5results about How to "Little interference" patented technology

The utility model discloses a kind of material filling equipment, including conveying pipeline, three-way reversing valve, material bucket, weight sensor and controller;Conveying pipeline includes feed pipe and two discharge pipes;Three-way reversing valve is equipped with one feed inlet and two discharge ports, feed inlet connects feed pipe, two discharge ports are respectively detachably connected with corresponding discharge pipe;Material bucket includes two and is respectively arranged at the side of corresponding discharge pipe and is used to hold the material that flows out from discharge pipe;Weight sensor is arranged below material bucket, for real-time detection material bucket mass, three-way reversing valve is solenoid valve, weight sensor is electrically connected with controller, controller is electrically connected with solenoid valve;Working condition, feed inlet and feed pipe keep communication, one discharge port and corresponding discharge pipe are communicated, another discharge pipe and corresponding discharge port are closed, such design can realize continuous operation, improve work efficiency.

The application discloses a self-interference suppression method based on wideband digital beam forming, which comprises the following steps: S1. After a transmitter performs digital-to-analog conversion on a desired transmission signal through transmission beam forming, the signal is processed through a radio frequency transmitting device and then transmitted to a transmitting antenna array for transmission; S2. A receiver receives the signal from the transmitting end through the receiving antenna array, processes the signal through a radio frequency receiving device, performs analog-to-digital conversion, completes receiving beam forming, and gives a residual interference representation of the receiver; and S3. Coefficients of the transmitting beam forming and the receiving beam forming are designed, the self-interference coupled to the receiving array is suppressed while ensuring normal transmission of the transmitting array and normal reception of the receiving array, and the desired signal is normally demodulated. The application utilizes the symmetry characteristics of the coupled self-interference channel, alternately iteratively optimizes the transmitting and receiving beam forming coefficients, and minimizes the residual interference and noise power coupled to the receiver.

The application discloses a cyclone combustion system of a wing wall furnace boiler, wherein the lower furnace, the main combustion area furnace and the upper furnace all comprise a front wall, a right side wall, a back wall and a left side wall; the front wall, the right side wall, the back wall and the left side wall of the main combustion area furnace are all provided with inclined wing walls between two adjacent sides; each of the four wing walls is provided with a wind distribution chamber; each of the four wind distribution chambers is provided with a burnout air device and two or more layers of cyclone pulverized coal burners from top to bottom; the axes of the burner nozzles of the cyclone pulverized coal burners of the same layer in the four wind distribution chambers are arranged in a diagonal line in pairs; and the cyclone pulverized coal burners of the same layer in the four wind distribution chambers are all connected with the same coal mill; the application can improve the self-stable combustion capacity, the uniformity of the airflow in the furnace and the flame fullness, avoid the flame brushing the wall, realize the good combustion air power flow field organization in the furnace, precisely control the smoke temperature deviation, ensure the safe operation of the large-capacity high-parameter boiler and better meet the high-index requirement of the new generation of coal power technology.

This application provides a control method and an air purifier for an air purifier, relating to the field of air purifier technology. The air purifier includes a purifier body and a first light source. The purifier body has an air inlet and a first chamber, which are in fluid communication. The first light source is located in the first chamber, and the incident direction of the first light source intersects the extension direction of the air inlet. The control method includes the following steps: obtaining the working mode of the air purifier, which includes a purification mode; and turning on the first light source when the air purifier is in purification mode. In this application embodiment, users can intuitively experience the purification effect of the air purifier. Simultaneously, because the first light source is located in the first chamber, when the purifier body is working, the air velocity and direction in the first chamber are less affected by interference or fluctuations compared to the outside of the air purifier, which is conducive to the formation of the Tyndall effect and helps optimize the user experience.

This invention discloses a method for quantifying the spatial heterogeneity of microhabitats in mountainous rivers, comprising the following steps: Step 1: Setting up sampling sections and sampling points; Step 2: Measuring average water depth, average flow velocity, transparency, turbidity, sediment particle size distribution, and water environment indicators at each sampling point; Step 3: Determining key parameters related to hydrology, water environment indicators, and organisms; Step 4: Statistically analyzing the measurement results of key parameters indoors and calculating the microhabitat heterogeneity index of mountainous rivers; Step 5: Verifying the reliability of the calculated results of the spatial heterogeneity index of microhabitats in mountainous rivers. This invention's method for investigating microhabitats in mountainous rivers combines environmental factor screening with actual field measurements, enabling the quantification of the complexity of spatial habitat structure. Specifically, for the three-dimensional benthic habitat investigation method in mountainous rivers, it calculates the spatial heterogeneity of microhabitats by statistically analyzing river flow patterns and sediment particle size, thus evaluating the living space characteristics and quality of organisms in mountainous rivers.