摘要:
The present invention relates to a crane for handling a load hanging on a load cable, comprising a slewing gear for rotating the crane, a luffing gear for luffing up the boom, and a hoisting gear for lowering or lifting the load hanging on the load cable, with a control unit for calculating the actuation of slewing gear, luffing gear and/or hoisting gear, wherein the calculation of the actuation commands for actuating slewing gear, luffing gear and/or hoisting gear is effected on the basis of a desired movement of the load indicated in Cartesian coordinates.
摘要:
The present invention relates to a crane control for the control of a hoisting gear of a crane which takes account of oscillation dynamics based on the elasticity of the hoist rope on the control of the hoisting gear and reduces them by a suitable control of the hoisting gear.
摘要:
In a method for gauging surfaces (7″), in which a frequency-modulated laser beam is generated, the laser beam is emitted onto the surface as measuring radiation (MS), the measuring radiation (MS) backscattered from the surface (7″) is received and the distance between a reference point and the surface (7″) is measured interferometrically, wherein the measuring radiation (MS) is emitted and received while the surface to be gauged is being scanned, and a measuring arm and a reference interferometer arm with a partially common beam path are used, deviations from the essentially perpendicular impingement of the measuring radiation (MS) on the surface (7″) are taken into account algorithmically during distance measurement and/or are avoided or reduced during scanning by controlling the emission of the measuring radiation (MS).
摘要:
In order to detect the exchange of a module, identified by a serial number, in a microprocessor system,a code number, which is obtained from the serial number by using an encryption method, as well as information required for calculating the serial number from the code number, are stored in the microprocessor system;the code number is read and an unencrypted serial number is calculated from the code number with the aid of the information; andthe decrypted serial number thus obtained is compared to the serial number of the module and the module is detected as exchanged if its serial number does not match the decrypted serial number.
摘要:
Disclosed is a geodetic target object comprising at least one reflector surface, a receive channel with a detector (18) for receiving electromagnetic radiation (ES) transmitted by a measuring unit (2″), and a transmit channel with a radiation source (13′). The associated transmission port and/or reception port is/are integrated into the reflector surface or is/are embodied so as to adjoin the reflector surface such that radiation (RS) that is modulated for transmitting data can be transmitted in the direction of the measuring unit (2″) within the cross section (5″) of the radiation (ES) generated by the measuring unit (2″).
摘要:
The present invention represents a procedure for compensating the heave movement of offshore cranes. The dynamic model of the compensation actuator (hydraulically operated winch) and the load hanging on a rope are derived. Based on this model, a path-tracking control unit is developed. To compensate the movement of the ship/watercraft caused by waves, the heave movement is defined as a time-varying disturbance and is analyzed with respect to uncoupling conditions. With a model expansion, these conditions are satisfied, and an inversion-based uncoupling control law is formulated. To stabilize the system, an observer is used for reconstructing the unknown state by means of a force measurement. Furthermore, the compensation efficiency can be improved by predicting the heave movement. There is proposed a prediction method in which no ship/watercraft models or properties are required. The simulation and measurement results validate the heave compensation method.
摘要:
A method for enhancing the functionality of series software of a control unit, in particular for a motor vehicle, having the steps of providing a control unit having an interface to which an external hardware device may be connected, having a non-volatile series software memory area in which the series software is stored, and having a volatile upload memory area, connecting an external hardware device, in which upload software is stored, to the interface loading the upload software from the external hardware device into the volatile upload memory area of the control unit, and executing the upload software in the upload memory area, the execution of the upload software enhancing the functionality of the series software by a diagnostic and/or test function.
摘要:
The invention concerns a crane or excavator for traversing a load hanging from a load cable, which is movable in three spatial directions. The crane or excavator has a computer-controlled regulation for the damping of load swings, which contains a path planning module, a centripetal force compensation unit and at least one shaft regulator for the rotating gear, one shaft regulator for the luffing gear and one shaft regulator for the lifting gear.
摘要:
An optically detectable, floatable arsenic- and antimony-free, glazable lithium-aluminosilicate glass that can be prestressed and the glass ceramic converted therefrom are described. The glass or the glass ceramic has a composition (in % by weight based on oxide) of essentially SiO2 55-69, Al2O3 19-25, Li2O 3.2-5, Na2O 0-1.5, K2O 0-1.5, MgO 0-2.2, CaO 0-2.0, SrO 0-2.0, BaO 0-2.5, ZnO 0-
摘要翻译:描述了一种光学上可检测的,可漂浮的无砷和无锑,可预应力的玻璃化铝 - 铝硅酸盐玻璃以及由其转化的玻璃陶瓷。 玻璃或玻璃陶瓷具有基本上为SiO 2 55-69,Al 2 O 3 19-25,Li 2 O 3.2-5,Na 2 O 0-1.5,K 2 O 0-1.5,MgO 0-2.2, CaO 0-2.0,SrO 0-2.0,BaO 0-2.5,ZnO 0- <1.5,TiO 2 1-3,ZrO 2 1-2.5,0.1 <1,SigmaTiO 2 + ZrO 2 + SnO 2 2.5-5,P 2 O 5 O-3, Nd2O3 0.01-0.6,CoO 0-0.005,F 0-1,B2O3 0-2。
摘要:
A radiator for a motor vehicle has a block formed from several parallel tubes, through which flows a coolant, there being provided tubes with at least two different depths. Two or more spaced-apart tubes have a depth greater than a depth of the tubes lying in between and are configured as support tubes. In this way, fatigue strength problems of the radiator are avoided.