9results about How to "Small coverage" patented technology

The invention discloses an environment monitoring device based on artificial intelligence, and relates to the technical field of environment monitoring. The device comprises a device body, the top of the device body is provided with a driving assembly, the center of the top of the device body is provided with a Bluetooth assembly, the Bluetooth assembly is interconnected with a mobile phone through an intelligent APP, the device further comprises an anti-jamming device, the anti-jamming device is arranged above the device body, and the anti-jamming device comprises an electric telescopic column, a monitoring assembly and a sensing assembly. The bottom of the electric telescopic column is fixedly installed on the top edge of the device body, the bottom of the monitoring assembly is fixedly installed on the top of the telescopic end of the electric telescopic column, the monitoring assembly communicates with the Bluetooth assembly, and the back of the sensing assembly is fixedly installed on the front of the monitoring assembly. According to the invention, the monitoring assembly realizes monitoring height adjustment, which is different from inconvenience caused by manual adjustment of a transmission thread monitoring device by a worker, so that real-time monitoring is realized through automatic adjustment, and hands of the worker are prevented from being worn and injured.

The embodiment of the present invention relates to the field of front-end testing technology, and provides a front-end page anomaly detection method, device, electronic device and medium, the method comprising: obtaining a video of a user to be detected accessing a front-end page after privacy protection processing; extracting elements from each frame of the video of the user accessing the front-end page to obtain visual elements of each frame; classifying each frame based on the visual elements of each frame to obtain multiple frame pages corresponding to multiple page categories; performing anomaly detection on multiple frame pages corresponding to each page category based on the page element features of each page category. Thus, under the premise of protecting user privacy, based on the data of the front-end display screen recording, unsupervised and supervised machine learning, business rules, etc. are used to implement front-end anomaly detection based on a combination strategy, so as to identify abnormal pages and abnormal jumps in the entire link under the premise of protecting user privacy, thereby automatically mining the front-end display anomaly.

This utility model discloses a battery pack, comprising a first mounting plate, a second mounting plate, and a bend. Welding holes are provided on the first and second mounting plates. These welding holes are not through holes, and the diameter of the circular hole on the near end face is smaller than the diameter on the far end face. An inner cavity is provided inside the welding hole, and the inner wall of the welding hole has an inclination angle of 50° to 70°. A protective flange that mates with the welding hole is provided near the near end face of the welding hole, and the upper end face of the protective flange is slightly higher than the horizontal plane of the first and second mounting plates. Compared with the prior art, the beneficial effect of this utility model is that it provides a countersunk hole molten pool structure at the welding point on the battery pack. During battery assembly welding, this structure can block a certain amount of molten metal splashing, reduce the coverage area of ​​the splashed metal, and provide some containment for the molten metal, reducing the possibility of splashed metal getting stuck between the battery cells and puncturing the insulation.

The utility model discloses an anti-explosion energy-saving rapid assembly type battery workshop which comprises a connecting cabin provided with a connecting port and a functional cabin provided with a butt joint port. The butt joint port and the connecting port form a fire insulation channel, the functional cabins are used for placing battery production equipment or power supply equipment or environment control equipment, and the connecting cabins are used for communicating the multiple functional cabins. Through the structural design, the connecting cabin and the functional cabin are directly assembled for use and can be disassembled on site after a project is finished. And due to the design of the functional cabin, the occupied area is reduced, the coverage range of the environment control equipment is also reduced, and the energy consumption is further reduced. The distance between a fire source in the functional cabins and the connecting cabins can be increased through the fire insulation channels, so that spreading of open fire is effectively delayed, the functional cabins and the connecting cabins can be controlled separately through the fireproof doors, and when a fire disaster occurs, the disaster situation is controlled in a certain independent cabin, so that spreading of the fire behavior is delayed.

The utility model discloses an alcohol stove which comprises a tank body used for containing fuel and a hollow stove body arranged above the tank body in a suspended mode through a plurality of supports. The tank body is provided with a micrometering valve and an inflating nozzle which are communicated with the inside of the tank body, and the inflating nozzle is connected with an inflating balloon; the middle of the hollow furnace body is provided with a fire distribution furnace end and a vaporization coil pipe spirally arranged above the fire distribution furnace end in a surrounding mode, one end of the vaporization coil pipe is communicated with the fire distribution furnace end, and the other end of the vaporization coil pipe is communicated with the micrometering valve. A bearing frame higher than the hollow furnace body is arranged on one side of the upper end of the support, one end of the bearing frame is rotationally connected with the upper end of the support, and a rotation limiting structure used for limiting the rotation angle of the bearing frame is arranged between the bearing frame and the support. Vaporized alcohol can be fully combusted, combustion is more violent, the heating capacity is high, a user can conveniently carry the alcohol stove outdoors for use, the alcohol stove can be suitable for cooking utensils of different sizes, and safety is high.

The invention discloses environment-friendly agricultural deinsectization equipment based on environmental protection, and relates to the technical field of agricultural deinsectization. The environment-friendly agricultural deinsectization equipment based on environmental protection comprises a machine body, a storage box installed below the machine body and used for storing environment-friendly pesticide, a hose connected to the side wall of the storage box and used for conveying pesticide liquid, and a spray head fixed to one end of the hose and used for spraying the pesticide liquid. An adjusting assembly for changing the spraying angle of the liquid medicine, a distance adjusting assembly for changing the interval between the spraying head and the machine body and a concentrating assembly for changing the state of sprayed liquid drops are arranged below the storage box, and the adjusting assembly comprises a connecting shaft fixed to the spraying head and used for supporting the spraying head; the fixed seat is fixed on the connecting shaft and transmits acting force for changing the angle of the spray head, and a rotating shaft is fixed in the fixed seat; and the phenomenon of liquid medicine drifting caused by wind power is reduced, so that the pesticide applying precision is improved, the influence on a non-target area is reduced, and the risk of environmental pollution is reduced.

This invention discloses a high-precision bandgap reference circuit, belonging to the field of analog integrated circuit design technology. The BGR circuit includes a power supply voltage input terminal AVDD, a ground terminal GND, PMOS transistors P1-P22, NMOS transistors N1-N14, and bipolar junction pnp transistors Q1-Q4. In this BGR circuit, the sources of PMOS transistors P1, P2, P3, P4, and P5 are connected to the power supply voltage input terminal AVDD. This invention can solve the problems of output voltage deviation and temperature coefficient deterioration caused by device mismatch in traditional bandgap reference structures, and further reduces the temperature coefficient of the bandgap reference output voltage and improves its accuracy by employing second-order curvature calibration technology. This significantly reduces the coverage area required for first-order compensation, improves the accuracy of the bandgap reference output voltage, and improves the temperature coefficient.

The invention relates to a solar cell and a photovoltaic module. The solar cell comprises a semiconductor substrate which is provided with a first surface and a second surface which are oppositely arranged; the first intrinsic semiconductor layer is arranged on the first surface; the first doping layer is arranged on one side, deviating from the semiconductor substrate, of the first intrinsic semiconductor layer; wherein the projection area of the orthographic projection of the first doping layer on the semiconductor substrate is smaller than the projection area of the orthographic projection of the first surface on the semiconductor substrate. Therefore, according to the solar cell and the photovoltaic module provided by the invention, the conversion efficiency of the solar cell can be improved.

The application discloses a support head cover special for intervention, and relates to the field of medical instruments, which comprises a base for supporting the head of a patient, a side plate vertically fixed on the base, a lifting plate slidingly arranged on the side plate towards the base or away from the base, and a cover plate rotatably arranged on the side of the lifting plate away from the base. The support head cover special for intervention can adapt to various conditions of non-transcervical puncture surgery and transcervical puncture surgery by lifting the lifting plate and rotating the cover plate, thereby improving the universality.