Browsing by Author "Muhida, Riza"
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Item Control strategy for automatic gantry crane systems: a practical and intelligent approach(SAGE Publications, 2007-12-01) Wahyudi, Wahyudi; Jalani, Jamaludin; Muhida, Riza; Salami, Momoh-Jimoh E.The use of gantry crane systems for transporting payload is very common in building constructions. However, moving the payload using the crane is not an easy task especially when strict specifications on the swing angle and on the transfer time need to be satisfied. Various attempts in controlling gantry cranes system based on open- loop and closed-loop control systems were proposed. However, most of the proposed controllers were designed based on the model and parameter of the crane system. In general, modeling and parameter identifications are troublesome and time consuming task. To overcome this problem, in this paper, a practical and intelligent control method for automatic gantry crane is introduced and evaluated experimentally. The results show that the proposed method is not only effective for controlling the crane but also robust to parameter variation.Item Solar-based fuzzy intelligent water sprinkle system(Journal of Mechatronics, Electrical Power, and Vehicular Technology, 2013-03-12) Muhida, Riza; Salami, Momoh-Jimoh E.; Astuti, Winda; Amalina, Nurul; Kasim, Ahmad; Rahayu, NaniA solar-based intelligent water sprinkler system project that has been developed to ensure the effectiveness in watering the plant is improved by making the system automated. The control system consists of an electrical capacitance soil moisture sensor installed into the ground which is interfaced to a controller unit of Motorola 68HC11 Handy board microcontroller. The microcontroller was programmed based on the decision rules made using fuzzy logic approach on when to water the lawn. The whole system is powered up by the solar energy which is then interfaced to a particular type of irrigation timer for plant fertilizing schedule and rain detector through a simple design of rain dual-collector tipping bucket. The controller unit automatically disrupted voltage signals sent to the control valves whenever irrigation was not needed. Using this system we combined the logic implementation in the area of irrigation and weather sensing equipment, and more efficient water delivery can be made possible.