To mitigate the challenges posed by the confined spatial environment of greenhouses and various obstacles that frequently cause non-line-of-sight (NLOS) communication issues in ultra-wideband (UWB) localization systems, leading to localization difficulties and low accuracy, we propose a real-time greenhouse localization system that recognizes UWB ranging values prior to correction. First, the initial ranging value is obtained through double-sided two-way ranging (DS-TWR). Subsequently, a communication state identifier is designed based on the residual distribution of ranging values across two UWB communication modes. A correction model is then established by analyzing the causes of ranging value deviations. Finally, the NLOS localization deviation is corrected using an improved unscented Kalman filter (IUKF) algorithm. Experimental results in the greenhouse environment demonstrate that the proposed algorithm enhances positioning accuracy by 68% compared to the uncorrected localization method, offering a valuable reference for localization services in greenhouse settings.

Existing aerospace engineering systems are characterized by their complexity, gigantic size, high risk, openness, and tight coupling of technology and management, all of which can be considered as aerospace complex giant system engineering. To ensure the completion of project development, technological breakthroughs,and scientific problem-solving, it is necessary to adapt to the characteristics of aerospace complex giant systems and build a suitable management system. Based on the management practices of the Long March V development,a complex aerospace giant system model is constructed, and the definition of aerospace ecology is proposed. A management system model for a complex aerospace giant system project is developed, the implication of its four-layer management system is explained, and the dynamic characteristics of "management" are analyzed. It is proposed that delicacy management of the process is crucial to the construction and implementation of the management system. It has the advantage of enriching aerospace management theory and improving the management capabilities of major aerospace missions.