2 results about "Block diagram" patented technology

The invention discloses a flood-preventing water level measuring tape with a fully-automatic warning function and a production method thereof. The flood-preventing water level measuring tape comprises a flood-preventing water level measuring tape device, a water level sensor, a flood early-warning sound source, a power amplifier and a high-tone loudspeaker; and the measuring tape device is characterized by comprising an automatic flood early-warning device, a 220-volt alternating-current power supply is arranged at the left side of a block diagram of the early-warning device; a first water level sensing contact, a second water level sensing contact and a third water level sensing contact are arranged at the right side of the early-warning device in sequence; a first flood early-warning sound source, a second flood early-warning sound source and a third flood early-warning sound source are arranged at the right side of the water level sensing contact; the power amplifier is arranged at the right side of the flood early-warning sound source; the high-tone loudspeaker is arranged at the right side of the power amplifier; the first water level sensing contact, the second water level sensing contact and the third water level sensing contact of the fully automatic flood warning device are connected with a water level sensor shell at the right side of the flood-preventing water level measuring tape device; and the flood-preventing water level measuring tape is economical and practical.