3results about How to "No misuse" patented technology

This utility model belongs to the field of controller technology, and particularly relates to a dual-knob control device, comprising: a base, the base including a lower base and an upper base disposed on the lower base; a first knob assembly disposed on the upper base; a second knob assembly disposed on the upper base, the second knob assembly and the first knob assembly being arranged vertically; and a screen assembly disposed on the upper base. When the user operates the first knob assembly and the second knob assembly, because the second knob assembly and the first knob assembly are arranged vertically, the user can rotate the first knob assembly and the second knob assembly by hand, making the operation very simple and quick. The screen assembly is not on the same plane as the rotation surfaces of the first knob assembly and the second knob assembly, so the screen assembly will not be accidentally operated when operating the first knob assembly and the second knob assembly, thus avoiding unnecessary trouble.

The embodiment of the invention discloses a GNSS (Global Navigation Satellite System) chip sealing FLASH exception protection method and a file system, and the method comprises the following steps: a file writing step: judging whether a to-be-written file exists, if not, adding a corresponding CRC32 field in file header information of the to-be-written file, and then writing the to-be-written file into a FLASH; if the file header information of the FLASH needs to be written, reading the file existing in the FLASH, carrying out CRC32 verification on the file header information of the read file except the CRC32 field, if the verification is passed, updating the file header information of the read file and the corresponding CRC32 field according to the file data needing to be written, and finally writing the updated file header information and the file data needing to be written into the FLASH; if the verification is not passed, directly returning an error; and a file reading step: reading the target file in the FLASH. According to the invention, after the FLASH generates three states, misoperation is not generated, and a firmware area of the FLASH is not operated, so that a GNSS chip is not enabled to run, and a positioning result is not output.

The utility model discloses a nail holder which comprises a handle, a core shaft, a sleeve and a locking assembly and is characterized in that one end of the core shaft is in driving connection with the handle, the other end of the core shaft is used for clamping a part to be held, the sleeve is sleeved outside the core shaft in an axial sliding and matching mode, and the locking assembly is used for locking the sleeve. The mandrel comprises a body connected with the handle and a fixing portion used for fixing the to-be-held component, one end of the fixing portion is fixedly connected with the body, a plurality of notches are formed in the end, away from the handle, of the mandrel in the radial direction, and the notches extend in the axial direction and cut the fixing portion into a plurality of elastic pieces. The locking assembly is arranged between the sleeve and the core shaft, so that when the sleeve axially moves relative to the core shaft, the fixing part can lock or disassemble the to-be-held component. The nail holder disclosed by the utility model can be used for clamping bone nails with different sizes.