Oscar Gomez - Academia.edu (original) (raw)
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Papers by Oscar Gomez
Currently there is a lot of information about power system voltage stability, most of which deal ... more Currently there is a lot of information about power system voltage stability, most of which deal with the methodologies for the detection of the operating conditions that could lead to problems of instability and collapse. However, a subject of great interest for power system planners and operators is the countermeasures that can be applied to mitigate these problems. Thus, this paper presents an inventory of these counter-measures, their description, taxonomy and current research and development areas.
Sensors, 2014
Many driver assistance systems require knowledge of the vehicle environment. As these systems are... more Many driver assistance systems require knowledge of the vehicle environment. As these systems are increasing in complexity and performance, this knowledge of the environment needs to be more complete and reliable, so sensor fusion combining long, medium and short range sensors is now being used. This paper analyzes the feasibility of using ultrasonic sensors for low cost vehicle-positioning and tracking in the lane adjacent to the host vehicle in order to identify free areas around the vehicle and provide information to an automatic avoidance collision system that can perform autonomous braking and lane change manoeuvres. A laser scanner is used for the early detection of obstacles in the direction of travel while two ultrasonic sensors monitor the blind spot of the host vehicle. The results of tests on a test track demonstrate the ability of these sensors to accurately determine the kinematic variables of the obstacles encountered, despite a clear limitation in range.
Sensors, 2012
The accurate perception of the surroundings of a vehicle has been the subject of study of numerou... more The accurate perception of the surroundings of a vehicle has been the subject of study of numerous automotive researchers for many years. Although several projects in this area have been successfully completed, very few prototypes have actually been industrialized and installed in mass produced cars. This indicates that these research efforts must continue in order to improve the present systems. Moreover, the trend to include communication systems in vehicles extends the potential of these perception systems transmitting their information via wireless to other vehicles that may be affected by the surveyed environment. In this paper we present a forward collision warning system based on a laser scanner that is able to detect several potential danger situations. Decision algorithms try to determine the most convenient manoeuvre when evaluating the obstacles' positions and speeds, road geometry, etc. Once detected, the presented system can act on the actuators of the ego-vehicle as well as transmit this information to other vehicles circulating in the same area using vehicle-to-vehicle communications. The system has been tested for overtaking manoeuvres under different scenarios and the correct actions have been performed.
Revista de Ingeniería, 2009
International Conference on Networking, International Conference on Systems and International Conference on Mobile Communications and Learning Technologies (ICNICONSMCL'06), 2006
Much research effort has been dedicated towards securing the sensor-to-sensor radio and data comm... more Much research effort has been dedicated towards securing the sensor-to-sensor radio and data communication in the wireless sensor networks (WSN). However, the survivability of the wireless sensor network must consider vulnerabilities of other components in its end-to-end infrastructure. The WSNgateway which is responsible for data collection and management of a wireless sensor network forms a single point of failure for
Tuesday 17h40-18h30 Makalu POSTER PRESENTATION A5841AI Factors that affect the sag-tension model ... more Tuesday 17h40-18h30 Makalu POSTER PRESENTATION A5841AI Factors that affect the sag-tension model of an overhead conductor Bedialauneta M.T.
Currently there is a lot of information about power system voltage stability, most of which deal ... more Currently there is a lot of information about power system voltage stability, most of which deal with the methodologies for the detection of the operating conditions that could lead to problems of instability and collapse. However, a subject of great interest for power system planners and operators is the countermeasures that can be applied to mitigate these problems. Thus, this paper presents an inventory of these counter-measures, their description, taxonomy and current research and development areas.
Sensors, 2014
Many driver assistance systems require knowledge of the vehicle environment. As these systems are... more Many driver assistance systems require knowledge of the vehicle environment. As these systems are increasing in complexity and performance, this knowledge of the environment needs to be more complete and reliable, so sensor fusion combining long, medium and short range sensors is now being used. This paper analyzes the feasibility of using ultrasonic sensors for low cost vehicle-positioning and tracking in the lane adjacent to the host vehicle in order to identify free areas around the vehicle and provide information to an automatic avoidance collision system that can perform autonomous braking and lane change manoeuvres. A laser scanner is used for the early detection of obstacles in the direction of travel while two ultrasonic sensors monitor the blind spot of the host vehicle. The results of tests on a test track demonstrate the ability of these sensors to accurately determine the kinematic variables of the obstacles encountered, despite a clear limitation in range.
Sensors, 2012
The accurate perception of the surroundings of a vehicle has been the subject of study of numerou... more The accurate perception of the surroundings of a vehicle has been the subject of study of numerous automotive researchers for many years. Although several projects in this area have been successfully completed, very few prototypes have actually been industrialized and installed in mass produced cars. This indicates that these research efforts must continue in order to improve the present systems. Moreover, the trend to include communication systems in vehicles extends the potential of these perception systems transmitting their information via wireless to other vehicles that may be affected by the surveyed environment. In this paper we present a forward collision warning system based on a laser scanner that is able to detect several potential danger situations. Decision algorithms try to determine the most convenient manoeuvre when evaluating the obstacles' positions and speeds, road geometry, etc. Once detected, the presented system can act on the actuators of the ego-vehicle as well as transmit this information to other vehicles circulating in the same area using vehicle-to-vehicle communications. The system has been tested for overtaking manoeuvres under different scenarios and the correct actions have been performed.
Revista de Ingeniería, 2009
International Conference on Networking, International Conference on Systems and International Conference on Mobile Communications and Learning Technologies (ICNICONSMCL'06), 2006
Much research effort has been dedicated towards securing the sensor-to-sensor radio and data comm... more Much research effort has been dedicated towards securing the sensor-to-sensor radio and data communication in the wireless sensor networks (WSN). However, the survivability of the wireless sensor network must consider vulnerabilities of other components in its end-to-end infrastructure. The WSNgateway which is responsible for data collection and management of a wireless sensor network forms a single point of failure for
Tuesday 17h40-18h30 Makalu POSTER PRESENTATION A5841AI Factors that affect the sag-tension model ... more Tuesday 17h40-18h30 Makalu POSTER PRESENTATION A5841AI Factors that affect the sag-tension model of an overhead conductor Bedialauneta M.T.