摘要：【中文】本发明涉及无人船技术领域，公开了一种无人船避障控制系统及无人船，所述避障控制系统包括：角度获取模块，用于获取图像传感器的轴向与水平面之间的夹角；判断模块，用于判断所述图像传感器的轴向与水平面之间的夹角与预设角的大小；第一控制模块，用于控制所述图像传感器在俯仰方向上转动，以使所述图像传感器的轴向与水平面之间的夹角等于预设角；信息获取模块，用于获取所述图像传感器的探测信息；航行控制模块，用于根据所述探测信息控制所述无人船的航行。根据本发明的无人船避障控制系统，避免障碍物超出了视觉避障装置的探测视野，发生无人船的障碍检测失效，提高了无人船的航行安全性。 【EN】The invention relates to the technical field of unmanned ships, and discloses an unmanned ship obstacle avoidance control system and an unmanned ship, wherein the obstacle avoidance control system comprises: the angle acquisition module is used for acquiring an included angle between the axial direction of the image sensor and a horizontal plane; the judging module is used for judging the size of an included angle between the axial direction of the image sensor and the horizontal plane and a preset angle; the first control module is used for controlling the image sensor to rotate in the pitching direction so that the included angle between the axial direction of the image sensor and the horizontal plane is equal to a preset angle; the information acquisition module is used for acquiring detection information of the image sensor; and the navigation control module is used for controlling the navigation of the unmanned ship according to the detection information. According to the unmanned ship obstacle avoidance control system, the obstacle is prevented from exceeding the detection visual field of the visual obstacle avoidance device, the obstacle detection failure of the unmanned ship is avoided, and the navigation safety of the unmanned ship is improved.

摘要：【中文】本发明公开了一种聚丙烯组合，包含以下重量份的组分：共聚聚丙烯树脂40～55份、低密度聚乙烯树脂0～10份、乙烯辛烯共聚物5～20份和滑石粉25～35份；所述共聚聚丙烯树脂的分子量分布≤4.5。本发明所述聚丙烯组合物采用窄分子量分布的共聚聚丙烯树脂，能有效降低共聚聚丙烯中低分子量聚丙烯部分含量，可使聚丙烯聚合物结晶趋向减弱，可降低聚丙烯材料的线性膨胀系数，并且原料均可以采用主喂料口投入，可应用于汽车聚丙烯尾门和聚丙烯翼子板外板，助力汽车轻量化事业。 【EN】The invention discloses a polypropylene composition, which comprises the following components in parts by weight: 40-55 parts of copolymerized polypropylene resin, 0-10 parts of low-density polyethylene resin, 5-20 parts of ethylene-octene copolymer and 25-35 parts of talcum powder; the molecular weight distribution of the copolymerized polypropylene resin is less than or equal to 4.5. The polypropylene composition disclosed by the invention adopts the copolymerized polypropylene resin with narrow molecular weight distribution, the content of the low-molecular-weight polypropylene in the copolymerized polypropylene can be effectively reduced, the crystallization tendency of the polypropylene polymer can be weakened, the linear expansion coefficient of a polypropylene material can be reduced, and the raw materials can be fed through the main feeding port, so that the polypropylene composition can be applied to the polypropylene tail door and the polypropylene fender outer plate of an automobile and can assist the light-weight industry of the automobile.

摘要：【中文】本发明公开了一种聚乙烯组合物，包含以下重量份的组分：聚乙烯树脂100份、填料0～34份和发泡剂0.05～2.5份；所述聚乙烯树脂为低密度聚乙烯树脂，在230℃，2.16kg负荷下，所述聚乙烯树脂的熔体质量流动速率为10～30g/10min。本发明所述聚乙烯组合物通过对不同流动性的聚乙烯材料进行优选，获得聚乙烯组合物为一种微发泡材料，可以形成外部具有密实皮层的“三明治”皮芯结构，具有泡孔细密，其能够实现25％左右的减重，具有良好的隔音性，同时具有良好的成型性，在汽车风管、轮罩隔音材料、前围隔音材料等应用中有较好的前景。本发明还提供了一种聚乙烯组合物的制备方法。 【EN】The invention discloses a polyethylene composition, which comprises the following components in parts by weight: 100 parts of polyethylene resin, 0-34 parts of filler and 0.05-2.5 parts of foaming agent; the polyethylene resin is low-density polyethylene resin, and the melt mass flow rate of the polyethylene resin is 10-30 g/10min at 230 ℃ under the load of 2.16 kg. The polyethylene composition is a micro-foaming material obtained by optimizing polyethylene materials with different flowability, can form a sandwich skin-core structure with a compact skin layer outside, has fine and dense pores, can reduce weight by about 25%, has good sound insulation property and good formability, and has good prospects in applications such as automobile air pipes, wheel cover sound insulation materials and front wall sound insulation materials. The invention also provides a preparation method of the polyethylene composition.

摘要：【中文】本发明提供了一种低介电聚丙烯复合材料，通过加入一定量的氮吸附比表面积≥300m²/g的炭黑，能够降低炭黑的加入量，从而改善炭黑加入量过大导致介电常数和介电损耗的上升。能够用于对介电有需求的汽车内外饰件。 【EN】The invention provides a low dielectric polypropylene composite material, which is prepared by adding a certain amount of nitrogen with the specific adsorption surface area of more than or equal to 300m²The carbon black per gram can reduce the addition amount of the carbon black, thereby improving the increase of the dielectric constant and the dielectric loss caused by the excessive addition amount of the carbon black. Can be used for the interior and exterior trimming parts of the automobile with the requirement on dielectric.

摘要：【中文】本发明提出了一种考虑夜间弃风参与电采暖经济性分析方法，其步骤为：首先，构建电采暖模式，其中，电采暖是指谷电入京采暖，谷电入京采暖包括谷电受电端和谷电供电端；其次，计算谷电受电端的电采暖的最高阈值价格，其中，谷电受电端采用分散式电采暖技术或集中式电采暖技术；然后计算谷电供电端的电采暖的最低阈值价格；最后，对比最高阈值价格和最低阈值价格，对电采暖的经济可行性进行分析。本发明计算谷电受电端的最高阈值价格和谷电供电端的最低阈值价格，通过最高阈值价格和最低阈值价格的对比，分析电采暖的经济可行性，能够充分调度市场积极性，以适应大力推行谷电入京，以电代煤措施。 【EN】The invention provides an economical analysis method for electric heating by considering night wind curtailment, which comprises the following steps: firstly, constructing an electric heating mode, wherein the electric heating mode is valley electricity Beijing heating, and the valley electricity Beijing heating mode comprises a valley electricity power receiving end and a valley electricity power supply end; secondly, calculating the highest threshold price of electric heating of the valley power receiving end, wherein the valley power receiving end adopts a distributed electric heating technology or a centralized electric heating technology; then calculating the lowest threshold price of electric heating of the valley power supply end; and finally, comparing the highest threshold value price with the lowest threshold value price, and analyzing the economic feasibility of the electric heating. The method calculates the highest threshold price of the valley electricity receiving end and the lowest threshold price of the valley electricity power supply end, analyzes the economic feasibility of electric heating by comparing the highest threshold price with the lowest threshold price, and can fully schedule the market enthusiasm to adapt to the vigorous promotion of the valley electricity entering the Beijing and the measure of replacing coal with electricity.

摘要：【中文】本发明公开了一种换流站监控信息缺失下的电压波动在线判断方法、系统及介质，本发明方法的实施步骤包括：采集变流站设备实时数据并计算多项电压波动评估指标，包括电压波动发射水平指标、多负荷引起电压波动水平指标、闪变功率法电压波动指标和U‑I斜率法电压波动指标；将所有指标进行归一化，引入目标函数并设定参数值；通过粒子群算法计算目标函数最优解并分析判断负荷分支是否为电压波动源，若输出结果大于0则该负荷分支存在电压波动并确定其电压波动水平。本发明能够有效解决换流站中在线监测信息缺失情况下电压波动识别问题，不仅更精确地判断电压波动源，还能确定电压波动发射水平，从而能够为换流站电能质量治理工作提供技术保障。 【EN】The invention discloses a method, a system and a medium for online judging voltage fluctuation under monitoring information loss of a converter station, wherein the method comprises the following implementation steps: collecting real-time data of the converter station equipment and calculating a plurality of voltage fluctuation evaluation indexes, including a voltage fluctuation emission level index, a voltage fluctuation level index caused by multiple loads, a flicker power method voltage fluctuation index and a U-I slope method voltage fluctuation index; normalizing all indexes, introducing a target function and setting parameter values; and calculating an optimal solution of the target function through a particle swarm algorithm, analyzing and judging whether the load branch is a voltage fluctuation source, and if the output result is greater than 0, determining the voltage fluctuation level of the load branch. The method can effectively solve the problem of voltage fluctuation identification under the condition of online monitoring information loss in the converter station, not only can more accurately judge the voltage fluctuation source, but also can determine the voltage fluctuation emission level, thereby providing technical support for the electric energy quality control work of the converter station.