33results about How to "Improve Simulation Confidence" patented technology

The invention provides a satellite flight control closed loop simulation system based on a component simulator, which is applied to a system comprising a dynamics simulation server, a sensor simulator, an actuator simulator and a space-borne computer, wherein the formula of data output by the sensor simulator to the space-borne computer is the same as that of data output by a practical sensor to the space-borne computer, and the format of data received by the actuator simulator from the space-borne computer, i.e., the format of data input by an actuator is the same as that of data input by a practical actuator, so that the simulation reliability of the satellite flight control closed loop simulation system can be enhanced effectively; the component simulator is adopted instead of a real physical device, so that the simulation system has the advantages of low cost and low complexity; and meanwhile, the simulation system has the characteristics of high generality, high flexibility and high automatic degree, so that the research period of a satellite can be shortened effectively, and the research cost of the satellite is reduced.

The invention discloses a method and a system for adding a haze effect to driving scene video. The method is characterized by comprising the steps of acquiring haze-free clean driving scene video; calculating atmosphere radiance value information and a depth information matrix corresponding to each frame image in the driving scene video according to a dark channel prior based single-image defogging algorithm; acquiring a haze image model equation according to an atmospheric scattering model, and generating each frame image into a corresponding image with the haze effect according to the haze image model equation, the depth information matrix, the atmosphere radiance value information and preset haze concentration parameters; and synthesizing all of the images with the haze effect into the driving scene video with the haze effect. The method and the system disclosed by the invention realize quick addition of the haze effect to the driving scene video while ensuring good simulation effects, and is high in haze simulation confidence, fast in addition and easy to implement.

The invention discloses an emulation verification platform and an implement method of a micro-satellite team formation system. The platform comprises an emulation and verification main control platform, an emulation primary component, a plurality of emulation secondary components and a plurality of satellite controllers corresponding to the plurality of emulation secondary components. The emulation primary component and the emulation secondary components are communicated with the emulation and confirmation main control platform through an Ethernet network. The emulation main component is communicated with the satellite controllers through wireless fidelity (WiFi). The emulation secondary components and the satellite controllers are connected through recommend standard 232 (RS232) joints. According to the implement method, emulation procedure is started through the emulation and confirmation main control platform so that a real-time emulation environment of a principal and subordinate construction is established; the emulation primary component starts team formation control and sends a control order to the controllers; a control signal is sent to the emulation secondary components through serial ports after emulating calculation by the controllers; a satellite dynamical model and an environmental model are emulated by the emulation secondary components so that state information of a satellite is offered; and emulation data is sent to the emulation and confirmation main control platform for unified management and analysis. According to the emulation verification platform and the implement method of the micro-satellite team formation system, a complete and complex emulation verification function is offered to satellite team formation flight.