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This paper presents the development of a Virtual Instruments Cluster (VIC) to display functional parameters of a stationary platform used for testing of Electric Vehicles (EV). The EV platform contains a 3-phase asynchronous 55 kW electric motor, a DC-AC motor controller, a 96 Volts LiFePO4 battery pack, a 3.3 kW battery charger and a Battery Management System (BMS). The electronic units exchange data between them using the automotive Controller Area Network (CAN) bus, to which a host computer is also connected. In order to get a real-time, comprehensive and intuitive way of monitoring the multitude of functional parameters of the EV testing platform, the proposed VIC is developed in LabVIEW and uses many graphical gauges. It receives all CAN frames from EV electronic units and decodes the information that user needs for. Also, different operating states and fault alarms of the EV testing platform are visually displayed in real-time. Finally, the virtual instrument can also store the acquired information from the CAN bus, which makes it a reliable tool for long-term monitoring and diagnosis of the EV testing platform.

For Internal Combustion Engines (ICE), the control of Air-to-Fuel Ratio (AFR) is done according to the voltage delivered by the oxygen (Lambda) sensor. After starting of engine, the Lambda sensor is cold and cannot generate a useful signal for the injection computer, so it works in open-loop, with an increased fuel consumption and higher levels of toxic exhaust gases. This paper proposes two ways to control AFR during cold starting, an analog circuit and a digital adaptive filtering circuit. In both methods, during the heating period of the Lambda sensor, a periodic signal adapted to the ICE operating regime can be generated to substitute the original Lambda sensor signal, thus the injection computer can be used in closed-loop more quickly, resulting a reduction of fuel consumption and pollution.

Summary: In the field of car electronics, in addition to the harsh conditions of temperature $(-40^{\circ}\mathrm{C}-+130^{\circ}\mathrm{C})$ and wide-spectrum vibrations, there is a danger of the vehicle igniting in the event of impacts producing a short circuit of the electrical conductors, which remain under voltage. The paper describes an automatic disconnection system of the car general power supply made with a modem device produced by Infineon - Gate Tum-Off Thyristor (GTO) - automatically operated by impact-sensitive electronic systems. At the end of the paper are mentioned the problems that occur in the modern supply of vehicles with DC voltage of 42V and the results obtained by the authors in the design of electronic circuits.

Intrusions on entities in a network can be manifested by: identity theft, fraudulent routing, target flooding with protocol messages, and broadcasting an ICMP protocol messaging protocol. Intruders lead to blocking the service for legitimate users, and targets are flooded with unsolicited emails,Protection against such actions can be done with a number of security measures, such as: installing firewalls and installing intrusion detection systems. These safeguards can eliminate or even minimize the likelihood of materializing security threats and prevent attacks on the security features of a system.

The purpose of this paper is to analyze different power devices - emitters of optical flow, from the point of view of optical coupling, emitted optical powers, optical fiber losses and receiver. The research and characterization of the transmission through a power optical system is done using a computer system specialized for the automotive industry. This system/platform can deliver current pulses that are controlled by a computer through a software (it is possible to set different parameters such as pulse repetition frequency, duty cycle, and current intensity). For the experiments a power Fabry Perot 1035 laser diode operating in pulse with μφ 1055 nm, I th = 40 mA, and I op =750 mA was used with a single-mode SFM 128 optical fiber and an EM type optical coupler connected through alignment. Two types of measurements were conducted to demonstrate the usefulness of the experimental structure. In the first case the amplitude of the voltage pulses was measured at the output of an optical detector with receiving diode in a built-in amplifier with a 50 kΩ load resistance. In the second stage measurements were conducted to determine the optical power injected in the optical fiber and received at the reception cell of a power meter. Another parameter of optical coupling that can be measured using the experimental structure is irradiation. This parameter is very important to determine the optimum cutting angle of the fiber for continuity welding.

The system we propose monitors body temperature, heart rate and beside this, it tracks if the person who wears it suffers a faint. It uses a digital temperature sensor, a pulse sensor and a gravitational acceleration sensor to monitor the eventual faint or small heights free falls. The system continuously tracks the GPS position when available and stores the last valid data. So, when measuring abnormal vital parameters the module will send an SMS, using the GSM cellular network , with the person's social security number, the last valid GPS position for that person, the heart rate, the body temperature and, where applicable, a valid fall alert or non-valid fall alert. Even though such systems exist, they contain only faint detection or heart rate detection. Usually there is a strong correlation between low/high heart rate and an eventual faint. Combining both features into one system results in a more reliable detection device.

Laser diodes have a low divergence at output, making it easier to couple them to a fiber "single-mode", making them ideal for long-distance and high-speed links. Lasers are capable of high bandwidth, most are useful for frequencies above 10 GHz or data streams of more than 10 Gb/s. Aligning an optical fiber with a light emitter is a difficult and sensitive issue, thus it is useful to further study and better characterize the alignment of optical devices. The purpose of this paper is to present the realization of a platform for the analysis of the coupling and alignment of optical devices, of the emitted optical power, of the losses on optical fibre and at receivers, of the various devices emitting optical flow. On this platform it is possible to conduct experiments to determine the losses in the coupling optic elements, fibere types, lengths, splitters, connections extended through reflow of zone, receivers.

Optical fiber is a guide for illumination made either on the basis of refraction (Snell-Descartes), for multimode fibers, or as a waveguide itself in the mono mode. Attenuation is an important factor limiting transmission of the signal over long distances. The purpose of this paper is to analyse coupling modes, losses on fibre, and to present results obtained regarding measurements relevant regarding attenuation using a test platform.