IHCP For Searching Heat Source Based On Ant Colony Algorithm

IHCP has a wide application range, such as localized thermal fault in industrialequipment, endothermic and exothermic phenomenon in chemical reaction, hightemperature furnace’s wall breakage and human localized physiological lesions and soon, These applications can not be measured directly. So could abstracte theseapplications as IHCP with internal heat source. IHCP is difficult to solve because ofill-posed, nonlinear and large calculation amount. Therefore, researching IHCP issignificative.This paper uses ant colony algorithm to search heat source location in IHCP.Based on ant colony system, this paper proposed sorting mechanism and initialant uniform distribution mechanism; established a ant colony system with fasterconvergence speed and more accurate solution. Composing IHCP program with Clanguage and calculate a example to verify the system’s reliability and accuracy. Thispaper researches the affection of ant colony algorithm parameters to provide a reliableselection reference. And research the influence of measuring points’ position, number,and measurement error.The results show that: sorting mechanism can improve difference between theelements, make the search more quickly to concentrate to the optimal solution. Initialant uniform distribution mechanism could make the colony to reflect the field solutionmore accurately, thereby could guide the ant path searching more effectively. Usingthe improved ant colony system, because of the initial ant uniform distributionmechanism, ant colony system parameters mainly affect the convergence speed and themeasurement information (measuring points’ position, number, and measurement error)mainly affect the solution accuracy.