Microcontroller Based Neural Network Controlled Low Cost Autonomous Vehicle

In this paper, design of a low cost autonomous vehicle based on neural network for navigation in unknown environments is presented. The vehicle is equipped with four ultrasonic sensors for hurdle distance measurement, a wheel encoder for measuring distance traveled, a compass for heading information, a GPS receiver for goal position information, a GSM modem for changing destination place on run time and a nonvolatile RAM for storing waypoint data; all interfaced to a low cost PIC  microcontroller. The microcontroller processes the information acquired from the sensors and generates robot motion commands accordingly through neural network. The neural network running inside the microcontroller is a multilayer

feed-forward network with back-propagation training algorithm. The network is trained offline with tangent-sigmoid as activation function for neurons and is implemented in real time with piecewise linear approximation of tangent-sigmoid function. Results have shown that upto twenty neurons can be implemented in hidden layer with this technique. The vehicle is tested with varying destination places in outdoor environments containing stationary as well as moving obstacles and is found to reach the set targets successfully.

Design and Built of on - Load Fully Electronic Tap-Changer with Triac Switch: Simulation and Practical Results

This paper, introduces a new solid-state on – load Tap-changer that has four steps. One of the main requirements of any electrical system is that it should provide a voltage to the consumer which remains within closely defined limits regardless of the loading on the system. Industrial equipment such as speed drives, electronic and control systems are sensitive to voltage variation and affected by bad power quality and poor power factor. Voltage dips can cause shutdown of plants or result in damage of devices. By using of electronic tap-changer, most of the voltage dips can be avoided and lead to good power quality and thus, result in good operation of equipment. The prototype was built with triac switches as the switching devices

and A VR microcontroller as the control circuit. In this work a fully electronic tap changer with four taps for 2 KV A, 220/1200V single phase transformer is designed and built. Also some of problems that caused to limitation of electronic tap changer application at high power and voltage system and technical solution

ways for theses problems are described. The discrete cycle modulation (DCM) has been used in this tap changer.

Adding New Functions to the Remote Airfield Lighting System

There are many remote airfields that are not connected to the power grid. Providing adequate lighting to these airfields is necessary and challenging. The Federal Aviation Administration (FAA) has sponsored a research project, RemoteAirfield Lighting Systems (RALS), through the Center for General Aviation  Research (CGAR). The findings from the RALS research specified a light that had low power needs and a color/intensity to meet the requirements for airfield identification and landing. To make these lights more appropriate to wide spread applications, the research team is conducting an exemplary operational test. In this paper, we discuss the new functions added to these lights for the operational test, including both automatically/remotely switching on/off the lights and smart charging of the batteries using solar panels under the control of a microcontroller. In addition, we consider future new functions such as low cost pilot controlled lighting as well as wireless networking for health monitoring and controlling of the lighting system. These new functions can greatly improve the convenience of the usage of RALS while vkeeping the same low cost.

Green Bee

This system continuously monitors different parameter from the sensors and automatically controls the different parameter. This system consists of “Humidity Sensor”, “Temperature Sensor”, “Moisture Sensor”,

“Light or LUX sensor” that will maintain the environmental condition. If there is any sudden drift in the parameter of the things cannot be controlled by “Green Bee” it immediately alters with a buzzer alarm with

SMS Alert.

GSM Smart Home

GSM BASED SMART HOME is developed in a motive to help for disabled and aged people. At first, this

application is installed in the a Android mobile phone. When the user wants to control a home appliance, he

needs to open the application, and select the particular option, when the option is selected, the corresponding device gets operated via GSM.

Bluetooth Energy meter with Android Interface

The main aim of this project is to implement an electronic energy meter with instant billing. In this project we

have shown the concept of postpaid energy meter which will automatically sense the energy used in the home

and update the reading in EEPROM and LCD display. For measuring energy consumed by the user we are

going to use one Handheld Device with Bluetooth to measure reading, at the same time the reading will be

display in LCD. In this project we are using bulbs as a load. The units consumed by the user updates in the

EEPROM continuously and reading, bill will print on thermal printer.

Police friendly intelligent wireless printer with alcohol detector using Bluetooth

In this project “Police friendly intelligent wireless bill printer with alcohol detector using Bluetooth technology” as its name indicates it is used to print bill remotely using Bluetooth technology. Policeman enter data to the application in the android setup mobile phone, the data transfer and reception is through Bluetooth technology and alcohol detector attached with printer can measure the content of alcohol, it will

provide an indication regarding percentage of alcohol. By using this project we can avoid the problems

arising from traffic billing process. This project consists Bluetooth module, microcontroller, alcohol

detector, thermal printer, power supply.