Gesture recognition non-contact switch system

Abstract

The invention discloses a gesture recognition non-contact switch system. The switch system comprises an induction area and a recognition area. The induction area comprises a copper-clad plate, the recognition area comprises a single-chip microcomputer, an FDC2214 capacitive sensor and a relay, the copper-clad plate of the induction area is connected with the FDC2214 capacitive sensor through a Dupont line, the single-chip microcomputer is connected with the FDC2214 capacitive sensor through the Dupont line, and the relay is connected with the single-chip microcomputer through the Dupont line.The capacitance of the copper-clad plate is changed along with the gesture above the copper-clad plate; the FDC2214 capacitance sensor is used for monitoring the capacitance value of the copper-clad plate and sending the capacitance value to the single-chip microcomputer, and the single-chip microcomputer matches the capacitance value with a stored set gesture capacitance value, recognizes and determines a current gesture and sends an instruction to control the relay to perform on-off action according to the recognized current gesture. The system has the advantages of high precision, low powerconsumption, low noise, strong anti-interference capability, low cost and capability of preventing mistaken touch.

Description

technical field [0001] The invention belongs to the field of sensor technology and single-chip microcomputer control technology, and relates to a gesture recognition non-contact switch, in particular to a gesture recognition non-contact switch based on an FDC2214 capacitive sensor. Background technique [0002] A switch is a component used to control the on-off of a circuit. Common switches include touch key switches, mechanical switches, wireless remote control switches, voice-activated switches, and light-activated switches. These switches can be divided into two types according to the execution method: one is that the relevant operation needs to be directly touched by hand or other objects, such as the traditional household mechanical switch; the other is that the corresponding operation switch can be realized without direct contact , such as voice control, light control, pyroelectric induction, wireless remote control switch. Contact switches present hygiene and safety ...

AI Technical Summary

Problems solved by technology

The other is safety issues. Although there is a plastic shell on the outside of the traditional contact switch, if there is water on the hand, it will cause an electric shock, and oil will cause the shell to be dirty, and there is also a risk of leakage. Suitable for

However, the current non-contact switches, whether they are sound-activated, light-controlled or infrared, generally have problems such as low precision, poor identification, difficulty in multi-level adjustment, poor anti-interference ability, and easy to cause false triggering.

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