To calculate the most suitable solution in a short time automatically by repeating a decided variable set process and performance function value calculation process while changing the value of a decided variable until the performance function value calculated in the performance function value calculation process reaches a prescribed threshold value.
A cargo handling plan preparing device Al is provided with a data input section 1 for inputting various data such as a restriction condition on the cargo handing, a decided variable set section 2 for setting the value of the decided variable for constituting a cargo handing plan and a performance function value calculation section 3 for calculating the value of a prescribed performance function by using the value of the decided variable. Further, a calculated performance function value is compared with a prescribed threshold value and a judging section 4 for repeating the process by the decided variable set section 2 and performance function value calculation section 3 until the performance function value reaches a prescribed threshold value is provided. The cargo handling plan preparing device Al having above constitution can be realized on the computer such as a personal computer and work station.
MATSUDA KOICHI
ONISHI HIRONORI
SATO ATSUSHI
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