Outline of EWBS Module

Transcription

1 Outline of EWBS Module

2 Chapter 1 Introduction of EWBS 1

3 Configuration of EWBS Signal Emergency information is telecast in combination of TMCC signal and TS (Transport Stream). Information Source Encoding Part Transmission Route Encoding Part Video Audio Data EWBS Character Information Video Encoding Audio Encoding Data Encoding Data Encoding Multiplexing Part TS Remulti plexing Layer Processing Error Correction Modulation Interleave TMCC signal generating Frame Configuration OFDM Transmission wave Formation Information EWBS Area Information (PMT) EWBS Activation Flag (TMCC_B26) 2

4 What is TMCC Signal? Transmission and Multiplexing Configuration Control Parameters such as in which mode should the signal be demodulated? are described. EWBS Activation Flag is included for the purpose of power control. Carrier Number OFDM Symbol Number SP S 0,0 S 1,0 S 2,0 S 3,0 S 4,0 S 5,0 S 6,0 S 7,0 S 8,0 S 9,0 S 10,0 SP S 0,1 S 1,1 S 2,1 SP S 3,1 S 4,1 S 5,1 S 6,1 S 7,1 S 8,1 S 9,1 S 10,1 S S 0,2 S 1,2 S 2,2 S 3,2 S 4,2 S SP S S 7,2 S 8,2 S S S S 0,3 S 1,3 S 2,3 S 3,3 S 4,3 S S S 7,3 S 8,3 SP S S S SP S S S S S S S S S S S SP SP S 0,199 S 1,199 S 2,199 S 3,199 S 4,199 S 5,199 S 6,199 S 7,199 S 8,199 S 9,199 S10,199 SP S 0,200 S 1,200 S 2,200 SP S 3,200 S 4,200 S S S 7,200 S 8,200 S S S S 0,201 S 1,201 S 2,201 S 3,201 S 4,201 S 5,201 SP S 6,201 S 7,201 S 8,201 S 9,201 S10,201 S S 0,202 S 1,202 S 2,202 S 3,202 S 4,202 S S S 7,202 S 8,202 SP S S S SP S S S S S S S S S S S SP 11,1 5,2 6,2 9,2 10,2 11,2 5,3 6,3 9,3 10,3 11,3 0,4 1,4 2,4 3,4 4,4 5,4 6,4 7,4 8,4 9,4 10,4 5,200 6,200 9,200 10,200 11,200 11,201 5,202 6,202 9,202 10,202 11,202 0,203 1,203 2,203 3,203 4,203 5,203 6,203 7,203 8,203 9,203 10,203 TMCC S S S S S S S S S S 95,0 95,1 95,2 95,3 95,4 95,199 95,200 95,201 95,202 95,203 TMCC Frequency OFDM Segment Configuration 3

5 What is TS Signal? Transport Stream Broadcasting contents such as video, audio, etc., as well as broadcasting information such as datacasting, emergency warning, etc. are multiplexed into the TS signal. In EWBS, emergency warning information is distributed by using PMT and character superimpose packets. Video Video PAT Audio Video PMT DATA Video EIT Audio Video Video DATA TOT Video 188Byte TS is something like a ship container, carrying video, audio, program distribution information, etc. Compressed video, audio, contents for datacasting, etc. are divided into pieces; and they are transmitted serially in the TS packets of 188 byte each. An ID number, called PID, is allocated to each of the packets; in a way that what sort of information is included in each of the containers can be identified. 4

6 PAT Program Association Table (PID = 0 x 0000) PID of PMT is written in. The number of PMT is the same as that of services provided. PMT Program Map Table (PID = Described in PAT.) PID of the name of program, video, audio, etc. as well as the format of video, audio, etc. are written in. Area code for EWBS and PID of character superimpose packets are also written into the PMT. PAT PMT (1) PMT(1) PID PMT(2) PID PMT(3) PID Program name Video PID Video format Audio PID Audio format Data PID EWBS Area EWBS Text PID PMT (2) VIDEO stream AUDIO stream DATA stream EWBS Text stream Video Audio Data EWBS Text EWBS Area 5

7 Composition of EWBS Receivers Antenna RF -> IF FFT Carrier Demodulation TS TS Analyzing Part Emergency Information TMCC TMCC TMCC signal is extracted from the Tuner. Once TMCC_B26 is changed to "1", TS Analyzing Part should be activated for TS analysis. Targeted area of emergency warning is detected from PMT in the TS packet. Contents of warning are extracted from the character superimpose packet of TSP. 6

8 Chapter 2 Hardware of EWBS module 7

9 EWBS Module Newly developed module for EWBS reception, to be incorporated into simplified EWBS receiver or TV receivers. 40mm 25mm 8

10 Features of EWBS Module Size: 40mm X 25mm SMD/DIP(2mm pitch) Power 3.3V Single power supply Power consumption: 190mW in standby, 248mW when receiving EWBS Applicable frequency: UHF 470MHz ~ 806MHz Bandwidth: 6MHz/8MHz 1-seg Reception: Approx. 13dB higher than Full-seg reception When area code is set, emergency warning is received only in the pre-set areas. When area code is not set, emergency warning is emitted unconditionally. Output of EWBS reception flag Emergency information is emitted from serial port. Standard specification: UART I2C, SPI specifications also available. 9

11 Functional Flow of EWBS Module Receiving program of preset channel TMCC(B26) = 1 No Yes Activate TS Analyzing Part Searching character packets Check area code Decoding character data Make output of EWBS receiving flag Make output of character information 10

12 Wide Applications of EWBS Module Public Electronic Signage Small Display for home use Incorporation into wrist watches TV Receivers, Set-top Boxes Accessories measuring instrument of reception sensitivity 11

13 Chapter 3 Software of EWBS module 12

14 Commands of EWBS Module Setting UART 115,200bps, 8bit, 1 stop bit, no parity, no flow control Command Format Command packet format (Host Module) STX 0x02 TYPE 0x1D Header Body Trailer Cmd code Chk SUM Data Size Response packet format (module -> host) STX 0x02 ACK NAK Data EXT 0x03 Header Body Trailer Cmd code Chk SUM Data Size Data EXT 0x03 ChkSUM : (STX) + (TYPE) + (CMD) + (ChkSUM) + (DataSize) + (DATA1) + (DATA2) (EXT) = 0x****00 13

15 List of Commands CMD_GET_EWBS_INFO (0x11) Confirm the version of EWBS module CMD_GET_EWBS_STATUS (0x26) Obtain broadcasting conditions of EWBS signal CMD_GET_EWBS_RSSI (0x27) Obtain receiving conditions of EWBS signal CMD_GET_EWBS_TXT (0x28) Obtain character data of EWBS CMD_GET_AREA_CODE (0x24) obtain channel and area code information being monitored CMD_SET_AREA_CODE (0x25) Set channel and area code of the channel to be monitored 14

16 CMD_GET_EWBS_INFO Confirm the version of Module Command packet format (Host Module) STX 0x02 TYPE 0x1D Header Body Trailer Cmd 0x11 SUM 0xCD Response packet format (Module -> host) STX 0x02 ACK 0x06 Size 0x00 Data None EXT 0x03 Header Body Trailer Cmd 0x11 Data : EWBS_mod ver SUM 0xF5 Size 0x0B Data 0x45 0x57 0x42 0x53 0x5F 0x6D 0x6F 0x64 0x01 0x03 0x10 EXT 0x03 15

17 CMD_GET_EWBS_STATUS Obtain receiving conditions of EWBS signal Command packet format (Host Module) STX 0x02 TYPE 0x1D Header Body Trailer Cmd 0x26 SUM 0xB8 Size 0x00 Data None EXT 0x03 Response packet format (Module -> host) STX 0x02 ACK 0x06 Header Body Trailer Cmd 0x26 SUM 0xB4 Size 0x01 Data 0x03 Receiving Data = 0x03 EWBS Signal, and play out alert sound. EXT 0x03 16

18 Flow of Emergency Signal Reception EWBS Module EWBS Reception Command Response [EWBS_out] H CMD_GET_EWBS_STATUS (status) Host CPU EWBS Status Inquiry status_bit0 == 1 No Yes Completion of text reception Yes No CMD_GET_EWBS_TEXT (text_data_size=0) (text_data_size + Character_code) Obtain character information text_data_size=0 Yes No End of EWBS [EWBS_out] L Display of character data End of Alarm Sound Switching off of character data indication 17

19 Chapter 3 Applied example of EWBS module 18

20 Public Electronic Signage PC Normally displaying information, ads, time, etc. Upon receiving EWBS, the display is switched to warning information. LAN Control Unit + UART USB LAN LED display Speaker Memory card insert HDMI LCD Panel Media for information, ads, etc. 19

21 Example of Control Circuit of Public Electronic Signage PC LED Display LAN usd POWER (3.3V) Antenna EWBS module GPIO EWBS_DET GPIO SIREN UART command Beagle Bone Black CPU Board UART RS-232C LED Display HDMI USB LED Display USB Speaker LCD Panel 20

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23 List of Parts and Components Item Reference Part Maker Quantity Comment 1 C1,C3,C7,C9,C10,C12,C13, C14,C15,C16 GRM188R71C104KA01D MURATA uF 2 C2,C8,C11 GRM188R61C105KA93D MURATA 3 1uF 3 C4,C5,C6 GRM188R61A106KE69D MURATA 3 10uF 4 FB2,FB1 BLM21PG221SN1D MURATA 2 BLM21PG221SN1D 5 FB3 BLM18KG601SN1D MURATA 1 BLM18KG601SN1D 6 J1 PJ-102A CUI Inc. 1 PWR JACK 7 J Molex J3 LD09P33E4GV00LF Amphenol FCI 1 DB9 9 R1 MCR03ERTJ104 Rohm 1 100k 10 R2,R3,R6,R7,R8 MCR03ERTJ220 Rohm R4,R5,R9 MCR03ERTJ103 Rohm 3 10k 12 U1 LMS33460MG/NOPB TI 1 LMS33460MG/NOPB 13 U2 EWBSmodule Century 1 EWBSmodule 14 U3 ST3232CDR Stmicro 1 ST3232CDR 15 Z1 BeagleBoneBlack GHI Electronics 1 Beagle Bone Black 22

24 Example of Small Display for home use Switch GPIO Antenna EWBS module POWER (3.3V) GPIO EWBS_DET GPIO SIREN UART command CPU I2C TEXT GIPO DAC SOUND Character Display POWER 23

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26 List of Parts and Components Item Reference Part Maker Quantity Comment 1 CN LF Amphenol FCI 1 microusb 2 CN2 PRPC005SAAN-RC Sullins 1 CON5 3 C1,C3,C8,C9,C10,C11,C12, C13,C14,C16,C17,C18,C19 GRM188R71C104KA01D MURATA uF 4 C2 GRM188R61C105KA93D MURATA 1 1uF 5 C4,C5,C6,C7,C15,C20,C21, C22 GRM188R61A106KE69D MURATA 8 10uF 6 D1 GSE6V8UNX5F GLOBALTECH 1 GSE6V8UNX5F 7 D2,D3 RB050L-40 Rohm 2 RB050L-40 8 D4 RB521S-30TE61 Rohm 1 RB521S-30TE61 9 FB2,FB1 BLM21PG221SN1D MURATA 2 BLM21PG221SN1D 10 FB3,FB4,FB5,FB6 BLM18KG601SN1D MURATA 4 BLM18KG601SN1D 11 J Molex J2 PJ-102A CUI Inc. 1 PWR JACK 13 J3 MJ-3536N CUI Inc. 1 PHONE JACK 14 R1,R2,R5,R6,R7,R9,R10 MCR03ERTJ220 Rohm R3,R4,R8 MCR03ERTJ103 Rohm 3 10k 16 R11,R17 MCR03ERTJ104 Rohm 2 100k 17 R12,R13,R14,R15,R18,R19 MCR03ERTJ472 Rohm 6 4.7k 18 R16 1 R* 19 R20 MCR03ERTJ221 Rohm R21,R24 MCR03ERTJ102 Rohm 2 1k 21 R22,R25 MCR03ERTJ151 Rohm R24,R23 MCR03ERTJ473 Rohm 2 47k 23 SW1 OS102011MS2QN1 C&K 1 Slide Switch 24 SW2,SW3,SW TE Connectivity 3 Tactile Switches 25 U1 EWBS module Century 1 EWBSmodule 26 U2 STM32F072C8T6 STmicro 1 STM32F072C8T6 27 U3 GS1117Y33F GLOBALTECH 1 GS1117Y33F 28 U4 LMS33460MG/NOPB TI 1 LMS33460MG/NOPB 29 U5,U6 SN74LVC1G04DCKR TI 2 SN74LVC1G04DCKR 30 U7 NJM2737V JRC 1 NJM2737V 31 VR1 3314H Bourns 1 20k(v) 32 X1 CSTCE8M00G55-R0 MURATA 1 CSTCE8M00G55-R0 33 Y1 PKM17EPP-2002-B0 MURATA 1 PKM17EPP-2002-B0 34 ZD1 ACM1602NI Xiamen Zettler 1 LCD 16x2 Character Display 25

27 Evaluation of Reliability Derating evaluation of parts makes it possible to increase the reliability of the module. Standard of Capacitors Maximum Temperature: Rated maximum temperature minus 20 degrees Celsius or below. Consideration of self heating value and ambient temperature required. Voltage: Rated voltage x 0.6 or below Resistance Standard Power: Rated power x 0.6 or below Voltage: Rated voltage x 0.8 or below Rated Voltage = (rated power x resistance value) Inductor Standard Maximum Temperature: : Rated maximum temperature minus 20 degrees Celsius or below. Consideration of self heating value and ambient temperature required. 26

28 Semiconductors Power Voltage, Terminal Input Voltage: Within rated values Maximum Output Current: Rated Current x 0.8 or below Maximum junction temperature: Rating upper temperature minus 20 degrees Celsius or below. Consideration of self heating value and ambient temperature required. Connectors Surface Temperature: Rated Maximum Temperature minus 20 degrees Celsius or below. Consideration of self heating value and ambient temperature required. Maximum Voltage: Rated Voltage x 0.5 or below. *The evaluation standards here are for reference only. Standards of acceptance, as well as items to be checked are to be determined by the party concerned. 27

29 Voltage-Rated Derating rate Derating Voltage Operating Voltage Temperature-Rated Derating Temperature Operating Maximum Temperature Judgment Capacitors Capacitor Standard Maximum Temperature: Rated Maximum Temperature minus 20 degrees Celsius or below. Consideration of self heating value and ambient temperature required. Voltage: Rated Voltage x 0.6 or below Voltage Temperature Reference Type Part Number Manufacturer V % V V C1 Ceramic(chip) GRM188R71C104KA01D MURATA OK C2 Ceramic(chip) GRM188R61C105KA93D MURATA OK C3 Ceramic(chip) GRM188R71C104KA01D MURATA OK C4 Ceramic(chip) GRM188R61A106KE69D MURATA OK C5 Ceramic(chip) GRM188R61A106KE69D MURATA OK 28

30 Resistance Power Derating Power Operating Voltage Operating Current Operating Power Calculated Rating Voltage Voltage-Rated Derating Voltage Operating Voltage Condition Resistors Resistor Standard Power: Rated Power x 0.6 or below Voltage: Rated Voltage = (Rated Power x Resistance Value) Power Voltage Reference Type Part Number Manufacturer Ω W W V ma W V V V V R1 Thick Film MCR03ERTJ220 Rohm OK R3 Thick Film MCR03ERTJ103 Rohm 10, OK R12 Thick Film MCR03ERTJ472 Rohm 4, OK R20 Thick Film MCR03ERTJ103 Rohm OK R25 Thick Film MCR03ERTJ103 Rohm 1, OK 29

31 Temperature-Rated Derating Temperature Operating Ambient Temperature Temperature Rise Current-Rated Operating Current operating temperature rise Operating temperature Voltage - Rated Derating Voltage Operating Voltage Condition Inductors, Coils, Ferrite Beads Inductor Standard Maximum Temperature: Rated Maximum Temperature minus 20 degrees Celsius or below. Consideration of self heating value and ambient temperature required. Temperature Voltage Reference Type Part Number Manufacturer ma ma V V V FB1 FERRITE BEAD BLM21PG221SN1D MURATA OK FB2 FERRITE BEAD BLM21PG221SN1D MURATA OK FB3 FERRITE BEAD BLM18KG601SN1D MURATA OK FB4 FERRITE BEAD BLM18KG601SN1D MURATA OK FB5 FERRITE BEAD BLM18KG601SN1D MURATA OK 30

32 Incorporation into STB Character information can be superimposed regardless of video receiving channel. HDMI Antenna Distributor Alert sound activated via STB. EWBS module character information Character information of power control is displayed by HDMI CEC function. Siren TV Power control Tuner Module Screen controller HDMI I/F HDMI out 31

33 Incorporation into TV receivers Character information can be superimposed for automatic start-up, regardless video receiving channel. Antenna Distributor PS control EWBS module Power Supply (EWBS_out) character information Tuner Module Screen controller Display Panel LCD controller 32