Research Article

An Improved Low-Cost Continuous Compaction Detection Method for the Construction of Asphalt Pavement

Figure 2

Structure of the compaction detection system. ADC: analog-to-digital converter; DSP: digital signal processing; SPI: serial peripheral interface; UART: universal asynchronous receiver/transmitter; ROM: read-only memory; GPRS: general packet radio service; LVDS: low-voltage differential signaling; FPC: flexible printed circuit; LCD: liquid crystal display.