Abstract: An integrated pump station includes: a mounting frame, a pump body, and an electric drive device. The pump body is arranged on the mounting frame; the electric drive device comprises a housing body, a motor, a frequency converter and a controller; the housing body is arranged on the mounting frame; the motor, the frequency converter and the controller are arranged in the housing body, the motor being connected to the pump body; the motor is connected to the frequency converter by means of an electric wire, the frequency converter is connected to the controller by means of an electric wire, and a water cooling pipeline of the motor, a water cooling pipeline of the frequency converter and an oil cooler of the pump body sequentially communicate with one another.

Abstract: A method of preparing a polyamide composite membrane using a vapor-assisted electrostatic spray is provided which relates to the field of preparation of polyamide composite membranes and comprises: step S1, adjusting a relative humidity of a surrounding environment of an electrostatic spray equipment to 80% to 90%; step S2, taking an amine monomer solution and an acyl chloride monomer solution as raw materials and placing the two raw materials in a spray system of the electrostatic spray equipment; step S3, wrapping a polymer ultrafiltration membrane on a receiving roller of the electrostatic spray equipment and setting electrostatic spray process parameters for electrostatic spraying; step S4, taking down an electrostatically-sprayed composite polymer membrane and placing the composite polymer membrane in an environment of 50 to 80° C. for heat treatment of 5 to 20 minutes, to prepare a finished polyamide composite membrane.

Abstract: A one-way cylinder opening valve suitable for a hydrogen energy handheld torch is provided and includes a valve body, a valve core assembly, a spring, a spring chamber, and a sealing ring. The spring chamber is connected to the valve body, the valve core assembly and the spring are arranged in the spring chamber, a valve body sealing lip is arranged on the valve body, and the sealing lip and the valve core assembly are sealed by means of a principle of compressing a non-metallic material to reach a sealing specific pressure of the non-metallic material, and the spring provides a sealing force for the valve core assembly; the sealing ring is arranged on an outer side of the valve body, so as to ensure sealing between the valve body and a gas cylinder. A through hole is provided in the spring chamber and used as a hydrogen inlet, and a hydrogen intake hole and a central flow channel of a valve core are provided in the valve core assembly.

Abstract: A drilling device for geotechnical engineering investigation is provided, including an outer supporting ring seat, where a center of the outer supporting ring seat is rotatably connected with a middle supporting ring seat through a first supporting shaft rod; a center of the middle supporting ring seat is rotatably connected with an inner supporting ring seat through a second supporting shaft rod; the first supporting shaft rod and the second supporting shaft rod are vertically crossed; a second rotating motor is fixedly installed at one end of the first supporting shaft rod on an outer surface of the outer supporting ring seat; a pow output end of the second rotating motor is fixedly connected with the first supporting shaft rod, an other end of the first supporting shaft rod is provided with a first locking mechanism for position limitation.

Abstract: A method and an apparatus for detecting a solar cell of a photovoltaic plant. The method includes: obtaining a first infrared image and a second infrared image, where the first infrared image includes infrared image information corresponding to an ambient infrared signal reflected by a to-be-detected solar cell operating in a short-circuit state, the second infrared image includes infrared image information corresponding to an infrared signal emitted by the to-be-detected solar cell operating in a first state and infrared image information corresponding to an ambient infrared signal reflected by the to-be-detected solar cell, and the first state is another state other than the short-circuit state; and detecting, based on the first infrared image and the second infrared image, whether the to-be-detected solar cell has a defect.

Abstract: The embodiments provide a method of augmenting environmental scenes and an autonomous vehicle testing system.

Abstract: The present invention relates to a metal-organic hybrid lattice material and the application in the detection of radiation sources. In the invention, a water-soluble thorium salt and 2,2?:6?,2?-terpyridine-4?-carboxylic acid are subjected to a solvothermal reaction in water and an organic mixed solvent to obtain a metal-organic hybrid lattice material. The crystalline material produces radiation-induced discoloration and photoluminescence change under ultraviolet light, X-ray, ?-ray, ?-ray, and so on. The material is useful for qualitative and quantitative detection and calibration after high-dose irradiation. Compared with the traditional radiation-induced color change indicator labels, the material achieves the visual qualitative and quantitative detection and has strong radiation stability, high reuse rate, wide detection range, and good linear relationship, to solve the problem of traditional materials relying on professional optical equipment to quantify the radiation dose.

Abstract: The disclosure provides an OLED display substrate, a manufacturing method thereof, and a display device, wherein the OLED display substrate is provided with a display area and an edge area surrounding the display area, the OLED display substrate includes a back plate and a pixel-defining layer on the back plate, and a protrusion is provided on the back plate at the edge area of the OLED display substrate.

Abstract: A fault detection apparatus includes an image capture module and a detection module, and the fault detection apparatus is configured to capturing an image of the photovoltaic module in a light emitting state, and performing fault detection on the photovoltaic module based on the image when a signal-to-noise ratio of the image is maximized, to identify a fault type of the photovoltaic module.

Abstract: The embodiments provide a method of augmenting environmental scenes and an autonomous vehicle testing system.

Abstract: A prediction-type intelligent vehicle decision control method and apparatus, a vehicle, and a storage medium are provided.

Abstract: A data processing system in the power station operation and maintenance system may determine a faulty module and a normal module based on module data of each photovoltaic module in a photovoltaic string, and obtain first power generation data of the faulty module and second power generation data of the normal module. Further, the data processing system may determine an annual lost energy yield of the faulty module based on the first power generation data, the second power generation data, and a preset energy yield of the photovoltaic power station, and obtain a target operation and maintenance measure from a plurality of operation and maintenance measures based on the annual lost energy yield. In this case, a communication system in the power station operation and maintenance system may notify an operation and maintenance user of the photovoltaic power station to perform operation and maintenance on the faulty module.

Abstract: A preprocessing system includes a first port, where one end of the first port is coupled to a first switch, and the other end of the first port is suspended, where the first switch has a connecting end configured to couple to a first interface and is configured to connect a filter and the first interface, a second port configured to receive a first signal or a second signal, where the filter is configured to filter the first signal to obtain a first positioning signal and a second positioning signal, provide the first positioning signal for the first switch, and provide the second positioning signal for a second interface of a global navigation satellite system (GNSS) chip to adapt to a plurality of antenna configuration types and to achieve universality.

Abstract: A method for calibrating a driving risk identification model includes: S1. establishing a vehicle platform by installing an information acquisition device on a test vehicle; S2. acquiring synchronized test data related to the test vehicle and driving scenarios; S3. extracting moments when the drivers start to press the accelerator pedal, start to release the accelerator pedal, start to press the brake pedal in the driving scenarios, and start to release the brake pedal, so as to define risk level values respectively corresponding to the moments; S4. obtaining a risk identification curve of the drivers in different driving scenarios, wherein the risk identification curve represents the drivers' judgment of the risk level over time; S5. using the risk identification curve to calibrate the driving risk identification model.

Abstract: A photovoltaic cell detection method includes determining a first output power working at a first voltage and a second output power working at a second voltage, where a difference between the first output power and the second output power is less than a power difference threshold, and where both the first output power and the second output power are greater than 0; controlling the photovoltaic cell to work at the first voltage, and obtaining first infrared image information of the photovoltaic cell; and controlling the photovoltaic cell to work at the second voltage, and obtaining second infrared image information of the photovoltaic cell, where both the first infrared image information and the second infrared image information are used to jointly detect whether the photovoltaic cell is faulty.

Abstract: In a detection condition determining method, a control center obtains a working parameter value of a target photovoltaic device in a first time length closest to a current time point, where the working parameter value of the target photovoltaic device may be provided for the control center by a photovoltaic inverter coupled to the target photovoltaic device. The control center detects the target photovoltaic device in response to the control center determining, based on the working parameter value, that an environmental parameter value of the target photovoltaic device meets an environmental parameter threshold. Using the method helps reduce operation and maintenance costs of a photovoltaic power station.

Abstract: A drilling device for geotechnical engineering investigation is provided, including an outer supporting ring seat, where a center of the outer supporting ring seat is rotatably connected with a middle supporting ring seat through a first supporting shaft rod; a center of the middle supporting ring seat is rotatably connected with an inner supporting ring seat through a second supporting shaft rod; the first supporting shaft rod and the second supporting shaft rod are vertically crossed; a second rotating motor is fixedly installed at one end of the first supporting shaft rod on an outer surface of the outer supporting ring seat; a pow output end of the second rotating motor is fixedly connected with the first supporting shaft rod, an other end of the first supporting shaft rod is provided with a first locking mechanism for position limitation.

Abstract: The photovoltaic power generation system includes a controller and M groups of DC-DC circuits. Each group of DC-DC circuits include N DC-DC circuits, where M is a positive integer, and N is an integer greater than 1. An input end of each DC-DC circuit is connected to at least one photovoltaic unit, and each photovoltaic unit includes at least one photovoltaic module. The controller controls the N DC-DC circuits in each group of DC-DC circuits to sequentially start online IV curve scanning and controls a time interval at which two adjacent DC-DC circuits start online IV curve scanning to be less than duration of online IV curve scanning performed by one DC-DC circuit. The photovoltaic power generation system can reduce a fluctuation of a power output during online IV curve scanning, reduce duration of online IV curve scanning performed by the photovoltaic power generation system.

Abstract: The present invention relates to an all-solid-state iron-air battery, which comprises a positive electrode, a negative electrode, a separator and a solid electrolyte, wherein the positive electrode and the negative electrode are respectively arranged on opposite sides of the solid electrolyte; the separator is arranged between the negative electrode and the solid electrolyte to form a sandwich structure; the negative electrode is a ferrate material formed from an alkali metal-doped iron oxide; the positive electrode is a metal or a metal oxide material with an efficient redox catalytic activity; the solid electrolyte is an electrolyte material capable of efficiently conducting oxygen ions; and the separator is a film-like or sheet-like material having oxygen ion conduction and electronic insulation performances.

Abstract: A power station inspection system and a power station inspection method are disclosed. A power station inspection system includes an unmanned aerial vehicle, and an unmanned aerial vehicle flight controller, a central controller, and at least two types of data collection terminals that are disposed on the unmanned aerial vehicle. The central controller is configured to control the unmanned aerial vehicle flight controller, so that the unmanned aerial vehicle flight controller controls flight of the unmanned aerial vehicle. The central controller is further configured to control the at least two types of data collection terminals to collect at least two types of component image data of a power station component in a flight process of the unmanned aerial vehicle.