Wireless Sensor Data Logging System Design

Wireless Sensor Data Logging System Design is a standalone electronic sensor device that captures and stores data through wireless communication. This system comprises two main integrated components; the Radio Frequency module and the Microcontroller based system. The main goal of this project is to design and construct a data logging system that effectively monitors the device's measurement values. In real life applications, most data monitoring system is a passive system. This type of system requires manned guarding on site to manage the devices. Therefore, a standalone data logging system offers a better enhancement system to replace the manned guarding method. The standalone data logger system can be applied by leaving the device alone in any place that requires the measurement of humidity and temperature. These data can be retrieved from EEPROM and transferred to a PC whenever needed by a user. A radio frequency module enables these data travels through wireless transmission medium, whereas the serial communication interface enables communication between the devices and PC. For diverse applications, an alarm system can be implemented if assets and security are the major concerns. The final report presents the development of a data logger system which is an integration of radio frequency module and the microcontroller-based system. The system monitors the device's measurement value via a Graphical User Interface. Basically, the system introduces a RF module to replace the hard wired scheme and produce a dynamic data transmission system. It is geared up with a PICI6F877A microcontroller to drive the outputs besides providing communication between devices and a PC. Overall, the project is the best platform to improve the traditional monitoring system and ignites another innovative invention in the future

PID-based temperature control device for electric kettle

A normal electric kettle usually is intended to boil water until boiling point and cannot be controlled. Most of the kettle does not provide the temperature display for user to track the current temperature reading. Thus, this project is inspired from the shortcoming of most kettles that are sold at the market. By using Arduino microcontroller, a device is developed to control water temperature inside electric kettle. To provide automated temperature control, PID controller is chosen since it can provides precise water temperature control with less fluctuation. The device is also equipped with the display of the current water temperature and desired temperature. The device is tested to an electric kettle and the performance of PID controller in controlling water temperature is compared to on-off controller. An analysis is performed based on the amount of fluctuation with respect to desired temperature to verify the efficacy of the designed circuit and controller. It is found that the developed device and PID controller are capable to control the water temperature inside kettle based on the desired temperature set by user with less amount of fluctuatio

Prototipe Penentu Sudut Elevasi Lengan Meriam Secara Nirkabel Menggunakan Motor Langkah Berbasis Mikrokontroler

Permasalahan yang biasa timbul pada pengendalian lengan meriam adalah kurangnya akurasi sudut yang terbentuk dan faktor keamanan dari operator meriam itu sendiri. Dengan mendisain suatu sistem kendali berbasis komputer yang dapat menghitung dengan teliti dan cepat, serta memanfaatkan teknologi nirkabel permasalahan itu dapat diatasi. Prototipe yang dibuat ini cukup sederhana, terdiri dari komputer dengan Bluetooth terpasang, modul bluetooth, mikrokontroler, motor langkah dan rangkaian elektrik penggerak motor langkah. Motor langkah digunakan untuk menggerakkan sistem mekanis baik secara vertikal maupun horizontal. Dari data pengukuran diperoleh karakteristik alat ini yaitu akurasi sudut vertikal lebih baik saat sudut elevasi melebihi 14.5⁰, sedangkan akurasi sudut horizontal lebih kecil saat sudutelevasi melebihi 180⁰, untuk tingkat kepresisian alat, sudut vertikal memiliki nilai ketidakpastian 0 sehingga untuk pengulangan dengan kondisi yang sama diperoleh nilai yang sama, sedangkan untuk sudut horizontal nilai ketidakpastian akan semakin besar saat sudut elevasi lebih dari 180⁰. Prototipe ini bekerja cukup baik dengan jarak maksimum antara komputer dan motor langkahnya 7 meter tanpa ada media penghalang, dengan tidak mempengaruhi sudut elevasi yang terbentu

Wireless Sensor Data Logging System Design

Wireless Sensor Data Logging System Design is a standalone electronic sensor device that captures and stores data through wireless communication. This system comprises two main integrated components; the Radio Frequency module and the Microcontroller based system. The main goal of this project is to design and construct a data logging system that effectively monitors the device's measurement values. In real life applications, most data monitoring system is a passive system. This type of system requires manned guarding on site to manage the devices. Therefore, a standalone data logging system offers a better enhancement system to replace the manned guarding method. The standalone data logger system can be applied by leaving the device alone in any place that requires the measurement of humidity and temperature. These data can be retrieved from EEPROM and transferred to a PC whenever needed by a user. A radio frequency module enables these data travels through wireless transmission medium, whereas the serial communication interface enables communication between the devices and PC. For diverse applications, an alarm system can be implemented if assets and security are the major concerns. The final report presents the development of a data logger system which is an integration of radio frequency module and the microcontroller-based system. The system monitors the device's measurement value via a Graphical User Interface. Basically, the system introduces a RF module to replace the hard wired scheme and produce a dynamic data transmission system. It is geared up with a PICI6F877A microcontroller to drive the outputs besides providing communication between devices and a PC. Overall, the project is the best platform to improve the traditional monitoring system and ignites another innovative invention in the future

IoT based smart fan controller and fire prevention in computer laboratory

A Project Report Submitted in Partial Fulfillment of the Requirements of the Award the Degree of Master of Science in Embedded and Mobile Systems of the Nelson Mandela African Institution of Science and TechnologyComputer laboratory plays the role of key elements with high interest for different categories of populations. Event of fire, smoke, heat and water leakage when occurs could cause a big loss for business continuity. Their equipment is very expensive and its usage is more profitable to the population who used it. Many computer laboratories in the East Africa community region are equipped with equipment for protection against fire, smoke, and heat such as fire extinguishers, fans, and smoke detectors. However, when equipped with that equipment of protection, a system for monitoring and controlling the computer laboratory environment and warning the users in real-time is not yet implemented. This study aimed to develop an automated computer laboratory that would control and monitor the computer laboratory environment from the incident of fire, heat, smoke, and water leakage. The developed system is divided into three nodes which communicate separately with one database in common where the flame sensor is used to detect fire and allow the turning on automatically of a fire extinguisher in case of fire detection, DHT22 and ultrasonic sensor are used for management of fan controller, allowing to turn on automatically fan controller when there is high temperature and if there is a presence of a person, smoke and water sensors are used to detect the presence of smoke and water leakage. NodeMCU ESP8266, ESP32 WROOM-32D as a microcontroller, access point, and software are used to accomplish the development of that system. Different actions of warning users such as triggering buzzers and sending emails are done when fire, smoke, and water leakage are detected, email is sent to the users when there is a temperature more than 25℃. ThingSpeak cloud is used for the analysis of data from sensors, control of fire extinguisher and fan controller were done via mobile application and web applications. A prototyping methodology was used. The study aimed at interviewing 80 individuals based on their cluster. However, 64 individuals accepted to respond to our questionnaires. Results showed that 57.81% of females were interested in the interview compared to 42.19% of males. From the results which come of testing the prototype, it shows that the variation of temperature varies between 23℃ and 27.60℃, 11 times of fire detection, and 33 times of smoke detection. The developed system for IoT-based smart fan controllers and fire prevention in computer labs with its supported equipment will contribute to securing and protecting the computer laboratory against fire, smoldering, heating, and water leakage

Every sign of life

Thesis (Ph. D.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2003.MIT Institute Archives copy: pages 151-[182] bound in reverse order.Includes bibliographical references (p. 142-150).Every Sign of Life introduces an approach to and motivational schema for personal health monitoring. It is an exploration of how to make information collected by personal health-monitoring devices fun and engaging, and consequently more useful to the non-specialist. In contrast to the common methodology of adding game elements to established biofeedback systems, the Every Sign of Life approach is to design and build games that use biosensor information to effect the game environment. This work tests the hypothesis that fun (the joy of learning, achieving, competing, etc.) is a way to achieve the goal of self-efficacy; to induce people to take care of their own health by altering their habits and lifestyles. One result is a basic architecture for personal health-monitoring systems that has led to an approach to the design of sensor peripherals and wearable computer components called "Extremity Computing." This approach is used to redefine biosensor monitoring from periodic to continuous (ultimately saving data over a lifetime). Another result is an approach to adding implicit biofeedback to computer games. This has led to a new genre of games called "Bio-Analytical Games" that straddles the boundary between sports and computer games. A series of studies of how to present health information to children and adults have demonstrated the ability of consumers to use bioinformatics without involving professionals.by Vadim Gerasimov.Ph.D

PET ROBOT

The idea of the PET ROBOT is highly appropriate due to the r-apid changing technology in the modem world and the h\llllans changing ways of life. This teclmology could not only be the replacement for house pets but with detailed design and innovation it could be an assistant to humans at homes. Pet robot uses a microcontroller to control its functions. The micr{)controller will carry out instructions from the designed coding that is implemented to the microcontroller. Coding is designed and compiled using PIC Programming software. Different types of sensors are placed to the robot to give it intelligence. The pet robot will be not only be able to move forward, backward and tum but with the ability to 'see' by implementing sensol'S, the r{)bot is also able to avoid object obstacles along the way. Besides that, the robot can react to certain external input such as performing certain functions when it detects light and can react to sound. The project work requires both mechanical field for movement and electrical field for contr{)lling the r{)bot

Compact information technology enabled systems for intelligent process monitoring

The use of computers in industrial process applications is ever-increasing. Initially used to provide help to the machine operator, their application has evolved through automatic process control to monitoring of process health and performance. The latter, together with the quality control of the end product directly affect plant economics and ultimately the financial viability of the company. The research reported in this thesis is a contribution towards providing a cost-effective method of calculating a measure of the current health of a process and predicting any maintenance issues that may arise in the near future. Embedded systems are utilised and the monitoring system is designed to work automatically with a minimal input from the operator. This eliminates the need for peripherals such as keyboards, mice, and monitors thus reducing the overall system price and footprint. User interfaces are provided via the Internet and mobile phones giving remote access to multiple users. Single chip microcontrollers are at the heart of the embedded system rather than microprocessors, thereby reducing the relative system cost and size at the expense of localised processing power. The microcontrollers are distributed in a hierarchical network to attain the required processing power whilst minimising data storage and communications and to improve signal-to-noise ratios. The Controller Area Network (CAN) bus was selected, and used for the inter-microcontroller communications, for its robust performance in noisy environments. In the developed system architecture, each microcontroller node acquires one of the required process sensor signals and applies initial signal processing. A novel sweeping filter technique is developed to perform frequency analysis using the microcontrollers. The processed data from all nodes are then combined using situation-based criteria to reach conclusions often not evident from single sensor data. The Internet-based system is provided with the capability to upload any monitoring software or updates. Plug & play capability of the monitoring nodes is also provided so that the system can be seamlessly adapted to new or changed applications. The design and development of the system are detailed along with its deployment on various applications. Fault detection, isolation, and prediction were achieved on batch and continuous processes. A machine tool application proved the frequency analysis and network traffic reduction capabilities. On-line monitoring of an industrial valve was also performed

The development and implementation of an ionic-polymer-metal-composite propelled vessel guided by a goal-seeking algorithm

This thesis describes the use of an ultrasonic goal-seeking algorithm while using ionic polymer metal composite (IPMC), an electroactive polymer, as the actuator to drive a vessel towards a goal. The signal transmitting and receiving circuits as well as the goal seeking algorithm are described in detail. Two test vessels were created; one was a larger vessel that contained all necessary components for autonomy. The second was a smaller vessel that contained only the sensors and IPMC strips, and all power and signals were transmitted via an umbilical cord. To increase the propulsive efforts of the second, smaller vessel, fins were added to the IPMC strips, increasing the surface area over 700%, determined to yield a 22-fold force increase. After extensive testing, it was found that the three IPMC strips, used as oscillating fins, could not generate enough propulsion to move either vessel, with or without fins. With the addition of fins, the oscillating frequency was reduced from 0.86-Hz to 0.25-Hz. However, the goal-seeking algorithm was successful in guiding the vessel towards the target, an ultrasonic transmitter. When moved manually according to the instructions given by the algorithm, the vessel successfully reached the goal. Using assumptions based on prior experiments regarding the speed of an IPMC propelled vessel, the trial in which the goal was to the left of the axis required 18.2% more time to arrive at the goal than the trial in which the goal was to the right. This significant difference is due to the goal-seeking algorithmâÂÂs means to acquire the strongest signal. After the research had concluded and the propulsors failed to yield desired results, many factors were considered to rationalize the observations. The operating frequency was reduced, and it was found that, by the impulse-momentum theorem, that the propulsive force was reduced proportionally. The literature surveyed addressed undulatory motion, which produces constant propulsive force, not oscillatory, which yields intermittent propulsive force. These reasons among others were produced to rationalize the results and prove the cause of negative results was inherent to the actuators themselves. All rational options have been considered to yield positive results