| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to analyze and evaluate the danger of submer gence in a drainage machine field and an intermediate or small river area in advance even if it rains much by allocating different arithmetic programs to at least two arithmetic units and placing them in operation. SOLUTION: An input device A12 periodically input waterway information on the inflow, water level, etc., at a river or waterway entrance, the operation state of a pump, etc., through a network 19. An analyzing device A1 in a multiple processor A1 decides whether each waterway is an open or closed waterway from the waterway water level, and divides the river network into blocks according to the waterway state decision result and waterway constitution element data. Then individual arithmetic units A14 are assigned to the respective blocks, different arithmetic programs are allocated, and the flow states of waterways are analyzed by using a continuous expression and a motion equation. The analysis result and waterway information of the respective blocks and the operation state of the pump are edited by an output device A13 and outputted on a CRT 20, a printer 17, or a plotter 18.</p> |
