TY  - Data
T1  - Monitoring Data Set of Surrounding Rock Temperature Field of Xing'anling Tunnel of Suiyuan Manchurian Expressway (September 2020 December 2020)
A1  - bai ruiqiang
DO  - 10.12072/ncdc.nieer.db2764.2024
PY  - 2023
DA  - 2023-03-31
PB  - National Cryosphere Desert Data Center
AB  - & emsp; This data set only involves the temperature field monitoring data of Xing'anling Tunnel of Suiyuan Manchurian Expressway. It mainly includes the surrounding rock temperature change data of the monitoring section. The time range of the dataset is from September 2020 to December 2020. In the monitoring process, Pt100A temperature sensor and supporting equipment (temperature measuring rod and temperature measuring box) made by Harbin Institute of Technology are used. For the imported Pt100A temperature sensor chip, its accuracy is up to 0.02 ℃. In addition, each monitoring section needs to be equipped with a wireless bridge. Data is transmitted to the 4G route set at the tunnel portal through the wireless bridge, and wireless transmission is achieved through 4G signals. The layout of the wireless bridge is shown in Figure 2. Wireless bridge is a bridge to connect wireless networks. It connects two distant networks by means of wireless bridge. In recent years, it is often used to replace optical fiber and network cable, and even used for network data transmission of several kilometers or tens of kilometers. The working principle of the wireless bridge is to perform wireless bridging through microwave transmission and reception in the specified frequency band. Because microwave transmission is straight line propagation, it is necessary to ensure that there are no obstructions in the transmission path when using the wireless bridge. The common working frequency bands are 2.4GHz and 5.8GHz.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/a3352589-e25b-4281-b216-321a15c4dc07
ER  -