摘要：【中文】本发明公开了一种图像优化方法、装置、设备及存储介质，所述方法包括：当接收到图像时，根据预设失真代价函数计算所述图像中各像素点的图像纹理值，并通过各所述像素点的像素值计算局部起伏值；根据各所述图像纹理值与各所述局部起伏值，调整所述预设失真代价函数，得到目标失真代价函数；基于所述目标失真代价函数对所述图像进行隐写，完成所述图像的优化。本发明通过经由图像纹理值和局部起伏值调整后的目标失真代价函数对图像进行隐写，使隐写后的含密图像像素的起伏程度与周围像素的起伏程度相似，进而含密图像被隐写分析工具检测出含密的概率降低，使含密图像具有更好的抗检测性，提高了图像隐写的安全性。 【EN】The invention discloses an image optimization method, an image optimization device, image optimization equipment and a storage medium, wherein the method comprises the following steps: when an image is received, calculating an image texture value of each pixel point in the image according to a preset distortion cost function, and calculating a local fluctuation value according to the pixel value of each pixel point; adjusting the preset distortion cost function according to each image texture value and each local fluctuation value to obtain a target distortion cost function; and steganography is carried out on the image based on the target distortion cost function, and the optimization of the image is completed. According to the method, the image is subjected to steganography through the target distortion cost function adjusted by the image texture value and the local fluctuation value, the fluctuation degree of the pixels of the steganographically-contained dense image is similar to the fluctuation degree of the surrounding pixels, the probability that the dense image is detected by a steganography analysis tool is further reduced, the dense image has better anti-detection performance, and the security of image steganography is improved.

摘要：【中文】本发明公开了一种图像隐写方法、装置、设备及计算机可读存储介质，该方法包括步骤：当获取到待隐写图像后，获取所述待隐写图像对应的各空域图像块；计算所述空域图像块的第一失真代价值，以及确定所述空域图像块对应DCT系数的量化步长；根据所述第一失真代价值和所述量化步长计算所述DCT系数的第二失真代价值，并根据所述第二失真代价值在所述待隐写图像中嵌入秘密信息。本发明提高了通过该失真代价值对图像进行隐写，即在图像中嵌入秘密信息后，所得的隐写后图像的抗检测性能，且由于量化步长不需要计算，可以在空域图像块中直接获取得到，降低了计算失真代价值对应函数的计算量，从而提高了对图像进行隐写操作的操作效率。 【EN】The invention discloses an image steganography method, a device, equipment and a computer readable storage medium, wherein the method comprises the following steps: after an image to be steganographically displayed is obtained, obtaining each airspace image block corresponding to the image to be steganographically displayed; calculating a first distortion cost value of the spatial domain image block, and determining a quantization step size of a DCT coefficient corresponding to the spatial domain image block; and calculating a second distortion cost value of the DCT coefficient according to the first distortion cost value and the quantization step size, and embedding secret information in the image to be steganographically according to the second distortion cost value. The invention improves the anti-detection performance of the steganography image obtained by embedding the secret information into the image, and can be directly obtained in the airspace image block because the quantization step length does not need to be calculated, thereby reducing the calculated amount of the function corresponding to the calculated distortion cost value and improving the operation efficiency of steganography operation on the image.

摘要：【中文】本发明涉及一种配电台区系统及配电台区故障识别定位系统，属于电力故障识别技术领域。故障识别定位系统包括：无线中继终端，用于设置在用户表箱的进线侧，并将中继信息上传给无线集中终端；无线集中终端，用于设置在分支线路进线侧，并将集中信息上传给无线集中终端或故障识别定位终端；故障识别定位终端，用于设置在智能配变终端的出线侧，以接收各分支箱出线侧的无线集中终端的集中信息，并根据接收的集中信息进行故障识别定位。本发明可以获知用户表箱和分支线路的相关电气信息、身份信息和位置信息，故障识别定位终端根据获取的用户表箱‑线路之间的对应关系，可以进行故障识别定位。 【EN】The invention relates to a power distribution station system and a power distribution station fault identification and positioning system, and belongs to the technical field of power fault identification. The fault identification and positioning system comprises: the wireless relay terminal is arranged on the incoming line side of the user meter box and used for uploading relay information to the wireless centralized terminal; the wireless centralized terminal is arranged at the incoming line side of the branch line and uploads the centralized information to the wireless centralized terminal or the fault identification and positioning terminal; and the fault identification positioning terminal is arranged on the outgoing line side of the intelligent distribution transformer terminal so as to receive the centralized information of the wireless centralized terminals on the outgoing line side of each branch box and perform fault identification positioning according to the received centralized information. The invention can acquire the relevant electrical information, identity information and position information of the user meter box and the branch circuit, and the fault identification positioning terminal can identify and position the fault according to the acquired corresponding relation between the user meter box and the circuit.

摘要：【中文】本发明提供了一种LCC‑S型MC‑WPT系统的磁耦合机构参数多目标优化方法，按照以下步骤进行：S1：设定线圈半径、传输距离、线圈匝数作为待优化参数；S2：以系统输出功率、传输效率和系统总谐波畸变率为目标函数，并基于步骤S1中的待优化参数和系统中其它电路元件参数确定各个目标函数的表达式；S3：确定约束条件；S4：基于NSGA‑Ⅱ优化算法确定待优化参数的优化结果。该方法以线圈半径、传输距离、线圈匝数作为决策变量，以系统传输效率、传输功率与总谐波畸变率为目标函数，采用NSGA‑II实现了系统磁耦合机构几何参数的最优化，并验证了其应用在LCC‑S型MC‑WPT系统中的可行性和有效性。 【EN】The invention provides a magnetic coupling mechanism parameter multi-objective optimization method of an LCC-S type MC-WPT system, which is carried out according to the following steps: s1: setting the radius of the coil, the transmission distance and the number of turns of the coil as parameters to be optimized; s2: taking the system output power, the transmission efficiency and the total harmonic distortion rate as objective functions, and determining expressions of the objective functions based on the parameters to be optimized in the step S1 and other circuit element parameters in the system; s3: determining a constraint condition; s4: and determining an optimization result of the parameter to be optimized based on the NSGA-II optimization algorithm. According to the method, the coil radius, the transmission distance and the coil turns are used as decision variables, the system transmission efficiency, the transmission power and the total harmonic distortion rate are used as objective functions, the optimization of geometric parameters of a system magnetic coupling mechanism is realized by adopting NSGA-II, and the feasibility and the effectiveness of the method applied to the LCC-S type MC-WPT system are verified.

摘要：【中文】本发明涉及一种低压直流断路器双线圈式斥力机构等效建模方法，属于低压直流配电技术领域，包括如下步骤：将低压直流断路器中双线圈抽象为等效电感和等效电阻的组合，构建等效电路图；确定所述等效电路图中各元件的电磁特性，建立等效电路方程；根据所述电磁特性和所述双线圈的运动特性，构建运动方程；联立所述等效电路方程和运动方程，构建所述双线圈式斥力机构的动态模型，解决现有技术中的电磁斥力机构仿真研究精度差、不可靠的问题。 【EN】The invention relates to an equivalent modeling method for a double-coil type repulsive force mechanism of a low-voltage direct-current circuit breaker, belonging to the technical field of low-voltage direct-current power distribution and comprising the following steps of: abstracting a double coil in a low-voltage direct-current circuit breaker into a combination of equivalent inductance and equivalent resistance to construct an equivalent circuit diagram; determining the electromagnetic characteristics of each element in the equivalent circuit diagram, and establishing an equivalent circuit equation; constructing a motion equation according to the electromagnetic characteristics and the motion characteristics of the double coils; the equivalent circuit equation and the motion equation are combined to construct a dynamic model of the double-coil type repulsive force mechanism, and the problems that the simulation research precision of the electromagnetic repulsive force mechanism in the prior art is poor and unreliable are solved.

摘要：【中文】本发明涉及一种建筑内冷热负荷自适应调节方法及系统，属于建筑冷热负荷控制技术领域，1)采集建筑内冷热负荷影响因素，以及建筑内不同区域冷热负荷的实际值；所述冷热负荷为维持温度的负荷量；2)根据冷热负荷影响因素计算得到不同区域的冷热负荷的预测值，并计算对应区域的冷热负荷的预测值与实际值之间的差值；3)根据所述差值调节冷热负荷供给，如果差值大于0，减少对应区域的冷热负荷供给；如果差值小于0，增加对应区域的冷热负荷供给，解决现有建筑的冷热负荷刚性供给、冷热量浪费及区域间不平衡现象严重的问题。 【EN】The invention relates to a method and a system for self-adaptive adjustment of cold and heat loads in a building, belonging to the technical field of cold and heat load control of the building, and comprising the following steps of 1) collecting the influence factors of the cold and heat loads in the building and the actual values of the cold and heat loads in different areas in the building; the cold and hot load is the load for maintaining the temperature; 2) calculating predicted values of the cold and hot loads of different areas according to the cold and hot load influence factors, and calculating a difference value between the predicted value and an actual value of the cold and hot loads of the corresponding area; 3) adjusting cold and hot load supply according to the difference, and reducing cold and hot load supply of the corresponding area if the difference is greater than 0; if the difference is less than 0, the cold and heat load supply of the corresponding area is increased, and the problems of rigid cold and heat load supply, cold and heat quantity waste and serious inter-area imbalance of the existing building are solved.

摘要：【中文】本发明涉及一种隔离开关状态识别方法及装置，所述方法包括：对于合闸识别来说：采集标准分闸图像，进而得到触头合位置图像Ic；提取触头合位置图像Ic中面积最大的前三个图像块轮廓并计算面积，记录其面积为a1、a2、a3；进而得到合闸对比灰度图Ic1；采集隔离开关的状态图像，得到状态灰度图Im；用所述合闸对比灰度图Ic1减去所述状态灰度图Im得到合闸差值图像Ic2；相应的，也进行提取、计算，并且将提取、计算的结果与上述a1、a2、a3分别进行比较，以确定合闸匹配度；根据所述合闸匹配度、分闸匹配度判断是否分合闸到位。分闸识别类似。本发明的方法算法实现简单、实施成本低。 【EN】The invention relates to a method and a device for identifying the state of an isolating switch, wherein the method comprises the following steps: for closing recognition: collecting a standard opening image to further obtain a contact closing position image Ic; extracting the outlines of the first three image blocks with the largest area in the contact closing position image Ic, calculating the areas, and recording the areas as a1, a2 and a 3; further obtaining a closing comparison gray scale image Ic 1; acquiring a state image of the isolating switch to obtain a state gray level image Im; subtracting the state gray scale image Im from the closing comparison gray scale image Ic1 to obtain a closing difference image Ic 2; correspondingly, extraction and calculation are also carried out, and the extraction and calculation results are respectively compared with the a1, a2 and a3 to determine the closing matching degree; and judging whether the opening and closing are in place or not according to the closing matching degree and the opening matching degree. The opening identification is similar. The method has the advantages of simple algorithm implementation and low implementation cost.