system information extracted by the original stream analysis device; a test scenario editing device for generating a test scenario by setting a test range for the broadcast signal transmission option according to the data edited by the information editing and multiplexing device; an RF broadcast signal generation device for generating a test RF broadcast signal based on the test stream and RF-transmitting the RF broadcast signal to a test receiver, based on the data set by the test scenario editing device; a receiver controlling and analyzing device for remotely controlling the test receiver to receive the test RF broadcast signal, and receiving extracted information data to perform analysis on the test receiver; and an automatic test control device for controlling respective units to perform an automatic test.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates generally to a digital broadcast signal receiver,

The present invention relates to an all-in-one test apparatus for a digital broadcasting signal receiver, and more particularly to a DVB-T2, DVB-S2, and DVB-S2 test apparatus having various multiplexing and modulator transmission options, complicated program and system information, The present invention relates to an all-in-one test apparatus for a digital broadcast signal receiver for testing a transmission option for a broadcast signal of a second generation digital broadcasting standard such as ATSC-C2, ATSC-MH, and transmitting and receiving program and system information.

 DVB-T2, DVB-S2, DVB-C2, and DVB-T, which are second generation digital broadcasting standards, as compared to DVB-T, DVB-S, DVB-C and ISDB- ATSC-MH, etc. have various multiplexing and transmission options, and since program and system information are complex, it takes a lot of time and manpower and resources to conduct the test of transmission and reception of these information.

In particular, with DVB-T2, there are hundreds of thousands of combinations of test items in excess of hundreds of thousands, so the receiver developer releases the receiver without sufficient testing of transmission options and program and system information And when the broadcasting company changes the transmission option or the like after the release, the receiver does not operate.

For example, as shown in FIG. 3, the DVB-T2 employs a PLP (Physical Layer Pipe) scheme for setting transmission options for each service when two or more services are transmitted in one frequency band. Therefore, FEC, interleaving, etc. can be set differently.

Therefore, for the DVB-T2 receiver test, hundreds of thousands of test scenarios and test streams must be configured one by one, and the receiver developer is hard to test the number of cases in all cases.

Therefore, the receiver developer does not perform sufficient test in advance because the receiver developer proceeds only a limited operation test corresponding to the broadcasting system at the time of release, and if the transmission option of the specific broadcasting company is changed after the receiver is released, A problem that does not work occurs.

It is an object of the present invention to provide a method and apparatus for broadcasting a second-generation digital broadcasting standard such as DVB-T2, DVB-S2, DVB-C2 and ATSC-MH having various multiplexing and modulator transmission options and complicated program and system information compared to the first- To-one test of a digital broadcast signal receiver for testing transmission options for signals and transmitting and receiving program and system information.

According to an aspect of the present invention, there is provided an all-in-one testing apparatus for a digital broadcasting signal receiver for performing an automatic testing of a digital broadcasting receiver according to a second generation broadcasting standard, An original stream analyzing means for analyzing a broadcast stream to extract broadcast signal transmission options, program information and system information; If there is a change in the broadcast signal transmission option, the program information, or the system information using the broadcast signal transmission option extracted by the original stream analysis means, the program information, and the system information, Information editing and multiplexing means for editing and generating an information file and generating a test broadcast stream to which the change is applied by multiplexing; Test scenario editing means for automatically generating a test scenario when a test range for a broadcast signal transmission option is set in correspondence with the information file edit item of the information editing and multiplexing means; An RF broadcast signal generating means for generating a test RF broadcast signal based on the test broadcast stream based on the setting items of the test scenario editing means and transmitting the RF broadcast signal to the test receiver; Receiver controlling and analyzing means for remotely controlling the test receiver to receive the test RF broadcast signal and extracting information data to perform analysis on the test receiver; And an automatic test control means for controlling the components of the all-in-one test apparatus to perform an automatic test.

The test broadcast stream is a broadcast stream of a second-generation digital broadcast standard including DVB-T2, DVB-S2, DVB-C2 and ATSC-MH.

The original broadcast stream may be any one of a first-generation digital broadcast stream including ATSC, DVB-T, DVB-S, DVB-C and ISDB-T, DVB-T2, DVB-S2, DVB- And a second broadcasting standard including the second generation digital broadcasting standard.

The digital broadcasting signal receiver testing apparatus may further include storage means for storing the original broadcasting stream, the information file, and the test broadcasting stream.

According to an aspect of the present invention, there is provided an all-in-one testing apparatus for a digital broadcasting signal receiver for performing an automatic testing of a digital broadcasting receiver according to a second generation broadcasting standard, Source stream analyzing means for analyzing a DVB-T2 based T2MI packet for a broadcast stream; Wherein the broadcast signal transmission option, program information, and system information analyzed by the original stream analysis means are used for the original broadcast stream, and when there is a change in the broadcast signal transmission option, the program information, or the system information, Information editing and multiplexing means for editing the T2MI packet information based on DVB-T2 by applying the change and generating a T2MI test stream by multiplexing; Test scenario editing means for automatically generating a test scenario when a test range for a broadcast signal transmission option is set in correspondence with an edit item of the information editing and multiplexing means; RF broadcast signal generating means for generating a test RF broadcast signal based on the test stream based on the setting items of the test scenario editing means and transmitting the RF broadcast signal to a test receiver; Receiver control and analysis means for receiving the test RF broadcast signal by remote control of the test receiver and extracting the information data to perform analysis on the test receiver; And an automatic test control means for controlling the components of the all-in-one test apparatus to perform an automatic test.

According to an aspect of the present invention, there is provided an all-in-one testing apparatus for a digital broadcasting signal receiver for performing an automatic testing of a digital broadcasting receiver according to a second generation broadcasting standard, An original stream analyzing means for analyzing a H.222 based TS packet and a DVB-T2 based T2MI packet with respect to a broadcast stream; If there is a change in the broadcast signal transmission option, the program information, or the system information using the broadcast signal transmission option, program information, and system information analyzed by the original stream analysis means, Information editing and multiplexing means for editing TS packet information based on H.222 and generating a TS test stream by multiplexing, editing T2MI packet information based on DVB-T2, and generating a T2MI test stream by multiplexing; Test scenario editing means for automatically generating a test scenario when a test range for a broadcast signal transmission option is set in correspondence with an edit item of the information editing and multiplexing means; An RF broadcast signal generating means for generating a test RF broadcast signal based on the TS test stream or the T2MI test stream based on the set items of the test scenario editing means and transmitting the RF broadcast signal to a test receiver; Receiver controlling and analyzing means for remotely controlling the test receiver to receive the test RF broadcast signal and extracting information data to perform analysis on the test receiver; And an automatic test control means for controlling the components of the all-in-one test apparatus to perform an automatic test.

According to an aspect of the present invention, there is provided an all-in-one testing apparatus for a digital broadcasting signal receiver for performing an automatic testing of a digital broadcasting receiver according to a second generation broadcasting standard, When there is a change in the broadcast signal transmission option, the program information, or the system information by using the broadcast signal transmission option of the stream, the program information, and the system information, the change is applied to edit the information file, Information editing and multiplexing means for generating a test broadcast stream to which the change is applied by the information editing and multiplexing means; Test scenario editing means for automatically generating a test scenario when a test range for a broadcast signal transmission option is set in correspondence with the information file edit item of the information editing and multiplexing means; RF broadcast signal generating means for generating a test RF broadcast signal based on the test stream based on the setting items of the test scenario editing means and transmitting the RF broadcast signal to a test receiver; Receiver controlling and analyzing means for remotely controlling the test receiver to receive the test RF broadcast signal and extracting information data to perform analysis on the test receiver; And a control means for controlling each part of the all-in-one test apparatus to perform an automatic test.

The information editing and multiplexing means includes: TS editing and multiplexing means for editing the TS packet configuration information based on H. 222 and generating a TS stream for testing by multiplexing; and means for editing and multiplexing the T2MI packet configuration information based on DVB- And T2MI editing and multiplexing means for generating a T2MI stream for testing. In order to achieve the above object, the apparatus for testing digital broadcasting signal receivers according to the present invention is characterized in that the information editing and multiplexing means comprises: A TS editing and multiplexing means for editing the configuration information and generating a TS stream for testing by multiplexing; a T2MI editing and multiplexing means for editing the T2MI packet configuration information based on DVB-T2 and generating a T2MI stream for testing by multiplexing 130).
The test scenario editing means includes means for setting a range of an L1 signal parameter of the DVB-T2 and means for setting a range of a DVB-T2 PLP parameter (PLP Parameter).

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Second Generation Digital Broadcasting such as DVB-T2, DVB-S2, DVB-C2 and ATSC-MH having various multiplexing and modulator transmission options and complicated program and system information compared to the first generation digital broadcasting standard It enables transmission options for standard broadcast signals and test transmission and reception of program and system information.

For example, according to the present invention, when a user sets a test range for a test item of a second generation broadcasting standard including a DVB-T2 and a first generation digital broadcasting standard, a test scenario is automatically generated and stored so that an automated test can be performed Transmission options for broadcasting signals of the second generation broadcasting standard, and transmission and reception tests of programs and system information can be easily performed.

It is possible to analyze the existing broadcast stream and the TS configuration information file or the T2MI configuration information file for the broadcast stream and separately store the information file and the broadcast stream as the analysis result, It is possible to edit the change in real time based on the existing information file and to generate the test broadcast stream by re-multiplexing, so that the second generation digital broadcast signal transmission / reception test can be easily performed.

The present invention enables the test receiver to be remotely controlled in accordance with a test scenario, and to verify the operational performance of the receiver by comparing and analyzing the original parameters and information with the parameters and information analyzed at the receiver.

1 is a chart comparing transmission parameters of DVB-T and DVB-T2.
2 is a diagram illustrating a single PLP transmission parameter of DVB-T2.
FIG. 3 is a diagram exemplifying the concept of PLP, which is a logical channel in DVB-T2. FIG.
4 is a block diagram illustrating a DVB-T2 broadcast signal transmission / reception system.
5 is a block diagram illustrating a broadcast signal transmission system in DVB-T2.
6 is a schematic diagram illustrating a structure of a DVB-T2 Modulator Interface (DVB-T2 Modulator Interface) of DVB-T2.
7 is a block diagram illustrating a configuration of an all-in-one test apparatus for a digital broadcast signal receiver according to the present invention.
8 is a schematic diagram illustrating a configuration of a main part of an all-in-one test apparatus for a digital broadcast signal receiver according to the present invention.
9 is a schematic diagram illustrating a configuration of a main part of an all-in-one test apparatus for a digital broadcast signal receiver according to the present invention.
10 is a diagram illustrating a configuration of scenario editing means of an all-in-one test apparatus for a digital broadcast signal receiver according to the present invention.
11 is a diagram illustrating a configuration of scenario editing means of an all-in-one test apparatus for a digital broadcast signal receiver according to the present invention.
12 is a flowchart illustrating a process of performing an automatic test by an all-in-one test apparatus of a digital broadcast signal receiver according to the present invention.

Hereinafter, a configuration of a preferred embodiment of an all-one receiver test apparatus for a digital broadcasting signal according to the present invention will be described in detail with reference to the accompanying drawings.

7, an all-in-one test apparatus 100 for a digital broadcast signal receiver according to the present invention includes an original stream analyzing means 110 for analyzing a source broadcast stream, An information editing and multiplexing unit 120 for generating an information file and a test broadcast stream on which changes are applied and edited on the basis of the information, a test scenario editing unit 150 for generating a test scenario corresponding to the information file, RF broadcasting signal generating means 160 for generating RF broadcasting signals for testing based on the stream, receiver control and analysis means 170 for performing control and analysis on the test receiver 300, A storage unit 180 for storing test scenarios and the like, and an automatic test control unit 200 for controlling the respective units.

The original stream analyzing means 110 of the embodiment of the present invention analyzes an original stream received from an external device or stored in the storage means 180 to extract broadcasting signal transmission options and program and system information.

The original stream analyzing means 110 of the present embodiment includes a DVB-T, a DVB-S, a DVB-C, an ISDB-T and a second-generation digital broadcasting standard DVB-T2, DVB- It is possible to receive and analyze the original broadcast stream by the ATSC-MH or the like, and the information file and the original broadcast stream, which are the result of the analysis by the original stream analysis means, can be stored in the storage means 180.

For example, when the inputted original broadcast stream is a broadcast stream based on the first-generation digital broadcast standard DVB-T, the original stream analyzing unit 110 analyzes the TS packet based on H.222, When the stream is a broadcast stream based on DVB-T2, which is a second-generation broadcast standard, analysis is performed on the T2MI packet.

The information editing and multiplexing unit 120 of the present embodiment can input the changes based on the transmission option, program and system information analyzed by the original stream analysis unit 110, edit the information file, It is possible to generate a test broadcast stream to which the contents are applied.

For example, the information editing and multiplexing unit 120 of the present embodiment includes a TS editing and multiplexing unit 121 for editing the TS packet configuration information based on H. 222 and generating a TS stream for testing by multiplexing, And T2MI editing and multiplexing means 130 for editing the T2MI packet configuration information based on the T2MI packet configuration information and generating the T2MI stream for testing by multiplexing.

The TS editing and multiplexing unit 121 of the present embodiment includes a program and system information of a TS packet, for example, a program and system information protocol (PSIP), a master guide table (MGT), a virtual channel table (VCT) , EIT (Event Information Table), ETT (Extended Text Table), STT (System Time Table), DCT (Direct Channel Table) and DCCS Selection Code Table (DCCSCT).

In addition, the TS editing and multiplexing unit 121 of the present embodiment can modify, delete, and add broadcast services and EPGs. If there are any changes, the TS editing and multiplexing unit 121 can generate information files and store them in the storage unit, It is possible to apply and multiplex the changes of the data to form a corresponding test TS broadcast stream.

8, the T2MI editing and multiplexing unit 130 of the present embodiment modifies, deletes, and deletes the configuration of the T2MI packet based on DVB-T2 based on the analysis result of the T2MI packet in the original stream analyzing unit 110, Deletion and addition of a single PLP and a Multi PLP broadcasting service and an EPG, and when there is a change, an information file can be generated by applying it and stored in the storage unit 180, A T2MI broadcast stream for test may be formed by a preprocessing process (Input Pre-Processors), and the data may be split into TS format by data piping and input to the modulator 311.

The test scenario editing unit 150 of the present embodiment automatically receives a test range for the transmission option based on the information file formed by the information editing and multiplexing unit 120 and edits the test scenario.

For example, the test scenario editing unit 150 of the embodiment of the present invention may include means for setting the L1 signal parameter range of the DVB-T2 and means for setting the DVB-T2 PLP parameter range.

As shown in FIG. 10, the means for setting the L1 signal parameter range according to the present embodiment includes all or some of parameters such as FFT Size, Guard Interval, Pilot Pattern, Number of T2 Frame, T2 Frame Duration (ms) When you enter the range of the test for the selected item, you can automatically create a test scenario.
11, the means for setting the DVB-T2 PLP parameter range includes a PLP Number, a Type, a Code Rate, a Constellation, a Rotation, an FEC Type, a Mode, an Additional Block Count, an Inband A Flag, , ISSY, Time IL Length, and ISCR Bitrate, the test scenario generation can be automatically performed when the test range is inputted to all or selected items.

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The test scenarios generated by the test scenario editing unit 150 of the present embodiment may consist of one or two or more test cases, and two or more test cases may be grouped and tested. The test case or group of the present embodiment is stored in the storage means 180 and can be called and used when performing the automatic receiver test by the automatic test control means 170. [

The RF broadcast signal generating means 160 of the embodiment of the present invention shown in FIG. 9 generates the RF broadcast signal based on the edit items of the test scenario editing means 150 for the test broadcast stream generated by the information editing and multiplexing means 120 A modulation unit 161 for performing modulation, an up-converter 165 and an attenuator 168, and generates the test broadcast stream as a test RF broadcast signal.

The modulating unit 161 of the present embodiment may be composed of one or more modulators 163 and each of the modulators 163 may receive different broadcasting service signals in TS format, Each modulator performs modulation according to a transmission option set for the corresponding PLP, and the broadcast stream on which the modulation is performed is passed through the up-converter 165 and the attenuator 168 to the test RF And transmits a broadcast signal.

The RF broadcast signal generating means 160 sequentially generates the test RF broadcast signals corresponding to the types and the numbers of the edited and generated tests by the test scenario editing means 150 and sends them to the test receiver 300, And sufficient testing of the number of cases can be performed automatically.

The receiver control and analysis unit 170 of the present embodiment can remotely control the test receiver 300 through the communication medium through the communication medium to receive the test RF broadcast signal and to return the information data extracted from the test receiver 300 And an analysis unit 173 for analyzing the information data returned by the test receiver 300 and analyzing the status and performance of the test receiver 300. [

A communication medium for remote control of the receiver control and analysis unit 170 of the present embodiment is any one of a wired / wireless LAN, a WAN, the Internet, a mobile communication network, a PSTN, and a communication medium including a cable.

The analyzing means 173 of the present embodiment analyzes the information data returned by the test receiver 300 in real time and stores the results in the storing means 180. If sufficient tests for various combinations of the transmission options and the number of cases are performed automatically .

The automatic test control means 200 of this embodiment controls the operation of each part of the apparatus and the number of automated performance tests corresponding to the number of tests generated by the test scenario editing means 150 is transmitted to the test receiver 200. [ Lt; / RTI >

If the test person wishes to perform an automated test, the automatic test mode is selected (step 500).

The test performer selects the T2MI information file and the T2MI test stream from the storage means, and selects the test scenario to perform the test. That is, a test case or a test group in which a test item and a range are edited is selected (operation 501 and operation 502)

The automatic test control means 200 automatically calls a test case for the corresponding item and inputs the test case to the RF broadcast signal generation means 160. The T2MI broadcast stream is detected by the storage means 180, And inputs it to the generating means 160.

The RF broadcast signal generating means 160 generates a test RF broadcast signal corresponding to each test case under the control of the automatic test control means 200 and transmits the RF broadcast signal to the test receiver 300 Step 504).

The test receiver 300 receives the test RF broadcast signal according to the remote control of the receiver control and analysis means 170 and extracts the transmission option, the program and the system information, and transmits it to the receiver control and analysis means 170 through the communication medium (Step 505).

 The receiver control and analysis unit 170 compares the transmission option, program, and system information received from the test receiver 300 with those stored in the storage unit 180 to determine whether the test receiver 300 is operating normally, The performance analysis unit 300 may perform a performance analysis and store the result in the storage unit 180. [

The automatic test control means 200 repeatedly performs the test until all the tests in the test scenario or the test group are completed, and stores the test results in the storage means 180 (Step 506).

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The following is a concrete test apparatus for implementing the digital broadcasting signal receiver testing apparatus of the embodiment of the present invention.

1. Getting Started

Double-click the MPEG Studio icon on the desktop to start MPEG Studio.

: 현재 사용하는 표준(Standard)One.

: Currently used standard (Standard)

: 주파수2.

: frequency

* You can change the frequency by clicking the part where the frequency is indicated.

* It can be changed by using frequency table or by user's input.

: RF 출력 레벨3.

: RF output level

* You can change the level by clicking the part where the RF output level is displayed.

).* You can easily change by pressing the left and right buttons (

).

4.

* Indicates whether there is an error based on the ETR-290 standard.

* P1, P2, and P3 refer to Priority 1, 2, and 3, respectively.

* Green color: error free state

* Yellow color: An error has occurred in the past (means an error occurred before the current reference analyzed when analyzing the TS)

* Red color: An error has occurred at the time of analysis.

: T2MI file을 이용하여 T2 신호를 송출함.5.

: T2 signal is transmitted using T2MI file.

: T2 Mux를 사용할 수 있음(Single PLP, Multi PLP).6.

: T2 Mux can be used (Single PLP, Multi PLP).

: Mux Mode에서 모든 설정을 초기화 할 때 사용.7.

: Used to initialize all settings in Mux Mode.

: File 불러올때 사용8.

: Used to load a file

: TS로 저장할 때 사용9.

: Used when saving as TS

* File Name: Set file name and folder to save

Bitrate: Bitrate of the TS to be saved

* Save Partial Stream: When you save as TS, you specify the length of TS and save it.

* Stream Time: length of TS to save

* Start Time (Second): Set the start time of the stored TS

* End Time (Second): Set end point of stored TS

* File Size: Size of TS to be saved (automatically calculated)

* Include TMCC (ISDB-T only): Set to save TMCC information in ISDB-T

1. RF signal transmission

1. Start sending RF signal

button 을 누른다.*

Press the button.

* Once the RF signal is transmitted, the transmission timer will appear as shown below.

* Service configuration information of the transmitted signal is displayed.

2. Stop transmitting RF signals

button 을 누른다.*

Press the button.

* When the RF signal transmission is stopped, the timer shown above disappears.

3. Change frequency

부분을 클릭한다.* To change the frequency

Section.

There are two ways to use the frequency table and manually input the frequency.

* The frequency table is changed according to Bandwidth setting in L1 Configuration.

4. Change RF output level

* RF output level can be easily changed by using the following buttons.

,

,

* You can also change it manually.

부분을 클릭하여 수동으로 값을 입력하여 변경 한다.*

Click the part to manually change the value.

One. EPG Edit

3.1. MPEG TS UI

1. RF Parameter

* Show RF parameter setting for each standard.

2. Error

* It shows the error occurrence based on ETR-290.

3. Packet

* Represents services information per PID in TS.

* It is divided into 3 parts as shown below.

A. First Part

* T: Transfer (will be used in other functions)

* P: Display in PID with PCR clock

* S: Displayed in Scrambled PID

* PID

* Description

* Count: Packet count

* Bitrate

  B. Second part

* Interval

* Table ID

* Description

* Extension

* Version: Version Number

* Section #: Section number

* Item #: Item number of section

C. Third part

* Descriptor

4. EPG

* Represents EPG related information.

* It is divided into two parts as shown below.

  A. First Part

* Interval

* Table ID

* Description

* Extension

* Version: Version Number

* Section #: Section number

* Item #: Item number of section

  B. Second Part.

* Descriptor

C. Third Part

5. Service

* It shows PCR Interval and Accuracy for each service.

3.2. Common Use

3.2.1 Insert Section

* Select the type of section you want to add and select the Insert Section button.

* The types of sections that can be input differ depending on the selected standard.

- ATSC / Opencable: PAT, PMT, CAT, TSDT, MGT, VCT, RRT, EIT, ETT,

                    STT, DCCT, DCCSCT

- DVB: PAT, PMT, CAT, TSDT, NIT, BAT, SDT, EIT, TOT, TDT, RST

3.2.2 Delete Section

* Select the section you want to delete from the list and select the Delete Section button.

3.2.3 Insert Item

* Section is composed of information that is repeatedly included in Header information and Section, and it is a function to add information that is repeatedly included

- The section tab indicates header information

- Information added repeatedly to the right of the section tab appears consecutively

  (the name of the tab will vary depending on the section you select)

* Additional information will be added depending on the type of section selected.

[Example: Information on PSIP MGT]

* Select the section you want to edit in the PSI / SI list and then select the Insert Item button

3.2.4 Delete Item

* It is a function to delete repetitive information added to Section

* Items to be deleted will be deleted according to the type of section selected.

[Example: Information on PSIP MGT]

* Select the information you want to delete from the tab and then select the Delete Item button

You can not delete the section tab that displays header information. To delete a section, use the delete section button

3.2.5 Insert Descriptor

* The ability to add descriptor data to the section header and the iterative information added to the section

* Select the type of descriptor you want to add and select the Insert Desc button

- The associated data, including the section length due to the addition of the descriptor, is automatically calculated and reflected

* Depending on the descriptor, if you have repeated items in the descriptor, you can use the Insert Item and Delete Item buttons to add or delete recurring items

3.2.6 Delete Descriptor

* It is a function to delete descriptor data in repetitive information added to section header and section

Select the descriptor you want to delete from the list and click the Delete Desc button

The associated data, including the section length due to the deletion of the descriptor, is automatically calculated and reflected

3.3. PSIP

3.3.1 Master Guide Table (MGT)

* Information of PID, version number, length in byte of all PSIP tables except STT

* table type, table type pid, table type version number can be changed, and the number bytes value is calculated and set according to the change of the corresponding PSIP table

Valid values for table type, table type pid are in accordance with ATSC A / 65: 2013 standard (see Table 4.2 and Table 6.3 in ATSC A / 65: 2013)

3.3.2 VCT (Virtual Channel Table)

* Indicates the list of virtual channels included in TS

* The value of source id should be the same as the program number of the PMT of the corresponding virtual channel

3.3.3 RRT  (Rating Region Table)

* Indicates rating information

* If you change the value defined value, you can see the entry where the rating value can be entered.

[Example: If you change the value defined value from 1 to 2, the entry with the second rating appears at the bottom]

3.3.4 EIT  (Event Infomation  Table)

* Indicates event information. Event information is stored as service unit. To edit event information, first select the service tab

* Select the Service tab and select the EIT you want to edit from the list

3.3.5 ETT  (Extended Text Table)

* Represents extended text message information. Extended text message information is stored in units of service. To edit extended text message information, select the service tab first

• Select the Service tab and select the ETT you want to edit from the list

3.3.6 STT  (System Time Table)

* Represents time and date information

* If you adjust the time of STT, the time of all EIT is also adjusted. PSIP changes the version of the EIT in 3-hour increments. Therefore, if the changed time of the STT and the time of the selected TS exceed the 3-hour boundary, the version-changed MGT and EIT are added

3.3.7 DCCT  (Direct Channel Change Table)

* Indicates a virtual channel change requirement

3.3.8 DCCSCT  (DCC Selection Code Table)

* Genre code, genre criteria name and location information

3.3.9 Multiple String Structure Edit

* If you double-click the item of ATSC Multiple String data, you can see the UI where you can edit Multiple String as above

1. Rating Region Table

- rating_region_name_text

- dimension_name_text

- abbrev_rating_value_text

- rating_value_text

2. ETM Location

- title_text

3. Extended Text Table

 - Extended_Text_Message

4. DCC Selection Code Table

- selection_category_name_text

- dcc_state_location_code_text

- dcc_county_location_code_text

5. Content advisory descriptor

- rating_description_text

6. Extended Channel Name Descriptor

 - long_channel_name_text

7. Component name Descriptor

- component_name_string

8. DCC Departing Request Type Assignments

- dcc_departing_request_text

- dcc_arriving_request_text

* String and Segment can be added / deleted using Insert String / Delete String and Insert Segmant / Delete Segment buttons

One. Service Edit

4.1 Add Service

1. It is a method to create a new TS by adding Service in MPEG TS.

2. Explain how to add a service in the DVB-T standard as an example.

3. Load original TS in Mux Mode.

버튼을 눌러 Select Transport Stream 창을 연다.4.

Button to open the Select Transport Stream window.

5. Click the [Select] button to load the TS containing the service you want to add. Press the [Stop] button to stop the TS load and read operation.

6. Press the [Next] button.

7. Select the Service you want to add as shown below and press the [Select] button to turn it On to Use.

- Select All: Used to turn all services On

- Unselect All: When you want to turn all services On

- Select: To use only selected service [On]

- Unselect: When you want to turn off the selected service only [On].

8. Press the [Next] button.

9. You can change the ID of the service in the Chane ID window.

Select the Service you want to change, enter the ID you want to change into New ID, and press the [Change] button.

10. Select the EPG of the service you want to add.

11. To add an EPG, you must turn on the Use item of the EPG you want to add by pressing the [Select] button.

- Select All: To use all EPG Service ID [On]

- Unselect All: To turn off all EPG Service ID [On].

- Select: Used to select only the selected EPG Service ID [On].

- Unselect: To turn off the selected EPG Service ID [On].

12. Press the [Finish] button.

13. As shown in the figure below, we can confirm that the bitrate of the current TS has increased and [Service: 0x4024] has been added.

4.2 Deleting Service

* It is a way to create a new TS by deleting Service from MPEG TS.

* Load original TS in Mux Mode.

버튼을 눌러 Service를 삭제한다.* After selecting the service you want to delete

Press the button to delete the service.

4.3 ES Save / Load

1. It is a function to save and load video / audio ES data in MPEG TS in Service.

2. Select Video or Audio in one service as shown below to display ES information and save / load these ES data.

- [Save ES]: Save ES Data

- [Load ES]: Load ES Data

4.4 ES  Add service using data

1. It is a method to create a new TS by adding service by using ES Data in MPEG TS

버튼을 눌러 Service 창을 띄운다.2.

Press the button to open the Service window.

3. Enter the basic information of the service.

- Transport Stream ID: Set the TS ID.

- Service ID: Set the service ID.

- Service Type: Select between Digital Television / Digital Radio.

- Service Name: Set the name to use for Service.

- PMT PID: Set the PID value to use for PMT.

4. Set the Elementary Stream Type, Elementary Stream PID, and Include PCR, and then press the Insert button to add the service.

      - Elementary Stream Type: Specify the Type as shown below.

     - Elementary stream PID: Set the ES PID.

     - Include PCR: Used when sending PCR information to the set ES

5. The added service has section information but no actual ES data.

Load the same ES Data as ES Type set above in Video / Audio.

One. DVB-T2

] 5.1. Bypass Mode [

]

1. Mode change

로 * If you click Mux Mode while in Mux Mode

in

Is changed.

* Bypass Mode is used to analyze existing T2MI files or send them without modification.

2. Load the file

또는

을 눌러 T2MI file을 불러온다*

or

Press to bring up the T2MI file

3.

Configuring the UI

C

B

E

F

G

D

A

A. TS Length

   Click to set the TS transmission area.

   If you set Start and End points, you can send only the set interval.

B. TS Bitrate

C. TS File Name

D. L1 configuration

E. PLP (Single, Multi)

F. PLP configuration

G. Configuration information of MPEG TS file included in PLP

4. RF transmission

button을 눌러 송출을 시작한다*

Press button to start transmission

] 5.2. Mux Mode [

]

1. Mode change

로 변경된다.* If Bypass Mode is selected

.

* Mux Mode is used when user wants to generate test pattern by adjusting configuration of L1 and PLP.

5.3. L1 setting

1. Select the L1 tab

2. Band witdh: bandwidth of DVB-T2

3. Bandwidth extension: Whether to use bandwidth extension

4. Preamble format: T2 SISO / T2 Lite SISO

5. FFT size: 1K ~ 32K

6. Guard interval: 1/32 to 19/256

7. Pilot pattern: PP1 ~ PP8

8. Sub slice per frame: indicates the value of sub slice of PLP using data type 2. For example, if the PLP cell size is 81000 and the sub slice per frame is 108, then 81000/108 = 750, so the corresponding PLP is transmitted at intervals of 750 cells.

9. T2 version: 1.1.1 ~ 1.3.1

10. Input stream type: transport stream only

11. Number of T2 frame: number of T2-frames composing super frame

12. Number of data symbols: The number of data symbols. The number of P2 symbols + the number of data symbols should always be an even number. (The number of P2 symbols is determined by FFT size)

13. T2 frame duration (T): Transmission time of T2 frame (T unit)

14. T2 frame duration (ms): T2 frame transmission time (in units of 10 ^-6 s)

15. L1 post constellation: modulation of L1 post

16. L1 repetition flag: Whether L1 repetition is used

17. L1 extension flag: Whether to use L1 extension

18. Cell id: cell id

19. Network id: network id

20. T2 system id: T2 system id

21. FEF use: Whether to use Future Extension Field (FEF)

22. FEF type: FEF type

23. FEF length: FEF length

24. FEF interval: FEF interval. Number of T2 must be able to divide the value of the frame

25. FEF s1: FEF s1

26. FEF s2: FEF s2

5.4. Add / remove PLP

1. Add PLP

버튼을 선택한다. 다음과 같은 PLP 설정 창이 나타나는데,

항목을 선택하여 PLP 로 전송할 MPEG TS 파일을 선택한다.* Toolbar

Button. The following PLP setting window appears,

Select an item to select the MPEG TS file to be transferred to the PLP.

2. Delete PLP

버튼을 선택한다* After selecting the PLP you want to delete,

Select the button

]3. Adjust PLP bitrate [

]

* When selecting MPEG TS file in PLP setting, it automatically sets the number block max value that can transmit the MPEG TS file. With this function, MPEG TS files can be easily configured as single / multi PLP. If you want to change any PLP setting, you must turn this function off.

4.PLP Configuration Settings

* PLP bitrate: Indicates the maximum bitrate of the MPEG TS that can be transmitted in the selected configuration. If null packet deletion (NPD) is not used in the PLP, the PLP bitrate must be greater than the bitrate of the MPEG TS to be transmitted.

* PLP cell size: DVB-T2 cell size required for PLP transmission in selected configuration

* TDI cell size: Time De-Interleaver (TDI) of the receiver Memory size. The TDI cell size is 2 ¹⁹ + 2 ¹⁵ OFDM cells. When the common PLP is used, the sum of the sizes of the TDI cells used in the data PLP and the common PLP should not exceed 2 ¹⁹ + 2 ¹⁵ .

Design delay: The design delay of the PLP calculated by the selected configuration. Design delay is the time in T units until the first valid packet arrives after receiving P1 symbol of T2-frame.

* PLP Id: identifier of PLP

* PLP type

* Common: PLP that transmits data commonly used by PLPs having the same group id

* Data type 1: Setting to transmit PLP data without sub-slicing

* Data type 2: Setting to transmit PLP data using sub-slicing

* Group id: common When transmitting PLP, common Identifier for specifying PLP that shares data of PLP. If the data PLP and the common PLP have the same group ID, the corresponding data PLP must process the data of the common PLP and the data of the corresponding PLP

* Code rate: FEC code rate of PLP (1/2 to 5/6)

* Constellation: PLP moduration (QPSK ~ 256QAM)

* Rotation: whether to use constellation rotation

* FEC type: type of FEC block (16K LDPC / 64K LDPC)

* Mode: PLP Input Mode (Normal Mode / High Efficiency Mode)

* Number blocks max: Maximum FEC block number of PLP

* Inband A flag: whether to transmit inband A signal data

* Inband B flag: Whether the inband B signal data is transmitted

* ISSY: Whether to use issy (Input Stream Synchronization). If PLP mode is HEM (High Efficiency Mode), only long ISSY can be used if ISSY is used.

* Unuse: issy not include

* Short: 2 byte issy include

* Long: 3 byte issy include

* Null packet deleteion: Whether to use null packet deletion (NPD)

* When the first frame index: frame interval is 2 or more, that is, when the PLP data is transmitted at intervals of frame intervals rather than at all T2-frames, it indicates the index of the frame in which the transmission of the PLP starts at the superframe.

* Frame inteval: Indicates the period of T2-frame for transmitting PLP data when PLP data is transmitted at regular intervals without being transmitted to all T2-frames. The number of T2-frame of L1 must be divisible by frame interval value. For example, if the number of T2-frame of L1 is 6, there are four types of configurable frame intervals: 1, 2, 3, and 6. In this example, if the frame interval is 2, the frame index of the T2-frame that transmits the PLP is 0, 2, and 4. If the first frame index is 1, the PLP is transmitted when the frame index of the T2- do.

* Time IL type

* 0: If there is more than one TI-block (Time Interleaving block) in one T2-frame

* 1: When a plurality of T2-frames constitute one interleaving frame

* Time IL Length

* Time IL type = 0: Number of TI blocks

* Time IL type = 1: Number of T2-frames included in one interleaving frame

* ISCR bitrate: Birate by ISCR value of ISSY. When using Common PLP, all PLPs with the same group id must have the same ISCR bitrate value. When NPD is used, bitrate of valid packet is specified. When NPD is not used, it indicates bitrate remuxing of transmitted MPEG TS.

* DFL-0: When the PLP bitrate is greater than the ISCR bitrate, add a padding data burst when adding the padding data of the baseband frame. If the value of DFL (data field length) of the baseband frame is 0 Respectively. Set the DFL value to 0 for each block number that is set.

* CRC-8 error: Indicates any error in the CRC-8 value used in normal mode.

* 0: no CRC-8 error

* 1: all packet include CRC-8 error

* Else: CRC-8 error interval

* Inband A error: set inband A flag error

* Inband B error: set inband B flag error

- If the parameter setting value is wrong

* If the parameter value is incorrect (EX. Time IL length), the system message is shown as below.

*

Since the PLP Bitrate is smaller than the Bitrate of the TS, it means to increase the number blocks max.

*

Appears when the user enters an incorrect parameter value.

The user must enter a value between 0x01 and 0xFF for the time IL length value.

*

The value changed by the user is not wrong, but it means to change the value of Time IL length because PLP TDI memory value is small.

*

Appears when the user enters a wrong pilot pattern and must change to the correct pilot pattern value.

5.5. Custom  configuration Load / Save

1. Configuration Settings

Set the folder that stores the custom configuration (XML) and Test Pattern (MPEG TS) first. The user-defined configuration is stored in XML format, and each storage location is set as follows.

Select [Set System Configuration] from the [File] menu.

* Test Result Path: Folder where test result (XML) is saved when Auto Test is executed.

* PLP Config Path: Folder where user defined Test Configuration (XML) is stored. L1 and PLP configuration in XML format.

* Test Pattern (TS) Path: The folder where the MPEG TS file used to save / load the XML file that stores the user-defined configuration is located. The MPEG TS used in DTG Pattern and Custom Configuration must be in the folder specified here

* Random Config Path: Folder where Test Case of DVB-T2 Random Parameter Test is stored

* Random Pattern (TS) Path: Folder where TS is used for DVB-T2 Random Parameter Test. DVB-T2 Random Parameter Test is only available for TS in the folder.

2. Saving a Custom Configuration

버튼을 선택한다After setting the ID of the configuration you want to save, select [Save Configuration] from the [File] menu,

Select the button

Enter Configuration ID as below.

If the ID you entered already exists, you receive the following error message:

If you set an ID, it will be saved with the same name and the ID can not be duplicated.

3. Import a custom configuration file (XML)

버튼을 선택한다Select [Load Configuration] from the [File] menu, or

Select the button

A list of previously saved configurations appears as shown below.

* Identifier: ID of the user-defined test stored in the XML file

* File Path: Path of the custom configuration file

Select one from the list and press the OK button to load the corresponding configuration.

5.6. DTG  configuration summary

1. DTG400: dynamic M-PLP transmission configuratoin (default)

* Configuraiton to transmit 4 data PLPs and 1 common PLP using the same group id using MPEG TS file with 4 services

2. DTG401: DTG400 + High bitrate

* code rate: 5/6

* constellation: 256QAM

3. DTG402: DTG400 + Low bitrate

* code rate: 1/2

* constellation: QPSK

4. DTG403: Two group id

* FFT Size 8K

* Include FEF

* Group id 0 use data type 2

* Group id 1 use data type 2, frame interval 4

5. DTG404: DTG400 + Time IL type 1

6. DTG406: DTG403 + FFT Size 16K

7. DTG407: DTG406 + L1 extension

8. DTG409: DTG403 + bias balancing

9. DTG412: DTG400 + Inband B flag enable

10. DTG414: DTG403 + no FEF + group id 1 use data type 1

11. DTG416: DTG403 + group id 1 use data type 1

12. DTG417: DTG400 + MISO

13. DTG418: DTG400 + Normal Mode

5.7. Setting up M-PLP (Multi-PLP)

* The setting of M-PLP is based on a method (Static M-PLP) in which one TS file is transmitted using one PLP and a method (Dynamic M-PLP) in which one TS file is transmitted using two or more PLPs It can be used selectively.

* Static M-PLP is a method in which one TS file is used for one PLP, and setting of PLP is the same as setting of Single PLP.

* Dynamic M-PLP is a method of transmitting to different PLPs in service unit included in TS file. Data common to PLP for transmission of individual service is transmitted using common PLP. Common PLP transmits EPG (NIT, SDT, EIT) and commonly used PID.

1. Static M-PLP Configuration

* Add two or more PLPs and set up individual PLPs.

2. Dynamic M-PLP Configuration

* After selecting MPEG TS file, PLP should be added in service unit and common PLP should be added. If the MPEG TS file to be transmitted has four services, a maximum of four data PLPs and one common PLP are used.

* All PLPs with the same group id must have the same ISCR bitrate

* Addition of Data PLP: After adding a new PLP, the service of the MPEG TS file transmitted to the PLP is set to be transferred to the individual PLP

Use partial stream button

* Transport stream id: TSID of the partial stream. You must set it to have a unique value in the PLP that uses the same group id. (Usually set to have the same value as service id)

* Service count: the number of services in the partial stream (usually 1)

* Service id: service id included in partial stream

* Examples

* The selected MPEG TS file contains 4 services. In this case, it is set to transmit service with id = 1 using individual PLP

* Only the PIDs used in the selected service are included in the PLP, and the packets of the remaining PIDs are converted into Null packets.

* Data EPG information transmitted from PLP is transmitted only PAT, PMT, and SDT (actual).

* NIT, SDT (other) and EIT data are transmitted using common PLP

* PLP configuration

* Dynamic M-PLP transmission treats all packets except service selected in MPEG TS file as null packet, so NPD must be used for transmission efficiency. If NPD is used, ISSY must be used for synchronization of common PLP and data PLP at the receiver.

The number block max is set to a value smaller than the number block max for the selected MPEG TS. (adjust PLP bitrate is turned off)

* Add Common PLP

* Common PLP transmits data of NIT, SDT (other) and EIT, so it is recommended to use 16K LPDC for efficiency (16K LDPC is effective because the effective bitrate is low)

5.8 DVB-T2 Auto Test

The DVB-T2 standard provides three types of Auto Test.

The user can combine the parameters or combine the stored Xml file to create the test case directly and use it to easily test.

버튼을 클릭한다.From the File menu, click Auto Test, or from the toolbar

Click the button.

The following three types of Test items appear, and you can select one of them to proceed with the test.

5.8.1 DVB-T2 User Group Test

Used to automatically test two or more custom configurations.

In the Select Auto Test Type window, click the [DVB-T2 User Group Test] item.

The DVB-T2 User Group Test window appears as shown below. In this window, a test case is created and the test is performed using the created Test Case.

1. Create Test Case

In the DVB-T2 User Group Test window, press the Create button to display the Name / Test Count window.

The Xml files shown here are displayed by clicking [Set System Configuration] on the File Menu and the files in the folder set in [PLP config Path] are displayed.

* Select the Xml files you want.

* Click the Select button to set the [USE] item to [On].

* The name of the group is automatically generated, but the user can change it to any name.

* The created Group file is saved in the folder set in [PLP config Path].

- Select All: When you want to [On] all Xml files

- Unselect All: To turn all Xml files On

- Select: Used to select only the selected Xml file [On].

- Unselect: To deselect [On] only the selected Xml file.

2. Getting Started with Test

You can create a group with the Xml files you want to test and then run the automated test with the group you created.

Select the group you want to test from among the created groups as shown below and press the [Start] button on the right side to start the test.

* Pass / Fail button is used for test result. If you press [Pass] or [Fail] button, the next Xml file is passed.

* If you press [Pass] or [Fail] button, test time information and Pass / Fail judgment are recorded next to each Xml file.

* When the [Fail] or [Stop (fail)] button is pressed, a window for entering a memo appears. The user can place a brief note about the Fail decision here.

* The Service tab displays the service information sent from the configuration of the Xml file currently being tested.

* In the L1 tab, the information of the L1 signal is displayed in the setting of the Xml file currently being tested.

* In the PLP tab, the information of each PLP is displayed in the setting of the Xml file currently being tested.

* Test results are saved even after the program is finished.

* To reset the test result of the group, press the [Reset] button.

* The user can start the test from any Xml file, and the Xml file determined as Pass will be skipped.

*

Button Description

[Reset]: Initialize test result of Group test

[Create]: Create a group to test.

[Start]: Start the Group test.

[Stop / Pass]: Terminate group test (pass test of the last test)

[Stop / Fail]: Terminate Group test (Fail judgment of last test)

[Pass]: Register the current test result as Pass

[Fail]: Register the current test result as Fail

[Close]: Close group test window

5.8.2 DVB-T2 All Parameter Test

All Parameter Combination The Auto Test function combines the parameters of a predefined PLP to form a test case. The value of each parameter can be set in the range and the test result is saved.

In the Select Auto Test Type window, click the [DVB-T2 All Parameter Test] item.

DVB-T2 All Parameter Test window will appear as shown above. In this window, Test Case is created and test is performed using Test Case created.

1. Create Test Case

In the DVB-T2 All Parameter Test window, press the Create button to display the PLP window.

At this time, the user must complete one PLP setting in advance.

* Check the check box in front of each parameter item to decide whether to include the parameter in Test Case.

* Set the range of each parameter value.

* The left side should always be set smaller than the value of the right side item.

* Additional Block Count setting

- First column: how many more blocks to use than the minimum number of blocks

- Second column: Set how many blocks to use from the number set in the first column

- The third column: Step between the first and second set values

* Time IL Length setting

- First column: Time IL Length minimum setting

- Second column: Set the maximum value of Time IL Length

- The third column: Time IL Length Changing the value between the minimum and maximum values Step

* After completing all settings, press [Next] button.

* The name of the test case is automatically generated, but you can name it yourself.

* Pressing the Finish button displays the number of possible Test Cases within the range of the user defined parameter values in the user defined PLP settings in advance.

* Test Case is saved as * .Xml file, and the generated Test Case is stored in the folder set in [PLP config Path] as shown below.

2. Getting Started with Test

Automated tests can be performed with the test cases created.

Select the Test Case that you want to test among the Test Case created as shown below and press the [Start] button on the right side to start the test.

* Test result is pass / fail button, and if you press [Pass] or [Fail] button, it goes to next test case.

* If you press [Pass] or [Fail] button, test time information and Pass / Fail judgment are recorded beside each Test Case.

* When the [Fail] or [Stop (fail)] button is pressed, a window for entering a memo appears. The user can place a brief note about the Fail decision here.

* In the Service tab, the service information that is transmitted from the test case setting currently being tested is displayed.

* In the L1 tab, the information of the L1 signal is displayed in the setting of the Xml file currently being tested.

* In the PLP tab, the information of each PLP is displayed in the setting of the Xml file currently being tested.

* Test results are saved even after the program is finished.

* To reset the test result of the group, press the [Reset] button.

* You can save the test result in Excel format by pressing [Save XLS] button.

* If [Save Only Fail] is checked, only cases processed by Fail will be saved.

* The user can start the test from any Xml file, and the Xml file determined as Pass will be skipped.

*

Button Description

[Reset]: Initialize test result

[Create]: Create a new Test Case.

[Save XLS]: Save the test result as an Excel file.

[Start]: Start the test

[Stop / Pass]: Terminate the test (pass the final test)

[Stop / Fail]: Terminate the test (Fail judgment of the last test)

[Pass]: Register the current test result as Pass

[Fail]: Register the current test result as Fail

[Close]: Closes DVB-T2 All Parameter Test window

5.8.3 DVB-T2 Random Parameter Test

By adding combinations of L1 signal and PLP to existing PLP parameter combination, test case is created and auto test is supported. However, when the test case is created through the combination of these three methods, the number of cases is too large.

In the Select Auto Test Type window, click the [DVB-T2 Random Parameter Test] item.

DVB-T2 Random Parameter Test window will appear as shown below. Test case is created in this window and test is performed using Test case created.

1. Create Test Case

In the DVB-T2 Random Parameter Test window, press the [Create] button.

* Check the check box in front of each parameter item to decide whether to include the parameter in Test Case.

* Set the range of each parameter value.

* The left side should always be set smaller than the value of the right side item.

- L1 signal Parameter

- PLP Number and PLP configuration

* Additional Block Count setting

- First column: how many more blocks to use than the minimum number of blocks

- Second column: Set how many blocks to use from the number set in the first column

* Time IL Length setting

- First column: Time IL Length minimum setting

- Second column: Set the maximum value of Time IL Length

* After completing all settings, press [Next] button.

* In the Test Pattern (TS) window, you can create a test case by selecting the TS you want to use for the test.

* Click the Select button to set the [USE] item to [On].

* - Select All: Used to turn all TS files On

* - Unselect All: To turn all TS files On

* - Select: Used when you want to ON only selected TS file

* - Unselect: It is used to deselect [On] only the selected TS file

* The TS files shown here are displayed by clicking [Set System Configuration] on the File Menu. Files in the folder set in [Random Pattern (TS) Path] are displayed.

* Press the [Next] button to advance to the next step.

* You can specify the name and number of Test Case as shown below.

* The name of the test case is automatically generated, but you can name it yourself.

* Test Case is created as many times as user specified by Count.

* Test Case is saved as * .Xml file, and the generated Test Case is saved in the folder set in [Random Config Path] as shown below.

2. Getting Started with Test

Automated tests can be performed with the test cases created.

Select the Test Case that you want to test among the Test Case created as shown below and press the [Start] button on the right side to start the test.

* Test result is pass / fail button, and if you press [Pass] or [Fail] button, it goes to next test case.

* If you press [Pass] or [Fail] button, test time information and Pass / Fail judgment are recorded beside each Test Case.

* When the [Fail] or [Stop (fail)] button is pressed, a window for entering a memo appears. The user can place a brief note about the Fail decision here.

* In the Service tab, the service information that is transmitted from the test case setting currently being tested is displayed.

* In the L1 tab, the information of the L1 signal is displayed in the setting of the Xml file currently being tested.

* In the PLP tab, the information of each PLP is displayed in the setting of the Xml file currently being tested.

* Test results are saved even after the program is finished.

* To reset the test result of the group, press the [Reset] button.

* You can save the test result in Excel format by pressing [Save XLS] button.

* If [Save Only Fail] is checked, only cases processed by Fail will be saved.

* The user can start the test from any Xml file, and the Xml file determined as Pass will be skipped.

Button Description

[Reset]: Initialize test result

[Create]: Create a new Test Case.

[Save XLS]: Save the test result as an Excel file.

[Start]: Start the test

[Stop / Pass]: Terminate the test (pass the final test)

[Stop / Fail]: Terminate the test (Fail judgment of the last test)

[Pass]: Register the current test result as Pass

[Fail]: Register the current test result as Fail

[Close]: Closes DVB-T2 All Parameter Test window

5.9. Jitter configuration

1. Set up a jitter environment that can affect the video decoding of the receiver in the actual broadcasting environment

The value of the PLP item changed by the jitter setting is displayed in black as below

The setting of the jitter tests the receiver's stability against the receiver's time de-interleaver (TDI), de-jitter buffer (DJB) and other error settings

In the receiver buffer model shown in the figure, we test the receiver's stability against the receiver's time de-interleaver (TDI), de-jitter buffer (DJB) and other error settings

Jitter item Explanation (number blocks max / time IL length < 2) jitter The time IL length of the PLP indicates the number of interleaving of the fec block transmitted from the PLP. If the value of number blocks max is less than 2 when divided by time IL length, the specific fec block is not interleaving and should not go through TDI in the above figure. Test the normal operation of the receiver for these exception conditions Inbande flag and inband data unmatch jitter Inband signal data is transmitted to the padding area of the first baseband frame of the interleaving block. In the PLP configuration, set the inband flag and test the normal operation of the receiver against the exception condition when there is no data in the actual baseband frame ISCR bitrate less then PLP bitrate jitter The PLP bitrate calculated by the PLP setting must be greater than the TS bitrate transmitted by the PLP. In this case, the transmitted TS bitrate is converted to the PLP bitrate, and the converted bitrate is set to the ISCR bitrate. If the ISCR bitrate is arbitrarily set to be lower than the bitrate of the PLP, the normal operation of the receiver is tested Baseband frame data field length is 0 jitter If the ISCR bitrate is smaller than the PLP bitrate, the padding data is added by the bitrate difference. In this case, it is common to transmit padding data uniformly to all baseband frames. However, if a certain baseband frame generates a burst condition and there is a frame composed of only padding data with no valid data, the normal operation of the receiver is tested Normal mode CRC-8 error jitter Normal Mode Transmit the CRC-8 error code added to every packet in the transmission If there is an error in the area, test the normal operation of the receiver

2. (number blocks max / time IL length <2) jitter

* If the Block Number of the PLP is divided by the Time Interleaving Length value and a problem occurs that the specific block is not interleaved when the Block Number is less than 2, the Block Number is divided by the Time Interleaving Length and set to be less than 2,

* In the above example, when the number blocks max is 58, if the time interleaving length is set to 30, the condition of number blocks max / time IL length <2 occurs.

3. Inbande flag and inband data unmatch jitter

* Inband signaling is a method to transmit PLP configuration information to PLP baseband in addition to L1. If the Inband A flag is set while the Inband A data is not transmitted, error data is received when the receiver reads the Inband A data.

* In the above example, if Inband A flag is set and Inband A error is set, Inband A signaling data is not transmitted but only flag is set.

4. ISCR bitrate less then PLP bitrate jitter

* If the bit rate (PLP bitrate) of the video that can be transmitted in the corresponding PLP is inconsistent with the bitrate of the transmitted video according to the PLP setting, the receiver is checked to see whether it operates normally. The PLP bitrate is calculated by the FEC type, the code rate, and the block number of the PLP, and the ISCR bitrate is calculated by the ISCR value included in the baseband.

If the ISCR bitrate is less than the PLP bitrate, the value of the DFL (data field length) of the baseband is set smaller than the maximum value that can be set. In this case, the image should be processed based on the ISCR bitrate rather than the PLP bitrate.

5. Baseband frame data field length is 0 jitter

If the ISCR bitrate is less than the PLP bitrate, the DFL of the transmitting baseband frame is less than the configurable value. In this configuration, burst transmission is performed so that the DFL value of a specific baseband frame is 0, and the normal operation of the receiver is confirmed.

* In the above example, if you increase the number blocks max value and set up the burst transfer, the DFL value of the increased block is set to zero.

* DFL-0 This means that the value set in Error means that the DFL value is set to 0 for every 100 blocks.

6. Normal mode CRC-8 error jitter

* If error occurs in CRC-8 value in normal mode while there is no error in FEC block, check normal operation of receiver

* In the above example, when the transmission mode is set to normal mode and the value of CRC-8 error is set to 100, CRC-8 value is generated for every 100 packets.

If CRC-8 error value is 0, CRC-8 error is transmitted. If it is 1, CRC-8 error occurs in all packets. Otherwise, CRC-8 error occurs.

5.10. Corner Case Test

1. The Corner Case Test is a test that checks the performance of the DJB by sending successive TS packets to the DJB (De-jitter buffer) of the DVB-T2 receiver.

2. If you set the Multi-PLP configuration to use the transmission of common PLP and data PLP and select Use Corner Case Stream, you can configure Corner Case Configuration

* Select Common PLP to set the following items

* Common interval: interval of common slot

Number of eit: Number of EIT transmissions of common PLP

Number of chapter: number of repeat numbers

* Repeat number: Number of repetitive transmissions

* Select the Data PLP and set the following items

* Run length: Number of consecutive packets in PLP

5 Indonesia EWS

It is the function to add the EWS service which is used in Indonesia.

Users can easily add the EWS Service and test the EWS functionality.

6.1.EWS Add Service

1. Select the DVB-T standard.

2. Set up TS file to add EWS Service.

3. It supports Wizard function so that users can easily configure them.

을 누른다.4. To use the Wizard function

.

* Disaster Level: There are three levels.

Level 1: Awas (Note)

Level 2: Siaga (Standby)

Level 3: Waspada (alert)

* Authority: There are two issuing authority information.

Badan Metrorologi, Geophysics from Kimatologi

Badan Nasional Penanggulangan Bencana

* Disaster Code

Code 1: Gempa Bumi (earthquake)

Code 2: Tsunami (Tsunami)

Code 3: Letusan Gunung Berapi (Volcano eruption)

Code 4: Gerakan Tanah (Land Movement)

Code 5: Banjir (flood)

Code 6: Kekeringan (Drought)

Code 7: Kebakaran Hutan from Lahan (land and forest fire)

Code 8: Erosi (erosion)

Code 9: Pemukiman from Kebakaran Gedung (fire of building house)

Code 10: Gelombang Ekstrim dan Abrasi (erosion by extreme waves)

Code 11: Cuaca Ekstrim (extreme weather)

Code 12: Kagagalan Teknologi (technical failure)

Code 13: Epidemi dan Wabah Penyakit (Diseases such as infectious diseases)

Code 14: Konflik Sosial (social conflict)

Code 255: Cadangan (stockpile)

* Disaster Code Char: Description of Disaster Code

* Disaster Position: Location where the disaster occurred

* Disaster Date: Date when the Disaster occurred

* Disaster characteristic: Disaster Features

* Disaster Message: Message to Disaster

* Start Time: The time when the EWS Section is applied. That is, it is determined how much time is applied from the start time (in milliseconds)

* End Time: Time at which the EWS Section ends. That is, how much time to elapse after the start time (in milliseconds)

5. Select or type the content and press the Insert button.

6. Press the Next button.

* Location Code: Area code set in Setop

* Location Char: Enter character for Location

7. Enter the relevant item and press the Insert button to register.

* If you have multiple Disaster Codes, enter the Location Code and Location Char in each Disaster Code.

8. Click the Finish button to complete the setup.

When the setting is completed, it can be confirmed that the three sections are registered as shown in the above figure.

9. Saving TS

버튼을 눌러 TS로 저장한다.

Press button to save as TS.

* File Name: Set file name and folder to save

Bitrate: Bitrate of the TS to be saved

* Save Partial Stream: When you save as TS, you specify the length of TS and save it.

* Stream Time: length of TS to save

* Start Time (Second): Set the start time of the stored TS

* End Time (Second): Set end point of stored TS

* File Size: Size of TS to be saved (automatically calculated)

* Include TMCC (ISDB-T only): Set to save TMCC information in ISDB-T

*

6.2.EWS Service delivery

It is possible to confirm that the EWS service is received from the receiving terminal by transmitting the RF signal using the TS having the EWS service added thereto.

a. In the DVB-T standard, after adding EWS Service to TS, it is possible to transmit immediately without storing TS.

b. If you want to transmit from DVB-T2 standard, change to DVBT2 standard.

c. Add one PLP in Mux Mode.

또는

을 눌러 EWS Section이 추가된 TS file을 불러온다d.

or

To load the TS file with the EWS Section added

버튼을 눌러 RF 송출을 시작한다.e.

Press the button to start RF transmission.

Note.

For details on RF transmission, refer to 2. RF Transmission (P. 3).

f. When broadcasting is started, it can be confirmed that the EWS service indicated by Other is added to the broadcast service that the original TS had as shown in the figure below.

It is obvious that the scope of the present invention is not limited to the above embodiments but is defined by the scope of claims and includes various modifications and adaptations by those skilled in the art to the equivalents of the claims.

100 ... all-in-one test device for digital broadcasting signal receiver
110 ...... Source stream analyzing means
120 ...... Information editing and multiplexing means
130 ...... T2MI information editing and multiplexing means
150 ...... Test scenario editing means
160 ...... RF broadcast signal generating means
170 ...... Receiver control and analysis means
180 ...... storage means
200 ...... automatic test control means
300 ...... Test receiver

Claims (9)

The present invention relates to an all-in-one test apparatus for a digital broadcast signal receiver that performs an automatic test for a digital broadcast receiver based on a second-generation broadcast standard,
An original stream analyzing means for analyzing the original broadcast stream to extract broadcast signal transmission options, program information and system information;
If there is a change in the broadcast signal transmission option, the program information, or the system information using the broadcast signal transmission option extracted by the original stream analysis means, the program information, and the system information, Information editing and multiplexing means for editing and generating an information file and generating a test broadcast stream to which the change is applied by multiplexing;
Test scenario editing means for automatically generating a test scenario when a test range for a broadcast signal transmission option is set in correspondence with the information file edit item of the information editing and multiplexing means;
An RF broadcast signal generating means for generating a test RF broadcast signal based on the test broadcast stream based on the setting items of the test scenario editing means and transmitting the RF broadcast signal to the test receiver;
Receiver controlling and analyzing means for remotely controlling the test receiver to receive the test RF broadcast signal and extracting information data to perform analysis on the test receiver;
And an automatic test control means for controlling the components of the all-in-one test apparatus to perform an automatic test.
2. The method of claim 1, wherein the test broadcast stream is a broadcast stream of any one of DVB-T2, DVB-S2, DVB-C2, and ATSC- Device.
The method of claim 1, wherein the source broadcast stream is a broadcast stream of one of a first generation digital broadcasting standard, ATSC, DVB-T, DVB-S, DVB-C and ISDB- Wherein the broadcast signal may be a broadcast stream of one of DVB-T2, DVB-S2, DVB-C2, and ATSC-MH.
The all-in-one test apparatus for a digital broadcast signal receiver according to any one of claims 1 to 3,
Further comprising storage means for storing the original broadcast stream, the information file, and the test broadcast stream.
The present invention relates to an all-in-one test apparatus for a digital broadcast signal receiver that performs an automatic test for a digital broadcast receiver based on a second-generation broadcast standard,
Source stream analyzing means for analyzing a DVB-T2 based T2MI packet for the original broadcast stream;
Wherein the broadcast signal transmission option, program information, and system information analyzed by the original stream analysis means are used for the original broadcast stream, and when there is a change in the broadcast signal transmission option, the program information, or the system information, Information editing and multiplexing means for editing the T2MI packet information based on DVB-T2 by applying the change and generating a T2MI test stream by multiplexing;
Test scenario editing means for automatically generating a test scenario when a test range for a broadcast signal transmission option is set in correspondence with an edit item of the information editing and multiplexing means;
RF broadcast signal generating means for generating a test RF broadcast signal based on the test stream based on the setting items of the test scenario editing means and transmitting the RF broadcast signal to a test receiver;
Receiver control and analysis means for receiving the test RF broadcast signal by remote control of the test receiver and extracting the information data to perform analysis on the test receiver;
And an automatic test control means for controlling the components of the all-in-one test apparatus to perform an automatic test.
The present invention relates to an all-in-one test apparatus for a digital broadcast signal receiver that performs an automatic test for a digital broadcast receiver based on a second-generation broadcast standard,
An original stream analyzing means for analyzing a H.222 based TS packet and a DVB-T2 based T2MI packet with respect to a original broadcast stream;
If there is a change in the broadcast signal transmission option, the program information, or the system information using the broadcast signal transmission option, program information, and system information analyzed by the original stream analysis means, Information editing and multiplexing means for editing TS packet information based on H.222 and generating a TS test stream by multiplexing, editing T2MI packet information based on DVB-T2, and generating a T2MI test stream by multiplexing;
Test scenario editing means for automatically generating a test scenario when a test range for a broadcast signal transmission option is set in correspondence with an edit item of the information editing and multiplexing means;
An RF broadcast signal generating means for generating a test RF broadcast signal based on the TS test stream or the T2MI test stream based on the set items of the test scenario editing means and transmitting the RF broadcast signal to a test receiver;
Receiver controlling and analyzing means for remotely controlling the test receiver to receive the test RF broadcast signal and extracting information data to perform analysis on the test receiver;
And an automatic test control means for controlling the components of the all-in-one test apparatus to perform an automatic test.
The present invention relates to an all-in-one test apparatus for a digital broadcast signal receiver that performs an automatic test for a digital broadcast receiver based on a second-generation broadcast standard,
If there is a change in the broadcast signal transmission option, the program information, or the system information by using the broadcast signal transmission option of the original stream, program information, and system information, the change is applied to edit the information file Information editing and multiplexing means for generating a test broadcast stream to which the change is applied by multiplexing;
Test scenario editing means for automatically generating a test scenario when a test range for a broadcast signal transmission option is set in correspondence with the information file edit item of the information editing and multiplexing means;
An RF broadcast signal generating means for generating a test RF broadcast signal based on the test broadcast stream based on the setting items of the test scenario editing means and transmitting the RF broadcast signal to the test receiver;
Receiver controlling and analyzing means for remotely controlling the test receiver to receive the test RF broadcast signal and extracting information data to perform analysis on the test receiver;
And a control unit for controlling each part of the all-in-one test apparatus to perform an automatic test.
The method of any one of claims 1, 5, 6, and 7, wherein the information editing and multiplexing means is a TS editing and multiplexing means for editing TS packet configuration information based on H. 222 and generating a TS stream for testing by multiplexing And T2MI editing and multiplexing means for editing the T2MI packet configuration information based on the DVB-T2 and generating the T2MI stream for testing by multiplexing.
The test scenario editing apparatus according to any one of claims 1, 5, 6, and 7,
Means for setting an L1 signal parameter range of the DVB-T2 and means for setting a range of the DVB-T2 PLP parameter (PLP Parameter).

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