Solutions of Air Detector of DWIN Technology

With the development of economy and the improvement of living standard, more and more people realize the importance of environment and health. With the development of intelligent household appliances, air quality monitoring is becoming more and more automatic. With the increasing amount of people use intelligent air detector to detect indoor air quality, it could protect the health of their families.

1, Working principles of air detector

Air detector is a real-time instrument to detect formaldehyde, PM2.5, TVOC and temperature and humidity. Through its internal air detection sensor, the pollutant concentration can be accurately measured, and the air quality index AQI can be calculated. When the concentration exceeds the standard, the alarm will be given.

The working principle of air detector: the signals of formaldehyde sensor, PM2.5 sensor, TVOC sensor and temperature and humidity sensor are amplified by operational amplifier, and noise interference is removed by filtering circuit. Then, it is collected by ad, processed and calculated by 32-bit high-precision CPU, and then converted into pollutant concentration value and displayed.

Example of solution product

2, Solution of DWIN intelligent air detector

DWIN intelligent air detector solution is based on the dual 350MHz 8051 core T5L ASIC chip independently developed by DWIN technology. It is equipped with 4.3 inch IPS LCD with 800 * 480 resolution. It can carry wifi-10 module and vdm-10 offline speech recognition module. It has the characteristics of beautiful interface, convenient operation and good interaction effect. It supports various real-time detections of indoor air formaldehyde, carbon dioxide, PM2.5, TVOC, temperature and humidity, and is suitable for household air detectors.

Program function:

·24 bit true color for superior visual experience.

·High definition touch screen, touch operation is very smooth.

·Humanized interaction design, supporting voice interaction and dynamic background switching.

·Support one button distribution network, one key calibration.

·Support various kinds of sensor numerical display, support weather forecast, temperature and PM2.5 real-time curve display.

·Support horizontal and vertical screen switching, mobile detection is very convenient.

Example of solution products and components

Selection recommendation

Recommended model: dt30253304001a

·Size: 4.3 inches

·Resolution: 800 * 480

·Screen type: wide view IPS screen

·Color: 24 bit color, 16.7M color

·Touch type: capacitive touch screen

Example of solution product

Advantages of the scheme:

1. T5l ASIC single chip design, one chip to complete LCD display, touch control, sensor data acquisition and processing, switch / analog peripheral expansion, high integration, the overall cost is very competitive.

2. Cool and flexible GUI can integrate a variety of mature human-computer interaction functions, such as offline speech recognition, online semantic recognition, voice broadcast, human body sensing, etc., to help customers quickly complete product development.

3. Based on Dwin cloud,various APP applications on the mobile terminal can be realized.

DATASHEET FOR EXAMPLE