Abstract:
The present invention includes: plural common terminals; plural water level measurement terminals that are arranged at a certain interval along a longitudinal direction; a water level measurement control unit that measures the water level of a measurement subject by letting an electric current flow to the plural common terminals, then reading the state information of an electric current flowing to the plural water level measurement terminals; and an LED unit that reads and displays the water level measurement results through plural LEDs. The water level measurement system according to the invention comprises: the above-mentioned water level display device; a main control module that controls the water level display device to read the water level measurement results from the water level display device and display the water level measurement results in numerical form or on a scale; a power supply module that supplies power to the water level display device under the control of the main control module; and a display module that displays the water level measurement results according to control of the main control module.
Abstract:
The present invention relates to a mixture for inhibiting the growth of algae which contains a ceramic powder for generating anions, and to an antifouling paint constituting an antifouling system employing the same, and it relates to a production method for such an antifouling paint. Specifically, the mixture for inhibiting the growth of algae of the present invention relates to a mixture for inhibiting the growth of algae which comprises tourmaline and monazite powders for generating anions, and zirconia for releasing stable anions from these ceramic powders, and also sulphur-metal soap for promoting the activity of the released anions. When an antifouling staff gauge was produced using the antifouling paint of the present invention and was then tested, it proved possible to solve the problem of the inability to read the markings of gauges due to the accretion of algae.
Abstract:
The present invention relates to hydraulic engineering, and particularly, to an apparatus for measuring the fluid velocity and flow rate of running water in a river, lake, sea, and the like. Particularly, the present invention relates to a system for measuring fluid velocity and flow rate and to a method for measuring same, wherein the system comprises: a plurality of floats (100) simultaneously dropped into running water to transmit GPS position information signals on a real-time basis; and a receiving station (200) which receives, on a real-time basis, the GPS position information signals transmitted from the plurality of floats (100). The plurality of floats (100) are divided into two or more sets (100a, 100b, 100c) in accordance with communication frequency bands (F1, F2, F3), and at least one of the sets (100a, 100b, 100c) consists of two or more floats (100) which use the same communication frequency band (F1, F2, F3) and which in turn transmit GPS position information signals.
Abstract:
The present invention includes: plural common terminals; plural water level measurement terminals that are arranged at a certain interval along a longitudinal direction; a water level measurement control unit that measures the water level of a measurement subject by letting an electric current flow to the plural common terminals, then reading the state information of an electric current flowing to the plural water level measurement terminals; and an LED unit that reads and displays the water level measurement results through plural LEDs. The water level measurement system according to the invention comprises: the above-mentioned water level display device; a main control module that controls the water level display device to read the water level measurement results from the water level display device and display the water level measurement results in numerical form or on a scale; a power supply module that supplies power to the water level display device under the control of the main control module; and a display module that displays the water level measurement results according to control of the main control module.
Abstract:
PURPOSE: A measurement system for velocity of fluid and a method of the same is provided to determine the overall flow of water by monitoring the difference between a central part and an edge part. CONSTITUTION: A plurality of floats(100) transmit a GPS signal in real time. A receiving station(200) receives the GPS signal from the floats in real time. The plural floats are divided into at least two sets(100a,100b,100c) according to a communication frequency band and use one set in the same communications frequency band to sequentially transmit the GPS signal.
Abstract:
PURPOSE: A method and a device for recognizing a liquid level using a change of temporal pixel distribution on an image are provided to accurately measure a liquid level by minimizing measuring errors. CONSTITUTION: A method for recognizing a liquid level using a change of temporal pixel distribution on an image is as follows. A watermark image is digitalized depending on the concentration of each pixel distributed in X and Y directions(S1). The image, in which main scales and auxiliary scales are displayed, is extracted from the digitalized image(S2). Histogram data about the pixel, distributed in a Y direction, are formed(S3).