Hassrizal Hassan Basri
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/32909
2024-03-29T13:32:33ZA Firefly Algorithm approach for routing in VLSI
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/35233
A Firefly Algorithm approach for routing in VLSI
Mohd Nasir, Ayob; Ahmad Fariz, Hassan; Abdul Halim, Ismail; Hassrizal, Hassan Basri; Muhamad Safwan, Muhamad Azmi; Amar Faiz, Zainal Abidin
Many studies had been conducted in improving the performance of large scale integration circuits that heavily depends on the interconnected routing in the circuits. Strategic choice of wire placement and buffer placement for very large scale integration (VLSI) routing can improve time delay of VLSI circuit. This paper explores the use of Firefly Algorithm in VLSI routing. The location of doglegs is employed to model the firefly that represents the routing solution. The proposed approach is then compared with previous literature for benchmarking. The result indicates that it has a good potential in VLSI routing and can be further extended in future.
Proceeding of The Symposium on Computer Applications and Industrial Electronics, (ISCAIE 2012) at Kota Kinabalu, Malaysia on 3 December 2012 through 4 December 2012.
Link to publisher's homepage at http://ezproxy.unimap.edu.my:2080/Xplore/dynhome.jsp?tag=1
2012-01-01T00:00:00ZDevelopment of a webcam based lux meter
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/34188
Development of a webcam based lux meter
Abdul Halim, Ismail; Muhamad Safwan, Muhamad Azmi; M. A, Hashim; Mohd Nasir, Ayob; Mohd Sani, Mohamad Hashim, Dr.; Hassrizal, Hassan Basri
The amount of light is an important issue in several scenarios ranging from scenic design, light pollution study, robots navigation, occupational health and safety, illumination engineering, agriculture, medical appliances and many more. It is typically determined by using an illumination meter. The meter, also known as lux meter is used to measure the density of light in an area which measured in lx unit. It is used in photometry as a measure of the intensity, as perceived by the human eye of light that hits or passes through a surface. As in normal meter, the lux value was obviously a displayed value, and hardly used for embedded application as well as for lighting monitoring considering its expensive price. This limits the lighting monitoring in certain critical field. Therefore, in this paper, we present our initial works on the development of a webcam based lux meter that is applicable and suitable for lighting monitoring as well as the ability to be used in embedded application. A series of controlled images are taken, and image processing is applied to the images. The results of image processing are statistically analyzed and a linear relationship between lux value and average grayscale has been obtained with satisfactory R2. The linear function is tested and the results are justified where the algorithm for low cost webcam-based digital lux meter has been successfully developed.
Proceeding of The Symposium on Computers and Informatics 2013 (ISCI 2013) at Langkawi, Malaysia on 7 April 2013 through 9 April 2013
2013-04-01T00:00:00ZDynamic obstacle avoidance approach for car-like robots in dynamic environments
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/26632
Dynamic obstacle avoidance approach for car-like robots in dynamic environments
Mohd. Sani, Mohamad Hashim; Tien-Fu, Lu; Hassrizal, Hassan Basri
In this paper, a new dynamic obstacle avoidance approach for nonholonomic mobile robots in dynamic environments is presented. In dynamic environments, the mobile robot is expected to encounter and safely avoid the obstacles along its way. This inevitably will delay the mobile robot in keeping to its original planned timeframe. To address this scenario, the proposed approach will ensure the mobile robot is able to gain the time lost during obstacle avoidance and reach the final point at the specified time. This approach is based on the dynamic trajectory planning scheme which utilized the replanning approach in order to avoid the obstacle. The performance of the proposed approach is tested through simulations in a simplified city-like dynamic environment.
Link to publisher's homepage at http://ieeexplore.ieee.org/
2012-12-03T00:00:00Z