Abstract:
A liquid level measuring device comprises an inner-tube unit having an inner tube and at least one inner-tube coil surrounding the inner tube; an outer-tube unit having a plurality of outer tubes, each outer tube having a plurality of outer-tube coils disposed thereon, the outer tubes being stacked, the inner tube being arranged inside the outer tubes and being risen and fallen as a level of a liquid in the outer tubes varies; and a control unit electrically connecting to the respective outer-tube coils, the control unit transmitting a set of position coded signals to the outer-tube coils disposed on an individual outer tube, the control unit determining the liquid level according to an induced signal generated by the inner-tube coil. Said device has many advantages including low cost and modular design, and such a device is easily to be deployed.
Abstract:
A solid-state light source module that is utilized to be arranged in at least one dimension to form a solid-state lighting system is provided. The solid-state light source module includes a main body, a signal input interface, a signal output interface, a solid-state light source, and a control unit. The signal input interface is utilized to receive at least one location input command. The signal output interface is utilized to issue a location output command. The control unit is utilized to add one to the second location input command to serve as the location output command, and to control luminosity of the solid-state light source. A solid-state lighting system and an operating method thereof are also provided.