Capacitive touch chip applied in touch screen of smart door lock

With the pace of technological progress and the advent of the intelligent era, the door lock has been upgraded from the original "key lock" to the smart code lock to now has multiple functions such as biometric identification, intelligent control, remote monitoring, automatic alarm, and voice interaction. Touch chips have become more and more common in daily life for smart devices. With the continuous and steady growth of market demand in the fields of industry, smart door locks and home appliances, capacitive touch chips have been more and more widely used.

The alias of the touch screen can also be called the touch screen. It has the advantages of sensitive response speed, easy communication, durability, and space saving. It is a relatively convenient, simple, and natural human-computer interaction method. It can be operated with a touch of an icon or text on the display screen, which brings great convenience to people's life.
Touch screen (Touch panel), also known as touch panel, is an inductive liquid crystal display device that can receive input signals such as contacts. When touching the graphic buttons on the screen, the tactile feedback system on the screen can The program drives various connection devices, which can be used to replace the mechanical button panel, and create vivid audio-visual effects through the liquid crystal display screen.
The touch screen is an important part of the air purifier to realize human-computer interaction, which requires the design of a new touch screen installation component. The touch screen should realize the three major functions of gas concentration detection, air purification and human-computer interaction. The touch screen uses a gas sensor to realize the gas concentration detection function, uses buttons, buzzers, remote control devices and liquid crystal displays to realize the human-computer interaction function, and realizes the purification function by driving the fan to accelerate the air to flow through the purification system.
The capacitive touch chip integrates a high-resolution touch detection module and a dedicated signal processing circuit to ensure that the capacitive touch chip has a sensitive automatic identification and tracking function for environmental changes. Capacitive touch chips must also meet users' high experience requirements in terms of stability, sensitivity, power consumption, response speed, waterproof, operation with water, anti-vibration, and anti-electromagnetic interference in complex applications. In order to facilitate the user to independently control the sensitivity of the touch key in the application, the capacitive touch chip also sets the sensitivity control bit.