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The concept of underwater docking stations has long been proposed to support the long term deployment of AUVs, but the number of successful solutions is still very disappointing. Hovering type AUVs can navigate arbitrarily slow, simplifying the docking maneuver and the requirements for the receiving structure. This paper describes a docking system that was developed to extend the mission duration...
Evaporimeter, a scientific device is used to measure the rate of water evaporation into the atmosphere from a wet surface. Using this instrument, we are able to calculate irrigation scheduling, crop selection to the different geographical area and future prediction of drought. Now a day's the compressive development of wireless sensor and Internet of things (IoT) can be embedded with manually operated...
Vehicular traffic is tremendously increasing around the world, especially in small and large urban areas. The resulting traffic has become a key issue and emergency as a recent research topic in automation in Transportation. Currently traffic lights are controlled only in important junctions and increasing their number is clearly infeasible due to high costs of installation and maintenance. A new...
The fabrication mechanisms of MEMS helps us to develop diaphragms for various applications such as micropumps, microphones, other precise pressure sensors, etc. The fundamental working principle behind all of these devices is based on the pressure applied onto the plates of the diaphragm that causes it to deflect. A comprehensive literature review has been presented in this work focusing on the research...
This paper introduces a diffusion strategy for the multichannel active noise control. The diffusion strategy is designed to reduce the computational complexity by distributes computations to all nodes of multichannel active noise control system. Thus, the multichannel filtered-x normalized least mean square algorithm, which is the simplest way for real active noise control environments is used as...
In order to improve the safety factors of MSV (Manned Submersible Vehicle) and shorten the pilot training cycle, the real hardware and software system combine with the modelling and simulation calculation of its sensors, equipment, actuators submersible ontology and motion status in deep sea environment, realizing the semi physical simulation system. First of all, the system model is built and hardware...
This paper presents a high precision gesture recognition system that leverages the Doppler effect of ultrasound to sense in-air hand gestures. The system can precisely identify a wider variety of gestures than other systems without any modification to consumer laptops. The system recognizes quantitatively detailed and complex movements from the signals reflected by a moving body. A Hidden Markov Model...
This paper presents the prophecy of parking area in parking management system using Geographic Information System (GIS). Parking area is generated by using Google SketchUp Pro 2015. One of the most outstanding and major problems in the parking management system is to search for an empty parking space. In recent years, there has been an expanding enthusiasm from drivers to have access to real-time...
The smart walking stick, the Assistor, helps visually challenged people to identify obstacles and provide assistance to reach their destination. The Assistor works based on the technology of echolocation, image processing and a navigation system. The Assistor may serve as a potential aid for people with visual disabilities and hence improves their quality of life. There is a lot of work and research...
This paper proposes an autonomous self-parking system in specific parking area. In this system, the vehicle can drive itself and find the parking spaces to park automatically using a smartphone. The system consists of parking place searching, steering control, path tracking and wireless communication. According to the type of the parking space which has recognized by ultrasonic scanning, the system...
In this study a new noise source is proposed as a one of renewable energy sources in energy harvesting. Disk Jokey (DJ) is a common device in celebrations and other events. Converting the produced noise from DJ to electric energy by using a suitable piezoelectric transducer is the main aim of this study. Piezoelectric sensors are used to convert the sound waves to electric charges. Piezoelectric sensor...
Advances in computer hardware and sensing technologies have enabled the design and development of low-cost autonomous underwater vehicles (AUVs). The reduced cost of new platforms such as the Bluefin SandShark present the opportunity for more frequent and high-risk AUV-based experiments and reduce the barrier to entry for multi-vehicle operations. The smaller size of these new vehicles compared to...
Global demand for air travel has increased significantly by the emerging economics. However, the Flight accident is major threat to human life. On many occasions the accident happened when aircraft fly over the ocean, because 71% of the Earth's surface is covered by ocean. This paper describes a proposal to develop full automated underwater vehicle system for Search and Rescue (SAR) application within...
Approximately 12% of the world's oceans are covered by ice. Understanding the physical processes, ecosystem structure, mixing dynamics and the role of these inaccessible environments in the context of global climate change is extremely important. Autonomous Underwater Vehicles (AUVs) play a major role in the potential exploration of these water systems due to the challenges of human access and relatively...
Wearable Devices (WD) are systems designed to do a specific task, these system are embedded in daily life personal objects. Usual transducers in wearable devices involve accelerometers gyroscopes, cameras etc. In WD is required to design efficiently in terms of power. Therefore, a new trend incorporates acoustic transducer that does not need a power supply to sense. They are very cheap and easy to...
This paper presents an indoor locating system on wearable glasses for people with visual impairment. The proposed system is implemented by visual marker recognition. Because people with visual impairment have difficulty searching markers, this paper proposed a custom color marker which is detectable in 15 m maximum when its size is 400 cm2. The marker recognition can be processed in real-time on a...
Electrical arc faults that occur in photovoltaic systems represent a danger due to their economic impact on production and distribution. In this paper we propose a complete system, with focus on the methodology, that enables the detection and localization of the arc fault, by the use of an electromagnetic-acoustic sensing system. By exploiting the multiple emissions of the arc fault, in conjunction...
Object identification is an important task of military Intelligence Surveillance and Reconnaissance (ISR) systems. It plays an integral role during threat detection and situation assessment in the monitored area. This paper considers a ground ISR system comprising distributed Unmanned Ground Sensors (UGS), which perform military vehicle identification based on acoustic signal analysis. Each UGS operates...
In this paper, signals for acoustic beacons with M sequence are evaluated with various parameters for self-localization of mobile robot. The effect of (i) baud rate, (ii) carrier frequency and (iii) order of M sequence on DOA estimation error and localization error are evaluated by computer simulation. As a result, localization is possible with same class or more precision compared to the result from...
Passive acoustic localization is an important technique in a wide variety of monitoring applications, ranging from healthcare over biological survey to structural health monitoring of buildings. If the subject of interest emits a recognizable sound and is picked up by a distributed array of microphones it is possible to measure the difference in arrival times and reconstruct the source positions....
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