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Study on Portable Real-time Compact Degree Detection System Based on DSP

Author: ShenJianDe
Tutor: TanNanLin
School: Beijing Jiaotong University
Course: Safety Technology and Engineering
Keywords: Dynamic modulus values DSP CAN bus SCI Vibration acceleration Speed
CLC: U416.1
Type: Master's thesis
Year: 2007
Downloads: 144
Quote: 5
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Abstract


With the use of the continuous development of China 's highway construction , the substantial increase of the level of mechanization of the roadbed construction and advanced shipment , paving , compaction machinery the roadbed construction speed continues to increase , traditional compaction quality testing methods are often difficult to meet timely guidance to the construction requirements . To this end, we developed a continuous , accurate , fast and degree of compaction testing equipment , subgrade compaction quality comprehensive real-time monitoring has important practical significance . The paper first analyzes the working principle of the classified nature of the soil compaction principle and vibratory roller , roller - soil \. The design on the basis of the results of the detection method of the existing degree of compaction , DSP - based embedded system modules , to achieve acceleration , speed signal acquisition , signal processing and transmission , serial communication , implementation , lower machine communication . And the development of CAN communication interface , to facilitate the expansion of the embedded system . PC software system in the Visual Basic development environment design , friendly interface , the data dump , display and print functions . Combined in the detection algorithm on a digital signal processing algorithm . Finally, Matlab and homemade signal generator system simulation and test . By the theoretical analysis and test results prove this based on the degree of compaction of DSP detection system design is feasible , the detection method is reasonable , basic to complete the task of detection of subgrade compaction .

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CLC: > Transportation > Road transport > Road works > Roadbed, pavement engineering > Subgrade
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