1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
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3、ublication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-497
4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AS6135 AEROSPACE STANDARD AS6135 Issued 2012-12 Interface Standard, Airborne EO/I
5、R Systems, Data RATIONALE This document was created to standardize the data interface between aircraft and EO/IR sensors. This activity was initiated at the request of the U.S. Navy in 2009. PREFACE AS6135, Interface Standard, Airborne EO/IR Systems, Data, is a standard that defines the data interfa
6、ce between aircraft (manned and unmanned) and onboard EO/IR Systems. Its purpose is to promote platform to sensor system interface standardization by providing substantial, but not 100% commonality, interoperability, and interchangeability1. This document was prepared by the AS-1C3 Electro-Optic/Inf
7、rared Mission Avionics Data Exchange (MADE) Task Group, under the jurisdiction of the AS-1C Subcommittee, Avionic Subsystems, of the SAE AS-1 Committee, Platform Systems and System Integration. 1See also Appendix A1 SAE AS6135 Page 2 of 33 TABLE OF CONTENTS 1. SCOPE 3 1.1 Relationship Between Aircra
8、ft/Sensor Interfaces and SAE Standards 3 1.2 Purpose . 3 1.3 Application . 4 2. REFERENCES 4 2.1 Applicable Documents 4 2.1.1 SAE Publications . 4 2.1.2 Government Documents . 4 2.1.3 Industry Documents 5 2.2 Order of Precedence . 7 2.3 Definitions . 7 2.4 Acronyms 9 3. GENERAL REQUIREMENTS . 12 3.1
9、 Platform/Sensor Data Interface . 12 4. DETAILED REQUIREMENTS 14 4.1 Imagery and Metadata 15 4.1.1 Uncompressed Motion Imagery 15 4.1.2 Compressed Motion Imagery 16 4.1.3 Still Imagery 16 4.1.4 Metadata . 17 4.2 Communications Interfaces 21 4.2.1 RS-422 Serial Interface Characteristics 21 4.2.2 Ethe
10、rnet Interfaces 21 4.3 Command, Status, and Response Messages (CSRM) 22 4.3.1 CSRM Protocol . 22 4.3.2 CSRM Data Format and Content 22 4.4 Hand Controller . 22 4.5 Geospatial Position . 23 4.5.1 Internal GPS Receiver 23 4.5.2 External Geospatial Position Information 23 4.6 Time Stamping and Time Syn
11、chronization . 24 4.6.1 Internal GPS Receiver 24 4.6.2 External Time Source . 24 5. NOTES 25 APPENDIX A DISCUSSION, NOTES, AND RATIONALE 26 FIGURE 1 RELATED SAE STANDARDS 3 FIGURE 2 DATA FLOWS . 12 FIGURE 3 LOCATION OF INTERFACES (A) WITH ECU (B) WITHOUT ECU. 13 FIGURE 4 LOCATIONS OF INTERFACES ASSU
12、MING A HAND-CONTROLLER AND (A) AN ECU, (B) NO ECU 14 TABLE 1 ACRONYMS . 9 TABLE 2 DATA TYPES 14 TABLE 3 UNCOMPRESSED MOTION IMAGERY FORMATS . 15 TABLE 4 REQUIRED STILL IMAGERY METADATA FIELDS SET A . 19 TABLE 5 REQUIRED STILL IMAGERY METADATA FIELDS SET B . 20 TABLE 6 RS-422 SERIAL INTERFACE CHARACT
13、ERISTICS . 21 SAE AS6135 Page 3 of 33 1. SCOPE This standard defines the data interfaces between a host aircraft (“platform”) and an Electro-Optic/Infrared (EO/IR) sensor. These data interfaces cover various types of data including: imagery, metadata, command, status, and responses (CSR), geospatial
14、 postion, time, test and maintenance, and hand-controller. This standard does not cover mechanical or electrical interfaces. 1.1 Relationship Between Aircraft/Sensor Interfaces and SAE Standards Figure 1 shows the relationship between the various interfaces and the various SAE standards. AS6129 (ele
15、ctrical) covers connectors, power, conductors, fiber optics, and some aspects of data transport. AS6135 (data) covers data (e.g., imagery, metadata, as well as CSR). AS6135 overlaps AS6129 in the area of protocols for data transport. AS6135 and AS6129 are closely bound together because building a sy
16、stem based on these standards is dependent on the requirements from both standards. Also, requirements put in one standard can impact the options for updating the other standard. NOTE: Regarding Figure 1, SAE is drafting a standard (AS6165) to cover maintenance and test which will overlap both AS612
17、9 and AS6135. SAE is also drafting a standard (AS6169) which will cover the mechanical interface. AS6169 will overlap AS6129 with regard to connectors. FIGURE 1 - RELATED SAE STANDARDS 1.2 Purpose The intent of this standard is to enhance interoperability, commonality, and interchangeability among e
18、quipment provided by various EO/IR suppliers and avionic systems. Adoption of this standard will improve procurement flexibility for acquisition, system integrators, and platform providers. Relevant platforms include fixed wing, rotary wing, UAS (except for micro-UAS), and lighter than air vehicles.
19、 The approach adopted to accomplish these intents includes utilizing the same interface standards used elsewhere in the end-to-end system. This standard is also intended to encourage the move away from sensors that use interlaced acquisition, transport and/or format, as well as analog interfaces. Th
20、e data interface is designed to facilitate the: a. Interconnection between EO/IR sensor systems and the avionics systems hosted by the platform b. Exchange of data and metadata between sensor systems and sensor data processors c. Maintenance and test of EO/IR systems SAE AS6135 Page 4 of 33 1.3 Appl
21、ication This standard applies to all platforms and EO/IR sensors that interface with each other. AS6135 addressess turreted EO/IR sensor systems. Future revisions of AS6135 may address other EO/IR sensor systems such as pods. AS6135 covers sensors and platforms presently in concept development stage
22、s, future platforms, and sensor developments, and upgrades to legacy platforms. This standard is intended for use by procuring agencies and as a general guideline for industry. 2. REFERENCES 2.1 Applicable Documents The documents listed in this section are cited in Sections 3 and 4 of this standard.
23、 This section does not include documents cited in other sections of this standard, or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements documents
24、 cited in Sections 3 and 4 of this standard, whether or not they are listed here. The following publications form a part of this document to the extent specified herein. When specified herein, the specified revision level of a document shall be used. Otherwise, the latest revision level of the speci
25、fied document is implied. 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. AS6129 Interface Standard, Airborne EO/IR Systems, Electrical 2.1.2 Government D
26、ocuments ICD-GPS-060B GPS User Equipment (Phase III) Interface Control Document for the Precise Time and Time Interval (PTTI) Interface. 12 February 2002 MIL-STD-2500C National Imagery Transmission Format Version 2.1 for the National Imagery Transmission Format Standard (NITF 2.1), 2006-05 MISB EG 0
27、802.1 H.264/AVC Coding and Multiplexing, 2010-09 MISB MISP 6.2 Motion Imagery Standards Board (MISB), Motion Imagery Standard Profile (MISP), 2011-6 MISB RP 0403.1 Bit-Serial Digital Interface for Infrared Motion Imagery, 2010-02 MISB STD 9701 Standard Definition Digital Motion Imagery, Compression
28、Systems (MISP) MISB STD 0102.9 Security Metadata Universal and Local Sets for Digital Motion Imagery, 2010-09 MISB STD 0601.4 UAS Datalink Local Metadata Set, 2010-3 MISB STD 0603.1 Common Time Reference for Digital Motion Imagery Using Coordinated Universal Time (UTC), Jun 2011 MISB STD 0604.2 Time
29、 Stamping and Transport of Compressed Motion Imagery and Metadata, 2011-06 MISB STD 0605.3 Inserting Time Stamps and Metadata in High Definition Uncompressed Video, 2011-06 SAE AS6135 Page 5 of 33 MISB STD 0807.8 MISB KLV Metadata Dictionary, 2011-10 MISB STD 0902.1 Motion Imagery Sensor Minimum Met
30、adata Set, 2010-06 NAVSTAR ICD GPS 060 -B GPS User Equipment (Phase III) Interface Control Document for the Precise Time and Time Interval (PTTI) Interface. 2002-02 NTB STDI-0002 v 4.0 The Compendium of Controlled Extensions (CE) for the National Imagery Transmission Format (NITF) 2011-08 STANAG 458
31、6 Ed 2, amendment 2 STANDARD INTERFACES OF UAV CONTROL SYSTEM (UCS) FOR NATO UAV INTEROPERABILITY, Ed. 2, amendment 2 U.S. Army PM ICD 2.1.1 U.S. Army Unmanned Aircraft Systems (UAS) Project Office Private Messages Interface Control Document (ICD) Version 2.1.1 2011-09 2.1.3 Industry Documents ANSI/
32、TIA/EIA-422-B Electrical Characteristics of Balanced Voltage Differential Interface Circuits (RS-422) IEEE-1588-2008 Precision Clock Synchronization Protocol for Networked Measurement and Control Systems. Precision Timed Protocol (PTP/IEEE 1588) IEEE-802.3ab Physical Layer Parameters and Specificati
33、ons for 1000 Mb/s Operation Over 4 Pair of Category 5 Balanced Copper Cabling, Type 1000BASE-T IEEE-802.3ae Media Access Control (MAC) Parameters, Physical Layers, and Management Parameters for 10 Gb/s Operation ISO/IEC 13818-1:2007 Information technology - Generic coding of moving pictures and asso
34、ciated audio information, Part 1: Systems ISO/IEC 14496-10:2009 Information Technology - Coding of audio-visual objects Part 10: Advanced video coding ISO/IEC 15444-1:2004 Information Technology - JPEG 2000 image coding system: Core coding system ITU-T Rec. H.264 Advanced Video Coding for Generic Au
35、dio Visual Services 2009-03. (ISO/IEC 14496-10:2009) RFC 768 User Datagram Protocol, 1980-08 RFC 791 Internet Protocol, 1981-09 (Updated by RFC 1349) RFC 792 Internet Control Message Protocol (ICMP) RFC 959 File Transfer Protocol (FTP) RFC 2460 Internet Protocol v6 (IPv6), 1998-12 (updated by RFC 50
36、95, RFC 5722, RFC 5871, RFC 6437) RFC 2818 HTTP Over Transport Layer Security (TLS) RFC 3376 Internet Group Management Protocol (IGMP), Version 3 RFC 4251 The Secure Shell (SSH) Protocol Architecture SAE AS6135 Page 6 of 33 SMPTE RP 214:2002 Packing KLV Encoded Metadata and Data Essence into SMPTE 2
37、91 Ancillary Data Packets (Archived 2007).2SMPTE ST 12-1:2008 Television - Time and Control Code SMPTE ST 12-2:2008 Television - Transmission of Time Code in the Ancillary Data Space SMPTE ST 125:1995 Television - Component Video Signal 4:2:2 - Bit-Parallel Digital Interface SMPTE ST 259:2008 Televi
38、sion - SDTV Digital Signal/Data - Serial Digital Interface SMPTE ST 274:2008 Television - 1920 x 1080 Image Sample Structure, Digital Representation and Digital Timing Reference Sequences for Multiple Picture Rates SMPTE ST 291:1998 SMPTE 291-1998: Ancillary Data Packet and Space Formatting SMPTE ST
39、 292-0:2011 SMPTE Bit-Serial Interfaces at 1.5 Gb/s - Roadmap for the 292 Document Suite SMPTE ST 292-1:2011 1.5 Gb/s Signal/Data Serial Interface SMPTE ST 293:2003 Television - 720 x 483 Active Line at 59.94-Hz Progressive Scan Production - Digital Representation SMPTE ST 296:2010 Television - 1280
40、 x 720 Progressive Image Sample Structure - Analog and Digital Representation and Analog Interface SMPTE ST 297:2006 Television - Serial Digital Fiber Transmission System for SMPTE 259,SMPTE 344,SMPTE 292 and SMPTE 424Signals SMPTE ST 349:2001 Television - Transport of Alternate Source Image Formats
41、 through SMPTE 292 (Archived 2006) SMPTE ST 424:2006 Television - 3 Gb/s-Signal/Data Serial Interface SMPTE ST 425-0:2011 SMPTE Bit-Serial Interfaces at 3 Gb/s - Roadmap for the 425 Document SMPTE ST 425-1:2011 Source Image Format and Ancillary Data Mapping for the 3 Gb/s Serial Interface SMPTE ST 4
42、35-1:2009 10 Gb/s Serial Signal/Data Interface - Part 1: Basic Stream Distribution SMPTE ST 435-2:2009 10 Gb/s Serial Signal/Data Interface - Part 2: 10.692 Gb/s Stream - Basic Stream Data Mapping SMPTE ST 435-3:2009 10 Gb/s Serial Signal/Data Interface - Part 3: 10.692 Gb/s Optical Fiber Interface
43、SMPTE ST 2048-0:2011 SMPTE ROADMAP 2048 x 1080 and 4096 x 2160 Digital Cinematography Production Image Formats FS/709 - Roadmap for the 2048 Document Suite SMPTE ST 2048-1:2011 2048 x 1080 and 4096 x 2160 Digital Cinematography Production Image Formats FS/709 SMPTE ST 2048-2:2011 2048 x 1080 Digital
44、 Cinematography Production Image FS/709 Formatting for Serial Digital Interface WGS84 World Geodetic System 1984 2http:/store.smpte.org/product-p/rp%200214-2002.htm SAE AS6135 Page 7 of 33 2.2 Order of Precedence In the event of a conflict between the text of this document and the references cited h
45、erein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 2.3 Definitions COMMAND, STATUS, AND RESPONSE INTERFACE: Defines the data elements and message sets passed between the host
46、platform and the sensor used to control the operation of the sensor. This interface may also be used to check sensor operation. The protocol for passing these messages is handled in co-ordination with the AS6129. AS6129 also covers the requirements for conductors/fiber optics. The following types of
47、 information are passed through the Command, Status, and Response Interface: a. COMMANDS: The set of all digital instructions transmitted to the EO/IR sensor from the controller which directs its operation. These instructions come from an operator, from the aircraft, or from a pre-programmed set of
48、instructions. These commands, for example, instruct the EO/IR sensor where to point, and which features to utilize in gathering images, such as: slew left; turn on stabilization; lock onto a geo-location; change magnification to X; display black as hot versus white hot; turn on image fusion; etc. b.
49、 STATUS: Digital information returned from the EO/IR sensor back to the operator, aircraft, or recorder which provides feedback on sensor operation and other indications of its condition. Examples of this information include: magnification level, azimuth and elevation, stabilization setting, output scale setting for thermal sensors, heading, etc. Another example is the Built-In Test (BIT) information which might occur periodically, in res
