5results about How to "Reduce free space" patented technology

The invention relates to a method for determining at least one free space in a vehicle environment of a vehicle, wherein the method has the following steps: (a) receiving at least two-dimensional contour points (11) of an object (5) in the vehicle environment; (b) assigning the received contour points (11) to a plurality of rows (8) which divide at least one field of view (4) located in the vehicle environment and considered in the scope of the method in rows; (c) for at least a portion of the plurality of rows (8), respectively within a row (8), determining as a minimum contour point (13) such a contour point (11) which has the smallest contour point distance (15) to a reference system (2, 3) of the vehicle (1) of all contour points (11) assigned to the respective row (8) within the row (8); and (d) connecting the previously determined minimum contour points (13) as one free space (6) or a plurality of free spaces (6) within the at least one field of view (4) considered.

The utility model provides a kind of cage type double photoionization source mass spectrometer based on molecular beam sampling, including photoionization unit, photoionization unit includes first casing, vacuum ultraviolet lamp and synchrotron radiation light connecting part;First casing is hollow structure with first inner cavity, photoionization region is formed in first inner cavity;First casing is equipped with the connecting hole being communicated with first inner cavity, the axis of connecting hole passes through photoionization region;Vacuum ultraviolet lamp is arranged in first inner cavity, and vacuum ultraviolet light generated by vacuum ultraviolet lamp can be transmitted to photoionization region;Synchrotron radiation light connecting part is at least partially set in first casing outside, and is connected at connecting hole.It is thus that double photoionization source mass spectrometer can utilize synchrotron radiation light to realize the photoionization of sample to be measured, and when synchrotron radiation light is unavailable, the photoionization of sample to be measured can be realized using the vacuum ultraviolet lamp, to alleviate the problem that cannot meet experimental demand due to synchrotron radiation light machine tense.

The utility model discloses a fixed bed gas producer furnace bottom assembly with an inner filling device, which comprises a furnace bottom shell and an ash tray positioned in the furnace bottom shell, a fixed ring is arranged below the ash tray, the fixed ring is connected with a big gear ring for driving the fixed ring to rotate, and the big gear ring is connected with a small gear ring. The side wall of the furnace bottom shell is provided with an open hole allowing the driving gear to enter and meshed with the large gear ring, and a filling part for reducing entering of high-temperature steam is arranged between the furnace bottom shell and the ash tray. The utility model has the beneficial effects that the filling part is arranged in the unoccupied space in the furnace bottom assembly, so that the unoccupied space is reduced, the waste of steam is further reduced, and the amount of waste water needing to be treated in the gas making process is further reduced; moreover, when sudden power failure occurs, serious accidents can be avoided.

The utility model discloses a lead frame for multiple chips, which belongs to the field of lead frames and comprises a frame body, a plurality of chip mounting units are arranged in the frame body, and transverse rectangular partition grooves and longitudinal circular partition grooves are arranged in the middle of the frame body. Transverse side ribs are arranged between every two adjacent columns of chip installation units arranged transversely, longitudinal side ribs are arranged between every two adjacent columns of chip installation units arranged longitudinally, each chip installation unit comprises three independent base islands arranged in the center, the three base islands are each independently provided with a pin, and the pins are arranged in the three base islands. Positioning holes are formed in the top and the bottom of the frame body. The unoccupied area of one chip mounting unit is reduced, so that the area of the base island is utilized to the maximum extent, the width is reduced, twenty rows and four columns of chip mounting units can be produced by one frame body, the production efficiency is improved, and the production cost is reduced.