Water Level Display Device Using LED, And Water Level Measurement System Including The Same

A fluid level display apparatus comprising:

• a member comprising:
• at least one first terminal;
• and
• a plurality of second terminals placed at different vertical locations of the member, the at least one first terminal causing current in second terminals immersed in a fluid;
• a fluid level measurement controller connected to the plurality of second terminals for detecting current in the plurality of second terminals to measure a level of fluid;
• and
• a display unit connected to the fluid level measurement controller for turning on or off a combination of a plurality of lighting elements representing the fluid level, the display unit comprising:
• a plurality sets of first lighting elements, each set of first lighting elements spaced at vertical locations corresponding to one of the plurality of second terminals and turned on or off to display the fluid level;
• a plurality sets of second lighting elements, a combination of the second lighting elements in each set of second lighting elements turned on or off to display an alphanumeric character representing the fluid level;
• and
• an LED driver for turning on or off the plurality sets of first lighting elements and the plurality sets of second lighting elements according to the fluid level.

A fluid level measuring system comprising:

• a fluid level display apparatus comprising:
• at least one first terminal,
• a plurality of second terminals placed at different vertical locations of the member, the at least one first terminal causing current in second terminals immersed in a fluid,
• a fluid level measurement controller connected to the plurality of second terminals for detecting current in the plurality of second terminals to measure a level of fluid, and
• a display unit connected to the fluid level measurement controller for turning on or off a combination of a plurality of lighting elements representing the fluid level;
• a control module for receiving the fluid level from the fluid level display apparatus;
• a power supply module for supplying power to the fluid level display apparatus;
• and
• a display module separate from the fluid level display apparatus and connected to the control module, the display module displaying the fluid level measurement.