摘要：【中文】本发明提供了一种步进电机零点检测方法及装置，属于步进电机控制技术领域。它解决了现有步进电机在到达零点时立即停止从而容易造成机器产生振动的问题。本检测方法包括如下步骤：S1、当第一感应器与第二感应器产生感应时，发出零位信号给控制器，同时，控制器对步进电机的脉冲数从0开始计数，此时步进电机的运行速度为V；S2、步进电机从运行速度V开始按照速度曲线S降速继续运行直至运行速度变为零，此时，控制器对步进电机脉冲数的累计计数为M；S3、驱动机构移动时，步进电机以步骤S2的运行方向的反方向运行M个脉冲数后往移动的方向运行相应的脉冲数使机构到达指定位置。本检测方法及装置具有达到零点不会产生较大振动的优点。 【EN】The invention provides a zero point detection method and device for a stepping motor, and belongs to the technical field of stepping motor control. The problem that the existing stepping motor is stopped immediately when reaching a zero point, so that the machine is easy to vibrate is solved. The detection method comprises the following steps: s1, when the first sensor and the second sensor sense, a zero position signal is sent to the controller, and meanwhile, the controller counts the pulse number of the stepping motor from 0, and the running speed of the stepping motor is V; s2, the stepping motor continues to run at the speed reduction speed according to the speed curve S from the running speed V until the running speed becomes zero, and at the moment, the controller counts the accumulated number of pulses of the stepping motor to M; and S3, when the driving mechanism moves, the stepping motor runs M pulses in the reverse direction of the running direction of the step S2 and then runs corresponding pulses in the moving direction to enable the mechanism to reach the designated position. The detection method and the device have the advantage that the zero point is reached and no large vibration is generated.

摘要：【中文】本发明提供一种遗传算法包裹式特征选择电网入侵检测方法，包括：根据遗传算法对特征种群进行二进制编码，对二进制编码之后的特征种群进行初始化，使用拉斯维加斯包裹式特征选择算法判断初始化之后的特征种群是否达到预设的终止条件，使用AdaBoost算法将基学习器训练成为强学习器，使用交叉验证方法评价所述强学习器，获得最优的学习器，根据最优的学习器更新全局最优。本发明提供的入侵检测方法建立在训练数据集之上，训练数据集由电力系统不同场景的监控数据组成，有正常数据，也有异常数据，通过训练获得的模型用于对电力系统的状态进行监测，从而发现入侵行为，发出警报，将入侵带来的损失降低到最小。 【EN】The invention provides a genetic algorithm packaged feature selection power grid intrusion detection method, which comprises the following steps: binary coding is carried out on the feature population according to a genetic algorithm, the feature population after the binary coding is initialized, a Las Vegas wrapping type feature selection algorithm is used for judging whether the initialized feature population reaches a preset termination condition or not, an AdaBoost algorithm is used for training a base learner into a strong learner, a cross validation method is used for evaluating the strong learner, an optimal learner is obtained, and global optimization is updated according to the optimal learner. The intrusion detection method provided by the invention is established on a training data set, the training data set consists of monitoring data of different scenes of the power system, and the training data set has normal data and abnormal data, and a model obtained through training is used for monitoring the state of the power system, so that the intrusion behavior is found, an alarm is given out, and the loss caused by intrusion is reduced to the minimum.

摘要：【中文】本发明涉及一种支撑系统的无级可调横杆，包括内杆和外管；所述内杆和所述外管的一端均固定有用于与立杆连接的插扣，其另一端内外可伸缩的套装在一起；在所述内杆上可水平移动的设有将所述内杆和所述外管相对位置固定住的锁紧机构。本发明的有益效果是：提高抗拉性能，保证支撑系统稳定性能，提高施工效率。 【EN】The invention relates to a stepless adjustable cross bar of a support system, which comprises an inner bar and an outer tube; one ends of the inner rod and the outer tube are both fixed with buckles for connecting with the upright rods, and the other ends of the inner rod and the outer tube are sleeved together in a telescopic way; the inner rod can be horizontally moved and is provided with a locking mechanism which fixes the relative positions of the inner rod and the outer tube. The invention has the beneficial effects that: the tensile property is improved, the stability of the supporting system is ensured, and the construction efficiency is improved.

摘要：【中文】本发明提出了一种具有驱动机构的旋转装置及变形方法，属于旋转装置技术领域，特别是涉及一种具有驱动机构的旋转装置及变形方法。解决了现有旋转装置均为一次性加工定型，无法实现结构和形状的改变，使旋转装置的应用范围受到限制的问题。其中，具有驱动机构的旋转装置包括旋转本体、驱动机构和电源，对所述旋转本体进行切割，形成可运动机构，所述驱动机构与可运动机构相连，所述驱动机构驱动可运动机构移动，所述电源与驱动机构相连，为驱动机构供电。从而对旋转装置的结构和形状进行改变。 【EN】The invention provides a rotating device with a driving mechanism and a deformation method, belongs to the technical field of rotating devices, and particularly relates to a rotating device with a driving mechanism and a deformation method. The problem of current rotary device be disposable processing design, can't realize the change of structure and shape, make rotary device's range of application receive the restriction is solved. The rotating device with the driving mechanism comprises a rotating body, a driving mechanism and a power supply, the rotating body is cut to form a movable mechanism, the driving mechanism is connected with the movable mechanism, the driving mechanism drives the movable mechanism to move, and the power supply is connected with the driving mechanism and supplies power to the driving mechanism. Thereby changing the structure and shape of the rotating device.

摘要：【中文】本发明涉及装配式钢结构建筑技术领域，具体涉及一种装配式钢结构主体与二次结构的连接方法，包括：利用BIM模型搭建装配式钢结构主体模型和二次结构模型，并确定预制连接件在所述钢结构主体模型上的相应位置；根据建模结果加工所述装配式钢结构主体的构件和所述二次结构，并将所述预制连接件焊接在所述装配式钢结构主体的构件的相应位置；在施工现场将钢筋与所述预制连接件连接后，再将所述二次结构通过所述钢筋完成与所述装配式钢结构主体的连接。本发明提供了一种避免影响钢结构主体的力学性能，且施工效率高，成本低的装配式钢结构主体与二次结构的连接方法。 【EN】The invention relates to the technical field of assembly type steel structure buildings, in particular to a method for connecting an assembly type steel structure main body with a secondary structure, which comprises the following steps: building an assembly type steel structure main body model and a secondary structure model by using a BIM model, and determining the corresponding position of a prefabricated connecting piece on the steel structure main body model; processing the member of the assembly type steel structure main body and the secondary structure according to a modeling result, and welding the prefabricated connecting piece at the corresponding position of the member of the assembly type steel structure main body; and after connecting the reinforcing steel bars with the prefabricated connecting piece on a construction site, finishing the connection of the secondary structure and the assembled steel structure main body through the reinforcing steel bars. The invention provides a method for connecting an assembled steel structure main body and a secondary structure, which avoids influencing the mechanical property of the steel structure main body, and has high construction efficiency and low cost.

摘要：【中文】本发明公开了基于多重分形优化的电力舆情监测方法及系统，包括：获取待监测电力舆情数据；对待监测建立舆情数据进行预处理，获得舆情传播态势时间序列；对舆情传播态势时间序列进行分形特征提取，将分形特征输入到预训练的舆情态势分类模型中，得到舆情态势分类结果；根据舆情态势分类结果，选择对应类型的预训练的舆情态势预测模型；将舆情传播态势时间序列，输入到选择的预训练的舆情态势预测模型中，输出舆情传播态势预测结果。 【EN】The invention discloses a power public opinion monitoring method and system based on multi-fractal optimization, comprising the following steps: acquiring power public opinion data to be monitored; pre-processing public sentiment data to be monitored and established to obtain a public sentiment propagation situation time sequence; performing fractal feature extraction on the public opinion propagation situation time sequence, and inputting the fractal feature into a pre-trained public opinion situation classification model to obtain a public opinion situation classification result; selecting a pre-trained public opinion situation prediction model of a corresponding type according to the public opinion situation classification result; and inputting the public opinion spreading situation time sequence into the selected pre-trained public opinion spreading situation prediction model, and outputting a public opinion spreading situation prediction result.

摘要：【中文】本发明公开了一种基于厌氧发酵沼渣的超薄柔性炭纳米片氧还原催化剂的制备方法。该氧还原催化剂的制备方法，包括如下步骤：(1)以厌氧发酵沼渣为原料，惰性气体保护下，进行活化反应后冷却，再依次经过酸洗、水洗和干燥得到沼渣生物炭；(2)将步骤(1)得到的沼渣生物炭、铁的前驱体和氮的前驱体混合均匀，在惰性气体保护下，于反应容器中进行炭化反应，炭化反应后冷却至室温，炭化反应后的产物先使用盐酸浸洗，再使用去离子水水洗至洗涤液的pH为6‑7，再干燥，得到氧还原催化剂。本发明制备得到的氧还原催化剂比表面积大，性能稳定，氧还原催化剂的电化学活性优于传统的Pt/C催化剂，适用性广泛。 【EN】The invention discloses a preparation method of an ultrathin flexible carbon nanosheet oxygen reduction catalyst based on anaerobic fermentation biogas residues. The preparation method of the oxygen reduction catalyst comprises the following steps: (1) carrying out an activation reaction on anaerobic fermentation biogas residues serving as a raw material under the protection of inert gas, cooling, and then sequentially carrying out acid washing, water washing and drying to obtain biogas residue biochar; (2) uniformly mixing the biogas residue biochar obtained in the step (1), an iron precursor and a nitrogen precursor, carrying out carbonization reaction in a reaction container under the protection of inert gas, cooling to room temperature after the carbonization reaction, firstly washing a product after the carbonization reaction by using hydrochloric acid, then washing by using deionized water until the pH value of a washing solution is 6-7, and then drying to obtain the oxygen reduction catalyst. The oxygen reduction catalyst prepared by the method has the advantages of large specific surface area, stable performance, better electrochemical activity than that of the traditional Pt/C catalyst and wide applicability.

摘要：【中文】本发明公开了自行走式养殖水槽自动投饲系统及其操作方法，所述系统包括设于养殖水槽岸基硬化平台上的大容量自动计量下料料仓，和在养殖水槽内能够自动行走的电动自行走投饲装置；所述大容量自动计量下料料仓和电动自行走投饲装置电连接。大容量自动计量下料料仓用于存储饲料、为投饲装置自动定量加料、提供投饲装置闲时停靠及充电。与现有技术相比，本发明具有以下优点：所述系统及其操作方法通过料仓和料斗共同配合实现饲料的精准投放，避免养殖过程中的应激反应及饲料的浪费；所述系统和方法在没有轨道的情况下切换使用实现饲料投放的广度；所述系统和方法饲料存储简单、智能化程度高、能耗低、饲料利用率高且维护成本合理。 【EN】The invention discloses a self-walking type automatic feeding system for a culture water tank and an operation method thereof, wherein the system comprises a high-capacity automatic metering blanking bin arranged on a shore-based hardening platform of the culture water tank and an electric self-walking feeding device capable of automatically walking in the culture water tank; the high-capacity automatic metering blanking bin is electrically connected with the electric self-walking feeding device. The high-capacity automatic metering blanking bin is used for storing feed, automatically and quantitatively feeding the feeding device and stopping and charging the feeding device in idle time. Compared with the prior art, the invention has the following advantages: the system and the operation method thereof realize accurate feeding of the feed through the common matching of the bin and the hopper, so that the stress reaction and the feed waste in the culture process are avoided; the system and the method realize the feed feeding breadth by switching the use under the condition of no track; the system and the method have the advantages of simple feed storage, high intelligent degree, low energy consumption, high feed utilization rate and reasonable maintenance cost.

摘要：【中文】本发明涉及核电站维修技术领域，具体涉及一种适用于核反应堆中子通量管整体水压试验及氦气检查一体化装置。在中子通量管备件制备完成后，出于水压试验及无损检测的需要，设计出检漏装置，为备件质量检验提供支持。本发明中，氦气检漏仪和氦检漏连接装置通过波纹管卡扣连接，中子通量管和氦气检漏装置相连，其手柄端在中间主体的密封段固定，中间主体的密封段和密封球阀螺栓连接；处于氦气检漏状态时，中子通量管外壁充氦装置通过横截止阀和密封球阀相连，压力表通过竖截止阀和密封球阀相连；处于水压试验状态时，水压增压泵通过横截止阀和密封球阀相连。本发明不仅提高了效率，节省了成本，还能较好的实现检漏目的。 【EN】The invention relates to the technical field of nuclear power station maintenance, in particular to an integrated device suitable for a nuclear reactor neutron flux tube integral hydraulic test and helium gas inspection. After the preparation of the spare parts of the neutron flux tube is finished, a leakage detecting device is designed according to the requirements of a hydraulic test and nondestructive testing, and support is provided for quality inspection of the spare parts. In the invention, a helium leak detector and a helium leak detection connecting device are connected by a corrugated pipe buckle, a neutron flux tube is connected with the helium leak detection device, the handle end of the neutron flux tube is fixed on the sealing section of a middle main body, and the sealing section of the middle main body is connected with a sealing ball valve through a bolt; when the neutron flux tube is in a helium leakage detecting state, the helium filling device on the outer wall of the neutron flux tube is connected with the sealing ball valve through a transverse stop valve, and the pressure gauge is connected with the sealing ball valve through a vertical stop valve; when the test device is in a hydraulic test state, the hydraulic booster pump is connected with the sealing ball valve through the transverse stop valve. The invention not only improves the efficiency and saves the cost, but also can better realize the purpose of leak detection.

摘要：【中文】本发明公开了一种提高地震数据时深转换精度的方法，包括以下步骤：1)采用自适应高密度双谱速度扫描技术，得到每一道、每一个采样点地震数据的速度；2)在目标层位的控制下得到符合地层连续性和空间一致性的平均速度数据；3)利用测井资料数据拟合的层速度系数来对地震平均速度体进行趋势校正；4)利用多口井测井资料的速度数据与地震资料速度平均误差因子对随机的剩余误差进行校正；5)计算目标层目标区域的时深转换结果数据。本发明的有益效果：该方法以高精度高密度速度建模为基础，提出了平均速度趋势校正技术和剩余因子校正技术，解决了常规时深转换精度不足的问题。 【EN】The invention discloses a method for improving time-depth conversion precision of seismic data, which comprises the following steps: 1) obtaining the velocity of the seismic data of each channel and each sampling point by adopting a self-adaptive high-density double-spectrum velocity scanning technology; 2) obtaining average speed data according with formation continuity and space consistency under the control of a target horizon; 3) performing trend correction on the seismic average velocity volume by using a interval velocity coefficient fitted by the logging data; 4) correcting random residual errors by using velocity data of multi-well logging data and a seismic data velocity average error factor; 5) and calculating time-depth conversion result data of the target area of the target layer. The invention has the beneficial effects that: the method is based on high-precision high-density speed modeling, provides an average speed trend correction technology and a residual factor correction technology, and solves the problem of insufficient precision of conventional time-depth conversion.