Update: 2019-12-27 15:52 Source: LUFTMY
HVAC system is also called air conditioning system. Its functions include temperature, humidity, air cleanliness and air circulation. Next, let's understand the application of PM2.5 sensor GPS in MHVAC control system.
Air conditioning system
HVAC system and air conditioning supply air conditioning, heating or dehumidification are similar in principle. Under the action of compressor, the use of refrigerant will cause evaporation or condensation, which will cause the evaporation or condensation of surrounding air, so as to achieve the purpose of changing temperature and humidity.In the past, the HVAC system was started manually. When it was needed, the start switch started to operate, and when it was not needed, it was closed manually. Such problems are mainly not intelligent enough and energy-saving.Nowadays, the HVAC system is generally intelligent. There are many kinds of sensors in the system, such as temperature sensor, humidity sensor, dust sensor, etc. when the data detected by the sensor reaches the system threshold value, the corresponding regulating function will be started, and when the environment reaches the appropriate state, the standby state will be restored, which is convenient to use, and at the same time, the energy-saving effect will be achieved.
PM2.5 sensor in which is the real-time monitoring of the application of particle concentration of pollutants in the air, the output signal can be introduced into the building, family, or air monitor HVAC control system, a reminder to take series of measures for improving air quality, such as start air purification system, introducing from outdoor air to purify indoor air, replace the air filter, or indoor air conveying system early maintenance etc.
The infrared series of LUFTMY PM2.5~PM10 sensor is a special sensor for PM2.5/PM10.0, with strong performance consistency and high precision. Through the use of optical methods to detect the concentration of dust in the air, the dust detection sensor has greatly improved its ability to detect ultra-fine particles, and can detect particles of 0.3~10.0. This makes it more accurate than conventional sensors in determining PM2.5/PM10.0 weight density values.
There is an infrared led and a light receiving sensor in the LUFTMY infrared air sensor HPD05 dust sensor. The optical axis of the two intersects. When the airflow with dust passes through the intersection area of the optical axis, the dust will reflect infrared light. The light receiving sensor detects the infrared light emitted by the infrared diode reflected by the dust, and the signal conditioning circuit outputs the actual measured dust concentration in PWM or UART. This way is relatively simple and reliable, and the cost is relatively low, so it is suitable for this intelligent new fan.
The working principle of the infrared sensor HPD05 is to use the optical scattering principle to detect the concentration of dust in the air. The infrared particulate sensor HPD05 has two advantages: stable detection ability and high production efficiency. Infrared particle sensor HPD05 has the characteristics of small volume, high precision, low power consumption, short response time, and stable operation under high dust concentration, etc. This infrared particle sensor can be applied in air purifier, dust detector, air conditioning system, etc.