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» Expandable GSM and GPS systems simulator

JANUSZ POCHMARA

JAKUB PAŁASIEWICZ

PIOTR SZABLATA

Wireless communications systems of the next generation are expected to provide its users with new services. Supporting this problem requires new engineers which will project new technological solutions for mobile communications. We observe, this is in the fact, that many people in the not so distant future will start to see the mobile phone as an alternative to a PC. The mobile phone will become their digital life. The main problem is education of the future engineers and depends on the good education. This task is difficult in practical realization. Roughly half of the world’s population already has some type of mobile phone, making it the most wide spread technology and most common electronic device in the world. Un-tapping this ubiquitous technology creates a wide array of educational possibilities. In our opinion one of the best ways to solve this problem is learning future engineers with new technologies with more practices and exercises. Therefore we construct a simulator of the GSM and GPS system based on integrated sophisticated module. In our solution with simulator we will learn: (1) about the different mobile phone technologies; (2) how to design learning activities for mobile phones; (3) pedagogical and theoretical frameworks for mobile learning. This paper is organized as follows. In Sections “System Model" and “Software Specification" we describe the system model. Section “Computer Application" is devoted to the detailed description of the investigated. Finally, in Section “Conclusion" we present results, which have been obtained for the GSM and GPS systems. We conclude our paper with a discussion on results. Hardware specification Device uses integrated GSM/GPRS+GPS module. Small and functional device is compatible with industry standards. This makes it suitable for using it with other hardware parts (for example: microcontroller, PC). It was certified by MET Laboratories, Globa[...] więcej»
w zeszycie ELEKTRONIKA - KONSTRUKCJE, TECHNOLOGIE, ZASTOSOWANIA 2010/11

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» Complex tracking circuit design

Janusz Pochmara

Jakub Pałasiewicz

Piotr Szablata

The wireless market continues to evolve at an ever growing pace. Increased consumer demand for smart phones, together with the widespread adoption of new form factor devices such as tablet PCs, is providing a dynamic landscape. Application stores, together with new, feature-rich mobile devices and enhanced network capabilities, are delivering new business models and compelling user experiences for consumers [1]. Wireless navigation is also a good example of intuitive product development. Turn it on and it tells you where you are. Put in the destination and it tells you how to get there. In our opinion presented project, called CTCD, is probably most complete and affordable GPS unit available today. Our proposition combines GPS monitoring with GPRS transmission to tracking application. This tracker provides tracking, reporting and monitoring, capable of updates every friction of seconds. Our unit works worldwide with both GPRS/SMS standards. In this paper we present the most compatible working modes to present vast possibilities of this project. Hardware specification Popular solution for this kind of device is to combine GSM or GPRS module with GPS chip and Intel 8051 compatible microcontroller [2]. There are also modules providing both of these technologies - GPS/GPRS+GPS. One of the biggest problems with those solutions are: poor support from developers side, too simple software applications and slow working databases. Those features should enable using this device by many users and giving them feedback information online. Main advantage of this kind of construction is that only a few implementations of on-market GSM modules are using it to its full potential. Another challenge is to construct device small, energy-saving and stand-alone, which can work very long on one fully-loaded battery cell. Therefore, when hardware device is used only as standalone sender, some functions, like headphones or LCD display, are disabled. [...] więcej»
w zeszycie ELEKTRONIKA - KONSTRUKCJE, TECHNOLOGIE, ZASTOSOWANIA 2012/3

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» FPGA implementation of the Predator-Prey algorithm with adrenalin boost based on a Spiking Neural Network

Igor Karoń

Karol Gugała

Janusz Pochmara

Andrzej Rybarczyk

Spiking neural networks use the element of time in communicating by sending out individual pulses [1]. Spiking neurons can therefore multiplex information into a single stream of signals, like the frequency and amplitude of sound in the auditory system [2, 3]. There are currently a lot of papers about using Spiking Neural Network in robotic [4] but most of them focuses on using neural networks to identify and avoid terrain obstacles or finding the shortest way to signal source: [5-8]. Due to natural network properties, it is an interesting problem to implement some of the biological patterns occurring both in the world of animals and humans. One of these behavioral patterns is a natural instinct to escape threats that have natural origins (e.g. forest fires, floods) and from the world of animals (e.g. escape from predators). In nature, one can see how animals have developed some behaviors that help them survive. The ones with better strategies live through, and pass on their techniques to children [9]. Accurate understanding and mapping of similar behavior allow both better understanding of brain functions and enable use of these schemes as a base for future research projects. Presented paper focus on prey behavior controlled by Spiking Neural Network and modified version or Predator-Prey algorithm. In order to increase the efficiency of the algorithm some behaviors based on the adrenaline have been implemented. As admission to our future work hardware implementation of Spiking Neural Network in FPGA was presented. Spiking neuron models Neurons are elementary information processing units in brain. Structure of biological neuron and synapses has already been well described in many other publications [5, 10, 11]. The following work uses the Leaky Integrate-and-Fire model. LIF is counted as a simplified version of Hodgkin-Huxley model. This model was chosen because: of both low computational complexity, and ability of direct pr[...] więcej»
w zeszycie ELEKTRONIKA - KONSTRUKCJE, TECHNOLOGIE, ZASTOSOWANIA 2011/12

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» Ideal traffic system creator

Janusz Pochmara

Aleksandra Świetlicka

An effective distribution of goods must assure the movement of products and materials from the supplier’s warehouses to the customer’s objects at the possibly lowest cost. This means that the distribution costs, such as the costs of transport, supply and administration are to be reduced, which requires the improvement of the customers service standards at the same time. The improvement of customers service standards manifest mainly in on-time delivery. The on-time delivery is connected with formation of the transport standards in order to keep it on time [1]. In logistics, every distribution system is a fundamental component of a market economy which must consist of: ● tracking and tracing system, ● monitoring with GSM/GPS communication system, ● alerts system, while is transit, ● route optimization in real time system, ● safeguarding people system, ● pay per use possibility. Combining these systems together with wireless technology makes it possible to track down and trace vehicles, goods shipments, employees and mobile resources. It therefore supports logistics companies that need to constantly monitor the flow of goods they transport. This also implies an organization and synchronization of flows through nodes and network strategies. When drivers get stuck in a traffic jam, their level of stress rises rapidly. It is connected with anxiety of being late or missing an appointment (time and money loss), impossibility to predict a journey time, wasting fuel or breathing in exhaust fumes [2]. Consequently, stressful life can lead to many diseases, such as heart attack, increased blood pressure, migraine headaches etc. [...] więcej»
w zeszycie ELEKTRONIKA - KONSTRUKCJE, TECHNOLOGIE, ZASTOSOWANIA 2012/4

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