3results about How to "Start in time" patented technology

This application discloses a positioning method, system, device, and medium for long straight corridors, belonging to the field of robot positioning technology. The method involves: determining when the robot enters a long straight corridor area, controlling the robot's direction to be consistent with the corridor's extension direction, and collecting first pose data, first mileage data, and attitude yaw angle; during the robot's movement, collecting second pose data and second mileage data in real time; constructing a constraint line based on the corridor slope determined by the attitude yaw angle and the second pose data; calculating the movement distance using the first and second mileage data, and constructing a constraint circle with the first pose's corresponding coordinates as the center and the movement distance as the radius; solving the equations of the constraint line and constraint circle simultaneously, and determining the final positioning pose based on the results. Therefore, by implementing this application, the missing longitudinal positioning constraints in the context of long straight corridor feature degradation can be supplemented, solving the problem of unreliable robot positioning.

The utility model relates to fire sprinkler technical field discloses a fire sprinkler device with prevent blocking structure, including mounting block, the mounting block inner wall is fixedly connected with filter plate, the mounting block top is fixedly connected with connecting block, the connecting block top is installed with connecting nut no.

The application discloses a kind of offshore box transformer internal environment control system and method, it is related to offshore electrical equipment control technical field, wherein, the system includes box transformer body, partition fan group, shell fan, sensing unit and control unit.Box transformer body is divided into high-pressure chamber and low-pressure chamber by partition, partition fan group is set to partition, shell fan is set to the shell of high-pressure chamber.Control unit is electrically connected with partition fan group, shell fan, sensing unit respectively;Control unit is used to receive the detection data of sensing unit, and according to detection data control partition fan group and shell fan start-stop.This scheme can complete temperature regulation inside box transformer, greatly reduce the invasion of external high salt mist air, while maintaining high protection level, realize efficient heat dissipation, and can realize the timely start of partition fan and shell fan when leakage, quickly discharge low-pressure chamber SF6 gas, eliminate security risks.