National Applied Research Laboratories

Ho-Cheng Lien

Jihn-Sung Lai

Franco Lin

Whey-Fone Tsai

Wen-Yi Chang

Lung-Cheng Lee

Yu-Hui Liao

Teng-Yi Yu

Chin-Hsiung Loh

Jyh-Horng Wu

Chih-Tsung Hsu

Shiang-Jen Wu

Te-lin Chung

Yi-Haur Shiau

A method of performing real-time correction of a water stage forecast includes obtaining at least one predicted water stage of at least one time and a predicted water stage of a next time after the at least one time; obtaining at least one observed water stage of the at least one time; generating a system error of the water stage forecast according to the at least one observed water stage, the at least one predicted water stage, the predicted water stage of the next time, a Time Series method, and an Average Deviation method; utilizing a Kalman filter method to generate a random error of the water stage forecast; generating a water stage forecast correction of the next time according to the system error and the random error; and correcting a predicted water stage of the next time according to the water stage forecast correction and the predicted water stage.

Method of performing real-time correction of a water stage forecast

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.

Multi-lens monitoring system for bed elevation around a pier

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.

Probe monitoring system for riverbed elevation monitoring at bridge piers

A monitor system for monitoring riverbed elevation changes at bridge piers is revealed. The monitor system includes a container, a rail, a holder, a photographic unit, a processor and a transmission unit. The container is disposed at a pier under the water and the rail is mounted in the container. The holder is arranged at the rail and is moved on the rail. The photographic unit is disposed on the holder to capture a monitor image of a riverbed under the water. As to the processor, it processes the monitor image so as to learn elevation change of the riverbed under the water. By the transmission unit, the riverbed elevation change is sent to a remote monitor unit so as to get the riverbed elevation according to the riverbed elevation change. Thus the riverbed elevation change at the bridge pier is monitored in real time.

Monitor system for monitoring riverbed elevation change at bridge pier

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Hsinchu, Taiwan

Ho-Cheng Lien