Rainwater alarm device

Abstract

The invention discloses a rainwater alarm device which comprises a water containing groove, a single chip microcomputer control circuit, a vocal apparatus and an alarm light, wherein the water containing groove consists of a metal body and a plastic body; the single chip microcomputer control circuit consists of an AT89S51 single chip microcomputer, a resistor, a capacitor and a crystal oscillator; a buzzer is adopted as the vocal apparatus; a red-light light-emitting diode is adopted as the alarm light; and the water containing groove is connected with the single chip microcomputer control circuit through a water-proof lead. The invention discloses a rainwater alarm device which has a simple structure, and can be installed movably; a 51 single chip microcomputer with the low voltage and low power consumption is adopted for realizing intelligent control, the circuit structure is simplified, the environmental suitability is strong, and the reliability is high; the water containing groove is designed uniquely, rainwater can be timely cleared, and the rainwater switching function is provided; and a charging battery is adopted for charging, so that the charging is convenient and fast.

Description

technical field [0001] The invention relates to a rainwater alarm device, in particular to a rainwater alarm device controlled by a single-chip microcomputer, which belongs to the field of living appliances. Background technique [0002] The rain alarm device is a device that uses circuit control to alarm according to rain. When the control circuit detects that there is rainwater in the water holding device, the alarm device can be driven to give an audible and visual alarm. The equipment has its own power supply, and no human operation is required during use. The sound and light alarm is realized by a sound generator and a luminous tube, which is portable and reliable. The on-site installation and debugging of the equipment is simple, does not require professionals, is suitable for the general population, and is conducive to rapid and large-scale promotion. [0003] Most of the rainwater alarm devices in the current technology are controlled by electronic circuits. There ...

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Problems solved by technology

[0003] Most of the rainwater alarm devices in the current technology are controlled by electronic circuits. There are many circuit components used, the circuit design is relatively complicated, and the reliability is low, frequent maintenance is required, and the environmental adaptability is poor; Convenience, low efficiency; the required power supply voltage is relatively large, and the power loss is relatively large; the power supply method adopted is relatively fixed, which is not convenient enough; the rainwater collection device has no function of cleaning rainwater

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