Abstract: A method for conveying and dropping seedlings based on a device for conveying and positioning a seedling tray of an automatic transplanter is provided. The device for conveying and positioning the seedling tray of the automatic transplanter includes a platform for conveying the seedling tray, a first sensor, a second sensor, a plurality of push rods, and a control system. The platform is configured for conveying the seedling tray to be below seedling picking claws. The push rods are evenly distributed on the platform. The seedling tray is placed between adjacent two of the push rods. The first sensor is mounted close to the seedling picking claws and configured for identifying the seedling tray. The second sensor is mounted on a rack of the platform for conveying the seedling tray and configured for identifying the push rods. The control system controls the platform for conveying the seedling tray.

Abstract: A box-type dust collector includes a suction unit that includes a brushless motor and an air blowing fan, a battery mount portion, to which a battery pack that serves as a power source is mountable, a suction port that suctions outside air through rotation of the air blowing fan, and a filter that separates dust from the outside air which is suctioned from the suction port. The bottom surface of a tank serves as a surface for stationary placement. A handle for carriage is provided at a position directly over the center of gravity of the entire box-type dust collector with the battery pack mounted to the battery mount portion. Coupling portions to be coupled to both ends of a shoulder belt are provided at front and rear positions that are point-symmetric about the center of gravity as viewed in plan.

Abstract: This application discloses an event recognition method, including: obtaining, by a terminal device, a target sentence used for recognizing a type of a target event; processing, by the terminal device, a target sentence based on an event recognition model, to obtain the type of the target event, the event recognition model being used for determining the type of the target event by using a trigger word in the target sentence and at least one context word of the trigger word, the trigger word being used for indicating candidate types of the target event, and the candidate types including the type of the target event; and outputting, by the terminal device, the type of the target event. According to the technical solutions of this application, an event recognition process is performed by using a trigger word and a context word of the trigger word.

Abstract: A box-type dust collector includes a suction unit that includes a brushless motor and an air blowing fan, a battery mount portion, to which a battery pack that serves as a power source is mountable, a suction port that suctions outside air through rotation of the air blowing fan, and a filter that separates dust from the outside air which is suctioned from the suction port. The bottom surface of a tank serves as a surface for stationary placement. A handle for carriage is provided at a position directly over the center of gravity of the entire box-type dust collector with the battery pack mounted to the battery mount portion. Coupling portions to be coupled to both ends of a shoulder belt are provided at front and rear positions that are point-symmetric about the center of gravity as viewed in plan.

Abstract: An electronic lottery card transferred via the Internet has two functions, including e-card and lottery, and is presentable. A method of transferring the electronic lottery card through the Internet includes: (1) providing an electronic lottery card server; (2) allowing a user to log into the server; (3) displaying e-cards and lotteries to be selected; (4) allowing the user to choose e-card/e-cards and lottery/lotteries, to input information about the receiver and to confirm; (5) automatically encrypting the information confirmed, storing the information in a database, sending the electronic lottery card to the receiver, and notifying the receiver; and (6) upon the confirmation of the receiver that he/she has received the electronic lottery card, inputting the information into the database.