Hardware und Firmware-Entwicklung für Kommunikation und Lokalisierung in Echtzeit für esafety Anwendungen

Transcription

1 Hardware und Firmware-Entwicklung für Kommunikation und Lokalisierung in Echtzeit für esafety Anwendungen Wireless Technologies Congress 2008 Bochum, , Berufsakademie / sikora@ba-loerrach.de 1

2 Contents who we are? ch.1 esafety requirements and applications examples ch.2 hardware development ch.3 firmware development ch.4 test results & demo ch.5 summary 2

3 University of Cooperative Education Berufsakademie Lörrach dual university (from ) 6 semesters at theuniversity 6 practical terms in one company trainee program HOD Information Technology migrating Oct 2006: B.Eng. Communication and Software Engineering mostly PC and Office oriented program Embedded Connectivity convergence of technologies from embedded and PC world wired and wireless networking protocols devices and system design design methodologies Master-Online Intelligent Embedded Microsystems blended learning model for executive master cooperation with Faculty of Applied Sciences, University of Freiburg 3

4 Steinbeis Transfer Centre Steinbeis Innovation Center Embedded Design and Networking Hw-Sw-Codesign cryptography MCU/MPU/DSP ASIC/PLD-Design Embedded Design technology-/ vendor - support Embedded Internet Telemetry telesurveillance localization esafety CAN/Ethernet/ Industrial Ethernet IPv4/IPv6 Bluetooth ranging GSM/GPRS Security Multi-Tier-Architectures Networking proprietary RF Gateway-Design IEEE802.11/WLAN IEEE / ZigBee Mesh/Multihop ad-hoc networking 4

5 Contents who we are? ch.1 esafety requirements and applications examples ch.2 hardware development ch.3 firmware development ch.4 test results & demo ch.5 summary 5

6 ch.1: esafety requirements 6

7 ch.1: esafety existing solutions sensors 7

8 ch.1: esafety existing solutions communication Source: Car2Car Communication Consortium 8

9 ch.1: esafety the WATCH-OVER project Vehicle-to-vulnerable road user cooperative communication and sensing technologies to improve transport safety design and development of a cooperative system for the prevention of accidents involving vulnerable road users in urban and extra-urban areas Concentrates on cars, pedestrians and cyclists The companies involved: 9

10 ch.1: esafety WATCH-OVER architecture Combination of a camera and a radio based positioning system to raise the information quality Radio tag and a reduced user interface for pedestrians and two-wheelers Cooperative relative positioning of two or more modules in range Ad-hoc network establishment between the radio modules 10

11 ch.1: esafety WATCH-OVER sensor fusion and use cases Most common: pedestrian on the sidewalk Most dangerous: hidden road users 11

12 ch.1: esafety WATCH-OVER overview of radio localization systems Tasks: Localization without fixed installation Opportunity to combine data transfer and positioning Range of up to 80m Detecting hidden road users RF-based measurement principles results & demo of technology scouting: Very suitable: CSS-based communication Possible fulfillment of all requirements Implementations available angle of arrival (AOA) received signal strength (RSS) time of arrival (TOA) Propagation time based roundtrip-time of flight (RTOF) time difference of arrival (TDOA) 12

13 Contents who we are? ch.1 esafety requirements and applications examples ch.2 hardware development ch.3 firmware development ch.4 test results & demo ch.5 summary 13

14 ch.2: hardware development test-devices Nanotron prototype Nanotron dev board stzedn module new 14

15 ch.2: hardware development requirements small size for portability (especially for VRU device) optimized PCB RF-layout mechanical fixing low power for battery operation no external PA MSP430 flexibility chip vs external antenna high efficiency long range (> 100m LOS; good indoor characteristics) system integration optional add-on board for serial interface 15

16 Contents who we are? ch.1 esafety requirements and applications examples ch.2 hardware development ch.3 firmware development ch.4 test results & demo ch.5 summary 16

17 ch.3: firmware development requirements high efficiency short reaction times channel usage flexibility & small footprint modular approach improved FSM full control adaptations to 5 way measurements system integration serial AT-command protocol 17

18 ch.3: firmware development implementation implementation on MSP430 up to 120 measurements per second with 5 frames each footprint 8 KB RAM ~30k ROM depending on activated functions 18

19 ch.3: firmware development AT command set 19

20 Contents who we are? ch.1 esafety requirements and applications examples ch.2 hardware development ch.3 firmware development ch.4 test results & demo ch.5 summary 20

21 ch.4: test results range RSSI/Packet-Loss distance (m) RSSI Packet-Loss 21

22 ch.4: test results accuracy (1) 150,00 100,00 50,00 dynamic error (cm) 0,00-50, ,00-150,00 distance (m) mean upper bound(100%) lower bound (100%) 22

23 ch.4: test results accuracy (2) 150,00 100,00 50,00 dynamic error (cm) 0,00-50, ,00-150,00 distance (m) mean upper bound (50%) lower bound (50%) 23

24 ch.4: test results demo 24

25 Contents who we are? ch.1 esafety requirements and applications examples ch.2 hardware development ch.3 firmware development ch.4 test results & demo ch.5 summary 25

26 ch.5: summary nanoloc provides a good IC-hardware platform for efficient localization and communication system integration with module and software support only stzedn has developped a generic platform and has already used it in (other) project 26