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The Design of a Automatic Theodolite

Author: LiuZhiJiang
Tutor: ChenAiGuo
School: Inner Mongolia University of Technology
Course: Detection Technology and Automation
Keywords: C8051F320 Tracking PTZ DC motor Incremental photoelectric encoder
CLC: TH761.1
Type: Master's thesis
Year: 2009
Downloads: 120
Quote: 0
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Abstract


The atmospheric boundary layer is the main space , belongs to the bottom part of the atmosphere of human life and production activities , changes in the weather and atmospheric pollution occurred here . The importance of the atmospheric boundary layer humanity must study it , to master its features and variation . Local area wind measurement is a common method of people study the law of motion of the atmospheric boundary layer , has a very important significance for industrial and agricultural production and environmental protection . The ordinary wind measurement theodolite measurement process , the need to manually tracking pilot balloon , the need to manually record observational data , manual data entry , the entire measurement process procedures cumbersome , difficult to guarantee the synchronization and real-time , resulting in large errors and human loss , it is difficult to ensure the accuracy and reliability of meteorological data collection and analysis of data . The topics put forward a method to solve the above problems , and discusses the design and realization of automatic theodolite . Detailed analysis and study of the composition and function of automatic theodolite using microcontroller C8051F320 as the control chip , integrated dual-channel DC motor driver IC L298 as a driver chips , pulse-width modulation (PWM) DC motor drive with reducer DC motor as the drive means of the camera incremental optical encoder to measure the camera turned pitch angle and the direction angle . The two-way transmission of data via USB communication between the upper and lower machine . The programming language of the software using the C language , it is a complete integrated development environment Silabs provided . As a highly integrated chip design choices , the design of the system has low power consumption , low cost , small size , strong anti-interference ability .

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CLC: > Industrial Technology > Machinery and Instrument Industry > Instruments, meters > Earth Science Instruments > Survey Instrument > Theodolite
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