Marine AIS System Overview
Contents
1. Marine Al Automatic I dentification System Product Information Pack CMX910 CMX7032 42 Slide 1 2009 Marine AIS Automatic Information System Introduction The Automatic Identification System AIS as specified by the International Marine Organisation is a ship and shore based broadcast system operating in the VHF maritime band A radio aid to navigation and safety an AIS transponder repetitively broadcasts its host vessel s positional and status information This enables other similarly equipped vessels in the vicinity to receive decode and display that information along with information from other navigational systems radar GPS depth recorders to provide a comprehensive picture of the maritime traffic in the local area Using the transfer of formatted wireless data an AIS system employs two simultaneous Rx channels and single frequency switched Tx channel AIS transactions employ GMSK modulation with a back up DSC channel using FSK modulation for system control and management An AIS network normally operates in an autonomous continuous mode and adapts to transponders moving into and out of range Using Self Organising Time Division Multiple Access SOTDMA technology AIS messages occupy over air time slots that are accurately synchronized to either a GNSS or a local timebase An AIS network can handle over 2000 reports per minute using individual 26 6ms time slots Each network d2. PE0401 CMX704x Evaluation Kit PEO0002 Universal Interface Board CMX910 CMX7032 42 2 EU cu Microcircuits Slide 32 COMMUNICATION SEMICONDUCTORS Class Transponder Dual Channel Rx Only DE 0321 demonstrator AIS class B transceiver demonstrator 7032 7042F1 1 x Designed to meet IEC62287 2W Ix operation Serial bus C BUS to host Schematics and BOM available Dual channel AIS receiver via 7032FI 2 x Fully operational autonomous unit RS232 NMEA output CMX910 CMX7032 42 2 EU cu Microcircuits Slide 33 COMMUNICATION SEMICONDUCTORS CMX7032 7042 Limiter Discriminator Al S Processors Deliverables Products CMX7032 Marine AIS processor including two RF synthesisers 703201 64 pin VQFN package CMX7032L9 64 pin LQFP package 7042 Marine AIS data processor 7042 8 48 pin VQFN package 704214 48 LQFP package Evaluation Demonstration PEO0201 PE0401 PE0002 DE70321 Technical Data Website www cmlmicro com Product overview Datasheet Innovations CML Technical Portal MyCML Combined User Manual and Datasheet Function Image download Application notes and FAQs CMX910 CMX7032 42 2 EU cu Microcircuits Slide 34 COMMUNICATION SEMICONDUCTORS CML Marine S Products Resources Information on CML s website www cmlmicro com
3. AIS and DSC AlS and DSC 12 5 and 25 kHz and Q and Q 5 x 10 bit Mux ADCs 5 x 10 bit DACs None None C BUS and Expansion Port SOTDMA CSTDMA Configuration File 64 lead LQFP L9 64 lead VQFN Q1 EV9100 EvkKit CMX7032 GMSK and 5 B AIS Burst and Raw HDLC and NRZI Sample 2 System Clocks AIS and DSC AIS 25kHz Differential Limiter Discriminator Two Point Modulation and Q 4 x 10 bit Mux ADCs 4 x 10 bit DACs 2 x System Clocks 2 x Individual 100 to 600 MHz C BUS SOTDMA CSTDMA Function Image 3 0to 3 6 V 64 lead LQFP L9 64 lead VQFN Q1 PEO201 EvKit PEO001 Interface Card CMX7042 GMSK and FSK B AIS Burst and Raw HDLC and NRZI Sample 2 x System Clocks AIS and DSC AIS 25kHz Differential Limiter Discriminator Two Point Modulation land Q 4 x 10 bit Mux ADCs 4 x 10 bit DACs 2 x System Clocks None C BUS SOTDMA CSTDMA Function Image 48 lead LQFP L4 48 lead VOFN Q3 PEO0401 Evkit PEOOO1 Interface Card EU cu Microcircuits COMMUNICATION SEMICONDUCTORS CMX910 and CMX7032 CMX7042 AI S Processors The CML edge Reduced component count removing Upto 3 DSPs DSP Memory SDRAM Flash 2 ADC for Rx Channels 1 DAC for Tx No Glue Logic and or FPGA required for serial bus expansion and connection of multiple ADC DAC DSP Auxiliary ADC and DAC Op amps to drive RF a
4. Al S System Overview AIS Rx only units Large market potential Ideally suited to the leisure craft and hobby markets Not constrained by AIS class A and B Window of opportunity prior to Class B being mandatory Requires only Rx channel reception Single or dual Rx AIS 9600 baud GMSK Market drivers Very low cost Small size Lower power consumption Reduced design complexity Very large potential market size 044 044 44 044 044 d CETTE sven Slide 9 Marine Al S System Overview AIS Aids To Navigation AlS Tx only application Transmitting exact position of a bouy Market drivers Very low cost Small size Lower power consumption Reduced design complexity SU em Microcircuits Slide 10 COMMUNICATION SEMICONDUCTORS Marine Al S System Overview AlS SART EPIRB Emerging standards for AIS SART and AIS EPIRB AIS SART Search and Rescue Transponder AIS signal is used to pin point its position to local crafts or emergency services 044 AlS EPIRB Emergency Position Indicating Radio Beacon An extra radio beacon is included to signal its position to satellites to alert the emergency services Also includes an AIS SART function to E direct emergency services when they are in AIS range EU cu Microcircuits Slide 11 COMMUNICATION SEMICONDUCTORS
5. Memory 044 10 bit ADC Multiplexer CMX910 CMX7032 42 x z 2 EU cu Microcircuits Slide 20 COMMUNICATION SEMICONDUCTORS CMX910 AI S Processor with 1 Q I nterface Expansion port Typical Applications Select outputs to enable peripherals PLL Rx1 PLL Rx2 gt pata out PLL Q receiver Q receiver Rx2 Serial Bus Registers and Control Tx PLL Timed enable outputs iom HF Rx2 x3 Interface Rx Data _ q Rx Detect 1 1 Mute UL p CMX910 CMX7032 42 Slide 21 CMX910 AIS Processor with 1 Q Interface The l Q advantage Q demodulators generally cost more than limiter discriminator ICs but the 1 9 approach has the overall advantage Accurate Tx modulation without using two point modulation High performance phase linear 2nd IF digital filters for both 12 5kHz and 25kHz modes are in the CMX910 to avoid using tricky and very expensive external discrete filters Integrated carrier slot busy detect needed for Class B CS TDMA mode 4 Supports both Tx and Rx for both AIS and DSC signal types CMX910 automatically trims for Q demodulator errors CMX910 7032 42 x z 2 SU em Microcircuits Slide 22 COMMUNICATION SEMICONDUCTORS CMX910 AI S Processor with 1 Q Interface The CMX910 advantage 4 Utilising the CMX910
6. and other large vessels Uses SOTDMA Self Organising Time Division Multiple Access Requires 3 parallel receivers and one transmitter Rx Two AIS 9600baud GMSK and DSC 1200baud FSK x Single Tx switches between AIS channels 1 and 2 Relays detailed vessel location and status information Transmission rate varies with vessel soeed every 10 seconds lt 14 knots High performance requirements Higher Tx power Longer range Faster data update rate 044 044 SU em Microcircuits Slide 7 COMMUNICATION SEMICONDUCTORS Marine Al S System Overview AlS class B AIS Class B is not currently mandatory but moving in this direction due to the safety security advantages Uses CSTDMA Carrier Sensing Time Division Multiple Access SOTDMA variety of the standard is scheduled for release Hequires two parallel receivers and one transmitter Rx One for AIS 9600 baud GMSK the other shared by AIS 9600 baud GMSK and DSC 1200 baud FSK Rx Single Tx switching between AIS channel 1 and 2 Vessel location and minimal status information relayed Heporting rate every 30 seconds 14 knots Market drivers against AIS Class A Lower cost Smaller size Lower power consumption Reduced design complexity Larger potential market size EU cu Microcircuits 044 e CS Slide 8 COMMUNICATION SEMICONDUCTORS Marine
7. e Overview e Datasheet e Evaluation kit Register to download datasheets Sign up to get product update mailings CML Microcircuits UJ UK Ltd COMMUNICATION SEMICONDUCTORS fmICML Microcircuits USA Inc COMMUNICATION SEMICONDUCTORS CML Microcircuits A Singapore Pte Ltd COMMUNICATION SEMICONDUCTORS Oval Park Langford Maldon Essex CM9 6WG England Tel 44 0 1621 875500 Fax 44 0 1621 875600 Sales sales cmlmicro com Technical Support techsupport cmlmicro com 465 Corporate Square Drive Winston Salem NC 27105 USA Tel 1 336 744 5050 800 638 5577 Fax 1 336 744 5054 Sales us sales cmlmicro com Technical Support us techsupport cmlimicro com No 2 Kallang Pudding Road 09 to 05 06 Mactech Industrial Building Singapore 349307 Tel 65 6745 0426 Fax 65 6745 2917 Sales sg sales cmlmicro com Technical Support sg techsupport cmlimicro com LED EEE 1 CMX910 CMX7032 42 2 _ EU cu Microcircuits Slide 35 COMMUNICATION SEMICONDUCTORS
8. in an application simplifies the overall system design by eliminating wo AIS Rx data demodulators One AIS Tx data modulator DSC Tx Rx data modulator demodulator One or more busy UCs low level AIS protocol engines The need for more than one RF reference oscillator Tricky discrete AlS IF filters Tricky Rx path calibration Tricky balance of Tx two point modulation A host of auxiliary ADCs and DACs Fast PA power control DAC and its sequencer The complexity of user developed hardware and software to reliably and accurately perform slot timed actions CMX910 CMX7032 42 x z 2 SU em Microcircuits Slide 23 COMMUNICATION SEMICONDUCTORS CMX910 AI S Processor with 1 Interface Deliverables Products 910 Marine AIS processor with and Q RF interface CMX910Q1 64 pin VQFN package CMX910L9 64 pin LQFP package Technical Data CML Website www cmlmicro com Product overview Datasheet Innovations CML Technical Portal MyCML Configuration file m F a idi t Evaluation Support EV9100 evaluation kit EU cu Microcircuits Slide 24 COMMUNICATION SEMICONDUCTORS CMX7032 CMX7042 AIS processors for Limiter Discriminator based Rx RF systems Product Summary Slide 25 June 2009 CMX7032 7042 Limiter Discriminator Al S Processors Product Features Designed for use in Class B AlS units utilising Limite
9. Marine Al S System Overview Market evolution growth Leisure craft AIS SART EPIR pow Market Quantity Aids To Nawgation EU cu Microcircuits Slide 12 COMMUNICATION SEMICONDUCTORS Marine Al S System Overview CML s AIS processors AlS Class A AlS Class B AlS Rx only Transponder Transponder AToN SART EPIRB AIS RF Systems RF Systems Rx Limiter Discriminator Rx Tx Two Point Tx CMX7032 CMX7042 SU em Microcircuits Slide 13 CMX910 COMMUNICATION SEMICONDUCTORS CML s S Processors Product Summary UL y CMX910 CMX7032 42 AIS IC Product Selector Modulation AIS Support On Chip 5 Data Handling Modes On chip AlS Data Formatting AIS Signal Timing Peripheral Timing Rx Modes Tx Modes RF Channel Bandwidth Rx Interface Tx Interface Auxiliary ADCs and DACs Auxiliary System Clocks RF oynthesisers Control Interface A S System Format Compatibility Device Configuration via Supply Requirements Packages Evaluation Slide 14 CMX910 GMSK and FSK A and B AIS Burst and Raw HDLC and slot and Sample Sequenced timed control of external circuits
10. ard AIS was originally defined for SOLAS Safety Of Life At Sea vessels and large ships but it is also applied to security applications Mandatory use by international treaty on SOLAS vessels and other large ships above a specified tonnage Local regulations may apply to smaller vessels International standards apply The safety security aspect Is driving the use into smaller vessels and ultimately down to leisure craft level CMX910 CMX7032 42 x z 2 SU em Microcircuits Slide 5 COMMUNICATION SEMICONDUCTORS Marine Al S System Overview AIS Automatic Identification System Wireless real time network that identifies ships their location heading status and other info even when out of sight Aids navigation collision avoidance and support for traffic management and surveillance systems GNSS receiver provides location etc for the AIS terminal wo standards are fully released AlS Class A and AlS Class Gives more detailed information that complements radar Compatible with common graphic and text displays Self synchronising TDMA air link 5 Operates autonomously 4 tl n Aids To Navigation 4 Standard will also be available soon 299 E vwmdm M CMX910 CMX7032 42 2 _ EU cu Microcircuits Slide 6 COMMUNICATION SEMICONDUCTORS Marine Al S System Overview AlS class A Mandatory on SOLAS
11. etermines its own transmission schedule based upon data link traffic history and knowledge of future actions by other stations AIS Class A was originally conceived for Safety Of Life At Sea SOLAS and large ships Today AIS Class A carriage is mandatory on all SOLAS class vessels CMX910 CMX7032 42 x z 2 SU em Microcircuits Slide 2 COMMUNICATION SEMICONDUCTORS Marine AIS Automatic Information System Introduction continued AIS Class B specification is now released and is a simplified version of the AIS Class A specification AIS Class B specifies the use of Carrier Sensing TDMA CSTDMA to resolve whether and when to transmit The carrier sensing enables a listen before transmit methodology and allows Class A and Class B devices to co exist whilst giving Class A devices priority AIS Class B opens up a completely new potentially large market of smaller vessels including the leisure craft market The Rx only market is another potentially large market currently in its infancy Low cost receivers can provide location information of larger vessels on displays and chart plotters This enables accurate automatic collision avoidance systems to be implemented down to leisure craft level Rx only devices also serve on shore hobbyists who only track craft activity Aids To Navigation AToN buoys indicating shipping hazards and traffic channels are generally anchored to a fixed position near the hazard but installing them can be d
12. ifficult and the hazard can shift and require the buoy to be moved A shifted hazard presents risk to craft until its marking buoy is moved AlS can eliminate the difficulty of physically placing and moving buoys by allowing a transponder in a fixed location even on shore to emulate an AIS buoy at the hazard location The AIS AToN emulated location can also be remotely updated so buoys need not be moved when hazards shift Remote updating is very quick and 50 reduces risk compared to physically relocating a buoy AlS SART EPIRB standards are emerging to take advantage of the AIS real time pin point positioning to personal safety at sea CMX910 CMX7032 42 x z 2 SU em Microcircuits Slide 3 COMMUNICATION SEMICONDUCTORS Introduction Marine Al System Introduction i 3 FE LLL LLL LE ANL unm eee E m LE It ha 1 910 7032 42 Slide 4 Marine Al S System Overview SOLAS The driving factor AlS allows vessels and base stations to communicate their position and other data to each other without the need for a centralised controller or base stations This allows vessels to see each other and take appropriate action to avoid collisions and so improve marine safety The system uses a GMSK 9600 baud data link in the Marine VHF frequency band The system requirements are defined in 1371 1 stand
13. its SS Slide 27 COMMUNICATION SEMICONDUCTORS CMX7032 7042 Limiter Discriminator Al S Processors Block Diagram Multplexed Tx Siet Auxillary Inputs 3 0 to 3 8 volt Enable Clock input Gleck RSSI2 ADC ADC2 Auxiliary DAC Outputs 5 C BUS IOVDD Serlal c Interface Chip Gelect VBIAS _ Reosive Data 20 1 E Serial Clock 8 o MUX Command M a Modulator Data Shanna Rx1 Power Control Demodulatar Dec ar Hi Grannal 1 5 FSK stem a PEK For Ohenne ae eqs gt Cocks Rx 2 GMSK Demodulator scies UN Ra Channel 2 Synthesiser 1 pa amp Syntheslser Connections m SPI Port AVDDQ 245 AAA 3 0 to 3 6 volt Intemupt Xtal Glock Boot Enable Port Input Vo 1and 2 for Fl Lead m CMX910 CMX7032 42 EU cu Micracircuits Slide 28 COMMUNICATION SEMICONDUCTORS CMX7032 7042 Limiter Discriminator Al S Processors opecification Limiter discriminator Rx interface Half Duplex GMSK AIS modem and DSC FSK demodulator Marine AIS Tx Rx and DSC Rx data formatting Flexible channel configuration Two simultaneous Rx Tx two point modulation or 4 Supports carrier sensing channel access CSTDMA Optimal Co channel performance Auxiliary functions 4 10bit DACs 2x 10bit ADCs 2x synthesisers CMX7032 only 2 programmable system clock outputs Tx enable outpu
14. nd monitoring circuits Ramping generation control Reduced HF filtering CMX910 Only requires low cost low speed host microcontroller and limiter discriminator based products Reduces system Gost and size Supply current Design time and risk HF system demonstrator and design support available EU cu Microcircuits oe Slide 15 COMMUNICATION SEMICONDUCTORS CMX910 AIS processor for 1 based systems Product Summary Slide 16 2009 CMX910 AI S Processor with 1 Q Interface Product features 044 radio interface Half Duplex GMSK FSK and DSC capabilities Flexible signal channels wo Simultaneous Rx One Ix Optional FSK Interface AIS formatted and raw data modes Digital IF filter olot sample timer counter sequencer with UTC timing interface High performance GMSK decoding Optimal co channel and adjacent channel performance Supports both SOTDMA and CSTDMA operation C BUS serial control interface oe oe 044 044 044 044 CMX910 7032 42 x z 2 SU em Microcircuits Slide 17 COMMUNICATION SEMICONDUCTORS CMX910 AI S Processor with 1 Q Interface Product features 044 Serial bus expansion port RF device enable facilities Small footprint VQFN and LQFP packages Sleep and dynamic powersave 4 Au
15. r Discriminator Rx RF systems CMX7032 CMX7042 have identical core functionality CMX7032 provides maximum integration with the inclusion of two auxiliary RF synthesisers on chip CMX7042 without RF synthesisers offers maximum RF system flexibility and the smallest foot print package Half duplex in operation Two parallel Rx paths Limiter Discriminator One AIS Tx path or two point modulation On chip auxiliary functions for control and management of the RF section Tx Section CMX7032 CMX7042 CMX910 CMX7032 42 2 EU cu Microcircuits Slide 26 COMMUNICATION SEMICONDUCTORS CMX7032 7042 Limiter Discriminator Al S Processors Product Features 044 Signal modulation demodulation with associated AIS functions raining sequence detection NRZI conversion HDLC processing flags bit stuffing de stuffing CRC generation checking Integrated Tx Rx data buffers reduce overall host uC processing requirements Auxiliary ADCs and DACs functions are provided to further simplify the system hardware design reducing the overall equipment size and cost Built on FirmASIC amp Technology offering maximum flexibility and upgradeability C BUS serial control interface tc E Lm ID e a 3 Aum mw e ENS Introduction System Promotion Resources AEST CML Microcircu
16. t for external hardware Slot clock input from host microcontroller Low power 3 3V operation _ Low profile VQFN and LQFP package options CMX910 CMX7032 42 2 EU cu Microcircuits Slide 29 SCS 044 COMMUNICATION SEMICONDUCTORS CMX7032 7042 Limiter Discriminator Al S Processors Function mage availability Marine AIS Marine AIS Function Image Basic Configuration Core Systems Auxiliary Systems CMX910 CMX7032 42 2 EU cu Microcircuits COMMUNICATION SEMICONDUCTORS CMX7032 7042 Limiter Discriminator Al S Processors Target applications Class B AIS systems based on Limiter Discriminator Hx HF interface AIS Class B transponders AIS Rx only units AIS Tx only modules AIS Aids To Navigation A ToN systems AIS SART Beacons AIS EPIRB Beacons 044 044 044 044 44 CMX910 CMX7032 42 2 EU cu Microcircuits Slide 31 COMMUNICATION SEMICONDUCTORS CMX7032 7042 Limiter Discriminator Al S Processors Evaluation support 0002 Universal interface board GUI program from the CML Technical Portal MyCML 0201 CMX703x series Evaluation board PE0401 CMX704x series Evaluation board 044 044 044 044 Microcontroller Evaluation kit Emulator PEO201 CMX703x Evaluation Kit
17. xiliary ADC and DAC 5 10 bit DACs 5 Input MUX 10 bit ADC Low power 3 3 V operation PA Ramping function 44 044 CMX910 Baseband Processor TCXO CMX910 CMX7032 42 x z 2 EU cu Microcircuits Slide 18 COMMUNICATION SEMICONDUCTORS CMX910 AI S Processor with 1 Q I nterface Block diagram Multiplexed 3 0 php vot Auxiliary ADC Inputa Auxiliary DAC Outputs Ghip Satect Recalva Data NRZI HDLC GF M SK FSK Encoder CJ Serial Clock Modulator and Filters Ts Channel Command Data and Filters Chip Belect GF M SK F SK D emodulator Exp 3 end Filters G HDLC GFM SKFSK NRZI Demodulator Decoder Expansion e For of ackitiowl BLS purposic doris Input FSK Detect Sync Clock Q N G Enable cutpute for timed contrel of peripheral circuita tm 4010 3 8 volt 8 Raast Mute FSK Rx Data UTC Slot Intemu pt EU cu Microcircuits Slide 19 COMMUNICATION SEMICONDUCTORS CMX910 AI S Processor with 1 Q Interface Auxiliary ADCs and DACs Typical applications 4 5 channel muxiplexed 10bit ADCs Temperature Battery voltage Forward power Reverse power RSSI 5 channel 10bit DACs AGC AGC Rx2 PA ramp PA bias Front end Filter tuning 10 bit DAC 10 bit DAC Auxilary Section 10 bit DAC 10 bit DAC 10 bit DAC Ramping
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