Mobile animal tracking systems using light sensor for efficient power and cost saving motion detection. - Chakchai So-In; Comdet Phaudphut; Smarn Tesana; Nutnicha Weeramongkonlert; Kasidit Wijitsopon; Urachart Kokaew; Boonsup Waikham; Saiyan Saiyod (CSNDSP, 2012)