4results about How to "Avoid accidental loss" patented technology

This utility model relates to the field of photovoltaic manufacturing technology, specifically to a single-crystal visible doping device, including a loading cavity for receiving a material scoop. An observation window for observing the material scoop is installed at the top of the loading cavity. The observation window is located at the top of the material scoop receiving cavity, and the top of the loading cavity also has a mounting component for easy installation and removal of the observation window. This utility model, by opening an observation window at one end of the loading cavity, allows for confirmation during the loading stage whether the alloy is accurately loaded into the scoop and whether any spillage has occurred. During the purification process, it directly monitors the dynamic changes of the antimony master alloy powder during vacuuming / gas filling, avoiding accidental losses due to airflow disturbances. The window's position allows the line of sight to be directly facing the scoop opening, enabling inspection of any residual alloy inside the scoop without the need for a push-out device. By disassembling the guide block, multiple push-out springs simultaneously push out the observation window, reducing the difficulty of disassembling and replacing the observation window.

The invention discloses a redundant message processing method and device without repeatedly occupying a serial number. The method comprises the following steps: S1, analyzing a message received by equipment; s2, judging whether the message carries a redundant frame or not, if yes, executing the step S4, and if not, executing the step S3; s3, a truncation method is used for determining a generated serial number, a redundant frame is added into the received message, the value of a serial number field in the redundant frame is the value of the generated serial number, and then the step S5 is executed; s4, judging whether the message needs to be copied to the redundant path, if so, executing the step S5, otherwise, directly forwarding the message according to the original path; and S5, copying the message to the redundant path. In the method, the redundant frames are not repeatedly added to the message which originally carries the redundant frames, and the serial number is not occupied; the messages carrying the redundant frames are selectively copied to all the redundant paths during frame copying; and when the serial number of the redundant frame is determined to be added, the serial number can be overturned by adopting a truncation method without logical judgment.

This utility model discloses a projection device based on vision design, relating to the technical field of projection devices. The projection device based on vision design has a rotating sleeve fixedly connected to the upper surface of a base plate. An outer cylinder is rotatably connected inside the rotating sleeve. An inner column is provided inside the outer cylinder, with the upper end of the inner column extending outwards from the outer cylinder. The upper end of the outer cylinder also extends outwards from the rotating sleeve. Two connecting sleeves are provided on the outer surface of the outer cylinder. A sliding groove communicating with the interior of the outer cylinder is formed on the outer surface of the outer cylinder. The connecting sleeves extend into the interior of the outer cylinder through the sliding groove and are fixedly connected to the inner column. An installation ring is fitted onto the outer surface of the outer cylinder, and a threaded rod is rotatably connected to the upper surface of the installation ring. Vertical lifting and lowering can be achieved through the cooperation of the connecting sleeves and the threaded rod. Furthermore, during lifting and lowering, there is no need to manually lift the inner column, reducing physical exertion and improving operational convenience. The height adjustment is also more precise compared to traditional structures.