Internet DRAFT - draft-liu-its-scenario
draft-liu-its-scenario
Network Working Group D. Liu
Internet-Draft Alibaba Group
Intended status: Experimental March 9, 2015
Expires: September 10, 2015
Scenario of Intelligent Transportation System
draft-liu-its-scenario-00
Abstract
This document discuss the scenario of intelligent transportation
system.
Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
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This Internet-Draft will expire on September 10, 2015.
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Table of Contents
1. Scenario of Intelligent Transportation System Mobile
Applications . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Waze . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2. iRezQ . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3. Sentinel . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4. COYOTE . . . . . . . . . . . . . . . . . . . . . . . . . 5
2. Communication Requirement of ITS Application . . . . . . . . 5
3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 6
4. Security Considerations . . . . . . . . . . . . . . . . . . . 6
5. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 6
6. Normative References . . . . . . . . . . . . . . . . . . . . 6
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 6
1. Scenario of Intelligent Transportation System Mobile Applications
This document introduces several intelligent transportation system
mobile applications. From those applications, we analyze the
scenario and requirement of intelligent transportation system.
1.1. Waze
Waze (https://www.waze.com/) is a community-based traffic and
navigation application. The drivers who use waze can share the
traffic related event to other waze users. Traffic related event
includes traffic jams, accidents, road hazards etc. It uses the idea
of UGC (User Provided Content) to generate real-time traffic map.
Waze users can also communicate with each other using the waze
platform. For example, a group of friends that have the same
destination can share their location to coordinate everyone's arrival
times.
Waze architecture is shown in figure 1.
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preamble to the figure.
+---------------------------+
| Waze Platform |
| +Navigation |
| +Road Info |
| +Traffic Info |
| +Group communication |
+---------------------------+
| | |
+-----------+ | +----------+
| | |
+----------+ +----------+ +----------+
| Waze App |<----> | Waze App |<------>| Waze App | ...
+----------+ share +----------+ share +----------+
Driver Driver Driver
Figure 1: Waze architecture
Summary of the Waze architecture
o There is a centralized waze server that collect the road and
traffic information.
o Waze application can communicate with each other through
centralized waze server.
o Waze application's communication is based on TCP/IP.
1.2. iRezQ
iRezQ is another mobile application in the ITS field. Its main use
case is for driving safety. The iRezQ mobile application running on
the driver's mobile phone can monitor the vehicle's speed to detect
whether there is a collision. When collision is detected, iRezQ
application can dial the emergency call automatically. The
architecture of iRezQ architecture is shown in figure 2.
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+--------------------+
| SOS Operator |
+--------------------+
^
|
+--------------------+
| iRezQ Platform |
+--------------------+
| | |
+------+ | +--------+
| | |
+---------+ +---------+ +----------+
|iRezQ App| --> |iRezQ App| |iRezQ App |
+---------+ Warn +---------+ +----------+
Crash
Figure 2: iRezQ architecture
Summary of iRezQ architecture:
o The iRezQ mobile application is used to detect whether there is a
collision occurs. It uses the sensors in the mobile phone and
certain algorithm to determine whether there is a crash happening.
o If there is a crash detected by iRezQ mobile application, it will
warn the driver and sent out iRezQ-Warning message to all the
nearby drivers who are using iRezQ mobile application. The nearby
iRezQ users will receive a "WARNING! ACCIDENT NEARBY" message.
It will prevent the nearby drivers running into the collision
again and result in a second crash.
o For premium member, iRezQ mobile application will alert the iRezQ
emergency rescue center where an operator can see the driver's
position and breaking pattern presented i a graph. The iRezQ
rescue center will try to reach the driver if they suspect a true
accident.
1.3. Sentinel
Sentinel is security system used in Dakar rally. It is a security
system that alerts the drivers and riders about imminent overtakes or
accidents. It beeps and glows to warn the rider that he is going to
be overtaken. It alerts the participant who's being overtaken when
there are 200m between two vehicles. The architecture of sentinel is
shown in figure 3.
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+----------+
| Vehicle |
+----------+
| 200m +----------+
+---------->| Vehicle |
Warn +----------+
Figure 3: Sentinel architecture
Summary of sentinel architecture:
o There is a vehicle to vehicle distance detection/communication in
sentinel architecture.
1.4. COYOTE
Coyote System is a provider of community-based driving assistants.
Coyote provides real-time information on speed limits, road hazards
and traffic conditions to the coyote users. The architecture of
coyote is shown in figure 4.
+------------------+
| coyote platform |
+------------------+
+------------------|--------------------+
+----------+ +----------+ +-----------+
|coyote App| |coyote App| | coyote App|
+----------+ +----------+ +-----------+
Figure 4: Coyote architecture
Summary of coyote architecture:
o Coyote has similar architecture as Waze. Coyote users can share
traffic information to coyote platform and the coyote platform can
share the traffic information to other coyote users.
2. Communication Requirement of ITS Application
This section discusses the communication requirement of ITS
application. Section 1 introduces several ITS mobile applications.
From the analysis, we can conclude that:
o All the communication between the ITS mobile application and its
backend server is based on IP.
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o For some of those ITS applications, there is no direct
communication between the ITS mobile applications but there is
communication between ITS applications through the backend server.
o For some ITS application, for example, Sentinel, there is a
requirement of direct communication between vehicles.
IP provides the most flexibility from the developer's perspective.
There are plenty of developers that are familiar with developing
application based on TCP/IP. If there is a direct IP connection
between vehicles, it will help the developers to develop more
innovative and useful applications.
3. IANA Considerations
This document makes no request of IANA.
4. Security Considerations
TBD
5. Acknowledgements
TBD
6. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
Author's Address
Dapeng Liu
Alibaba Group
Beijing
Beijing
Phone: +86-1391788933
Email: maxpassion@gmail.com
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