Considering the inertial measurement unit (IMU) faults risk of an unmanned aerial vehicle (UAV), this paper provides an analysis of the error overboundings of position estimation in a tightly coupled IMU/global navigation satellite system (GNSS) integrated architecture under the IMU fault conditions using an error-state EKF-based approach and provides a comparison to a recently published EKF-based full state method. Simulation results show that both the error overboundings of the error-state and full-state EKFs can fit the state error against the IMU faults, but the error-state EKF is more suitable for UAV navigation system integrity assurance due to its higher calculation eciency. This study will be extended to the integrity monitoring of multisensor systems.

Aiming at the project of Jiangsu Zhongwu 500 kV substation, the finite element analysis of scaffolding engineering is carried out and the scaffolding construction monitoring platform based on BIM technology is established by using BIM technology to realize visual monitoring of scaffolding and the field monitoring data is processed and displayed in the form of chart, which provides the basis for scaffolding construction safety.

To clearly highlight the differences between the error overboundings of error-state EKFs and full-state EKFs

With the grand goals of “carbon peaking” and “carbon neutrality” being put forward, establishing an efficient comprehensive energy system and promoting the allocation and consumption of clean energy have become the challenges faced by many industrial parks in energy conservation and carbon reduction. Because the comprehensive energy park has various energy forms such as cold, heat, electricity, and gas, the energy structure is complex, and the renewable energy and load are highly volatile. Aiming at this problem, this paper builds a low-carbon operation model of comprehensive energy parks based on dynamic carbon emission factors, which can significantly improve the accuracy of the total carbon emission consumption in the park, and provide strong support for guiding the operation of equipment in the park and the charging and discharging of energy storage equipment.