Li Yanming, Shen Yuheng, Wang Xiaoquan, Li Sifeng, Li Tonglu, Zhao Quanli
School of Electronic and Control Engineering, Chang'an University, Xi'an 710064, China.
College of Geology Engineering and Geomatics, Chang'an University, Xi'an 710054, China.
Sensors (Basel). 2021 Jan 15;21(2):575. doi: 10.3390/s21020575.
The traditional cone penetration test system uses cable to transmit data; as the probe goes deeper into the ground, the length of the cable will become longer. This makes the installation of the test equipment more complicated, and excessively long cables cause signal distortion and seriously affect data accuracy. To simplify the experimental equipment and improve the accuracy of data acquisition, a cableless cone penetration test system is proposed. The improved system uses an SD card to store the experimental data, as opposed to using cables for communication which, often lead to the distortion of signals caused by long-distance communication and data loss caused by accidental cable breaks. Therefore, the accuracy of the collected data is higher, and the experimental device is simplified. To evaluate the applicability and efficiency of our design, we have carried out exploration experiments with the sensor system proposed in this paper. The test results show that the experimental data collected by the new system are basically consistent with the data collected by traditional cable CPT equipment, and the accuracy of the collected data is higher. It is more reliable and accurate to analyze the comprehensive mechanical properties of the soil layers with the data collected by the new system.
传统的圆锥贯入试验系统使用电缆传输数据；随着探头深入地下，电缆长度会变长。这使得测试设备的安装更加复杂，而且过长的电缆会导致信号失真，严重影响数据准确性。为了简化实验设备并提高数据采集的准确性，提出了一种无电缆圆锥贯入试验系统。改进后的系统使用SD卡存储实验数据，而不是使用电缆进行通信，因为电缆通信常常会因长距离而导致信号失真以及因电缆意外断裂而造成数据丢失。因此，采集到的数据准确性更高，并且实验设备得到了简化。为了评估我们设计的适用性和效率，我们使用本文提出的传感器系统进行了勘探实验。测试结果表明，新系统采集的实验数据与传统有线圆锥贯入试验设备采集的数据基本一致，且采集到的数据准确性更高。用新系统采集的数据来分析土层的综合力学性质更可靠、准确。
