No abstract

In order to respond to the new situation and challenges of global digitalization economy, promote the development of digital economy and practice the great ideal of common prosperity of socialism, the Party's twenty major reports require taking digital economy as the engine to drive rural economic development, realize the transformation from traditional agricultural economy to digital rural economy, and comprehensively deepen rural revitalization in the new era. With the information network as the carrier and commercial trade as the core, the digital economy integrates social natural resources as a whole and promotes the innovative reform of the social economy. Integrating digital economy with rural social development, guiding rural areas to speed up the construction of digital infrastructure, promoting the establishment and improvement of modern "digital countryside", stimulating the development and transformation of rural economy, and exploring new roads for rural revitalization. This paper analyzes and studies the economic and humanistic aspects of the integration of digital economy and rural society. First, digital economy promotes the development of rural economy, reduces the economic gap between urban and rural areas, and promotes the development of social common prosperity. Second, the development of digital culture industry inherits excellent rural traditional culture and opens up a new mode of traditional culture development

No abstract

Small angle measuring tools with pendulum mechanical structure has two major challenges. One is that it takes long time to wait for the pendulum structure to completely stop swinging, and the other is that the instrument has poor anti-interference ability. Inspired by the two challenges, this paper proposes a dynamical measuring method to achieve a fast and accurate measurement synchronously. Specially, a damped oscillation modeling of the pendulum with nonlinear least squares fitting is presented to estimate the model parameters which includes the angle of the oblique plane. Besides, it is proved that the minimum sample size required for data fitting is decided by one oscillation period, which guarantees the shortest measuring time within high precision. Moreover, this paper also presents the precision criterion of fitting parameters to judge whether the fitting results meet the requirements. This proposed method is applied to a developed small angle measuring tool. The error of the proposed measurement system is better than 3.25 '' and the uncertainty is 4.8 '' within the measurement angle of 2000 '', and the settling time is 0.45 s. The experimental results confirm that this method can not only greatly shorten the measuring time, but also enhance the anti-interference ability and realize high-precision measurement.