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The Design and Devices of Laser Elocmeter Based on Compensative Algorithm of Speed

Author: ZhangYiCheng
Tutor: LiLiHong
School: Taiyuan University of Technology
Course: Control Theory and Control Engineering
Keywords: Car tachometer Speed ??compensation algorithm Laser Screen SCM Sensor
CLC: TP212.1
Type: Master's thesis
Year: 2010
Downloads: 118
Quote: 0
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Abstract


With the rapid development of transportation, vehicle overloading is also growing. At present, China's road transport vehicle overloading is a common phenomenon, there are varying degrees of overload behavior in areas with serious, almost all freight vehicles. Vehicle overloading transport caused great harm to the traffic safety and transportation markets, vehicle production order and road and bridge infrastructure. Key technologies inhibition is an important means of overloading the vehicle weight fees, and weight fees, vehicle dynamic weighing. Therefore, dynamic weighing technology research car not only has high academic value, and the larger social and economic value. Automotive dynamic weighing system for load transportation governance provides considerable convenience, but its measurement accuracy has been a subject worthy of study. The research of this paper is to propose a way to improve the measurement accuracy dynamic weighing system speed compensation algorithm to design a dynamic weighing system is used in conjunction with the speed sensor and in accordance with this algorithm, its main role is as dynamic weighing The system provides the vehicle speed and the speed compensation value, and in order to improve the measurement accuracy of the entire system. The speed sensor applied light curtain principle and MCU control technology, its external sensing device transmitting and receiving components by laser light curtain control circuit part of the use of the technology is mature AT89S52 chip. Firstly a simple introduction to the dynamic weighing technology application and development status, as an example of the significance of dynamic weighing accuracy and role, and leads to the theoretical background of the topic and the real significance of the topic. Followed by analysis and the proposed works and functional structure can improve the speed compensation algorithm for dynamic weighing accuracy, and algorithm for the theoretical basis for the design of a car with dynamic weighing system used in conjunction with laser speed sensor, the speed sensor details . Next, according to the actual needs of design the hardware circuit, including the five parts of the transmitter module, receiver module, the microcontroller peripheral control module, data display and communication module, function velocimetry system hardware circuit described in detail, and describes the works of the hardware circuit and performance parameters. Finally, the design speed sensor test and analysis system. From the analysis of the test results, the proposed algorithm and the design of the car speed sensor basically reached the design requirements. Of course, the car dynamic weighing system involves a multifaceted, multi-disciplinary knowledge, the current research work there are many difficulties, a large gap from the full commercial application, but believe that the vehicle speed sensor also has a broader prospects.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation components,parts > Transmitter ( converter),the sensor > Physical sensors
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