The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper, the path tracking control problem for intelligent vehicle in non-single straight road conditions is researched. When the vehicle turns, we can regard it as the vehicle running through a portion of Arc-shaped sections. The centripetal force of the vehicle in cornering can be equivalent to the lateral constant interference, and the optimal output feedback H∞ controller is designed to...
In order to alleviate the city traffic pressure, reduce the delay time of vehicles on the road, this paper design a traffic monitoring system based on RFID. Integrated climate, road conditions and power control all the factors considered, this papers choose to use passive tags to identify the vehicle. Multifunctional integration RFID reader reads the tag information stored inside the vehicle effectively,...
The paper studies the problem of finite time formation control for multiple vehicles. The vehicle is modeled as the full actuated rigid body, both the formation time and the geometric structure of the formation are specified by the task. An open optimal control law is derived by using Pontryagins minimum principle, and is converted to the closed form by feeding the current state back under the assumption...
In this paper, dynamic role assignment and collision avoidance based on consensus tracking algorithm are investigated for systems with complete communication graph. First, based on the traditional consensus protocol, consensus-based control algorithm with dynamic role assignment is proposed. To make each agent reach the closest formation point, we give an efficient assignment solution by solving an...
Considering capacity of transportation measured by space and delivery route constraints, a coordinative scheduling problem of single machine manufacturing and multiple customer delivery with due date windows was studied in this paper. A bi-level mathematic programming model was presented, and a PSO algorithm is proposed to solve the problem. Some computing tests were performed to compare the different...
The emergency resources dispatching problem (EMDP) has been addressed in many research papers. few of them take dynamic travel time and how to find key dispatching route into consideration. Based on previous research about the EMDP, in this paper an optimization model is presented, a new model constraint is added which aims to decide the key routes that need to be repaired priority, and the dynamic...
Accurate real-time vehicle location technology in the fast-moving condition is one of the core content of the research field of vehicle active safety and automatic driving. The traditional technologies, like vehicular device-based distance sensors, satellite positioning, roadside beacon, the electronic map matching, are difficult to achieve precise positioning of the vehicle at high speed. In this...
This paper introduces the implementation process of intelligent vehicle path planning, including the establishment of environmental models, path search algorithm, as well as the visualization of digital map. Firstly, the article introduces the path planning and several algorithms; secondly, the A * algorithm is described, as well as the representation of environment model; thirdly, the article introduces...
Misalignment angles estimation of strapdown inertial navigation system (INS) using global positioning system (GPS) data is highly affected by measurement noises, especially with noises displaying time varying statistical properties. Hence, adaptive filtering approach is recommended for the purpose of improving the accuracy of in-motion alignment. In this paper, a simplified form of Celso's adaptive...
Variable universe fuzzy control based on intelligent control technology is proposed in this paper for the hypersonic flight process of nearspace vehicle (NSV) with severe changes of aero-dynamic parameters and susceptibility on the external disturbances. And the contraction-expansion factor of the fuzzy control is given to modify the scale of universe and reduce the computational cost. By adopting...
High frequency burr in the pulse signal is one of the most important reasons to affect the detection accuracy and reliability of signal. This paper puts forward a real-time filtering method based on State Machine, and gives a speed detection method, which has been successfully applied to military vehicle speed detection. In order to realize filtering, the State Machine, using CPLD as hardware and...
As the data volume increasing and function expanding, train communication networks are developing from train control networks to multi-function communication networks. This paper compares three typical train network architectures which are applicable for train control and condition monitoring, including Train Monitoring Networks based on Industrial Field Bus, Wired Ethernet and WLAN. The advantages...
This paper proposes an efficient neural network (NN) controller for the tracking control of an autonomous underwater vehicles (AUV) subject to unknown vehicle dynamics and significant uncertainties. The controller is first designed based on the error dynamics by using backstepping technique. Then, the unknown dynamics and uncertainties of the vehicle are handled by introducing a NN with single-layer...
Path planning is one of the critical issues in mobile robot applications. Traditional methods for path planning in unknown dynamic environment generally plan one step rather than multiple controlling steps. This paper proposes an approach with multiple controlling steps which integrates receding horizon control (RHC) for mobile robot path planning in which the obstacle avoidance problem is converted...
In order to deal with the inherent characteristics of an air-breathing hypersonic vehicle (AHV) including high nonlinearity, strong coupling, fast-time variability, under-actuation, parameter perturbations as well as uncertainties, the cascade decoupling technique based on the active disturbance rejection control (ADRC) is applied to design a tracking controller during cruise. The tracking strategy...
This paper focuses on the adaptive tracking problem for air-breathing hypersonic vehicles (AHVs) subject to aerodynamic uncertainties and unknown disturbances caused by modeling errors. Motivated by the nonlinear disturbance observer-based control approach (NDOBC), the parameter uncertainties are merged into the disturbances. A control law based on the tracking control method originally proposed by...
This paper reviews research results on flight control of air-breathing hypersonic cruise vehicles. The results are classified according to different flight control strategies. Their main ideas and drawbacks are analyzed. Finally, some suggestions on future work based on the analysis are pointed out.
Under the big data background, the massive traffic data provide the data to improve traffic control methods and put forward higher requirements for the accuracy of the traffic signal control. In this paper, we analysis the influence on green wave tape by queue length of vehicles through congestion data and sensor data on road, draw a queue dissipated model and import it into MAXBAND model. Then present...
In this paper, an improved trajectory tracking control law is proposed for a four-wheel differential nonholonomic drive intelligent vehicle. Based on the kinematics model and Euler-Lagrange (EL) system of the vehicle, the control laws adopt an improved typical backstepping method to design the kinematics controller and a fast terminal sliding mode technique to devise the dynamic control law, which...
This paper proposes a new intelligent reverse search car technology system suitable for large parking lots, using the latest research results which are NFC (Near Field Communication) technology and WIFI technology, combined with networking, Dijkstra improved algorithm, to achieve the precise positioning and fast reverse lookup the car. On the basis of reverse search technology, the software and hardware...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.