Mohammad Shidujaman | Tsinghua University (original) (raw)

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Papers by Mohammad Shidujaman

— The purpose of this paper is to illustrate the development process of a Wireless Charging Robot... more — The purpose of this paper is to illustrate the development process of a Wireless Charging Robot (WCR) according to scenario-based design approach. In the previous work, we have introduced the prototype design and its working functionality as a combination of state of the art in the field of wireless power transmission and mobile robotics. The prototype has designed and examined for various usage scenarios. This work is within our research on WCR where we are attempting to develop an advanced WCR design, considering the example of various practical scenarios for the smart environment. A mobile robot is equipped with a wireless charger and navigates in the environment of various battery nodes in order to charge the network in an efficient way. Hence, we present a mathematical model to find the shortest route for WCR. Furthermore, we also address the cultural influence and reactions of wireless charging robot with a survey result based on country sociological impact.

The purpose of this paper is to illustrate the development process of a wireless charging robot a... more The purpose of this paper is to illustrate the development process of a wireless charging robot according to scenario based design approach. The robot is designed and examined for various usage scenarios. This work is within our research on wireless charging robot (WCR) where we are attempting to develop an advanced WCR, considering the example of various practical scenarios. In this research a novel system is introduced as combination of state of the art in the field of wireless power transmission and mobile robotics. Furthermore, the cultural influence and positive reaction of wireless charging robot with the survey result based on country sociological impact has been presented. A mobile robot is equipped with wireless charger and navigates in the environment of various battery nodes in order to charge the network in an efficient way. The presented research in this paper illustrates design and development of real functional system with the aim to change the traditional way of carrying the battery to charger into navigating the charger to batteries. Even though some theoretical research on this field was available however the working prototype has been not developed yet hence we focused on the practical application and brought the concept into practice. We initiated the research by reviewing the existing wireless power transmission technologies and later on equipped mobile robots with QI standard compatible WPT. The complete prototype architecture from both the hardware and software aspects is presented in this paper. Moreover, further future design concepts presented based on the aspects of user location. We believe such architecture can be a useful testbed for bringing such technology from theory to practice. The focus of this paper is to show how cultural robotics aspects can influence the engineering design of a novel robotic platform where the cultural aspect is considered during the design process instead of developing the system first and adopting it in various usages afterwards.

In this paper a novel system is introduced as combination of state of the art in the field of wir... more In this paper a novel system is introduced as combination of state of the art in the field of wireless power transmission and mobile robotics. A mobile robot is equipped with wireless charger and navigates in the environment of various battery nodes in order to charge the network in an efficient way. The presented research in this paper illustrates design and development of real functional system with the aim to change the traditional way of carrying the battery to charger into navigating the charger to batteries. Even though some theoretical research on this field was available however the working prototype has been not developed yet hence we focused on the practical application and brought the concept into practice. We initiated the research by reviewing the existing wireless power transmission technologies and later on equipped mobile robots with QI standard compatible WPT. The complete prototype architecture from both the hardware and software aspects is presented in this paper. We believe such architecture can be a useful testbed for bringing such technology from theory to practice.

Bangladesh is densely populated country with a population of 16 core and small area about 1, 47,5... more Bangladesh is densely populated country with a population of 16 core and small area about 1, 47,570 Square-Kilometer. Among these large population only a few section are taking the blessings of power. But now at a stage government can’t give the power even to that special section. Because day by day population is increasing and also power demands is also increasing. Governments are trying to meet up the power crisis in Bangladesh by taking various steps. Like small (10-20MW) power plants, IPP, Rental power plant etc. But these are not a permanent solution. More over these rental and IPP are mainly oil and gas based, which are very costly and not very efficient. Besides these government are going with coal based power station and small scale renewable energy. But coal based power station are required very large space, its initial cost is high and create serious environmental threat. Renewable energy is not yet developed and its ef-ficiency is very poor. Though there are many problems and threats but Nuclear Power Plant can be a permanent solution for Bangladesh. Bangladesh government is now going for nuclear power plant and recently they have taken a project called Rooppur Nuclear Power Plant Project (RNPP) which is already approved in the cabinet meeting. The purpose of this paper is to study the feasibility of RNPP.

Nowadays for power generation, environment is a major consideration. The heart of power generatio... more Nowadays for power generation, environment is a major consideration. The heart of power generation is power station. At present there are almost above 40(Both Government & Rental) power station in Bangladesh. Among these 80% of power station is gas based. Rest of the 20% is coal, liquid and furnace oil based. Bangladesh has only one Hydraulic power station. These gas and coal based power stations are giving adverse effect in Bangladesh. The main emissions from coal combustion at thermal power plants are carbon dioxide (CO), nitrogen oxides (NO), sulfur oxides (SO), chlorofluorocarbons (CFCs), and air- borne inorganic particles such as fly ash, soot, and other trace gas species. Carbon dioxide, methane, and chlorofluorocarbons are greenhouse gases. These emissions are considered to be responsible for heating up the atmosphere, producing a harmful global environment. It is known to all that hydro power station is a clean source of energy, but it has also some ecological and environmental effect. Dhaka is one of the top polluted city in the world. So for power generation if the environmental effect is not considered then Bangladesh will be in great trouble. The purpose of this paper is to discuss the present and future possible environmental effect of power generation in Bangladesh.

A self-design anemometer can provide accurate reading compared to any other anemometer which is f... more A self-design anemometer can provide accurate reading compared to any other anemometer which is found in market. Any adjustable speed drive uses an incremental shaft encoder or a sensor and an electronic circuit for rpm as well as wind velocity estimation. The method of counting pulses generated by a sensor in a period of time produces a high precision velocity or rpm estimate in the high speed range. The purpose of the project is to measure wind speed with a self-design low cost anemometer in between campus-4 and 5 of American
International University-Bangladesh located in Banani, Dhaka at
23.794503°N 90.406175°E and 23.794278°N 90.405611°E where
natural wind is available and it is possible to make small scale power generation. This anemometer is able to measure the wind velocity and provide voltages which are linearly proportional. Besides efforts have been taken to reduce the cost of anemometer as much as possible.

Wireless power transmission (WPT) has been attracting a wide range of subjects in various fields ... more Wireless power transmission (WPT) has been attracting a wide range of subjects in various fields and also become a highly active research area because of their potential in providing high technology to our daily lives. The wireless power transmission will be mandatory to use in the near future because this technology enables the transmission of electrical energy from a power source to an electrical load across an air gap without interconnecting wires. In this paper, we carry out a pilot study to present the existing technologies of wireless power transmission, their recent technology as well as its future trends. Furthermore, we also describe plenty of applications in wireless transmission.