Development of the farm work improvement system for community farming and an agricultural production corporation in the new policy

开发了使用具有GPS功能的蜂窝电话和可安装在拖拉机上的自动记录装置的数据记录系统。建立了存储冲绳甘蔗种植的农事数据的数据库。此外，为了设计一个有效的农业工作计划，农场工作流程建模使用的数学模型。利用该模型对某农业生产公司的大规模甘蔗种植作业进行了模拟，得到了最优农业作业计划的数值解。

The data recording system using a cellular phone with a GPS function and an automatic recording device which can be mounted in a tractor was developed. The data base which stores the farm work data of sugarcane cultivation of Okinawa was build. Moreover, in order to design up an efficient agricultural work plan, farm work flow was modeled using the mathematical model. The large scale sugarcane farm work by an agricultural production corporation was simulated using the model and the numerical solution of the optimal agricultural work plan is obtained.