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Study on the Best Transfer Station Selected in Beijing Subway Network

Study on the Best Transfer Station Selected in Beijing Subwa...

引用

International Conference on Electrical and Information Technologies for Rail Transportation (EITRT)

作者： Liu, Qi Zhang, Xingchen Chen, Junhua Xu, Bin Beijing Jiaotong Univ Beijing Peoples R China

ISBN: (纸本)9783642537516;9783642537509

Transfer station is the most important node of urban rail network, affecting transfer efficiency and overall efficiency of the network as a whole. Based on the investigation and statistics of the transfer time and train running time between transfer stations, this paper first finds the shortest path between any transfer stations with floyd algorithm. Then through analysis of transfer mode and passengers travel behavior, we can figure out the best transfer station for passengers, and take Beijing subway network as an example to validate the model and algorithm.

关键词： Transfer station Transfer mode floyd algorithm Shortest path Traveler behavior

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An Indoor Autonomous Guided Vehicle Based on Electromagnetic Tracking and Positioning Ibeacon 30

An Indoor Autonomous Guided Vehicle Based on Electromagnetic...

引用

30th Chinese Control and Decision Conference (CCDC)

作者： Luo, Jiaping Chen, Mingyun Li, Jiapeng Wei, Yongtao Hu, Yuchen Northeastern Univ Sch Control Engn Qinhuangdao 066000 Hebei Peoples R China

ISBN: (纸本)9781538612446

In order to further improve the efficiency of indoor unmanned transport, a low-power and efficient navigation and positioning system is designed. The system combines the advantages of the detecting method of electromagnetic signals and the indoor positioning technology based on Bluetooth Low Energy (BTLE). By analyzing the magnetic field model, common inductance coils are used as a sensor to detect the magnetic field, and the differential steering mechanism of the motor is controlled by the tracking characteristics of the dual- inductive electromagnetic sensor. For GPS can not provide satisfactory indoor positioning results, on the basis of the electromagnetic tracking system combined with the indoor positioning technology based on spatial information mode, a stable and independent indoor positioning system is finally realized. And with the predetermined electromagnetic track crossing point, the dead reckoning accumulated error for signpost is revised. The experimental results show that the system can achieve stable operation, and the system design is reasonable and basically meets the design goals and users' needs.

关键词： Electromagnetic Sensor RSSI Indoor Positioning System Electromagnetic Tracking floyd algorithm

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F-LLE algorithm and its Application in Fault Feature Extraction

F-LLE Algorithm and its Application in Fault Feature Extract...

引用

10th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI)

作者： Zhao, Rongzhen Shi, Kunju Li, Zhaohui Zhang, Tao Lanzhou Univ Technol Key Lab Digital Mfg Technol & Applicat Lanzhou Peoples R China

ISBN: (纸本)9781479911974;9781479911950

The traditional methods to extract the faults features have two disadvantages. It is that the some important information may be lost in the feature selection. And to implement the effective faults identification is very difficult in a high dimensional space describing the faults status. This is because not only the high-dimensional data is generally linear inseparable, but a complex hyper surface or hyper curvature among them will be appeared. Aimed to the had situation, a new method to combine the floyd algorithm with the Local Linear Embedding (for short, F-LLE) was proposed in this paper. It was used to reduce the dimension of faults data to a special rotor system. Due to the reduced characteristics is the result of original data to be combined according to some certain rules, the method was used to reduce the dimensions of original feature space. The sensitive features with low dimension to improve the accuracy of faults classification were extracted out by the process. The original feature space of rotor faults is composed of time and frequency domains information. The floyd algorithm has the ability to depict specifically the original feature space. And the LLE algorithm can keep the tendency invariant of original data set during the dimensionality reduction. So the sensitive characteristics with low dimensions can be extracted effectively out by the process. The results show that the final features extracted with the method are more suitable for the clustering and classification applications of faults data.

关键词： Rotor system Data set reduction floyd algorithm Local linear embedding

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Differential Wheeled Robot Navigation Based on the Smoothing A* algorithm and Dead-Reckoning 14th

Differential Wheeled Robot Navigation Based on the Smoothing...

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14th International Conference on Intelligent Autonomous Systems (IAS)

作者： Jiang, Daowei Yuan, Liang Xinxiang Univ Coll Mech Engn Urumqi 1230 Peoples R China Xinxiang Univ Urumqi 1230 Peoples R China

ISBN: (纸本)9783319480367;9783319480350

This paper aims to solve synthesis problems of two-wheel difference speed mobile robot in navigation and localization. A new method is proposed by combining the A* algorithm, motion control, and dead reckoning before the integrated treatment to address practical problems of short-term navigation and orientation during robot movement. First, the A* algorithm is used to plan out robot's trajectory from a known point to the target, floyd algorithm and circular arc algorithm are chosen for the optimization of the A* algorithm to make it in accordance with the trajectory of two-wheel differential motion robot. Then, the robot is controlled to move along the scheduled trajectory. Finally, based on dead-reckoning, robot's position in the environment during locomotion is calculated to

关键词： Positioning and navigation The A* algorithm floyd algorithm Motion control Combination calculation of dead-reckoning

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Modeling and optimizing conveying path for autonomous conveying robot

Modeling and optimizing conveying path for autonomous convey...

引用

Asia Simulation Conference/6th International Conference on System Simulation and Scientific Computing

作者： Liu, HX Zhu, MH Han, YF Wang, XA Cai, L Jiangsu Univ Sch Mech Engn Zhenjiang 212013 Peoples R China

ISBN: (纸本)7506278413

With the rapid development of the robot technology, the autonomous conveying robot has been widely applied in the industrial and serving fields. Thus, looking for a kind time and space efficient algorithm and then planning an optimal conveying path for the ACR is important to the actual application. The concept, application and path planning problems of autonomous conveying robot are generalized, and its mathematic model is also introduced. Besides, it is transformed to TSP problem and simulated annealing algorithm is adopted to get the optimal path. Moreover, some strategies are used to modify the standard SA algorithm and the converging speed is improved. A good conveying path planning example is given. Simulation results show that the proposed method is an effective approach to solve this problem and the operating efficiency is greatly improved.

关键词： autonomous conveying robot path planning floyd algorithm TSP simulated annealing

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Regional Road Network Shortest Path algorithm in Vehicle Navigation Systems

Regional Road Network Shortest Path Algorithm in Vehicle Nav...

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4th International Conference on Information Computing and Applications (ICICA)

作者： Li, Ying Yang, Aimin Li, Donghui Hebei Union Univ Coll Sci Tangshan 063009 Peoples R China Beijing Railway Bureau Tianjin Supply Section Tangshan 064000 Peoples R China

ISBN: (纸本)9783642537035;9783642537028

According to the characteristics of the regional road network, analyze the connectivity among the road sections, and draw to seek the regional road network the shortest path algorithm between two nodes. First, the paper will introduce the research background and significance of the vehicle navigation system, and analyze the research status and development prospects of the issue;secondly, build the regional road network model according to the transportation network map;then further describes floyd algorithm of the shortest path, and gives the C language code;finally, take actual traffic map in Tangshan city of Hebei province as network model, the paper achieves purpose by the use of floyd algorithm and provides a scientific and rational calculation basis for system realization.

关键词： the shortest path regional road network vehicle navigation floyd algorithm

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Resident travel path planning based on risk assessment of epidemic-related areas

Resident travel path planning based on risk assessment of ep...

引用

International Conference on Smart Transportation and City Engineering

作者： Wang, Zhijian Yang, Jianpeng Long, Shunzhong Guo, Jian North China Univ Technol Beijing 100144 Peoples R China

ISBN: (数字)9781510649767

ISBN: (纸本)9781510649767;9781510649750

Aiming at the problem of residents' need to travel during the epidemic, this paper designs a risk assessment method based on the spatial interaction of space-time objects in the epidemic-related area, and evaluates the epidemic risk in the associated area based on an improved gravity model and a one-dimensional steady-state water quality migration model. Based on the floyd algorithm and according to the residents' choice preferences, an optimal path solution model that simultaneously considers the epidemic risk factor and travel distance is established and the algorithm is verified. An actual road network in Shenyang City was used for example verification, and the difference between the path guidance during the regular period and the epidemic period was compared. The results show that the improved floyd algorithm can effectively avoid epidemic-related areas. As residents increase their preference for risk avoidance, the length of the guide path will gradually increase, but the risk of infection will gradually decrease.

关键词： Covid-19 Associated area Spatial interaction risk assessment route plan floyd algorithm

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Research on Parallel Test Technology for Flight Control Component Comprehensive Test System

Research on Parallel Test Technology for Flight Control Comp...

引用

Chinese Automation Congress (CAC)

作者： Yu, Fu Du, JiaLu Zhou, Qiang Syst Engn Res Inst Marine Syst Res Dept Beijing Peoples R China Beihang Univ Sch Automat Sci & Elect Engn Beijing Peoples R China

ISBN: (纸本)9781728176871

The flight control module plays an important role in the system development of air-to-air missile. Based on the integrated test system of flight control components, this paper introduces the concept of parallel test to improve the equipment test efficiency and save test time. By decomposing the test tasks of the test equipment, a Petri net model was established and a reachable tree model was introduced for parallel test modeling. The optimal parallel task scheduling strategy was obtained by using floyd algorithm. Design and write interactive friendly, intuitive display interface program. In addition, the feasibility and efficiency of the model are verified by the simulation test of the application program, and the prospect of the development of parallel testing in the test system is proposed.

关键词： parallel test Petri net reachable tree floyd algorithm

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Research on Dynamic Taxi Ride-Sharing Price Model 5

Research on Dynamic Taxi Ride-Sharing Price Model

引用

5th International Conference on Electromechanical Control Technology and Transportation (ICECTT)

作者： Xu, Shun Yin, Changlong Zhang, Qirui Lanzhou Univ Technol Coll Comp & Commun Lanzhou Peoples R China

ISBN: (纸本)9781728199283

With the diversity of people's travelling modes, the traditional taxi industry is facing severe challenges. In order to meet the travel requirements in the intelligent era, it is necessary to improve the market competitiveness of the taxi industry. This paper proposes a sharing pricing model based on the rate balancing between the driver and passenger. The main concept adopts the dynamic request method for the passengers to take the ride-sharing taxi. For the first passenger's request the nearest taxi receives the request, picks up the passenger on time and drives according to the shortest path calculated by floyd algorithm. When other passengers ask for a drive, the driver will choose the passengers according to the taxi seat capacity to complete the ride-sharing process until all the passengers arrive at the destination. In the calculation of the driver's income and the passenger's costs we consider the driving conditions in different time periods and use the optimal solution of the model to make a sharing price. Finally, the driver's income and the passengers' costs are compared and analyzed under three driving modes which are the common taxi, Didi express and ride-sharing taxi. The results show that the dynamic sharing pricing model designed in this paper is reasonable and very effective in daily life.

关键词： Intelligent transportation Multiplication mode floyd algorithm Rate equalization Billing algorithm

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Based on the research of simulation system of city traffic model

Based on the research of simulation system of city traffic m...

引用

3rd International Conference on Civil Engineering, Architecture and Building Materials (CEABM 2013)

作者： He, Panli Dai, Xinxiao Han, Xiaowei Shenyang Univ Sch Informat & Engn Liaoning Shenyang Peoples R China

ISBN: (纸本)9783037857779

In this paper, according to three major elements of road network "the collection of nodes, sections and the weight of road", established a combination model of static and dynamic of urban network based on graph theory. The model used the shortest travel time as the objective function for optimal path planning, focused on the analysis of link travel time, travel time is divided into free travel time of sections and intersection delay time to discuss and study. Finally, the floyd algorithm was used to simulate this network model, in order to prove the effectiveness of the network model.

关键词： Urban road network the optimal path floyd algorithm simulation

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