ITS

Tēma: Inteliģentās (viedās) transporta sistēmas

Literatūra

Next Generation Wired Intra-Vehicle Networks, A Review: http://cvrr.ucsd.edu/publications/2013/ShaneTrivedi_IV13.pdf

Abstract — Automotive electronics is a rapidly expanding area with an increasing number of driver assistance and infotainment devices becoming standard in new vehicles. A review of current networking standards within vehicles reveals a fragmented and proprietary situation with several standards such as MOST, CAN and LVDS dominating, all of which are currently being used by various vehicle manufacturers. Due to the cost of employing a range of networking standards, there is a general desire within the automotive industry to converge on the use of the 802.3 Ethernet for all in-vehicle communication between devices. The introduction of in-vehicle cameras to provide driver assistance applications and the associated high bandwidth requirements of multi camera sys- tems has accelerated the demand for a unifying automotive network architecture. This paper presents an overview of current research present in the literature and identifies trends in the field for the future.

Low-Frequency RFIC Solutions for Tire-Pressure-Monitoring Systems: http://www.digikey.com/us/en/techzone/wireless/resources/articles/low-frequency-rfic-solutions.html

A tire-pressure-monitoring system (TPMS) provides early warning of abnormal tire pressure or failure. Used separately or in conjunction with other vehicle electronic systems, a TPMS serves an essential role for passenger safety, vehicle handling, and tire lifetime. At the heart of most TPMS designs, RF devices serve a fundamental function in communicating tire pressure data used by vehicle safety systems to alert drivers. For building integrated, standalone, and add-on TPMS devices, engineers can take advantage of available devices from manufacturers including Atmel, Maxim Integrated Products, Silicon Laboratories, and Texas Instruments, among others.

TPMS systems function directly by monitoring tire pressure or indirectly by using the vehicle's anti-lock system to detect changes in rotational speed associated with the decreased radius of a deflated tire. Direct methods (the subject of this article) rely on low-frequency RF devices to transmit tire pressure measurements to vehicle safety management systems.