Abstract.Sensor network integrates sensor technology, embedded computing technology, distributed information processing technology and wireless communication technology, and can cooperate in field monitoring, sensing, collecting and processing the information of monitoring objects.wireless sensor network technology has the advantages of self-organization, rapid deployment, high fault tolerance and concealment. At present, sensor technology is frequently used in various fields, but there are many kinds of sensors. It is inefficient to combine the information measured by each sensor to obtain the … Read more →

Abstract.In order to study the mining pressure law of the large dip angle working face, prevent the topping accident of the working face, and cause the roof accident, through the observation of the mining pressure of the working face of Xiaogou coal mine, the law of mine pressure appearance and dynamic effect of the large dip angle working face are obtained. The results show that the initial support force of the working face support is not less than 24 MPa, the lower part of the working face is larger, and the falling rock has not been effectively filled in the middle and lower part of the working … Read more →

Abstract.Compared with the traditional methods of using industrial linkages to analyze the industrial chain, this paper introduces the theories of economic distance and graph theory to analyze the information industry chain. Industrial linkages reflects the size of economic and technological connection, and economic distance measures the distance between industries. The minimum spanning tree in graph theory measures the position of each industry in the information industry chain. There are complex indirect dependence and direct dependence in the industrial chain of electronic product manufacturing. The … Read more →

Abstract.Aiming at the problem of predicting the remaining life of rolling bearings, a method for predicting the remaining life of bearings based on the arithmetic optimization algorithm (AOA) and the long-short-term memory network (LSTM) fusion algorithm is proposed. First, use the random forest algorithm to analyze the importance of the extracted time-domain and frequency-domain feature indicators, and build a degradation feature decision table; then, use the AOA optimization algorithm to optimize the hyperparameters in the LSTM, and select the optimal hyperparameters to establish predictions model; … Read more →

Abstract.In this paper, an observed-based sliding mode control with event-triggered mechanism for the carbon fiber diagonal loom tension networked control is studied. According to the characteristics of the loom, the networked control is introduced into the loom tension control, the influence of the introduction of network factors is fully considered, and a tension model containing network factors is finally established. An observed-based sliding mode control is adopted. Meanwhile, to further reduce the amount of data transmission and improve the service life of the equipment, an event-triggered … Read more →