53results about How to "Meet the needs of simulation" patented technology

The invention relates to the field of logic verification development and discloses a system for simulating an Ieee1588 module in an OTN (Optical Transport Network). The invention also discloses a method for simulating the Ieee1588 module in the OTN (Optical Transport Network). The method comprises the steps that S1, an excitation generation module generates Ethernet frames and ptp frames; S2, the ptp frames are mixed with the Ethernet frames, thereby forming mixed Ethernet frames; S3, a simulation system access module captures the mixed Ethernet frames and generates a drive signal for driving DUT, and the simulation system access module captures the Ethernet frames and the ptp frames generated by the excitation generation module and sends the Ethernet frames and the ptp frames to scoring boards; S4, a simulation system output module monitors and obtains the mixed Ethernet frames output by the DUT; S5, the mixed Ethernet frames output by the DUT are separated, thereby obtaining the Ethernet frames and the ptp frames; and S6, in the scoring boards, the separated Ethernet frames are compared with the Ethernet frames generated by the excitation generation module, and the separated ptp frames are compared with the ptp frames generated by the excitation generation module. The system and the method are high in multiplexing.

The invention discloses a two-dimensional green water experimentation device. The two-dimensional green water experimentation device comprises a buoyancy tank, a trolley system, a measuring system and a substrate, and the trolley system is mainly composed of a pulley, a slide block, a linear lead rail, an optical axis, a fish eye joint and a ball sleeve; the measuring system is composed of a computer, a data gatherer, a constant-voltage direct current power supply, a horizontal displacement sensor, a vertical displacement sensor and an attitude sensor, wherein the horizontal displacement sensor is fixed on the substrate through a slot, the vertical displacement sensor is fixed on the pulley through a rib plate, and the attitude sensor is fixed on the buoyancy tank; the substrate is composed of a substrate bottom plate and a slot. The wave interacts with the buoyancy tank to enable the buoyancy tank to move, the motion is transmitted to the trolley system through the optical axis, and the displacement sensor and attitude sensor finish measuring. The two-dimensional green water experimentation device is simple in structure, convenient to operate, stable in movement and suitable for the two-dimensional green water experiment research.

The invention discloses a novel linear electric loading system. The novel linear electric loading system comprises a base plate, base plate bosses, bumper block installing tables, bumper blocks, rubber blocks, guide rails, a slide platform, a connecting block, a magnetic railing ruler, drag chain installing angle iron, a force sensor, drag chains, a linear motor, a threaded connecting rod, a linear steering engine, a supporting plate and fixing screws. According to the novel linear electric loading system, aluminum alloy platforms are adopted in the linear motor, the guide rails and the like, and therefore dynamic performance of the system can be improved beneficially. Compared with a traditional loading structure that a servo motor is installed with a ball screw, the novel linear electric loading system has the advantages that the slide platform is adopted, a loading motor and the steering engine are connected through threaded rods, and the shortcomings that the traditional loading structure is long in reversed time and poor in dynamic performance are effectively overcome. Compared with a traditional connecting method using lug rings, the method of connecting the loading motor and the electric steering engine through the threaded rods avoids connecting gaps and improves loading accuracy. When the loading system breaks down, the phenomenon of rotation blocking of the steering engine can be prevented, the steering engine can not be damaged, and the effect of safety protection is achieved.

The invention relates to a material and a method for manufacturing a carbonate cave oil reservoir physical model. The material is characterized by comprising a manufacturing main body material for cracks and caves in the physical model and a physical model skeleton material, wherein the manufacturing main body material for cracks and caves in the physical model is selected from wood's alloy and / or paraffin. The method comprises the following steps of: 1) manufacturing models of caves and cracks of different sizes and shapes by using the wood's alloy and / or the paraffin; and 2) after the models are formed, displacing the wood's alloy and / or the paraffin at the temperature of higher than 85 DEG C to obtain a crack cave with spatial structure. The manufactured physical model accords with the characteristics of carbonate cave oil reservoir and supplies reliable guarantee for developing various physical simulation experiments.