OBE-101

802.11p DSRC WAVE Communication Unit (US)

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Unex’s OBE-101 is a 802.11p DSRC WAVE Communication Unit with pre-installed 802.11p / 1609 protocol firmware stack for software developers or programmers to deploy V2X applications in Intelligent Transportation System (ITS) to improve automotive safety and enable a variety of commercial applications for connected vehicles on the roadways. OBE-101 enables software developers or programmers to 1). bypass the normal UDP/IP processing and directly apply V2X application programs in UDP packet to run above WAVE/DSRC stack through UDP/WSMP Converter or 2). directly execute the real-time V2X application programs through Toolchain and standard Linux socket API on OBE-101.

OBE-101 is a specially designed automotive-grade hardware platform with Freescale MPC5121e processor and complete input interfaces in very compact 20 x 12 x 3 cm product dimension for vehicle dashboard mounting. Input interfaces includes CAN Bus port, external GPS port, and customized accessories of 5dBi Omni 5.9GHz DSRC antenna with industrial magnetic pod and Delphi power connector. 

Pre-installed firmware of 802.11p module, 1609.2/1609.3/1609.4 module, GPS module, CAN module, Log module, User Interface module, and UDP/WSMP Converter in OBE-101, plus DSRC SAE J2735 module and Toolchain and API document enable software developers or programmers to directly deploy V2X application programs on time and within budget.

OBE-101 is a dedicated V2X communication unit with the most powerful and flexible hardware interfaces and pre-installed WAVE/DSRC software stacks for direct V2X application deployment in different developing stages in laboratory, field trial, and large-scale mass-deployment. No more needs to allocate huge resources on hardware platform and software platform development of 802.11p module, 1609.2/1609.3/1609.4 module, GPS module, CAN module, Log module, and User Interface module from zero, software developers or programmers can direct deploy V2X applications on OBE-101 for research or commercial purpose through Toolchain and standard Linux socket API immediately.

  • Pre-installed 802.11p, 1609.2/1609.3/1609.4, GPS, CAN, Log, User Interface firmware modules, and UDP/WSMP Converter in binary code in OBE-101, plus DSRC SAE J2735 module and Toolchain and API document enable software developers or programmers to directly deploy V2X application programs on time and within budget.
  • Enables software developers or programmers to 1). bypass the normal UDP/IP processing and directly apply V2X application programs in UDP packet to run above WAVE/DSRC stack through UDP/WSMP Converter or 2). directly execute the real-time V2X application programs through Toolchain and standard Linux socket API on OBE-101.
  • Automotive-grade communication unit with Freescale MPC5121e processor and complete input interfaces in very compact 20 x 12 x 3 cm product dimension for vehicle dashboard mounting. Input interfaces includes CAN Bus port, external GPS port, and customized accessories of 5dBi Omni 5.9GHz DSRC antenna with industrial magnetic pod and Delphi power connector.
  • Embedded industrial-grade high power DCMP-86P2 DSRC module with 802.11p driver operating in the 5.85 ~ 5.925GHz frequency band, utilizing dedicated temperature compensated crystal oscillator (TCXO) ensures frequency deviation within ± 10ppm in –40ºC ~ +85ºC temperature range. 
  • Internal 10Hz GPS module supports RTCM SC-104 format in WAAS (Wide-Area Augmentation System) to correct GPS data in real time to improve positioning accuracy.
  • Channel switching enables one DSRC radio to access CCH (control channel) and SCH (service channel) in IEEE 1609.4 alternating access mode for co-existence of safety and non-safety applications.
  • FCC compliance

  

Main Interfaces of Hardware Platform:

1. Face View of OBE-101

 

ID Component Name Meaning Usage
1 Ext. GPS Port External GPS Port Slot The slot is used to inject external GPS signal using the RS-232 protocol.
2 GPS Status GPS Indicator Light The indicator light shines when GPS module is operating and receiving satellite data
3 Ext. 1PPS External 1PPS Connector The Connector is used to inject 1PPS signal of external GPS into WCU
4 GPS Switch GPS Source Switch The switch is used to change the GPS source input from the Internal source to the external source, and vice versa.
5 Status 1 Push Button 1 Indicator Light This light indicates the behavior of PB1.
6 Status 2 Push Button 2 Indicator Light This light indicates the behavior of PB2
7 PB1 Push Button 1 This is a simple switch mechanism for controlling machine This button is reserved for user,
8 PB2 Push Button 2 This is a simple switch mechanism for controlling machine This button is reserved for user,
9 VGA Video Graphics Array Slot The slot is used to connect with a VGA cable
10 GPS Ant GPS Antenna Slot The slot should be plugged with a GPS antenna before the device boots.
11 WAVE1 Ant First WAVE Radio Antenna Slot The slot should be plugged with a WAVE radio antenna before the device boots.
12 WAVE2 Ant Secondary WAVE Radio Antenna Slot The slot should be plugged with a WAVE radio antenna before the device boots.
13 LAN Ethernet Cable Slot The slot is used to connect with an Ethernet device.
14 Power Power Cable Slot This slot should be plugged with a power cord. The device should be powered by the AC power or the DC power supplied by a vehicle charger.
15 Alarm Power Power Indicator Light This indicator light shines when the device is powered.

 

 

2. Back View of OBE-101

ID Component Name Meaning Usage
16 AUDIO AUDIO slot The slot is used to connect with an audio cable.
17 USB USB Slot This slot is used to connect with USB devices.
18 CAN Port0 CAN Bus Port The slot is used to connect an in-vehicle network via the CAN protocol.
19 Console RS-232 Serial Port The slot is used to connect with control units using the RS-232 protocol.

 

3. Side View of OBE-101

ID Component Name Meaning Usage
20 SD SD Slot The slot is used to connect with a secure digital memory card.

 

How to use OBE-101 to develop V2X application programs:

OBE-101 enables software developers or programmers to 1). bypass the normal UDP/IP processing and directly apply V2X application programs in UDP packet to run above WAVE/DSRC stack through UDP/WSMP Converter or 2). directly execute the real-time V2X application programs through Toolchain and standard Linux socket API on OBE-101.

 

1). UDP/WSMP Converter:

UDP packets run above WAVE/DSRC stack. The UDP/WSMP Converter converts an UDP packet to a WSMP packet and converts a WSMP packet to an UDP packet according to the configuration of cofiguration of converter rules.

 

2). V2X application programs execute flow through standard Linux socket API on in OBE-101: 

  1. On-Board Equipment OBE-101
  2. 100-240V AC power adapter
  3. Delphi power cord (converting to AC power plug)
  4. 5.9 GHz 5dBi Omni DSRC detachable antenna and magnetic pod
  5. 5 meters low loss 50ohm coaxial antenna cable
  6. GPS antenna with 5 meters length cable
  7. 1PPS signal cable
  8. DB9 (female) to DB9 (female) 1.8 meters console cables
  9. DB9 (female) to DB9 (male) CAN Bus terminator converter
  10. Toolchain and API Document in CD-ROM

 

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Hardware Specifications:

Processor Freescale MPC 5121e 400MHz
System Memory 64MB NOR flash, 512MB DDR2 SDRM
DSRC Radio one Unex's DCMA-86P2 DSRC mini-pci, IEEE 802.11p 5.85 – 5.925GHz, -90dBm Rx sensitivity, channel width 10MHz/20MHz
DSRC Radio Tx power 30dBm (EIRP)
DSRC Antenna 5.9 GHz, 5dBi Omni x 1, magnetic pod to easily mount onto the car
GPS Radio

one internal GPS radio, 10Hz module, receive type: 50 channels (GPS L1 frequency, C/A Code, GALILEO open service L1 frequency), A-GPS support, sensitivity: -160dBm (tracking and navigation), accuracy of time-pulse signal: 30ns (RMS), horizontal position accuracy: < 2.5 meters (autonomous), < 2.0 meters (SBAS)

Remark: supports RTCM SC-104 format in WAAS

GPS Antenna active antenna x 1, magnetic pod to easily mount onto the car
Ethernet one 10/100 Mbps RJ-45 port, auto uplink, full-duplex port
Serial Port one standard RS232 interface with DB-9 male connector
USB Port one USB 2.0 port (reserved for 3.5G USB dongle or other application such as Wi-Fi and Bluetooth)
CAN Bus one CAN Bus 2.0 interface, optional 2nd CAN Bus through Delphi connector
Storage
one SD slot
Push Button two Push Button, simple switch mechanism for controlling a machine
LED 4 LEDs, PWR(green)/ALARM (red), GPS Status (green), Status 1 and Status 2 (Push Button 1 and Push Button 2)
Temperature operating: –40°C ~ +85°C, storage: –40°C ~ +85°C
Relative Humidity operating: 10% - 90% (non-condensing), storage: 5% - 95% (non-condensing)
Power Type Delphi connector, 12VDC adapter
Casing metal
NMEA Standard NMEA 0183
Regulation Compliance FCC
Product Dimension 20cm (L) x 12cm (D) x 3cm (H)
Packing Box Size 27cm (L) x 25cm (D) x 12cm (H)

 

 

Software Specifications:

Operating System Linux kernel 2.6.32
Standard Compliance IEEE 802.11p, IEEE 1609.2, IEEE 1609.3, IEEE 1609.4 (update firmware will be provided after new standard finalized by project request) 
Channel 172, 174, 176, 178, 180, 182, 184 (5.9GHz DSRC)
Software Installed (binary code)
  1. IEEE 802.11p module: support 802.11p driver of DCMA-86P2 DSRC 5.9GHz card
  2. IEEE 1609.2 module: support the message security of WAVE/DSRC
  3. IEEE 1609.3 module: support networking services of WAVE/DSRC
  4. IEEE 1609.4 module: support the multi-channel operating of WAVE/DSRC
  5. SNMP module: support SNMP services of WAVE/DSRC
  6. GPS module: GPS messages handling module
  7. CAN Bus module: CAN Bus messages handling module
  8. CLI module: system command software module
  9. WEB module: web mode of system command software module
  10. Logging module: system logging software module
  11. UDP/WSMP Converter: source and destination programs can run above WAVE/DSRC stack
SDK Toolchain and API document
System Services SSH, Telnet, HTTP