Description / Abstract:
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
postion, time, test and maintenance, and hand-controller. This
standard does not cover mechanical or electrical interfaces.
Relationship Between Aircraft/Sensor Interfaces and SAE
Standards
Figure 1 shows the relationship between the various interfaces
and the various SAE standards. AS6129 (electrical) 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 system 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 AS6129 and
AS6135. SAE is also drafting a standard (AS6169) which will cover
the mechanical interface. AS6169 will overlap AS6129 with regard to
connectors.
Purpose
The intent of this standard is to enhance interoperability,
commonality, and interchangeability among equipment 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. 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.
The 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
Application
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 stages, 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.