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The laser particulate sensor monitors the air quality in the car

Update: 2019-12-30 16:29 Source: LUFTMY Reading: ↻ News

According to foreign media reports, Hyundai Motor Group announced the development of "intelligent air purification" system, which can monitor the air quality in the car and automatically filter the air in the car. The system can continuously test the air quality in the car until it reaches the "excellent" defined by modern times.

The system adopts advanced filtering innovation technology, which can automatically remove fine particles before passengers enter the car, and continuously filter the air during the whole driving process, so that passengers, especially allergic passengers, feel comfortable. And passengers can view the air quality in real time through the audio and video navigation screen in the car.

Hyundai Automobile classifies the air quality according to the standard of Korea environment Corporation, which divides the air quality into four grades: excellent, good, general and poor according to the quantity of fine particles. The traditional air purification system can only run for a period of time before it is shut down, while the modern "intelligent air purification" system will continuously monitor the air quality in the car. If the air quality drops to the "general" level, it will activate the purification function. It will continue to purify the air until the air quality becomes "excellent". Hyundai said that even if the external air quality is "poor", the system can purify the air in the car to "excellent" in a very short time.

In-car air quality
In-car air quality

Due to the accumulation of fine particles on the measuring lens, the common air monitoring sensors are prone to reliability problems. Modern automobile design an integrated laser sensor to measure the level of particles in the air to ensure the durability and reliability of the system.

The intelligent air purification system is strictly tested to ensure that the fan motor and sensor of the purifier can work normally in extremely hot and cold environment. Its high performance air filter can increase the absorption rate of fine particles from 94% to 99%. In addition, the system also has a charcoal deodorization function, which can automatically close the car windows and accelerate the purification speed.

The main means to detect and monitor particulate matter is through PM2.5 particulate matter sensors.

LD11 Laser dust sensor
LD11 Laser dust sensor

Principle of LUFTMY laser sensor dust particle sensor LD11 is a high-precision particle concentration sensor based on Mie scattering theory. It can continuously collect and calculate the number of suspended particles with different particle sizes in the air per unit volume, that is, particle concentration distribution, which is converted into mass concentration, and output in the form of general digital interface.The dust particle sensor LD11 has the characteristics of small volume, high precision, strong anti-interference, low power consumption, long life, short response time of zero error alarm rate, etc.The dust particle sensor can embed various instruments and meters related to the concentration of suspended particles in the air, such as air purifier, air detection equipment, air quality monitoring equipment in the vehicle or environmental improvement equipment, to provide timely and accurate concentration data.

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