摘要：本发明公开了一种基于地磁信息测量弹体的大跨度转速的方法、装置及系统。所述弹体上设置有用于测量地磁信号的地磁传感器，所述方法包括循环执行以下步骤直到所述地磁信号的所有原始值全部计算完毕：获取所述地磁信号的当前窗口内的地磁信号的原始值，对所述当前窗口内的地磁信号的原始值进行归一化处理；基于所述归一化处理后的地磁信号的原始值计算所述当前窗口内正弦波的周期，并基于所述当前窗口内正弦波的周期计算所述弹体的当前转速；基于所述当前窗口内正弦波的周期确定下一窗口的时间设定范围，将所述下一窗口作为所述当前窗口。本发明解决了现有技术仅能测量弹体低转速的范围、无法实现大跨度范围测量的技术问题。

摘要：【中文】本发明公开了一种兜底式振动锤型钢拔桩机和拔桩方法，拔桩机包括拉森式型钢杆部和桩套；桩套的标准槽钢和敞口拉森式槽钢扣合焊接，标准槽钢的两翼缘板设有转轴，转轴可转动安装有兜底钢板，标准槽钢翼缘板内表面焊接限位块，兜底钢板设有三棱凸条；敞口拉森式槽钢与杆部底端焊接；该拔桩机还包括一根主导管和三根分支导管，每个分支导管底端设有喷口；该方法的关键在于：一次性沉入到废桩底部，利用兜底钢板兜住废桩底端，然后一次性拔出。该拔桩机和拔桩方法施工速度快、效率高，且结构相对简单，制造成本低。 【EN】The invention discloses a pocket bottom type vibration hammer section steel pile extractor and a pile extracting method, wherein the pile extractor comprises a Larsen section steel rod part and a pile sleeve; the standard channel steel of the pile sleeve and the open Larsen channel steel are buckled and welded, two flange plates of the standard channel steel are provided with rotating shafts, a pocket bottom steel plate is rotatably arranged on the rotating shafts, a limiting block is welded on the inner surface of each flange plate of the standard channel steel, and the pocket bottom steel plate is provided with a triangular convex strip; the open Larsen channel steel is welded with the bottom end of the rod part; the pile extractor also comprises a main guide pipe and three branch guide pipes, and the bottom end of each branch guide pipe is provided with a nozzle; the key of the method is as follows: and sinking to the bottom of the waste pile at one time, utilizing a bottom steel plate pocket to hold the bottom of the waste pile, and then pulling out the waste pile at one time. The pile extractor and the pile extracting method have the advantages of high construction speed, high efficiency, relatively simple structure and low manufacturing cost.

摘要：本公开提供了一种三边定位方法、装置及系统。其中，该方法包括：采用双边双向测距分别获取多个基站到标签的距离，以所述多个基站中的每个基站为圆心、以所获取的相应的距离为半径，生成多个圆；确定所述多个圆的相交区域，并根据所述双边双向测距的误差值对所述相交区域进行修正，得到有效区域；对所述有效区域中的多个点的坐标值求平均值，得到所述标签的估计坐标，以对所述标签进行定位。本公开解决了由于非视距的存在而造成的定位精确度不高的技术问题。

摘要：【中文】一种结合比率运算技术的数字锁相放大器及其锁相放大方法，该锁相放大器包括输入信号处理模块、参考信号产生模块、模数转换模块及数字处理模块，参考信号产生模块输出两路相互正交的正弦参考信号，数字处理模块包括数字乘法器、数字低通滤波器和数字运算器。本锁相放大器在检测信号过程中可以实现较宽的信号输入范围，有效地降低了对前端放大电路的带宽要求，节省了功耗。通过采用比率运算技术，可以实现对电路中乘性噪声带来的波动增益进行抵消，进而有效地提高了电路的信噪比。本发明可以广泛应用于微弱信号测量领域中。 【EN】A digital phase-locked amplifier combined with ratio operation technology and a phase-locked amplifying method thereof are provided, the phase-locked amplifier comprises an input signal processing module, a reference signal generating module, an analog-to-digital conversion module and a digital processing module, the reference signal generating module outputs two paths of sine reference signals which are mutually orthogonal, and the digital processing module comprises a digital multiplier, a digital low-pass filter and a digital arithmetic unit. The phase-locked amplifier can realize a wider signal input range in the signal detection process, effectively reduces the bandwidth requirement on a front-end amplifying circuit, and saves power consumption. By adopting the ratio operation technology, the fluctuation gain caused by multiplicative noise in the circuit can be counteracted, and the signal-to-noise ratio of the circuit is effectively improved. The invention can be widely applied to the field of weak signal measurement.

摘要：【中文】一种电平触发型的自动调节增益放大电路，包括可编程增益放大器和自动增益控制电路，所述自动增益控制电路包括比较器和数字逻辑电路，所述比较器，用于判定信号大小是否超过预设电平，输出的数字信号用来决定可编程增益放大器的增益。本发明采用全新设计的前馈控制模式自动增益控制电路，基于电平触发动作原理，避免了峰值检测电路的使用，降低了整个电路的静态功耗，能实现较快的增益调节响应，同时本发明无需峰值检测电路，降低了整个电路的静态功耗，具有功耗低、结构简单、可控性强等优点。 【EN】A level-triggered automatic gain adjusting amplifying circuit comprises a programmable gain amplifier and an automatic gain control circuit, wherein the automatic gain control circuit comprises a comparator and a digital logic circuit, the comparator is used for judging whether the signal magnitude exceeds a preset level, and an output digital signal is used for determining the gain of the programmable gain amplifier. The invention adopts a newly designed feedforward control mode automatic gain control circuit, based on the level trigger action principle, avoids the use of a peak detection circuit, reduces the static power consumption of the whole circuit, can realize faster gain adjustment response, does not need the peak detection circuit, reduces the static power consumption of the whole circuit, and has the advantages of low power consumption, simple structure, strong controllability and the like.

摘要：本发明公开了一种燃料电池低温启动的空气加热系统及其控制方法，所述的系统包括空气滤清器、空气泵、空气加热器、增湿器、入口温度传感器、燃料电池堆、堆温度传感器、蓄电池和控制器。所述的燃料电池堆上安装有堆温度传感器。本发明利用空气加热器加热后的空气对燃料电池堆的空气反应界面以及其它电池组件加热，加速消融电极上的冰晶，使燃料的传质和质子的传递顺利进行，不会因大功率发电致使局部过热而损伤电极，加速温度处于零度以下燃料电池的启动，同时燃料电池快速启动以后，可以节约辅助电源蓄电池的能耗，防止出现过度放电或者电力不足无法启动燃料电池现象，延长蓄电池的使用寿命。

摘要：针对多个站点同时进行两路输入电源远程切换时叠加冲击电流过大的问题，本发明提供一种双路电源远程切换系统，属于电力系统供电领域。包括：远程维护终端，用于输入几个车站站点的切换控制命令，逐个向所述几个车站站点发出切换控制命令，实现逐个切换，还用于实时接收各车站站点的视频采集装置的状态指示灯视频信息，并对该视频信息进行图像识别，识别出双路电源的工作状态；转换控制器，用于接收切换控制命令，将切换控制指令发送至车站站点内的切换装置；切换装置，用于接收切换指令，根据切换命令切换车站站点内的双路电源；视频信息采集装置，用于实时采集车站站点内的双路电源状态指示灯的视频信息，并发送给远程维护终端。

摘要：【中文】本申请公开了一种用于曲面网架屋面天窗的防水安装结构，包括：多根主檩条、多根方形立柱、天窗结构环梁、铝镁锌屋面彩板、横向几字形支架和纵向几字形衬檩条，多根主檩条相互垂直交叉围成网状的第一支撑面；第一支撑面的周缘与曲面网架屋面的天窗孔周缘相连接。该曲面屋顶天窗结构，与传统的防水措施相比较，构造简单，防水效果良好，施工成本低，便于推广应用。 【EN】The application discloses a waterproof mounting structure for curved surface rack roofing skylight includes: the roof support comprises a plurality of main purlines, a plurality of square stand columns, skylight structure ring beams, aluminum-magnesium-zinc roof color plates, transverse inverted U-shaped supports and longitudinal inverted U-shaped lining purlines, wherein the main purlines are mutually perpendicular and intersect to form a net-shaped first support surface; the periphery of the first supporting surface is connected with the periphery of the skylight hole of the curved-surface net rack roof. This curved surface roof skylight structure compares with traditional water-proof measure, and simple structure, water-proof effects is good, and construction cost is low, and the facilitate promotion is used.

摘要：【中文】本发明提供一种空调器室内机以及空调器，空调器室内机包括壳体、风机和蒸发器，壳体具有进风口和出风口，蒸发器设置在进风口和出风口之间，风机带动气流自进风口向出风口运动；还包括：接水盘，设置于蒸发器下方，用于盛接蒸发器产生的冷凝水；布水件，为可与水发生毛细现象的毛细管结构，包括伸入接水盘与冷凝水接触的引水部以及位于风机作用区域的作用部；布水件通过引水部将冷凝水引导至作用部。由于布水件为可与水发生毛细现象的毛细管结构，接水盘中的冷凝水因为毛细管作用沿自引水部沿作用部上升并分布在作用部。作用部位于风机的作用区域，因此布水件上的冷凝水在风机的作用下随气流自出风口吹出，从而起到利用冷凝水对空气加湿的作用。 【EN】The invention provides an air conditioner indoor unit and an air conditioner, wherein the air conditioner indoor unit comprises a shell, a fan and an evaporator, the shell is provided with an air inlet and an air outlet, the evaporator is arranged between the air inlet and the air outlet, and the fan drives airflow to move from the air inlet to the air outlet; further comprising: the water receiving tray is arranged below the evaporator and used for containing condensed water generated by the evaporator; the water distribution piece is of a capillary structure which can generate capillary phenomenon with water and comprises a water diversion part extending into the water receiving tray to be contacted with the condensed water and an action part positioned in an action area of the fan; the water distributing member guides the condensed water to the acting part through the water guiding part. Because the water distribution piece is of a capillary structure which can generate capillary phenomenon with water, condensed water in the water receiving tray rises along the action part from the water guide part due to the capillary action and is distributed on the action part. The action part is positioned in the action area of the fan, so that the condensed water on the water distribution piece is blown out from the air outlet along with the air flow under the action of the fan, and the function of humidifying the air by utilizing the condensed water is achieved.

摘要：【中文】本发明公开了一种拖拉机整机装配质量评价方法和检测装置，针对拖拉机终检过程中对装配质量的快速检测需求，本发明以拖拉机整机振动特征为切入点，采用整机振动特征对比合格样本基准的方法，快速实现合格性检测的同时，基于振动特征，提供潜在缺陷和故障类型定位，适用于拖拉机企业总装下线出厂前终检过程中，对于整机及装配质量的快速检测评价，以弥补终检环节中的整机装配质量检测手段缺失、不全面、过于主观，以及潜在故障难以预先发现等不足，同时，检测装置采用磁吸式MEMS多轴加速度传感器，结构轻便、成本低廉、测试操作简便，满足检测线快速检测节拍要求。 【EN】The invention discloses a method and a device for evaluating the whole assembly quality of a tractor, aiming at the requirement of quick detection of the assembly quality in the final inspection process of the tractor, the invention takes the vibration characteristic of the whole tractor as an entry point, adopts a method of comparing the vibration characteristic of the whole tractor with a qualified sample standard, quickly realizes the qualification detection, based on vibration characteristics, provides potential defect and fault type positioning, is suitable for final inspection before final assembly and delivery of tractor enterprises, the rapid detection and evaluation of the whole machine and the assembly quality can make up the defects of missing, incomplete and over-subjective detection means of the whole machine assembly quality in the final inspection link, difficult pre-discovery of potential faults and the like, meanwhile, the detection device adopts a magnetic type MEMS multi-axis acceleration sensor, the structure is light, the cost is low, the test operation is simple and convenient, and the requirement of the detection line for rapidly detecting the beat is met.