Abstract: Aiming at the problems such as missing,displacement and information security of boundary piles in territorial space control area,an online monitoring system of boundary piles is designed. By using Beidou positioning,acceleration sensor and Internet of Things technology to develop boundary pile transaction monitoring equipment,a visual boundary pile information management platform was built based on Web technology,and an intelligent mobile inspection application program was designed. Through 4G mobile network communication,functions such as all-weather boundary pile positioning,real-time monitoring of transaction and automatic alarm were realized. The study results show that the system adopts domestic hardware design and low-power MCU,which improves the information security and endurance of the system,effectively replaces the boundary pile protection methods based on artificial field inspection,and realizes the low-cost and high-efficiency boundary pile monitoring. The intelligent boundary pile monitoring system is applied to the measuring sign monitoring of Zhejiang Provincial Department of Natural Resources,and the transfer and displacement of 110 measuring signs in Jiaxing City are monitored all-weather, and the conventional positioning level accuracy reaches 2 m. 

Key words: smart boundary pile,Beidou positioning,Internet of Things,boundary pile monitoring