DESIGN AND IMPLEMENTATION OF PERFORMANCE MONITORING OF DC MOTOR BASED ON MICROCONTROLLER AND TEMPERATURE CONTROL OF HEAT SINK
Published In: INTERNATIONAL CONFERENCE ON ADVANCED COMPUTING, COMMUNICATION AND NETWORKS
Author(s): JAYTRILOK CHOUDHARY , SANJAY CHOUDHARY , VASUDEV DEHALWAR
Abstract: The electric drive systems used in industrial applications are increasingly required to meet the higher performance and reliability requirements. The DC motor is an attractive piece of equipment in many industrial applications requiring variable speed, good speed regulation; frequent starting, braking and reversing. Microcontrollers provide a suitable means of meeting these needs. In this Project work, implementation of microcontroller, PIC16F877A for of speed control of DC motor fed by a DC chopper is carried out. The chopper is driven by a high frequency PWM signals. Controlling the PWM duty cycle is equivalent to controlling, the motor terminal voltage which in turn adjusts directly the motor speed. Microcontroller based closed loop control system for a DC motor which gives the output as speed at different conditions, system provides over current protection of DC Motor and temperature controlled system.
- Publication Date: 03-Jun-2011
- DOI: 10.15224/978-981-07-1847-3-1027
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- Downloads: 0
A RE-RANKING STRATEGY FOR WEB SEARCH PERSONALIZATION
Published In: INTERNATIONAL CONFERENCE ON ADVANCED COMPUTING, COMMUNICATION AND NETWORKS
Author(s): JAYTRILOK CHOUDHARY , SANJAY CHOUDHARY , VASUDEV DEHALWAR
Abstract: Work of relevant information retrieval from search engines is a tedious task in current scenario as there is huge amount of information present on the web. Web Search personalization is the process to filter search results to a particular user based on user’s interest and preferences. The judgment to make the search results relevant depends on user and the context of search. So, to judge the user and search context we build a user profile that will be very helpful in obtaining most relevant results .Also we maintain Query log that will help us to solve the ambiguity problem with the queries. Ambiguity refers to the missing weights of certain words in the user profile. In this paper we present an effective filtering strategy that compensates for the ambiguity in a user’s profile, by applying reranking algorithm. After evaluation the results are effective and show an improvement in precision over approaches that use only a user’s profile.
- Publication Date: 03-Jun-2011
- DOI: 10.15224/978-981-07-1847-3-1027
- Views: 0
- Downloads: 0