Energy-saving electricity-supplying and door-closing prompter

Abstract

The invention relates to an energy-saving electricity getting and door closing reminder, in particular to a dormitory electricity getting and door closing reminder which can prevent householders from carelessly wasting electric energy and using the electric energy by stealing. The reminder comprises a reflective optoelectronic coupler, a 555 timer, a relay control circuit, a alternating voltage control circuit, a timing and alarming integrated circuit, a door magnistor and the like. The invention is an electronic device reminder which is suitable for being assembled and used in a dormitory and is composed of the 555 timer, the door magnistor, the optoelectronic coupler and the alarming device. When users come back to the dormitory, the electricity can be used only by inserting a card; and when the users leave the dormitory, the power supply can be cut off, and a reminding alarm can be given out in time if the door is not closed.

Description

technical field [0001] The invention relates to an energy-saving power-taking and door-closing reminder, in particular to a dormitory power-taking and door-closing reminder for residents to avoid unintentional waste of electric energy and theft. technical background [0002] Electrical appliances such as door magnetic switches, 555 timers, and alarms have long been used in electrical appliances in various fields, but a kind of electrical device that has both power-taking and door-closing reminders developed by combining these devices has not yet been developed. [0003] The dormitory of a school or company or enterprise is a large collective residential area. When there is no one in the dormitory, you forget to turn off the lights, fans, air conditioners and other electrical appliances to waste power, causing huge energy loss; when you rush out in a hurry, you often fail to Close the door, and there are many people entering and leaving the building every day. Some criminals ...

AI Technical Summary

Problems solved by technology

[0003] The dormitory of a school or company or enterprise is a large collective residential area. When there is no one in the dormitory, you forget to turn off the lights, fans, air conditioners and other electrical appliances to waste power, causing huge energy loss; when you rush out in a hurry, you often don’t Close the door, and there are many people entering and leaving the building every day. Some criminals sneak in and see that some dormitories are empty and the door is not closed properly, resulting in theft of property and so on.

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