This paper reviews the research work done on the response time analysis of messages in controller area network (CAN) from the time CAN specification was submitted for standardization (1990) and became a standard (1993) up to the present (2012). Such research includes the worst-case response time analysis which is deterministic and probabilistic response time analysis which is stochastic. A detailed view on both types of analyses is presented here. In addition to these analyses, there has been research on statistical analysis of controller area network message response times.

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Ultra-Wideband (UWB) communication system provides high accurate localization due to the high multipath resolution capacity. For Ultra-Wideband (UWB) Localization systems, time-based schemes namely Time of Arrival (TOA) and Time Difference of Arrival (TDOA) provide very good accuracy due to the high time resolution (large bandwidth) of UWB signals. Due to the inherent suitability aad accuracy of time-based approaches for UWB systems, particularly the TDOA technique, it is proposed as the appropriate UWB localization technique for the precision automobUe parking system. UWB pulse of 0.5 ns pulse width is simulated. Tests measurements are conducted using Impulse Radio UWB transceiver test setup. The TDOA values are measured for different positions of tag and reference nodes. Time-delay estimation is obtained by generalized cross correlation method and position esti....tion is obtained by direct method (DM) using hyperboHc navigation. The precision of the obtained position estimation is improved by an iterative Davidon-Fletcher-Powell (DFP) algorithm. The performance of the technique is analysed by determining the mean square error for various reference nodes densities. The proposed system is composed of UWB nodes, UWB tags and an UWB location server. With UWB tags, equipped only with transmitters, on targets and UWB nodes with both transmitters and receivers, installed on infrastructure, the system calculates the position of the tags precisely.

Fire and gas safety (FGS) system are important tools for safeguarding process plants and production facilities that handle flammable and toxic materials. In general, a conventional fire and gas system has several shortcomings, such as weakness to noise and false alarms. In order to overcome these shortcomings, controller area network (CAN)-based FGS system has been implemented in our previous work. Further, considering that FGS systems are employed in hazardous environments, where wireless implementation of CAN is desirous, an attempt to make CAN wireless is carried out for these systems in this work, by using the radio protocol IEEE 802.15.4 to communicate CAN messages wireless. This work is a continuation of our previous work. Here the wired CAN interface is converted to wireless CAN and response time analysis of the system is done using CANoe v7.6.

In this paper, an Embedded System for Cash Deposit at ATM machine has been proposed. ATMs available nowadays facilitate services like cash withdrawal, transaction details, account balance, card to card money transfer. The proposed system will be installed in the ATM machines already available and will enable customers to deposit money into their account without going to bank. This system consists of currency Recognizer and Currency Counter and User interface. This system will facilitate customers to deposit cash at ATM available in their locality.