Abstract: A high-nickel ternary core-shell precursor for a lithium battery, a positive electrode material and a preparation method therefor. The chemical structural formula of the precursor is zNi(C4H7N2O2)2—Nix-zM1yM21-x-y(OH)2, wherein M1 and M2 are two of cobalt, aluminum, and manganese. The preparation method comprises: pumping a prepared metal salt solution, a dimethylglyoxime-ammonia water composite solution, and an ammonia water solution into a reaction kettle, maintaining the pH of a reaction system, and controlling the reaction time to obtain a sphere-like precursor inner core with a structural formula of Ni(C4H7N2O2)2; pumping the metal salt solution and the ammonia water solution, stopping pumping the dimethylglyoxime-ammonia water composite solution, pumping a sodium hydroxide solution to obtain a sphere-like core-shell precursor, washing, drying, sieving and deironing the precursor, mixing with a lithium source, and calcining to prepare the positive electrode material.

Abstract: A patrol helmet and method for livestock and poultry farms is described herein. The patrol helmet is wirelessly connected to an online farm management system on a cloud platform. The patrol helmet includes a helmet body, a controller, an augmented reality (AR) display component, an infrared (IR) camera, and a visible light camera. The AR display component is secured at the bottom edge of the helmet body. Both the IR camera and the visible light camera are disposed on the helmet body. The IR camera, the visible light camera, and the AR display component each is electrically connected to the controller. The IR camera and the visible light camera are configured to photograph livestock or poultry in an area in front of a wearer to obtain a temperature and an image of the livestock or the poultry.

Abstract: Disclosed is a self-adaptive precise ventilation system for a livestock and poultry house. The system comprises an air pipe, an adjusting assembly, a camera shooting assembly, air flow test pieces and a controller; the air pipe and the air flow test pieces are all arranged above fence areas, the camera shooting assembly is installed on one side of each of the air flow test pieces, and the adjusting assembly is connected together with the air pipe through connecting ropes; a plurality of air supply outlets are formed in the air pipe, and each air supply outlet is provided with a valve; and the camera shooting assembly monitors the air flow conditions in the livestock and poultry house and the information of in-fence areas, and transmits the them to the controller so as to determine the opening degrees and the orientations of the air supply outlets and realize precise air supply.

Abstract: Disclosed is a self-adaptive precise ventilation system for a livestock and poultry house. The system comprises an air pipe, an adjusting assembly, a camera shooting assembly, air flow test pieces and a controller; the air pipe and the air flow test pieces are all arranged above fence areas, the camera shooting assembly is installed on one side of each of the air flow test pieces, and the adjusting assembly is connected together with the air pipe through connecting ropes; a plurality of air supply outlets are formed in the air pipe, and each air supply outlet is provided with a valve; and the camera shooting assembly monitors the air flow conditions in the livestock and poultry house and the information of in-fence areas, and transmits the them to the controller so as to determine the opening degrees and the orientations of the air supply outlets and realize precise air supply.

Abstract: A patrol helmet and method for livestock and poultry farms is described herein. The patrol helmet is wirelessly connected to an online farm management system on a cloud platform. The patrol helmet includes a helmet body, a controller, an augmented reality (AR) display component, an infrared (IR) camera, and a visible light camera. The AR display component is secured at the bottom edge of the helmet body. Both the IR camera and the visible light camera are disposed on the helmet body. The IR camera, the visible light camera, and the AR display component each is electrically connected to the controller. The IR camera and the visible light camera are configured to photograph livestock or poultry in an area in front of a wearer to obtain a temperature and an image of the livestock or the poultry.