Abstract: The present invention provides a method of mobile image identification for flow velocity and the apparatus thereof. The present invention integrates laser-light module and mobile photographing devices such as smartphones, cameras, or tablet computers. After multiple laser spots are projected on the surface of flowing water, water-surface images including the laser spots are photographed continuously. Then the software program of image identification in the mobile photographing device performs calculations and coordinate conversion. According to the difference between multiple water-surface images taken continuously, the flow-velocity information of the water surface is given.

Abstract: The present invention relates to a multi-lens monitoring system for bed elevation around a pier according to the present invention comprises a container, a holder, a plurality of photographing units, and a processing module. The container is disposed on the pier; the holder is disposed inside the container; and the plurality of photographing units are disposed on the holder for photographing the bed under water and producing a monitoring image. The processing module is used for activating one of the plurality of photographing units for photographing the bed under water. The processing module also analyzes the monitoring image, gives the elevation variation of the bed, and transmits the elevation variation of the bed to a remote monitoring unit for real-timely monitoring and recording. During the monitoring process, the processing module will change activating one of the plurality of photographing units according to the monitoring image, and hence the electrical power can be saved.

Abstract: A telescopic probe monitoring system for riverbed elevation monitoring at a bridge pier is revealed. The system includes a measurement module for measuring riverbed elevation under water and a control module. The measurement module includes a housing, a multi-layer tube, a driving member with scales, a photographic unit for capturing images, and a sensing unit. The control module controls the driving member to extend the multi-layer tube. Thus the sensing unit on the bottom of the multi-layer tube contacts the riverbed and then sends a sensing signal to the control module for stopping pushing the multi-layer tube and controlling the photographic unit to capture images of the driving member. According to the images and movement of the measurement module, the control module learns the riverbed elevation and sends the riverbed elevation to a remote monitor unit for real-time monitoring of the riverbed elevation.

Abstract: A probe monitoring system for riverbed elevation monitoring at bridge piers is revealed. The system includes a housing, a measuring rod, a moving member, a control module, a photographic unit and a sensing unit. The housing is fixed on the pier. Both the moving member for driving the measuring rod and the control module for control of the moving member are mounted in the housing. When the control module drives the measuring rod to move downward and the sensing unit on the bottom of the measuring rod approaches the riverbed, a sensing signal is sent to the control module. Thus the moving member stops moving the measuring rod and the photographic unit takes pictures of the measuring rod to generate an image. Then the riverbed elevation is obtained according to the image or the movement of the moving member and is sent to a remote monitor unit for real-time monitoring.

Abstract: A telescopic probe monitoring system for riverbed elevation monitoring at a bridge pier is revealed. The system includes a measurement module for measuring riverbed elevation under water and a control module. The measurement module includes a housing, a multi-layer tube, a driving member with scales, a photographic unit for capturing images, and a sensing unit. The control module controls the driving member to extend the multi-layer tube. Thus the sensing unit on the bottom of the multi-layer tube contacts the riverbed and then sends a sensing signal to the control module for stopping pushing the multi-layer tube and controlling the photographic unit to capture images of the driving member. According to the images and movement of the measurement module, the control module learns the riverbed elevation and sends the riverbed elevation to a remote monitor unit for real-time monitoring of the riverbed elevation.

Abstract: A probe monitoring system for riverbed elevation monitoring at bridge piers is revealed. The system includes a housing, a measuring rod, a moving member, a control module, a photographic unit and a sensing unit. The housing is fixed on the pier. Both the moving member for driving the measuring rod and the control module for control of the moving member are mounted in the housing. When the control module drives the measuring rod to move downward and the sensing unit on the bottom of the measuring rod approaches the riverbed, a sensing signal is sent to the control module. Thus the moving member stops moving the measuring rod and the photographic unit takes pictures of the measuring rod to generate an image. Then the riverbed elevation is obtained according to the image or the movement of the moving member and is sent to a remote monitor unit for real-time monitoring.

Abstract: The present invention relates to a multi-lens monitoring system for bed elevation around a pier according to the present invention comprises a container, a holder, a plurality of photographing units, and a processing module. The container is disposed on the pier; the holder is disposed inside the container; and the plurality of photographing units are disposed on the holder for photographing the bed under water and producing a monitoring image. The processing module is used for activating one of the plurality of photographing units for photographing the bed under water. The processing module also analyzes the monitoring image, gives the elevation variation of the bed, and transmits the elevation variation of the bed to a remote monitoring unit for real-timely monitoring and recording. During the monitoring process, the processing module will change activating one of the plurality of photographing units according to the monitoring image, and hence the electrical power can be saved.