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In order to shorten the response times of aperiodic tasks in mixed task sets in real-time systems, this paper proposes an adaptive total bandwidth server (ATBS) algorithm based on aperiodic tasks with varying executing times. This method of reducing response times of aperiodic execution by using predictive execution times instead of worst-case execution times for deadline calculations in the total...
Outlier-tolerance is the important part to the safety studies of technology process, and it is also one of the key technologies that can guarantee the operation safety of the dynamic system. Firstly, how to realize the safe and reliable processing of fault and outliers is discussed. This paper analyzes the significant differences that exist in the three kinds fault tolerance research branches which...
Train cruising movement simulation module is an important part of high-speed train moving simulation system. According to the actual cruising movement characteristics of high-speed train, it is very important to design high-speed train cruising movement simulation algorithm to improve the calculation accuracy of train moving simulation system. Based on the conditions and the characteristics of high-speed...
The generation of robot task planning is a challenging issue in uncertain and dynamic real world. Semantic knowledge can be used to support the task planning of robots as a source of implied knowledge. At present, many literatures elaborate semantic networks, which integrate spatial information and semantic information, and use semantic knowledge to carry out robot task planning. Aiming at the demand...
In order to improve the stability of SPMIG welding process, this paper fully utilized the characteristics that sine wave was the low-frequency modulation signal as well as the sine wave function was derivable for any order to make the energy change dE/dt smooth, thus improving the welding stability and welding joint performance. The tests for the SPMIG and DPMIG welding of AA6061 aluminium alloy were...
The results of the thickness measurement is interfered by the effect of the lift-off in the pulsed eddy current detection. The traditional single coil measurement is inconvenient for the thickness measurement due to the influence of the lift. A non-contact measuring device based on double coil differential circuit is designed by theoretical analysis. It is proved that the measuring device can eliminate...
ESN load forecasting model has high stability, and is able to learn fast and not easy to fall into local optimum, compared with standard recurrent neural network. In the process of constructing the typical ESN model, the choice of parameters is always empirical or random. The forecasting performance of ESN was analyzed on the basis of its key parameters. While the dynamic reserve pool has black box...
The mass monitoring data collected by the on-line monitoring of the substation is stored in the Hadoop Distributed File System (HDFS), and the index table structure of the online monitoring data is optimized and stored in the distributed structured database (HBase) Quick access to monitoring data. Based on Hadoop 's online monitoring data processing experiment platform, a fast fault identification...
To solve the traffic congestion problem in the highway mainlines and to improve ramp metering effect, we propose a road density control approach based on the traffic model and compound control. This compound control is a combination of proportional-integral-derivative (PID) controller and credit assignment cerebellar model articulation controller (CACMAC). Firstly, a cell transmission model (CTM)...
In order to scientifically and effectively allocate university education resources and improve the efficiency of educational resources, we need to evaluate the efficiency of university education. Delphi, AHP and DEA organically combine to establish a combination of university efficiency evaluation model. The model can not only reflect the preferences of decision makers, but also objectively evaluate...
The static wireless charging of electric vehicle has many disadvantages, such as long charging time, short mileage, and bulky battery pack. In order to study the primary winding of the parallel electric vehicle dynamic wireless charging, a double primary, single receiving winding wireless power transmission system model, it is found that the mutual inductance of the system will have a significant...
With the development of Internet technology, Automatic Train Supervision (ATS) simulation system with traditional C/S architecture is more and more inconvenience for its incompatibility with internet and the high cost of maintenance and development. It is more practical to use B/S structure. However, computer interlocking(CI) system with ATC system using UDP protocol is not compatible with remote...
With the extensive application of industrial sensor networks in the embedded field, the interconnection communication between the embedded node is proposed for the cross-LAN/WAN communication needs. Traditional communication schemes using proprietary protocols and sink nodes do not fully meet the interoperability needs. Web Services technology has the characteristics of openness, platform interoperability,...
In order to improve the management intelligent level and the level of information sharing for higher law college instructors, and improve the efficiency of management of higher law college counselors work, and promote the sharing of college counselors and educational resources and scheduling information, Higher Law College Counselors work management system is developed and designed. The system adopts...
There are many function modules in the numerical control (NC) system, the system needs to communicate with each other through the data interaction among modules, to coordinate the work between modules and complete the control task. In this paper, the main function module structure of NC system is constructed based on RCS method. The communication between the NC system modules is realized by using...
At present, more than 90% of the electronic blood-pressure meter on the market are using the oscillation method for blood pressure measurement. The key step of the oscillatory blood pressure measurement is to pretreat the original signal of the oscillating pulse wave. In this paper, the algorithm of sliding mean filtering and mathematical morphology is proposed to eliminate the burr and baseline drift,...
Map matching, as one of the key steps, is widely used in navigation, estimation of traffic flow, path planning, etc. With the emergency of large traffic track data, the demand for matching speed is becoming higher and higher. This paper describes a method of map matching based on grid index, which is used to quickly get the closest K candidate sections to improve the speed of map matching. When establishing...
The landscape plant as spatial element used in the construction of parametric configuration system is a fresh concept and technical innovation. This System is aimed to help designers without botany knowledge to finish some simple plants arrangements. Through the construction of plant parametric configuration system and some typical trees and shrubs parametric database, we use examples to illustrate...
the optimization algorithm plays an important role in solving the complex problems, and many complex problems can be modeled as a combinatorial optimization problem. The multi-dimensional knapsack problem is a kind of typical combinatorial optimization problem. The pollination algorithm is a kind of natural heuristic algorithm proposed in recent years, which has the characteristics of few parameter...
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