Design of the Automatic Guided Vehicle Control System Applied to Automotive Logistics

2014 ◽  
Vol 644-650 ◽  
pp. 381-384
Author(s):  
Xin Zhang ◽  
Hao Zhou ◽  
Guo Song Liu
Keyword(s):  
Control System ◽  
Absolute Error ◽  
Vehicle Control ◽  
Test Results ◽  
Circuit Performance ◽  
Automatic Driving ◽  
Automatic Guided Vehicle ◽  
Distribution Logistics ◽  
Auto Parts ◽  
The Cost

In order to improve the efficiency of auto parts distribution logistics, to lower the cost of auto production in transportation logistics, and to reduce accidents, in this paper it is designed that an automatic guided vehicle control system to replace the manned tractors in the distribution sites. The system is equipped with an infrared homing device that can ensure the automated guided vehicle (AGV) along a predetermined route automatic driving at a given distribution information, without the needs to manually guided. Test results show that the circuit performance of AGV control system is stable to ensure the accuracy of the tracking in the practical application, and the mean absolute error of the tracking is less than 0.04m.

Research on Soft-Sensing Technique of Vehicle State Parameters

2013 ◽  
Vol 457-458 ◽  
pp. 1212-1215
Author(s):  
Feng Du ◽  
Zhi Wei Guan ◽  
Chun Hui Liu ◽  
Chao Kong
Keyword(s):  
Control System ◽  
Real Time ◽  
Vehicle Control ◽  
Lateral Acceleration ◽  
Extended Kalman Filtering ◽  
Specific Flow ◽  
Soft Sensing ◽  
Time Parameters ◽  
The Cost ◽  
Vehicle Dynamic Model

For meeting the needs of vehicle control system to some real-time parameters, a kind of soft-sensing technique was studied by using the extended Kalman filter theory in this paper. The specific flow for the application of extended Kalman filtering theory about the estimation of vehicle state parameters was presented detailedly, a state observer was established based on the vehicle dynamic model of a 2 degree of freedom. Simulation results indicate that these types of soft-sensing technique can measure some key state information of vehicle easily and accurately, such as longitudinal and lateral acceleration, and get real-time state estimates required by vehicle control system. Hence, it has very important meaning in reducing the cost of control system of vehicle.

Research on Automatic Driving Control System for Coach Collision Test

2014 ◽  
Vol 643 ◽  
pp. 25-31
Author(s):  
Qiu Fang ◽  
Jian Bin Yu ◽  
Meng Meng ◽  
Fu Qing Yang
Keyword(s):  
Control System ◽  
Pid Control ◽  
Coincidence Degree ◽  
Maximum Deviation ◽  
Center Line ◽  
Test Vehicle ◽  
Automatic Driving ◽  
Test Technology ◽  
The Cost ◽  
Test Control

In order to reduce the cost of coach collision test in R & D process, coach collision test control system is designed by using automatic driving technology. The pseudo collision vehicles run along the longitudinal center line independently, till collide with fixed obstacles. In the coach, PID control theory is used to design and research the control on speed and turn, then install the controller and the corresponding sensors, which is in accordance with the requirements of impact test technology. The experiment results show that, maximum deviation of the test vehicle longitudinal center line coincidence degree is +125mm and-115mm respectively, the speed is still steady by driving straight to accelerate to the required speed of the collision, the design scheme is feasible.

scholarly journals Development Of Cost-Saving Energy For Home Lighting Based Microcontroller and RTC

2019 ◽  
Vol 2 (2) ◽  
pp. 20-24
Author(s):  
Benriwati Maharmi ◽  
Toriq Kardova ◽  
Ermawati
Keyword(s):  
Control System ◽  
Cost Saving ◽  
Automatic Control ◽  
Power Supply ◽  
Setting Time ◽  
Electrical Energy ◽  
Test Results ◽  
Saving Energy ◽  
Real Time Clock ◽  
The Cost

The use of controlled and efficient electrical energy can save the cost of electricity expenditure. This study aims to design the cost saving energy tool for household scale of lighting using automatic microcontroller system. The design of the appliance used the automatic control system of home lights, which setting time using RTC (Real Time Clock) and a microcontroller Arduino Mega 2560. Power supply on this system was operated to supply power all existing components and controller using Arduino Mega 2560 microcontroller. Based on the test results, the cost-saving energy tool worked as an expectation of controlling the On/Off lights automatically, the RTC and current sensors can work properly to limit the current. Therefore, this design proposed can reduce the cost of electrical energy.

Effect of Inner and Outer Wheels Driving Force Control on Small Electric Vehicle

2020 ◽  
Vol 17 (4) ◽  
pp. 8246-8254
Author(s):  
K. Shibazaki ◽  
H. Nozaki
Keyword(s):  
Control System ◽  
Angular Velocity ◽  
Electric Vehicle ◽  
Force Constant ◽  
Force Control ◽  
Driving Force ◽  
Vehicle Control ◽  
Steering Angle ◽  
Force Control System ◽  
The Difference

In this study, in order to improve steering stability during turning, we devised an inner and outer wheel driving force control system that is based on the steering angle and steering angular velocity, and verified its effectiveness via running tests. In the driving force control system based on steering angle, the inner wheel driving force is weakened in proportion to the steering angle during a turn, and the difference in driving force is applied to the inner and outer wheels by strengthening the outer wheel driving force. In the driving force control (based on steering angular velocity), the value obtained by multiplying the driving force constant and the steering angular velocity,  that differentiates the driver steering input during turning output as the driving force of the inner and outer wheels. By controlling the driving force of the inner and outer wheels, it reduces the maximum steering angle by 40 deg and it became possible to improve the cornering marginal performance and improve the steering stability at the J-turn. In the pylon slalom it reduces the maximum steering angle by 45 deg and it became possible to improve the responsiveness of the vehicle. Control by steering angle is effective during steady turning, while control by steering angular velocity is effective during sharp turning. The inner and outer wheel driving force control are expected to further improve steering stability.

Path Tracking Controller Design of Automatic Guided Vehicle Based on Four-Wheeled Omnidirectional Motion Model

2020 ◽  
Vol 17 (2) ◽  
pp. 7996-8010
Author(s):  
X. Wu ◽  
Y. Yang
Keyword(s):  
Control System ◽  
Fuzzy Controller ◽  
Controller Design ◽  
Threshold Value ◽  
Position Angle ◽  
Path Tracking ◽  
Global Coordinate System ◽  
Automatic Guided Vehicle ◽  
Input Variables ◽  
Industrial Pc

This paper presents a new design of omnidirectional automatic guided vehicle based on a hub motor, and proposes a joint controller for path tracking. The proposed controller includes two parts: a fuzzy controller and a multi-step predictive optimal controller. Firstly, based on various steering conditions, the kinematics model of the whole vehicle and the pose (position, angle) model in the global coordinate system are introduced. Secondly, based on the modeling, the joint controller is designed. Lateral deviation and course deviation are used as the input variables of the control system, and the threshold value is switched according to the value of the input variable to realise the correction of the large range of posture deviation. Finally, the joint controller is implemented by using the industrial PC and the self-developed control system based on the Freescale minimum system. Path tracking experiments were made under the straight and circular paths to test the ability of the joint controller for reducing the pose deviation. The experimental results show that the designed guided vehicle has excellent ability to path tracking, which meets the design goals.

Mechanical Behavior of Ti-6Al-4V Manufactured by Electron Beam Additive Fabrication

2013 ◽  
Author(s):  
Leila Ladani ◽  
Lalit Roy
Keyword(s):  
Mechanical Properties ◽  
Electron Beam ◽  
Lead Time ◽  
Aerospace Industry ◽  
Tensile Tests ◽  
Test Results ◽  
Great Resistance ◽  
Additive Fabrication ◽  
Anisotropy Effect ◽  
The Cost

Additive Layer Fabrication, in particular Electron Beam Additive Fabrication (EBAF), has recently drawn much attention for its special usability to fabricate intricately designed parts as a whole. It not only increases the production rate which reduces the production lead time but also reduces the cost by minimizing the amount of waste material to a great extent. Ti6Al4V is the most common type of material that is currently being fabricated using EBAF technique. This material has been used in aerospace industry for several reasons such as excellent mechanical properties, low density, great resistance to corrosion, and non-magnetism. The effects of build direction of layers (namely, addition of layers along one of the x, y & z directions with respect to the build table) and the anisotropy effect caused by it has not been explored vigorously. This anisotropy effect has been investigated in this work. Different mechanical properties such as Yield Strength (YS), Ultimate Tensile Strength (UTS), and Modulus of Elasticity (E) of these three types of Ti6Al4V are determined using tensile tests and are compared with literature. The tensile test results show that YS and UTS for flat-build samples have distinguishably higher values than those of the side-build and top-build samples.

Research and Design of Intelligent Lighting Control System Based on Industrial Wireless Technology

2011 ◽  
Vol 467-469 ◽  
pp. 620-624 ◽  
Author(s):  
Jun Wang ◽  
Wei Ru Chen
Keyword(s):  
Control System ◽  
The Internet ◽  
Control Technology ◽  
Wireless Technology ◽  
Lighting Control ◽  
Turn On ◽  
Point Control ◽  
The Cost ◽  
Research And Design ◽  
The Internet Of Things

The intelligent lighting control system is one of typical applications of the Internet of things. The method of intelligent lighting control system based on industrial wireless technology is proposed in the paper. It used proposed three-point-control technology, and adjusting the brightness of lamps, turn on/off the lamps and a part of fault detection can be realized. At the same time, it can greatly reduce the cost of system. It will be useful to engineer and researchers.

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