摘要：【中文】本发明涉及一种基于Petri网的无刷直流电机DSP逻辑控制程序的设计方法，通过对无刷直流电机的霍尔传感器和转向控制变量建模，得到功率管的Petri网，Petri网模型直观易懂，且易于分析。本发明通过Petri网可达图算法，计算无刷直流电机动态系统的状态集合，并根据梯形换向逻辑逐个验证，是否符合规范，若不符合，重新设计系统的Petri网模型，避免了程序中的逻辑错误。本发明给出无刷直流电机逻辑控制数学表达式，为DSP逻辑控制程序设计做铺垫，数学表达式描述逻辑控制更加严谨和清晰。 【EN】The invention relates to a design method of a DSP logic control program of a brushless direct current motor based on a Petri network. According to the invention, the state set of the brushless direct current motor dynamic system is calculated through a Petri network reachability graph algorithm, and is verified one by one according to the trapezoidal commutation logic, whether the state set meets the specification or not is verified, if the state set does not meet the specification, the Petri network model of the system is redesigned, and logic errors in a program are avoided. The invention provides a logic control mathematical expression of the brushless direct current motor, lays a cushion for designing a DSP logic control program, and describes more rigorous and clear logic control by the mathematical expression.

摘要：【中文】本发明公开了一种资料需求少的河水‑地下水转化关系量化方法，包括以下步骤：根据地下水监测井监测资料计算流域地下水位；利用河道一维水动力学模型计算河道水位；根据地下水位等值线和含水层厚度将河道分段，并确定各个河段代表断面；根据达西定律计算各河段代表断面地表水与地下水单宽转化量，累加后得到全河段转化量和转化方向。本发明的河水‑地下水转化关系量化方法，打破了传统计算中地表水位与地下水位需现场实测，且不能连续计算整条河段河水与地下水转化量的弊端，实现了全河段多时期河水与地下水转化量的计算，为水资源调查评价中地表水、地下水重复量计算和流域地表地下水转化研究提供了新的方法。 【EN】The invention discloses a river water-underground water conversion relation quantification method with less data demand, which comprises the following steps: calculating the groundwater level of the drainage basin according to the monitoring data of the groundwater monitoring well; calculating the water level of the river channel by using a one-dimensional hydrodynamic model of the river channel; segmenting the river channel according to the contour line of the underground water level and the thickness of the aquifer, and determining the representative section of each river section; and calculating the single-width conversion quantity of surface water and underground water of the representative section of each river section according to the Darcy's law, and accumulating to obtain the conversion quantity and the conversion direction of the whole river section. The method for quantifying the river water-underground water conversion relation breaks through the defects that the surface water level and the underground water level need to be actually measured on site in the traditional calculation and the conversion quantity of the river water and the underground water of the whole river section cannot be continuously calculated, realizes the calculation of the conversion quantity of the river water and the underground water of the whole river section in multiple periods, and provides a new method for the calculation of the repeated quantity of the surface water and the underground water and the conversion research of the surface underground water of the drainage basin in the water resource investigation and evaluation.