Intelligent door lock system and implementation method of preventing door from being closed accidentally
A smart door lock and door closing signal technology, which is applied in the application of locks, building locks, electric locks, etc., can solve the problems of door body damage, affecting the efficiency of doors and exits, environmental noise, etc., and achieve the effect of preventing accidental closing
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Embodiment 1
[0031] Such as image 3 , Figure 4 As shown, the motion control mechanism of the baffle 10 mainly includes an electromagnet 8 and a spring 9. One end of the spring 9 is fixed on the door frame 4 or the wall where the door frame 4 is located, and a mechanical mechanism is formed between the other end of the spring 9 and the baffle 10. Connection structure. Such as Figure 5 As shown, the door closing signal sensing module 3 adopts a proximity switch, such as a commonly used infrared proximity switch, and the infrared proximity switch is electrically connected to the electromagnet 8.
[0032] The implementation method for preventing accidental closing of the smart door lock system is:
[0033] When someone approaches the infrared proximity switch, if the distance between the person and the infrared proximity switch is less than or equal to the expected distance calibrated by the infrared proximity switch, for example, 5cm, the infrared proximity switch outputs an electrical signal w...
Embodiment 2
[0037] Compared with Embodiment 1, the door closing signal sensing module 3 uses a pressure sensor, such as Figure 5 As shown, the others are the same as in Example 1.
[0038] It should be noted that in this embodiment, the door-closing signal sensing module 3 is a pressure-sensing signal, that is, a signal of the force when a person applies force to the door 2 instead of the distance between the person and the door 2 signal. The door closing signal sensor module 3 is used to detect the force between the person and the door body 2 and output the corresponding door closing signal to define the door closing behavior caused by human and accidental door closing caused by non-human factors. When the smart door lock system judges that the door is closed manually, the electromagnet 8 can be energized, so that the lock box 6 is in an open state, and the door is closed; on the contrary, when the smart door lock system judges that the door is closed accidentally, the electromagnet 8 is n...
Embodiment 3
[0040] Compared with embodiment 1, a comparator is added between the amplifying filter module and the electromagnet 8, such as Image 6 As shown, the others are the same as in Example 1.
[0041] Generally, when the distance between a person and the proximity switch reaches a certain distance, for example, when the distance is 5 cm, the proximity switch correspondingly outputs a certain voltage. After the certain voltage is calibrated, the corresponding proximity distance is the expected distance calibrated by the proximity switch. In this embodiment, when a person approaches the proximity switch, the proximity switch outputs the sensed door closing signal, that is, the distance signal between the person and the door 2 as a voltage signal, and the output voltage U is output to the amplifying and filtering module, After being processed by the amplifying and filtering module, the voltage U'is output. The voltage U'signal is first output to the comparator. In the comparator, U'is com...
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