ISO 17215-1:2014

INTERNATIONAL ISO
STANDARD 17215-1
First edition
2014-04-15
Road vehicles — Video communication
interface for cameras (VCIC) —
Part 1:
General information and use case
definition
Véhicules routiers — Interface de communication vidéo pour caméras
(ICVC) —
Partie 1: Informations générales et définition de cas d’utilisation
Reference number
©
ISO 2014
© ISO 2014
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ii © ISO 2014 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 2
3 Terms, definitions, and abbreviated terms . 2
3.1 Terms and definitions . 2
3.2 Abbreviated terms . 2
4 Conventions . 3
5 Overview . 3
5.1 General . 3
5.2 Document overview and structure . 4
5.3 Open Systems Interconnection (OSI) model . 4
5.4 Document reference according to OSI model . 4
6 Use cases . 5
6.1 Main use case cluster . 5
6.2 Video communication interface for camera’s use case definition . 6
7 Camera communication scenarios . 9
7.1 Overview of camera network configurations . 9
7.2 Single camera application. 9
7.3 Multi-camera application .10
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
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assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 3, Electrical
and electronic equipment.
ISO 17215 consists of the following parts, under the general title Road vehicles — Video communication
interface for cameras (VCIC):
— Part 1: General information and use case definition
— Part 2: Service discovery and control
— Part 3: Camera message dictionary
— Part 4: Implementation of communication requirements
iv © ISO 2014 – All rights reserved

Introduction
Driver assistance systems are more and more common in road vehicles. From the beginning, cameras
were part of this trend. Analogue cameras were used in the beginning, because of lower complexity of
the first systems. With increasing demand for more advanced functionality, digital image processing has
been introduced. So-called one box design cameras (combining a digital image sensor and a processing
unit) appeared in the vehicles.
Currently, the market demands such systems with multiple functions. Even different viewing directions
are in use. It seems to be common sense that six up to 12 cameras in a single vehicle will be seen in the
next future. Out of this and the limitation in size, power consumption, etc. it will lead to designs where
the cameras are separated from the processing unit. Therefore, a high performance digital interface
between camera and processing unit is necessary.
This International Standard has been established in order to define the use cases, the communication
protocol, and the physical layer requirements of a video communication interface for cameras which
covers the needs of driver assistance applications.
The video communication interface for cameras
— incorporates the needs of the whole life cycle of an automotive grade digital camera,
— utilizes existing standards to define a long-term stable state-of-art video communication interface
for cameras usable for operating and diagnosis purpose,
— can be easily adapted to new physical data link layers including wired and wireless connections by
using existing adaption layers, and
— is compatible with AUTOSAR.
This part of ISO 17215 is related to the general information and use case definition. This is a general
overview document which is not related to the OSI model.
To achieve this, it is based on the Open Systems Interconnection (OSI) basic reference model specified
in ISO/IEC 7498-1 and ISO/IEC 10731 which structures communication systems into seven layers. When
mapped on this model, the protocol and physical layer requirements specified by this International
Standard, in accordance with Table 1, are broken into following layers:
— application (layer 7), specified in ISO 17215-3;
— presentation layer (layer 6), specified in ISO 17215-2;
— session layer (layer 5), specified in ISO 17215-2;
— transport protocol (layer 4), specified in ISO 17215-4, ISO 13400-2;
— network layer (layer 3), specified in ISO 17215-4, ISO 13400-2;
— data link layer (layer 2), specified in ISO 17215-4, ISO 13400-3;
— physical layer (layer 1), specified in ISO 17215-4, ISO 13400-3.
Table 1 — Specifications applicable to the OSI layers
Applicability OSI 7 layers Video communication interface for cameras Camera diagnostics
Application (layer 7) ISO 17215-3
Presentation (layer 6) ISO 17215-2
Seven layers
Session (layer 5) ISO 17215-2
according to
ISO/IEC 7498-1 Transport (layer 4)
ISO 17215-4 ISO 13400-2
and
Network (layer 3)
Other future interface
ISO/IEC 10731
standards
Data link (layer 2)
ISO 17215-4 ISO 13400-3
Physical (layer 1)
ISO 17215-1 has been established in order to define the use cases for vehicle communication systems
implemented on a video communication interface for cameras; it is an overall document not related to
the OSI model.
ISO 17215-3 covers the application layer implementation of the video communication interface for
cameras; it includes the API.
ISO 17215-2 covers the presentation layer implementation of the video communication interface for
cameras.
ISO 17215-4, being the common standard for the OSI layers 1 to 4 for video communication interface for
cameras, complements ISO 13400-2 and ISO 13400-3 and adds the requirement for video transmission
over Ethernet.
ISO 17215-2 and ISO 17215-3 (OSI layers 5 to 7) services have been defined to be independent of the
ISO 17215-4 (OSI layers 1 to 4) implementation. Therefore, ISO 17215-4 could be replaced by other
future communication standards.
vi © ISO 2014 – All rights reserved

INTERNATIONAL STANDARD ISO 17215-1:2014(E)
Road vehicles — Video communication interface for
cameras (VCIC) —
Part 1:
General information and use case definition
1 Scope
This International Standard describes the general use cases and communication scenarios, for a video
communication interface for cameras used in video-based driver assistant systems.
This part of ISO 17215 gives an overview of the structure and the partitioning of this International
Standard and shows the relation between the different parts (see Figure 1).
Service Flash
Service Helper
Use cases
discovery update
control protocols
L7
API API
L6
DoIP
L5 DHCP * SOME / IP
IEEE IEEE
TFTP
ICMPv6
1722 802.1AS
ICMP
(AVTP) (gPTP)
L4 UDP TCP
NDP
part of AVB part of AVB
ARP
AV-transport time sync
L3 IPv6 / IPv4
Ethernet MAC + VLAN (802.1Q)
L2
Ethernet physical layer
L1
OSI-layer out of scope
Part 1Part 2 Part 3 Part 4
Figure 1 — Overview of ISO 17215
This part of ISO 17215 serves as communication infrastructure for driver assistant applications that
could be
— presenting video images to the driver,
— presenting warnings to the driver (e.g. using an HMI), or
— interacting with the vehicle (e.g. emergency breaking).
The terminology defined in this part of ISO 17215 is common for all video communication interfaces for
cameras communication systems and is used throughout all parts of this International Standard.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO/IEC 7498-1, Information technology — Open Systems Interconnection — Basic Reference Model: The
Basic Model —Part 1
ISO/IEC 10731, Information technology — Open Systems Interconnection — Basic Reference Model —
Conventions for the definition of OSI services
ISO 17215 (all parts), Road vehicles — Video communication interface for cameras (VCIC)
ISO 13400-2, Road vehicles - Diagnostic communication over Internet Protocol (DoIP) — Part 2: Transport
protocol and network layer services
ISO 13400-3, Road vehicles — Diagnostic communication over Internet Protocol (DoIP) — Part 3: Wired
vehicle interface based on IEEE 802.3
3 Terms, definitions, and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
camera configuration
setup and installation of the camera
3.1.2
extrinsic auto calibration
extrinsic parameters will denote the coordinate system transformations from 3D world (vehicle)
coordinates (m,°) to 3D camera coordinates (m,°)
3.1.3
firmware
program code and data stored in electronic unit
3.1.4
histogram
graphical representation of the tonal distribution in a digital image
3.2 Abbreviated terms
Term Description
API Application Programming Interface
AUTOSAR Automotive Open System Architecture
AVTP Audio Video Transport Protocol
DAS Driver Assistance System
DHCP Dynamic Host Configuration Protocol
ECU Electronic Control Unit
2 © ISO 2014 – All rights reserved

Term Description
EMC Electromagnetic Compatibility
gPTP Generalized Precision Time Protocol
HDR High Dynamic Range
HMI Human Machine Interface
ICMP Internet Control Message Protocol
IDL Interface Description Language
ISO International Organization for Standardization
LDR Low Dynamic Range
LLC Logical Link Control
MAC Media Access Control
MII Media Independent Interface
NDP Neighbour Dis
...