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Application of dust sensor in vehicle air purification system

Update: 2019-11-11 17:26 Source: LUFTMY

Nowadays, more and more people own private cars, and people begin to care about the air quality in cars. According to the data, staying in the car with air pollution for a long time will make people unconsciously poisoned, and gradually appear headache, fatigue and other symptoms. In severe cases, there will be dermatitis, asthma, low immunity, and even leukopenia.

Schematic diagram of vehicle air purifier
Schematic diagram of vehicle air purifier

The air pollution in the car mainly comes from the following pollution sources: first, the smoke and dust produced by the indoor air non circulation, and the suspended substance pollution produced by the toy cushion in the car; second, the toxic gases contained in the car decoration materials, mainly including benzene, formaldehyde, acetone, xylene, etc.

Vehicle pollution source
Vehicle pollution source

In addition to the regular cleaning of windows in the car, some new cars have been equipped with intelligent air purification system. The intelligent air purification system consists of air purifier, dust sensor, other gas detection sensors and control system. The air purifier can absorb, decompose or transform various air pollutants (dust, smoke, formaldehyde, etc.) in the car, and improve the air quality in the car. The dust sensor is used in the air purification system in the car. By detecting the dust concentration in the car, the control system intelligently regulates the air purifier, and the purifier filters the dust in the air to keep the indoor air fresh.

Vehicle air purifier PM2.5 sensor
Vehicle air purifier PM2.5 sensor

LUFTMY's dust vehicle particulate matter sensor LD15 is a sensor specially used to detect the dust concentration in the air, and provides solutions for indoor air quality. Ld15 can detect particles like cigarette particles and indoor dust. It can distinguish the concentration of different dust particles by outputting two different PWM signals.

LD15 laser dust sensor
LD15 laser dust sensor

Advantages of the LD15 vehicle air sensor by lovemay:

-- compact appearance, light weight W48*H40*D12mm

--PWM (pulse width modulation) output, UART output

-- able to distinguish small particles such as indoor cigarettes from large particles such as dust (pollen, dust and dank) (multi-protocol output pm0.1-pm10)

-- high measurement accuracy, high consistency and strong anti-interference ability

-- real-time response and continuous collection, low power consumption

Car air purifier
Car air purifier

TAGVehicle PM2.5 sensor Vehicle particulate matter sensor vehicle air sensor