Cantilever crane strain monitoring system and engineering machinery

The utility model provides a cantilever crane strain monitoring system and engineering machinery, and the system comprises a plurality of sensing units which are used for collecting the characteristic parameters of each monitoring point of a cantilever crane; each sensing unit comprises a first Wi-Fi (Wireless Fidelity) subunit; the sensor collection control unit comprises a second Wi-Fi subunit and is used for controlling the plurality of sensing units; and each sensing unit is in wireless connection with the second Wi-Fi subunit of the sensor collection control unit through the first Wi-Fi subunit. Therefore, parameters such as the telescopic geometric dimension, the inclination angle and the vehicle-mounted motion load of the boom can be conveniently, quickly and dynamically acquired. 本实用新型提供一种臂架应变监测系统及工程机械，臂架应变监测系统包括：多个感知单元，用于采集所述臂架的各个监测点的特征参数；每个所述感知单元均包括第一Wi-Fi子单元；传感器集采控制单元，包括第二Wi-Fi子单元，用于对所述多个感知单元进行控制；每个所述感知单元均通过所述第一Wi-Fi子单元与所述传感器集采控制单元的第二Wi-Fi子单元进行无线连接。由此，可以方便快捷地动态采集臂架的伸缩几何尺寸、倾斜角度和臂架随车运动载荷等参数。