RSU-301U Information Sheet
V2X Roadside Unit, DSRC stack, V2Xcast®
Overview
RSU-301U is a V2X (Vehicle to Everything) roadside unit with waterproof IP67 enclosure designed to enable DSRC V2X in the Cooperative Intelligent Transport Systems (C-ITS) environment. RSU-301U provides secure data communication between vehicles and infrastructure, such as Advanced Traffic Controller, to enable cooperative ITS applications. Preloaded DSRC stack and V2Xcast® software, RSU301U provides highest Vehicle to Infrastructure (V2I or I2V) application flexibility to fit the various deployment needs of different ITS and V2X system integrators.
Feature
- A rich SDK contains facility-layer messages, APIs and example codes supports quick development of V2X applications.
- Seamlessly enable V2X on roadside Linux host via Ethernet connection and V2Xcast®.
- On-board mPCIe socket allows add-on module such as LTE or Wi-Fi/Bluetooth radio.
Specifications
| Chipset |
|
|---|---|
| Operation System | Linux Yocto |
| System Service | RS-232 console (baud rate 115200 bps) through on-board interface |
| System Memory | 128MB NAND, 128MB DDR3 |
| Preloaded Firmware | DSRC stack including IEEE 802.11p, IEEE 1609.2/3/4, and SCMS client*(*Est. in Q2 ’21) |
| Development Tool | V2Xcast® SDK, including APIs and SAE J2735 facility layer messages |
| Hardware Security |
|
| DSRC |
|
| GNSS |
|
| External Connector |
|
| On-Board Interface |
(*. Support by project) |
| LED |
|
| Antenna |
|
| Power Supply | 802.3af PoE (12W) |
| Operation Temperature Range | ambient: -40°C ~ +70°C |
| Operating Humidity | 10% ~ 95%, non-condensing |
| Product Dimension | 220.5mm (L) x 127.5mm (W) x 72.3mm (H) (excluding antennas) |
Software
Featuring with V2Xcast®, Unex’s innovative software technology, RSU-301U allows two modes of operation:
1. Hostless Mode: RSU works as a standalone full-featured V2X unit
2. Hosted Mode: RSU works as a V2X communication unit to the application host
Unex RSU-301U enables ease of V2X software development through its V2Xcast® technology. Previously, V2X protocol software had to be built and verified complicated APIs, resulting in a duplicated effort, risk and cost. With Unex intuitive V2Xcast solution that provides ready-to-use V2X communication services for V2X applications, customers can significantly cut time-to-market with less development and testing cost.
V2Xcast is supported in RSU-301U to facilitate V2I/I2V application development. It includes two parts – V2Xcast Service and V2Xcast SDK.
V2Xcast SDK
Deploy V2Xcast SDK in either RSU-301U or external application host, it includes APIs to get the services from V2Xcast Service and the main functions of facility layer (J2735), such as message encoder/decoder and example code.
V2Xcast Service
V2Xcast Service image resides in RSU-301U, it combines IEEE 1609 WAVE protocol stack that includes IEEE 1609.2/3/4, SCMS protocol, and POTI. V2X communication protocols will be easily enabled via configuration input without any programming.
Security
Security functions provided by V2Xcast® are designed based on a highly secure HSM (Hardware Security Module).
The highly secure HSM with FIPS 140-2 Level 3 certification is embedded in RSU-301U.
Cryptographic processor eliminates bottlenecks, maximizes application performance and offload CPU’s computation. To protect your sensitive cryptographic keys in a high-assurance key vault, the design provides leverage a keys-in-hardware solution. With the keys-in-hardware solution, all the cryptographic operations are inside HSM and those keys never leave the HSM.
Typical Using Case
The traffic controller unit acts as SPATEM/MAPEM or SPAT/MAP generator to perform the relative encode/ decode. Implement the required V2X stack on RSU-301 to co-operatively work with the traffic controller unit and serves to receive and forward the SPATEM/MAPEM or SPAT/MAP messages as a payload for communication between vehicles and traffic controllers in co-operative ITS. V2I/I2V applications can be flexibly implemented on the traffic controller unit or RSU-301.
Connectivity
Package contents
- One RSU-301U
- Two outdoor DSRC antennas
- One outdoor GNSS antenna
- One PoE surge protector
- One cable gland
- Mounting Bracket and accessories
- One earth wire
- Hardware Guide and software development kit available on Unex server
