Introduction

Last updated 2 months ago

D2X stands for Drone2X (X=anywhere) and is based on the Vehicle2X IEEE 802.11p mesh network standard. It's an established standard for automotive industry.

D2X (V2X) 802.11p is designed for

  • high approaching speed - up to 500km/h.

  • Very low latency - <1ms.

  • High datarate - up to 27Mbit/s.

  • fast link recovery.

  • using signal reflections other than normal wifi.

  • open mesh network infrastructure.

This makes it a perfect fit for drones that might fly in urban areas between buildings.

It uses the 5.9GHz band but due to SDR radio tuning to other frequency like ISM band or UNII-2Ext is possible. See Frequency usage for further details.

During tests with prerelease RF hardware a range of up to 1,5km was reached. With final production hardware we expect a stable link up to 3km.

Evaluationboard

The reference design is developed in cooperation with Auvidea GmbH and will be made available as demoboard via their webshop.*

.

*Expected release is September 2018.

Specification

Board size

83x52x30mm with heatsinks

Mounting

M3 - 77mm x 46mm hole distance

Connectivity*

3x UART (1x console / 1x TTL / 1x RS232 level)

GPS via seperate UART (TTL level) and I2C

USB (OTG) via micro USB connector

2x SPI

GPIO

Gbit Ethernet via Hirose iX connector

100b Ethernet

2x 100b T 2wire ethernet7

2x CAN

HDMI out via micro HDMI connector

MIPI-CSI in for HD camera via 22pin FPC connector

2x I2C

7-24V power supply

Power consumption

~400mA at 12V (200mW RF output power) / ~5W

Weight

~100g with heatsinks and without antennas

RF module

uBlox Vera-P174 V2X transceiver - dual channel/diversity

RF power

200mW / 23dBm

Compute module

NXP i.MX6 Quadcore with edison connector standard

Technexion PICO-IMX6

*all connections beside USB, GBit Ethernet, HDMI and MIPI-CSI are using JST-GH series connectors.