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The utility model discloses a reducer with the function of swing of output shaft, including output shaft, swing guide piece, swing block, first drive motor, box, vertical shaft, second drive motor, planetary gear, planetary gear axle, upper internal gear disc, lower internal gear disc, worm and gear drive group, bevel gear set and gear drive group, the output of first drive motor is connected with vertical shaft lower part through worm and gear drive group and bevel gear set, and the upper portion of vertical shaft is connected with one end of output shaft through bevel gear set, and output shaft rotatory installation is in swing block, and swing block sliding installation is on swing guide piece, the both sides of swing block rotatory installation has planetary gear axle, and the upper end of planetary gear axle is connected with planetary gear respectively, and the planetary gear of two planetary gear axle upper ends is engaged with upper internal gear disc and is connected with the output of second drive motor through gear drive group, and the planetary gear of two planetary gear axle lower ends is engaged with lower internal gear disc. Output shaft has the dual function of rotation and swing, and improves the steering flexibility.

The application discloses a deep fracture visual photoacoustic magnetic cooperative in-situ measurement device, which comprises a measurement robot placed in a borehole, a cable lowering device placed near a borehole mouth and an upper computer placed outside the borehole. The measurement robot can realize in-situ measurement of fracture networks at different positions in the borehole and has the function of autonomous travel. The cable lowering device mainly realizes depth position sensing of the measurement robot through a depth editor and realizes data communication between the measurement robot and the upper computer. The application further discloses a deep fracture visual photoacoustic magnetic cooperative in-situ measurement method. The application can realize feature area sensing search, autonomous cruise and rapid acquisition of multi-source data, and in combination with a subsequent data processing method, high-precision in-situ measurement and visualization of deep fracture networks can be realized.

This invention discloses a network security level protection risk analysis system, comprising a system connection unit, a pre-assessment unit, a formal assessment unit, and a result verification unit. The system connection unit is used to establish a connection with the system under test. The pre-assessment unit is used to pre-assess the system under test before the formal assessment and to obtain rectification points. The formal assessment unit is used to submit the system under test and formally conduct the level protection assessment. The result verification unit is used to compare and analyze the results of the pre-assessment unit and the formal assessment unit. The pre-assessment unit includes an information filing module, a self-assessment module, and a physical security assessment module. The network security level protection risk analysis system disclosed in this invention optimizes the efficiency of the formal assessment, reduces the cost of repeated submissions, and is easy to operate, can be implemented on the same computer, and also reduces the frequency of data turnover of the system under test.