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Archived GPS ephemeris data for years 2000–2016 is investigated by cleansing and precision measures. The goal of this work was twofold: (1) to reveal and remove incorrect ephemeris data so that the cleansed data is as close to the real broadcasted data as possible, and (2) to analyse the quality of the cleansed data by comparing ephemeris based satellite locations to true locations. Our findings show...
The major threats witnessed by mankind in recent years, demands very accurate and trustworthy personal tracking system (PTS). Using the advancement in the current technology, it becomes a promising solution to meet the above requirement. In this research, an attempt is made to integrate both GPS and GSM technologies to detect and track the position of the target (mankind). Initially, the position...
The need for efficient public transportation system such as buses is rapidly increased due to the increasing in population, the passengers need to know the accurate arrival time of the particular bus to particular station and then plan their journey from their home. Fuel monitoring have been the major problem that most of bus companies looking to solve. This paper developed a bus tracking and monitoring...
The custom of pilgrimage is widespread all over the world, e.g. Kumbh Mela in India, Hajj in Saudi Arabia. These are the peaceful gatherings wherein, millions of people from all corners of the world come to perform their holy rituals. However, during these events, pilgrims getting lost in the crowd, medical emergencies and stampede are likely to happen. In such incidents, authorities involved in the...
Ionospheric irregularities if persisted may lead to change in phase and amplitude of satellite signals and hence, ionospheric scintillation. Strong scintillation may induce loss of signal, cycle slips or excessive phase noise. The errors incurred by the radio signals could be disastrous especially to very sensitive agencies that make use of it if not properly managed. It is therefore pertinent to...
Location systems have known a very large scale spreading and developing in the last period, being known mainly through the navigation applications which ensure route guidance accordingly to the current position. This development was made possible by combining different localization modes (GPS, GLONASS, GPS-A etc.), which conduced to the precision required for developing a large number of specific...
Positioning errors of stand-alone GNSS can be reduced with different real-time augmentation approaches. For many navigation and positioning applications, Satellite-Based Augmentation System (SBAS) and Differential code-based GNSS (DGNSS) can offer substantial improvement in the positioning accuracy. Finland is covered by EGNOS (European Geostationary Overlay Service) even though it is lying at the...
This paper describes a system for helping teen drivers track there experience while training to obtain their driver's license. The proposed system is a portable in-vehicle device run by an embedded microcontroller that logs student driver hours and mileage and a PC program to create reports from the recorded data. The proposed device uses a GPS receiver to track distance traveled and time spent driving.
Speed is one of the basic reasons for vehicle accident. Many lives could have been saved if emergency service could get accident information and reach in time. Nowadays, GPS has become an integral part of a vehicle system. This paper proposes to utilize the capability of a GPS receiver to monitor speed of a vehicle and detect accident basing on monitored speed and send accident location to an Alert...
The paper presents an experimental study of the effects of in-channel interference on the performance of a CGPS receiver, which is a node of a large geodetic surveillance system in the Neapolitan volcanic area, in the South of Italy. A suitable reconfigurable experimental setup has been developed, to emit controlled interfering signals chosen on the basis of previous studies and at the same time to...
GPS technique is widely adopted in many fields, it is particularly important to receive and handle GPS data rapidly and accurately using computer. In this paper, the GPS is introduced firstly; then the data format and the information components of GPS message are analyzed; finally, source codes in VB 6.0 language to process GPS data are given.
There are approximately 50 million maritime style containers entering and leaving ports in North America every year and 500 millions worldwide [8]. The interiors of such containers are rarely inspected. With market globalization, a large amount of these containers enter North America on a daily basis. Such containers may include contraband or dangerous items that present an economic or security risk...
In order to protect pipeline transportation and prevent from manmade damages, it is very important to carry out such researches as prevention monitoring and accurate locating. Designed the system project of pipeline prevention monitoring, introduced its locating principle, the acoustic sensors and transducers are located at the end of each segment along the pipeline, as soon as damages appear in the...
According to the current status of water level monitoring of inland river, this paper presents and designs a multi-sensor integrated dynamic system for mobile water level measurement, which is based on CORS(continuous operational reference system) GPS(global positioning system), GPRS(general packet radio service), PDA(personal digital assistant) technology as well as a post processing platform. The...
Today's Global Navigation Satellite System (GNSS) receivers predominantly utilize hardware based digital signal processing. This approach generally provides high performance and low power consumption GNSS receivers but on the other hand limits the flexibility as the receiver functionality is fixed. The aim of this paper is to present an overview on the ipexSR real-time GNSS software receiver developed...
A vehicle monitoring system communication protocol is designed in this paper. The protocol is divided into three layers and each layer of protocol and protocol streams have been carried out a detailed description, and finally an application example is given.
In today's society, missing child cases increases rapidly. Child care is a critical issue in solving this epidemic. Various systems and methods have been implemented in solving this crisis. In this paper, the global position system (GPS) based child care system is proposed to solve this problem. This system consists of two nodes; child and parent nodes, each carried by the child and parent respectively...
Based on the platform of 3GS (GPS/GPRS/GIS), a method of designing the MIS of patrol police is proposed in this paper which offers a convenient and real-time monitoring platform for the administration of patrol police. The proposed method can extent the monitoring range and promote the supervising efficiency of patrol police. Oracle9i adopted in this paper to save the spatial and attributive data...
The mining slope safety is one of the important problems should be solved in all mining problems. Mining landslide which caused by slope deformation often produces great influence on mining project construction and production, even result in the loss of human lives. The paper links with practical circs of one larger-scale opencast mine, discussed the system of GPS slope safety monitor of opencast...
This paper describes a design of a data logger based system dedicated to vehicle trajectory monitoring. The system evaluation is based on prototyping an embedded application. The adopted architecture allows tests and applications and results are obtained with a set of constraints. In this multisensors architecture, a GPS receiver is used for the absolute localization. In order to integrate the GPS...
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