Principle and realization method of tunnel deformation detection based on image recognition and data transmission technology

To detect the deformation of the tunnel structure based on image sensor networks is the advanced study and application of spatial sensor technology. For the vertical settlement of metro tunnel caused by internal and external stress after its long period operation, the overall scheme and measuring principle of tunnel deformation detection system is in- troduced. The image data acquisition and processing of detection target are achieved by the cooperative work of image sensor, ARM embedded system. RS485 communication achieves the data transmission between ARM memory and host computer. The database system in station platform analyses the detection data and obtains the deformation state of tunnel inner wall, which makes it possible to early-warn the tunnel deformation and take preventive measures in time.

智能快递柜的控制电路设计

由于电商的快速发展,快递量的增加,因应而生了智能快递柜[1].智能快递柜主要有安卓工控机、触摸液晶屏、安防监控和人脸识别摄像头、扫码打印、喇叭、锁控板、LED照明整条和电源等组成.其中,锁控板主要是控制格口开门,内部都安装有锁控板,柜与柜间经过电源线和信号线连接.主柜锁控板连接工控机,工控机控制主副柜锁控板,实现快递柜的开关门和信息采集.本设计包括快递柜电源分配系统、锁控板控制电路和传感器监测[3]等,提升和优化快递柜性能,使其利用率更高,体验更佳,更智能化.