基于农机智能管理平台的田间燃油配给策略

    Fuel rationing strategy in farmland based on intelligent management platform for agricultural machinery

    • 摘要: 在农业规模化生产中,为保证作业效率,农机燃油配给往往需要在田间完成。然而,现有的田间燃油配给方式存在不安全、不及时、缺乏科学系统的配给决策,导致燃油配给效率低、配送成本高等问题。针对上述问题,该研究结合农机燃油需求特点,提出基于农机智能管理平台的农机田间燃油配给策略。首先,以农机智能管理平台的实时数据为基础,基于可信性理论建立农机田间燃油配给的两阶段数学模型:第一阶段预优化,根据平台数据建立具有模糊需求和模糊时间窗的多目标车辆路径规划模型,第二阶段根据实际生产中发生的动态事件更新相关信息,重新规划未配送订单的配送路径;其次,以总配送成本最低及总满意度最高为目标,结合改进遗传算法求解农机田间燃油配给模型。最后,应用嫩江农场的数据进行实证分析,并与农场当前的配送成本等指标进行对比,验证可行性及实用性。结果表明:基于农机智能管理平台实时数据构建的农机田间燃油配给策略可以在降低配送成本的同时,保证较高的订单平均满意度,即时效性,与当前生产方案相比,配送路径减少了14条,虽然满意度较实际稍低,为72.85%,但总配送成本较当前方案降低了93.38%。研究结果可为农机田间燃油配给的智能化管理提供科学依据。

       

      Abstract: Agricultural machinery has been widely used in large-scale operation and wide distribution in recent years. However, the returning duration of refueling and queuing has seriously limited the operational efficiency of agricultural machinery, particularly in tens of acres or even hundreds of acres of land. Apparently, the return refueling cannot fully meet the requirements for the continuous operation of agricultural machinery in the context of large-scale production. It is very necessary to guarantee the fuel rationing and supply of agricultural machinery with less time and high yield in the field. Fuel rationing in the field for agricultural machinery refers to the fuel supply point distributing the required amount of fuel to the farmland, where the agricultural machinery is located within the required time and completing fuel refueling. Fuel rationing in actual agricultural production includes fuel delivery into the field via filling buckets, and mobile refueling service by mobile refueling trucks. The rationing relies mainly on unsafe, untimely, and manual decision-making with a low level of digitization. It is still lacking in the systematic decision-making on rationing, in order to improve the efficiency of fuel rationing and distribution cost-saving. In this study, a fuel rationing in-field strategy was proposed using an intelligent management platform. The fuel demand of agricultural machinery was combined to utilize the agricultural Internet of Things (IoT), taking the synergistic advancement of "demand analysis-order allocation-route planning" as the core. Firstly, a two-stage mathematical model of fuel rationing in agricultural machinery was established using real-time data and the theory of trustworthiness in the intelligent management platform. In the first stage of pre-optimization, a multi-objective vehicle route planning model was established with the fuzzy demand and fuzzy time window using the platform data. In the second stage, the distribution route planning was re-routed to update the relevant information for undelivered orders using the dynamic events in agricultural production. Secondly, the solution was designed after the two stages. Taking the lowest total distribution cost and the highest total satisfaction as the objectives, a multi-objective cooperative co-evolutionary genetic method was applied to realize the distribution route planning using an order analysis. The dynamic optimization was realized to obtain the dynamically optimal scheme of fuel rationing. Finally, an empirical study was conducted with the Nenjiang Farm. An intelligent management platform was selected to implement the scheduling of agricultural machinery. According to the Beidou navigation satellite system terminal carried by the agricultural machinery, the operation data was acquired in the field, such as the location, the amount of operation, and the status information. The production data of the farm was also adopted to conduct simulation experiments. A comparison was then made between the distribution cost and current indicators to verify the feasibility and practicality. The function of fuel rationing was realized in field planning. The results show that high satisfaction and distribution cost-saving were achieved in the fuel rationing in the field for the agricultural machinery, according to the real-time data from the intelligent platform. The final scheme of dynamic optimization was reduced to 14 distribution routes, compared with the current one. The total distribution cost was reduced by about 15 times. The satisfaction rate of 72.85% was slightly lower than the actual one. The relevant functions were promoted in the intelligent platform for agricultural machinery. The finding can provide a scientific basis for the intelligent management of fuel rationing in the field of agricultural machinery.

       

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