| Road construction in china will achieve tremendous development during the twelfth 5-year, and the traditional means of compaction testing has been unable to meet the needs of compaction process control. The paper proposes an improved compaction detection method and designs a system model based on Continuous Compaction Control after studying relative detection method and research at home and abroad. The detection algorithm is on the combination of the FFT, digital integration, digital filtering and least squares fitting algorithm. Firstly, the relative value of compaction is collected by using the detection algorithm, then the correspondence between the actual value of compaction and the relative value of compaction by doing a large number of field tests, finally the system is calibrated and the actual measured value of compaction is obtained.The PC/104 board is used as system core, and extend the PC/104 analog and digital input board as the system hardware components; ZIGBEE and GPRS wireless communication module is used as communication part; external software uses a structured and modular design approach, and upper and lower software system is designed by using Visual Studio 2005, which realizes the functions of data displaying, restoring and printing.Through theoretical analysis and field test results show that this compaction meter design is reasonable, it can meet the requirements of online compaction detection during road construction.
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